L-One Systems is a German software development company specializing in custom business software for mid-sized companies.
We help businesses modernize internal systems, automate processes, and build new digital products – with clear scope, predictable costs, and a partner who takes responsibility from the first idea to operation.
What we do:
ERP- and CRM-related systems
Custom business software & web applications
SaaS platforms and digital products
AI-powered applications and process automation
Modernization of legacy software
Why mid-sized companies choose L-One:
Investment certainty: Clearly defined milestones are delivered at a fixed price, so you know what you will receive and what it will cost
Business first: We translate business goals into practical software solutions and prioritize what creates real value
One partner from idea to operation: Business Analysis, UX, architecture, development, rollout, hosting, maintenance, and support
Personal & accountable: Business Analysis, Project Management, and Tech Leadership are based in Darmstadt, Germany, with a dedicated contact throughout the project
Strong engineering capacity: Our experienced development team in Damascus is fully integrated into L-One
AI-first engineering: We use AI to increase development speed and efficiency while experienced engineers remain responsible for architecture, quality, security, and maintainability
Founded in 2010, L-One Systems combines German business and project expertise with experien
L-One Systems GmbH is noted for providing good value for cost, with clients highlighting their pricing as fitting budgets and offering high-quality deliverables. Specific project costs weren't detailed, but overall satisfaction with pricing suggests competitive rates.
L-One Systems GmbH showcases strong expertise in software development, cloud solutions, and AI integration, catering to diverse sectors including security, SaaS, and agriculture. Their technical proficiency is consistently highlighted by clients across projects.
Areas for Improvement in Onboarding
While generally positive, some feedback suggests that L-One Systems GmbH could improve in areas such as faster onboarding and clearer expectation management to further enhance project outcomes.
High-Quality Deliverables
Feedback from clients indicates that L-One Systems GmbH consistently delivers high-quality work that meets or exceeds expectations. Their dedication to maintaining high standards is evident across various projects.
Dedication and Commitment
Clients are consistently impressed by the dedication and commitment of L-One Systems GmbH's team, which is reflected in their hard work, timely delivery, and proactive problem-solving.
Cultural and Value Alignment
Many clients highlight the cultural fit and alignment of values as key reasons for choosing L-One Systems GmbH. This alignment helps in seamless collaboration and achieving project objectives efficiently.
Effective Project Management
Clients consistently praise L-One Systems GmbH for their effective project management, timely delivery, and responsiveness. Their adherence to agile methodologies and proactive communication ensures projects remain on track and client needs are met.
IT Staff Augmentation for Software Solutions Agency
Featured Review
IT Staff AugmentationWeb Development
Linux serverAngularPython
Confidential
Feb. - Oct. 2024
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0
"The communication took place daily, and the quality was outstanding."
Nov 26, 2024
CEO, Software Solutions Agency
Anonymous
Verified
Other industries
Esslingen, Germany
11-50 Employees
Online Review
Verified
L-One Systems GmbH provided IT staff augmentation services for a software solutions agency. The team extended the client's development capacity and supported their development team.
L-One Systems GmbH delivered high-quality work with agility. The team communicated daily and provided outstanding services, and internal stakeholders praised the service provider's work culture and team dynamic.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of a software company
Describe what your company does in a single sentence.
W11K develops individual software solutions for customer portals, configurators and web apps. We provide you with consulting, user-centered design, software development and operation from a single source.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish? Extend developer capacity
SOLUTION
How did you find L-One Systems GmbH?
Online Search
Other
Why did you select L-One Systems GmbH over others?
Pricing fit our budget
Great culture fit
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
It was very easy for us to get support for our development team. Communication was very easy and transparent all the time, also thanks to the support of the team in Germany.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
High quality and speed
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Yes, the communication took place daily, and the quality was outstanding
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
What did you find most impressive or unique about this company?
The combination of contacts in Germany with affordable and good developers
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
No improvements needed.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Software Development Consulting for Security Solutions Co
IT Strategy Consulting
IT AssessmentIT ConsolidationIT Operations Management Consulting
Confidential
Apr. - May 2025
5.0
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
4.5
"L-ONE's professional and open approach makes it very easy to get engaged and feel supported in the project."
May 22, 2025
Engineer, Alinotec GmbH & Co. KG
Anonymous
Verified
Other industries
Darmstadt, Germany
51-200 Employees
Online Review
Verified
L-One Systems GmbH provided software development consulting services for a security solutions company. The team assessed the client's in-house software repositories and analyzed Jira definitions.
L-One Systems GmbH successfully delivered a detailed report that outlined issues and provided resolution recommendations. The team reached all milestones on time and fostered a collaborative environment. Their professionalism, openness, and assertiveness impressed the client.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am an Engineer of Alinotec GmbH & Co. KG
Describe what your company does in a single sentence.
