4soft

BACKGROUND

Please describe your company and position.

I am the Co-founder of Appventis

Describe what your company does in a single sentence.

Storylandia is an innovative mobile platform that enables parents to create unique, AI-generated personalized fairy tales for their children. We provide a safe, ad-free space where families can listen to custom stories, as well as educational and therapeutic tales developed alongside child psychologists. Ultimately, our goal is to foster children's emotional development and strengthen family bonds through the magic of shared storytelling.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Ensure Uncompromising Child Safety: Our absolute top priority was protecting our young users. We hired 4soft to design and implement a watertight content moderation system (a robust guardrails pipeline) to guarantee that all AI-generated stories were perfectly safe, age-appropriate, and free from harmful content.
• Deliver a Cohesive and Personalized User Experience: We wanted our users to have a seamless and engaging storytelling experience. 4soft's objective was to build an advanced embedding and retrieval system that could maintain story continuity (remembering past story elements) and power smart, personalized recommendations for families.
• Optimize AI Security and Cost-Efficiency: We needed to secure our AI infrastructure against vulnerabilities like prompt injections. Additionally, we tasked 4soft with establishing an automated evaluation framework so we could continuously test, compare, and optimize the cost and output quality of our AI models before rolling out changes to production.

SOLUTION

How did you find 4soft?

Referral

Why did you select 4soft over others?

Good value for cost

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The scope of work encompassed the end-to-end design, implementation, and optimization of the core AI architecture for our children's storytelling platform. 4soft was tasked with integrating advanced AI mechanisms into our backend infrastructure, with a heavy emphasis on child safety, output quality, and system scalability. Specifically, they engineered a rigorous content moderation system by building a Guardrails pipeline situated between the AI generation layer and the final user output. This involved configuring LangChain Guardrails alongside external moderation APIs and integrating a fine-tuned classifier dedicated explicitly to child-safe content checks. To support dynamic story continuity and personalized recommendations, 4soft developed a sophisticated retrieval system. They utilized a lighter LLM to generate story summaries, which were then converted into vector embeddings. These embeddings were stored using pgvector with HNSW indexing and cosine similarity search, seamlessly exposed through LangChain’s PGVector vectorstore. Finally, to secure our system and optimize operations, they established a comprehensive prompt evaluation environment using Promptfoo. This allowed us to automate the testing of our models against prompt-injection attacks and perform rigorous cost-to-quality comparisons across different LLMs before pushing any changes to production.

Key Deliverables:

- Custom Guardrails Pipeline: A fully functional, multi-layered moderation node combining LangChain, API integrations, and a fine-tuned classifier to ensure 100% child-safe content generation.

- Vector Embedding & Retrieval Architecture: A scalable pgvector-based database system featuring HNSW indexing and LangChain integration to power story continuity and personalized user recommendations.

- Prompt Evaluation Framework: An automated testing environment utilizing Promptfoo to ensure prompt-injection security and enable continuous model performance and cost analysis. 

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

The project delivered several highly measurable outcomes that directly impacted our platform's security, performance, and bottom line: 100% Child-Safe Content Delivery: The most critical measure of success was our safety rate. Thanks to the custom Guardrails pipeline and fine-tuned classifier, we achieved an exceptional block rate for inappropriate content, ensuring zero harmful outputs reach our young users.

Optimized LLM Operational Costs: By implementing the Promptfoo evaluation framework, we successfully identified and deployed lighter, more cost-effective models for specific tasks (like story summaries) without sacrificing quality. This measurably reduced our overall API and token generation costs.

Enhanced Prompt Security: Our automated testing suite dramatically improved our platform's security posture, successfully blocking simulated prompt-injection attacks and giving us quantifiable confidence before deploying any prompt changes to production.

Improved System Latency and User Engagement: The HNSW indexing within pgvector enabled lightning-fast similarity searches. This resulted in low-latency retrieval for story continuity, providing a seamless user experience that directly contributed to increased session durations and higher user retention among families. 

Describe their project management. Did they deliver items on time? How did they respond to your needs?

4soft’s project management was highly organized, transparent, and built on an agile methodology. We had clear visibility into their progress through regular sprint planning, daily communication channels, and scheduled syncs, which kept both teams perfectly aligned.

They consistently delivered milestones on time. Even when tackling complex technical challenges—such as configuring the custom Guardrails pipeline or optimizing the pgvector database—they accurately estimated timelines and strictly adhered to our deadlines.

Their responsiveness to our needs was exceptional. They didn’t just execute tasks; they acted as a proactive technological partner. Whenever we raised concerns, particularly regarding strict child safety requirements or cost optimizations, they were quick to suggest innovative solutions and easily adapted their workflow to accommodate our evolving priorities. 

What was your primary form of communication with 4soft?

Virtual Meeting

What did you find most impressive or unique about this company?

What stood out the most was their exceptional command of the entire LLMOps ecosystem, particularly their proactive focus on AI security and cost-efficiency. They went far beyond simple API integrations.

Building a multi-layered Guardrails pipeline specifically fine-tuned for child safety demonstrated a deep understanding of our unique, high-stakes domain requirements. Furthermore, their initiative to implement an automated evaluation framework to test for prompt injections and optimize model costs showed that they treated our product's long-term sustainability and security with the same care and rigor as an in-house team would. It is rare to find a technical partner that balances cutting-edge generative AI capabilities with such strict engineering discipline. 

Are there any areas for improvement or something 4soft could have done differently?

There are no significant areas for improvement, as their technical execution and dedication to our project were outstanding. If we had to point out one minor detail, it would be that because their engineering team operates at such a high, specialized level, there were a few moments early in the project where highly complex AI concepts (like the nuances of vector embeddings or HNSW indexing) could have been translated into business terms a bit sooner for our non-technical stakeholders. However, once we mentioned this, they immediately adjusted their communication style and proved to be excellent at explaining complex technical mechanics in a clear, accessible way.

BACKGROUND

Please describe your company and position.

I am the Co-Founder | COO of an e-commerce marketplace

Describe what your company does in a single sentence.

Our company develops an innovative eCommerce marketplace built around revenue-sharing models and decentralized applications, helping create a more transparent and future-ready online shopping experience.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Design and develop a modern eCommerce marketplace that aligned with our vision and could support our revenue-sharing model.
• Build decentralized applications that would make the platform more transparent, scalable, and ready for future growth.
• Create a stronger brand identity, including a new logo, while improving the platform’s overall functionality and user experience.

SOLUTION

How did you find 4soft?

• Online Search
• Clutch Site

Why did you select 4soft over others?

• High ratings
• Pricing fit our budget
• Great culture fit
• Good value for cost
• Company values aligned

How many teammates from 4soft were assigned to this project?

6-10 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The scope of work covered both the technical development and the visual direction of our eCommerce marketplace. 4soft was responsible for designing and developing a platform that could support our revenue-sharing model, while also building decentralized applications to make the system more transparent, scalable, and aligned with our long-term vision.

Their team worked on the core marketplace functionality, improved the overall user experience, and helped ensure the platform operated smoothly from a technical perspective. They also supported us with branding by designing a new logo and helping create a more professional visual identity for the project. 

Key deliverables included: 

1. Marketplace design and development 4soft designed and built the main eCommerce marketplace, focusing on functionality, usability, and alignment with our business goals. 
2. Decentralized applications They developed decentralized app components to support our revenue-sharing model and make the platform more future-ready.
   
   
3. Improved site functionality Their work enhanced the platform’s performance, structure, and overall user experience.
   
   
4. Logo and branding support 4soft created a new logo and contributed to the visual identity of the project.
   
   
5. Technical guidance and problem-solving Throughout the project, they provided technical expertise, addressed issues quickly, and adapted well to our evolving development requirements. 

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

The measurable outcomes of the project were reflected in the successful delivery of a marketplace that matched our original vision and improved the functionality of our site. 4soft delivered the planned development work on time, including the marketplace platform, decentralized application components, and a new logo for our brand.

One of the strongest indicators of success was the improvement in the platform’s usability and technical structure. The site became more functional, better aligned with our revenue-sharing model, and more prepared for future growth. Their work gave us a stronger foundation to build on as our business develops.

Another important outcome was the team’s ability to quickly address issues and respond to feedback throughout the process. This helped keep the project moving efficiently and gave us confidence that the final product would support both our current needs and long-term goals. 

Describe their project management. Did they deliver items on time? How did they respond to your needs?

4soft managed the project in a very efficient and professional way. They delivered the agreed items on time and kept the development process moving smoothly, which was especially important for a project involving both marketplace functionality and decentralized application components.

Their team was responsive, organized, and easy to communicate with. Whenever we had questions, concerns, or adjustments, they addressed them quickly and with a problem-solving mindset. They did not just follow instructions mechanically; they understood our goals and adapted their approach to meet our project’s development criteria.

Overall, their project management exceeded our expectations. They combined timely delivery with strong technical guidance, clear communication, and the flexibility needed to support an evolving eCommerce platform. 

What was your primary form of communication with 4soft?

• In-Person Meeting
• Virtual Meeting
• Email or Messaging App

What did you find most impressive or unique about this company?

What impressed us most about 4soft was their adaptability and ability to understand the bigger picture behind our project. They were not just focused on completing tasks; they actively looked for the best technical solutions to match our marketplace, decentralized applications, and revenue-sharing model.

Their technical expertise was also a major strength. They were able to take complex requirements and turn them into practical, functional solutions that aligned with our vision. Their forward-thinking approach made the platform feel more future-ready, not just built for the present moment.

What made them unique was the combination of efficiency, creativity, and flexibility. They delivered on time, responded quickly to our needs, and consistently showed that they could adjust to our development criteria without losing quality or momentum. 

Are there any areas for improvement or something 4soft could have done differently?

There are no major areas for improvement that stood out to us. Overall, 4soft delivered the project on time, responded quickly to our needs, and provided work that aligned well with our vision.

UPDATED REVIEW

This review was published on April 18, 2026.

Tyler Doussan
Founder & CEO, Champ AssociationeCommerce

Estonia

1-10

Nov 2023 - Ongoing

$50,000 to $199,999

Project summary
An e-commerce company has hired 4soft to design and develop a marketplace and decentralized apps for their revenue-sharing models. They've also designed a new logo for the client.

Feedback summary
4soft has delivered work that aligns with the client's vision, effectively enhancing the site's functionality. The team exceeds expectations with their technical expertise, efficiency, and forward-thinking approach. They consistently deliver on time and promptly addresses issues and concerns.

BACKGROUND

Please describe your company and position.

I am the Founder/CEO of Champ Association

Describe what your company does in a single sentence.

We provide phygital marketplace solutions for businesses interested to enter web3 via tokenization models, such as products that reward digital assets.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Create a phygital marketplace based upon our concepts.
• Build dAPPs required for our revenue sharing models.

SOLUTION

How did you find 4soft?

• Online Search
• LinkedIn

Why did you select 4soft over others?

• High ratings
• Great culture fit
• Good value for cost
• Company values aligned

How many teammates from 4soft were assigned to this project?

6-10 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

In an era where digital innovation is constantly evolving, our collaboration with 4Soft has been a game-changer. Their expertise in blending Web2 and Web3 technologies has been instrumental in developing our phygital marketplace, a seamless fusion of the physical and digital worlds. 
4Soft stands out for their extraordinary efficiency and collaborative approach. Right from the start, they established a clear communication channel, ensuring our vision and requirements were perfectly aligned with their strategy. Their project management skills were evident in the ability to deliver high-quality work within tight deadlines. This was particularly impressive given the complexity of integrating advanced Web3 technologies with our existing Web2 framework that needed to be rebuilt. 
Their team's adaptability and proactive approach in addressing challenges made the entire process smooth and hassle-free. The technical mastery of 4Soft within the Web2 and Web3 industry has been a cornerstone of our project’s success. In the Web2 space, they revamped our platform’s user interface and back-end systems, ensuring a robust, secure, and intuitive user experience. 
However, it was in the realm of Web3 that 4Soft truly excelled. They adeptly integrate blockchain technology with our novel business concepts, enabling features like secure, transparent transactions and the incorporation of NFTs, which are vital to our phygital marketplace concept. Moreover, 4Soft has demonstrated exceptional dedication in augmenting our team with specific profiles, such as in our marketing department and design team. 
They have made significant efforts to identify and secure the precise talent required to fulfill our needs, further emphasizing their commitment to our project’s success. In conclusion, 4Soft has played a pivotal role in transforming our marketplace and overall technology suite, seamlessly bridging the gap between the physical and digital realms. 
Their blend of efficiency, technical expertise, and forward-thinking approach has not only met but exceeded our expectations. The current developments are leading toward a cutting-edge digital platform that stands as a testament to their skill and dedication. As we continue to evolve in the digital marketplace, 4Soft remains an invaluable partner in our journey towards innovation and excellence.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Our branding and overall presence is much more aligned with what we envisioned. Their team was capable of providing a beautiful new logo, branding, and UI/UX design based upon our existing platform and feedback rounds. The website functionality is much smoother and the creation of web3 components is bridging the gap that existed for our marketplace and business models.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

Everything has been delivered within the timeline defined for sprints and we are ongoing with developments. Whenever there was any sort of misunderstanding or communication barriers it was quickly solved.

What was your primary form of communication with 4soft?

Email or Messaging App

What did you find most impressive or unique about this company?

We're impressed with their adaptability to solving our project's development criteria, such as finding new staff where needed or making novel blockchain concepts come to life.

Are there any areas for improvement or something 4soft could have done differently?

There is always room for improvement with anything in life, but we are confident in saying little improving is required for 4Soft because their work flow is more than efficient for our needs!

STAR RATINGS
Overall rating: 5

Quality: 5

Cost: 5

Schedule: 5

Willing to refer: 5

BACKGROUND

Please describe your company and position.

I am the Executive of VueVisit

Describe what your company does in a single sentence.

VueVisit is a platform that brings clarity to healthcare by helping providers manage patient journeys, reduce waiting times, and keep patients informed at every step of the care process.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Our goal was to address a very real operational challenge in healthcare - reducing no-shows and improving the reliability of appointment scheduling, especially for high-demand time slots. At the same time, we wanted to increase trust in the system (both from the patient and provider perspective) and explore the use of blockchain-based mechanisms to support transparency and accountability, while keeping the solution compliant and user-friendly.

SOLUTION

How did you find 4soft?

Referral

Why did you select 4soft over others?

• High ratings
• Close to my geographic location
• Pricing fit our budget
• Great culture fit
• Good value for cost
• Referred to me
• Company values aligned

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The project focused on building a reliable and scalable booking and settlement layer that supports more accountable patient behavior and better utilization of available appointments.

The team was responsible for designing and implementing key components, including a commitment-based booking mechanism with financial incentives, a trust and reputation layer, secure credential verification, and a user-friendly interface.

Where relevant, blockchain technology was used to support selected elements of trust, transparency, and transaction handling, without exposing users to unnecessary complexity.

A key part of the solution was also designing an architecture that separates sensitive medical data from the transaction layer, ensuring compliance while maintaining performance.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

The solution contributed to a noticeable reduction in no-show rates, which improved the utilization of available appointment slots and increased the predictability of revenue.

The booking process became more structured and reliable, especially for last-minute appointments. From a user perspective, the experience was smooth and intuitive, which helped reduce friction and improve engagement.

This included the use of modern technologies where relevant.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

4soft demonstrated a highly efficient and focused project management approach, operating
as a small, specialized team with clear ownership and fast decision-making. The collaboration
was structured, with well-defined milestones and regular progress updates, which ensured full
transparency throughout the development process.

They consistently delivered key components on time, including smart contracts, frontend
features while maintaining high quality standards. Any potential risks or
blockers were communicated early, allowing for quick alignment and resolution.
The team was very responsive to our needs, adapting quickly to changing requirements and
providing practical, solution-oriented recommendations. Their proactive communication and
flexibility made the collaboration smooth and ensured that the final solution aligned closely with
both business and technical expectations.

What was your primary form of communication with 4soft?

Virtual Meeting

What did you find most impressive or unique about this company?

What impressed us most was their ability to translate complex technical concepts, including blockchain, into a solution that makes sense from a real business and user perspective.

They approached the project as a real problem to solve, not just a technical task, and focused on mechanisms that directly address operational challenges such as no-shows and trust.

Are there any areas for improvement or something 4soft could have done differently?

At the beginning of the project, aligning healthcare-specific requirements with the proposed technical approach required some additional discussions. However, once this was clarified, the collaboration moved very smoothly and the team delivered high-quality results aligned with our expectations.

We are very satisfied with both the collaboration and its results.

BACKGROUND

Please describe your company and position.

I am the Projects Manager of VTech

Describe what your company does in a single sentence.

VTech is a global company that designs, manufactures, and distributes a wide range of consumer electronics, including electronic learning products for children, telecommunications devices like cordless and business phones, and also provides contract manufacturing services for other companies.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• To design, implement, and optimize a secure, scalable AWS infrastructure, streamline the deployment process with fully automated CI/CD pipelines, and enhance system performance, stability, and security to support the client’s application and business growth.

SOLUTION

How did you find 4soft?

• Online Search
• Referral

Why did you select 4soft over others?

• High ratings
• Close to my geographic location
• Referred to me

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

4soft delivered comprehensive DevOps services to build and optimize a secure, scalable AWS cloud infrastructure supporting a high-availability application. Our team engineered fully automated, environment-specific GitLab CI/CD pipelines, enabling rapid, reliable, and repeatable deployments.

We fine-tuned the cloud architecture for maximum performance and cost efficiency, while embedding security best practices through system hardening, access controls, and proactive monitoring. The infrastructure was structured to maintain clear separation between staging, testing, and production, ensuring smooth release management and risk-free rollouts.

Key deliverables included:

Fully automated, environment-specific GitLab CI/CD pipelines.

AWS architecture optimized for performance and cost efficiency.

Hardened infrastructure with robust access control policies.

Proactive monitoring and alerting via CloudWatch, Kibana, and Sentry.

Streamlined deployment process, reducing delivery time and risk.

Highly stable and scalable production environment supporting business growth.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

• Reduced deployment time through full CI/CD automation.
• Increased application stability and resilience, resulting in fewer production incidents.
• Optimized AWS resource usage, improving cost efficiency without sacrificing performance.
• Faster and more reliable release cycles thanks to clear environment separation.
• Enhanced security posture with hardened systems and controlled access.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

 4soft demonstrated a deep understanding of our needs. They implemented efficient management methodologies that allowed for effective communication and clear goal-setting at every stage. This gave us the confidence that every element of the project was carefully thought out and coordinated.

What was your primary form of communication with 4soft?

Virtual Meeting

What did you find most impressive or unique about this company?

The 4soft stands out for its strong specialization in Cloud services. They are open to suggestions and proactive, which makes them a great partner for businesses looking to build innovative, future-proof solutions. Their team includes a significant number of senior engineers with cross-disciplinary knowledge, which allows them to tackle complex projects.

Are there any areas for improvement or something 4soft could have done differently?

4soft is already praised for excellent communication and proactive approach. For example, the company could introduce new tools or automated reports to further streamline the flow of information, especially in large and complex projects. This would be another step in building the transparency and trust that are already their key strengths.

BACKGROUND

Please describe your company and position.

I am the Member of Ask Elder Beacon LLC

Describe what your company does in a single sentence.

We are a start-up company dedicated to providing caregivers with practical, reliable, and unbiased information and services, helping them manage their daily responsibilities of caring for elderly parents, relatives, or friends.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Create initial design for the company website.
• Develop a beta version of the company website.

SOLUTION

How did you find 4soft?

Referral

Why did you select 4soft over others?

• Great culture fit
• Good value for cost
• Referred to me
• Company values aligned

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

1. Initial web design work from concept development to Figma files.
2. Design and implement AI capabilities using the ChatGPT API.
3. Develop and implement the company website based on the final design.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

1. All phases of the project were completed on time and on or under budget.
2. High-quality beta website that potential users validated via customer research.
3. Completely transparent process throughout. 
4. No issues with communications despite the time zone difference (6 hours).

Describe their project management. Did they deliver items on time? How did they respond to your needs?

1. On time, on or under budget in all phases of the project.
2. Prompt responses to questions and issues.

What was your primary form of communication with 4soft?

• Virtual Meeting
• Email or Messaging App

What did you find most impressive or unique about this company?

1. "Intimate" project management style despite the project not being a large one.
2. Involvement of senior staff members from 4Soft ensured that decisions and actions were taken promptly and without delay.

Are there any areas for improvement or something 4soft could have done differently?

No improvements needed.

BACKGROUND

Please describe your company and position.

I am the CEO of Synergy Codes

Describe what your company does in a single sentence.

Synergy Codes is a data-visualization-focused software agency that designs, consults on, and develops interactive BI and analytics products—including dashboards, diagram and workflow tools (using GoJS, React Flow, Yjs, AI enhancements, etc.)—to help clients transform complex data into intuitive, insightful user experiences.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Enhance Data Privacy and User Autonomy: Enable users to maintain control over their personal data by avoiding reliance on centralized identity providers.
• Implement Decentralized Identity (DID) Solutions: Integrate blockchain-based identity systems to securely manage user authentication and access control across real-time collaborative.
• Streamline Permission Management in Collaborative Environments: Use decentralized technologies to simplify and secure permission settings for multiple users working simultaneously within tools built using frameworks like Yjs.

SOLUTION

How did you find 4soft?

Referral

Why did you select 4soft over others?

Good value for cost

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The project aimed to enhance the security and autonomy of users within Synergy Codes’ collaborative platforms by implementing decentralized identity and access management. 4soft was responsible for designing the system architecture, developing smart contracts to manage identities and permissions, and integrating these solutions into the existing Yjs-based environment. Key deliverables included: a fully functional DID system prototype, integration API for real-time collaborative tools, technical documentation, and deployment pipelines for blockchain nodes and identity services. Additionally, 4soft provided ongoing support for performance tuning and compliance with emerging Web3 standards.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

The project led to the successful implementation of a decentralized identity layer integrated with real-time collaboration tools. Measurable outcomes included a 40% reduction in login-related support tickets, a 25% improvement in onboarding time for new users due to simplified authentication, and zero reported security breaches post-implementation. Additionally, performance benchmarks showed no latency added to the collaborative experience, proving the feasibility of secure, decentralized access without compromise on UX.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

4soft demonstrated a highly organized and responsive approach to project management. All milestones were delivered on time or ahead of schedule, and communication was transparent throughout the process. They adapted quickly to evolving requirements, maintained excellent documentation, and conducted regular progress reviews. Their agile workflow ensured seamless collaboration between technical teams on both sides.

What was your primary form of communication with 4soft?

Virtual Meeting

What did you find most impressive or unique about this company?

What stood out most was 4soft’s ability to bridge deep blockchain expertise with real-world application needs. Their team not only understood the technical complexity of decentralized identity but also translated it into a user-friendly solution that integrated flawlessly with our existing architecture. Their proactive attitude, security-first mindset, and genuine interest in long-term impact made them an exceptional partner.

Are there any areas for improvement or something 4soft could have done differently?

No, there were no areas for improvement. The collaboration went smoothly, and 4soft delivered exactly what was expected—both in terms of quality and timeliness.

BACKGROUND

Introduce your business and what you do there.

I’m the CTO of Lumia. We’re a modular layer-2 blockchain that unifies liquidity from centralized and decentralized exchanges. Our platform enables the seamless integration of real-world assets and provides builders with scalable access to major Web3 markets.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with 4soft?

We needed to boost our output in smart contract development. We also wanted to build up our product and enhance the capabilities of our products, such as Lia Chain, Lia Stream, and Lia HyperStaking.

SOLUTION

What was the scope of their involvement?

We hired 4soft to help us with smart contract development using Solidity and EVM. They’ve been tasked across multiple ventures within the company to build smart contracts based on requirements and improve our offerings. So far, they’ve developed staking contracts, cross-chain bridging contracts, and yield fund contracts.

What is the team composition?

We work with one teammate from 4soft.

How did you come to work with 4soft?

We found 4soft through a personal referral and previous work experience with them. We chose 4soft over other options because of their trustworthiness, reliability, and ability to build and develop complex projects based on clear requirements.

What is the status of this engagement?

We started working together in January 2025, and the engagement is ongoing.

RESULTS & FEEDBACK

What evidence can you share that demonstrates the impact of the engagement?

4soft has developed and audited contracts and deployed them on Lia Chain. We’ve also reached several milestones.

How did 4soft perform from a project management standpoint?

4soft delivers on time and responds well to our needs. We communicate via Telegram.

Are there any employees from the service provider's team that you would like to give a shout-out to in this review?

Damian (Senior Developer) has been great. He has the autonomy to get things done with close to zero management.

What did you find most impressive about them?

4soft has been effective in managing challenges around limitations across chains, time sensitivity, testing coverage, and audit processes.

BACKGROUND

Please describe your company and position.

I am the CEO of greenfields sienkiewicz

Describe what your company does in a single sentence.

Our company provides a secure and user-friendly online platform for fiat exchange and crypto

exchange, enabling fast and convenient transactions tailored to users' needs.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• We hired 4soft to implement Interchain Communication, enabling seamless data exchange and cooperation between applications running on different blockchains (Arbitrum and Polygon). This removed the barriers between networks and allowed both users and applications to access richer functionality and broader resources. As a result, users could interact with the application without needing to know which network they were on, while still benefiting from features available only on other chains.
• Another key objective was to enable Cross-chain Staking. 4soft delivered a solution where users could stake tokens on one network (Arbitrum), while receiving rewards or staking outcomes from another (Polygon). This approach allowed for more flexible and efficient staking strategies, and ultimately helped attract more users and liquidity to the ecosystem.
• We also tasked 4soft with building a Multichain / Omnichain presence. The application was developed to operate simultaneously across multiple chains, allowing users from various blockchain environments to access the same features without needing to migrate assets. No matter which network a user started on, they could fully utilize the app and its services, ensuring a consistent and unified experience across ecosystems.

SOLUTION

How did you find 4soft?

Referral

Why did you select 4soft over others?

High ratings

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The scope of work focused on building a cross-chain, interoperable blockchain

application with advanced staking functionality and omnichain support. 4soft was

responsible for the full development lifecycle — from solution architecture and smart

contract development to integration, testing, and deployment.

Key deliverables included:

● Interchain Communication Layer:

A custom interoperability layer that enabled real-time data exchange and

function execution between Arbitrum and Polygon, allowing applications to

interact across chains seamlessly.

● Cross-chain Staking Module:

A mechanism that allowed users to stake tokens on Arbitrum and receive

rewards or staking results sourced from Polygon. This module introduced new

possibilities for staking strategies and liquidity optimization.

● Omnichain Application Architecture:

A unified application framework that runs on multiple blockchains

simultaneously, allowing users to access services from any supported network

without migrating assets.

● Smart Contract Development:

Custom-built, audited smart contracts tailored to handle cross-chain logic,

staking mechanisms, and multi-network coordination.

● Backend Services & Orchestration:

A set of APIs and background services responsible for orchestrating

cross-chain operations, ensuring data consistency and synchronization across

networks.

● Security Audits & T esting:

Comprehensive QA processes, including unit testing, integration testing, and

security reviews to ensure the robustness of all components.

● Deployment & Support:

Assistance with deployment on mainnet environments, along with ongoing

support for updates and optimizations as needed.

This end-to-end delivery ensured a fully operational, secure, and user-friendly

multichain product capable of scaling across different ecosystems.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

The project resulted in several measurable outcomes that clearly demonstrated both technical

success and user adoption. Following the implementation of interchain communication and

omnichain architecture, we observed increased user engagement across both Arbitrum and

Polygon networks. Users interacted more freely with the application, without needing to

understand or switch between chains, which led to a more seamless and satisfying experience.

The cross-chain staking functionality gained traction quickly after launch. A large number of

users began staking tokens on Arbitrum while receiving rewards from Polygon, which in turn

contributed to higher levels of participation and improved retention. This flexibility also

attracted new users and increased the overall attractiveness of the staking model.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

4soft demonstrated a high level of professionalism in project management throughout the

collaboration. They followed a structured, agile approach with regular syncs, clear milestones,

and transparent communication. All key deliverables were completed on time or ahead of

schedule, and they adapted quickly when priorities shifted or when new requirements

emerged.

One of the most valuable aspects of working with 4soft was their responsiveness. Whether it

was a technical clarification, strategic discussion, or last-minute adjustment, they were always

available and proactive. Their team not only executed on the development side but also

brought valuable insight and suggestions that improved the overall direction of the project.

They weren’t just a service provider — they felt more like a true partner. That mindset really

made a difference, especially in a project that spanned multiple chains and required a deep

understanding of complex blockchain mechanics.

What was your primary form of communication with 4soft?

In-Person Meeting

What did you find most impressive or unique about this company?

What stood out the most about 4soft was their deep technical expertise combined with a

pragmatic, solution-oriented mindset. They truly understand the challenges of multichain

development — not just on a theoretical level, but in terms of actual implementation,

interoperability, and user experience. That’s rare.

We were especially impressed by their ability to anticipate potential issues before they became

problems, and by how they consistently came to the table with ideas — not just tasks. Whether it

was optimizing our cross-chain architecture or suggesting better ways to handle user flows,

they added real value beyond the scope of the brief.

Also, their flexibility and willingness to adapt mid-project, without compromising on quality or

timelines, made them feel more like a strategic partner than a typical vendor. It’s clear they care

about the success of the product as much as we do.

Are there any areas for improvement or something 4soft could have done differently?

No, I don’t see any areas for improvement – 4soft carried out their work very professionally and

reliably. Everything went smoothly and met our expectations.

BACKGROUND

Please describe your company and position.

I am the Co-founder and General Manager of Popularium, Inc.

Describe what your company does in a single sentence.

Popularium Inc. is a game development studio, crafting immersive and innovative gaming experiences for a global audience.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire 4soft to accomplish?

• Develop a multiplatform game(Web, PC, Mobile), “Chaos Agents” using Unity 3D.
• Create a seamless Web out-of-game experience for “Chaos Agents”.
• Implement project assumptions and work around WebGL limitations.

SOLUTION

How did you find 4soft?

Referral

Why did you select 4soft over others?

• High ratings
• Good value for cost
• Company values aligned

How many teammates from 4soft were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

The collaboration with 4soft covered a wide array of tasks, requiring diverse expertise, agile methodologies, and a commitment to quality and innovation. The partnership was successful in realizing several ambitious projects, each tailored to specific needs, and demonstrates the value of this ongoing relationship. Our partnership is comprehensive and involved an intricate scope of work facilitated by a deep level of collaboration and technological innovation. 

Chaos Agents Game:

• Scope of Work: The primary focus of this part of the project is the technical development of a fully-fledged 3D game running on multiple platforms - Web, PC and eventually Mobile. It is implemented using the Unity 3D engine, a powerful tool for creating both 2D and 3D games.
• Key Deliverables: 
  • Implementation of Prototyped Game: Creating a working prototype and establishing the foundational architecture and mechanics of the game. Beginning with prototyping and moving to production quality development. 
  • Working Around WebGL Limitations: WebGL is often used to render 3D graphics in a web browser, and this part of the deliverable includes creating a rich gaming experience within the constraints and limitations of WebGL.

Chaos Agents Out of Game Experience:

• Scope of Work: This part of the project includes the design and development of the entire web experience surrounding the game itself. This includes deep integration with the game services themselves to deliver items like dynamic leaderboards and a robust mission mission system with the goal of offloading expensive custom Unity work to the much more nimble React and web world to iterate more quickly.
• Key Deliverables:
  • Ongoing Project Design: This includes creating mockups of user interfaces, graphics, and pushing the overall aesthetics of the out of game experience. 
  • API Development: Creating connections between different parts of the system, allowing various components to communicate and share data efficiently. A large focus was being a bridge between our server and client architecture.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Successful game development, effective collaboration, and creative problem-solving. 4Soft was flexible and continues to be a true pleasure to partner with.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

4soft was impressive in their ability to translate our creative ideas into a functional game. They were on time, highly responsive, and most importantly incredibly collaborative.

What was your primary form of communication with 4soft?

• Virtual Meeting
• Email or Messaging App

What did you find most impressive or unique about this company?

Their expertise in Unity 3D and creative approach to problem-solving are particularly impressive. The engineers from 4soft outperformed our expectations.

Are there any areas for improvement or something 4soft could have done differently?

Our collaboration was seamless, leaving no room for dissatisfaction or unmet expectations. We have no issues with this partnership.