Alinotec is a provider of security solutions for businesses with a focus on mobile and flexible solutions for construction sites.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Assess problems in the current in-house software development
SOLUTION
How did you find L-One Systems GmbH?
Online Search
Why did you select L-One Systems GmbH over others?
High ratings
Close to my geographic location
Great culture fit
Company values aligned
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
During the engagement with L-ONE a analysis of the current state and setup of Alinotec's in-house software development was done. For this workshops have been undertaken with key stakeholders of Alinotec and personnel from L-ONE as well as analyses by L-ONE of the repositories and software as well as the definitions of work in Jira.
L-ONE then provided an assessment report with their findings which was discussed and explained again in another meeting to deepen the understanding of the problems they see with Alinotec's in-house software development.
Key Deliverables:
Assessment of the current state of Alinotec's in-house software development
Written assessment report
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
A detailed report with an assessment of the problems of the software development with recommendations on how to tackle these was provided by L-ONE.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
All of the agreed upon deliverables and milestones were reached on time and the engagement was characterized by close collaboration.
What was your primary form of communication with L-One Systems GmbH?
In-Person Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
L-ONE's professional and open approach makes it very easy to get engaged and feel supported in the project. The L-ONE team was very assertive and helped greatly in being honest and open about the problems we're facing in our processes and role definitions.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
We were very satisfied with the services L-ONE provided and at the time of writing there were no complaints or improvements known.
RATINGS
5.0
Quality
4.5
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
4.5
NPS
AI Platform Dev & Azure Architecture for Consulting Company
AI DevelopmentCustom Software DevelopmentMicroservices Architecture Services
Azure PlatformChatbots & Conversational AIComputer VisionOpen AI Dall-E 2Open AI GPT-3PythonSQLTypescriptsvelte
Confidential
Sep. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"The team's strong skills are another highlight, reflecting the company's dedication to maintaining high standards."
Feb 26, 2025
Manager, just experts GmbH
Viola Herbert
Verified
Other industries
Duesseldorf, Germany
11-50 Employees
Online Review
Verified
L-One Systems GmbH has developed a corporate AI platform for a digital consulting company. The team has built a web app framework using Azure functions and services and created an engineering system.
L-One Systems GmbH's work has resulted in a stable and reliable platform for the client that has been operational for over a year. The team has established strategic partnerships with key industry players and has been responsive during the engagement. L-One Systems GmbH has a diverse environment.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Manager of just experts GmbH
Describe what your company does in a single sentence.
Just Experts is a company that specializes in transforming businesses by guiding organizations towards digital excellence through strategy and digital consulting services.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Building a corporate AI platform using Azure functions and services
Building a modern web app framework for scalable solutions
Developing a long-term software development partner for cloud app solutions
SOLUTION
How did you find L-One Systems GmbH?
Referral
Why did you select L-One Systems GmbH over others?
High ratings
Pricing fit our budget
Good value for cost
Company values aligned
How many teammates from L-One Systems GmbH were assigned to this project?
6-10 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Development of Frontend and Backend Applications:
Frontend Development: This involves designing and implementing user interfaces using modern web technologies like Svelte. The goal is to ensure a responsive, intuitive, and accessible user experience.
Backend Development: This entails building server-side logic, databases, and APIs to support the frontend functionalities. Mostly based on Python alongside database management systems like SQL, PostgreSQL, or CosmosDB.
Continuous Architecture Development:
Infrastructure Design: Establishing a scalable and robust infrastructure using cloud services (Azure) to support application deployment and maintenance.
Service Design: Creating microservices and service-oriented architectures to enhance modularity, scalability, and flexibility of the application.
API Definition: Developing clear and efficient API specifications and documentation to facilitate seamless integration between different system components and third-party services.
Agile Project Management on DevOps Principles:
Implementing agile methodologies (Scrum) to ensure iterative development, quick feedback loops, and continuous improvement.
Adopting DevOps practices to foster collaboration between development and operations teams, automate deployment pipelines, and ensure continuous integration and delivery (CI/CD).
Researching and Developing Prompt and RAG Agent and Agentic Workflows:
Prompt Engineering: Investigating and creating effective prompt strategies to improve the interaction and response quality of AI models.
RAG Agent Development: Implementing Retrieval-Augmented Generation (RAG) agents to enhance AI-driven content generation by leveraging external knowledge bases.
Agentic Workflows: Designing workflows that allow autonomous or semi-autonomous agents to perform tasks, make decisions, and adapt to new information in real-time.
Key Deliberables
Functional Frontend and Backend Systems: Delivery of a fully functional and integrated frontend and backend that meet specified requirements.
Comprehensive Documentation: Detailed documentation covering architecture design and API specifications.
CI/CD Pipeline Setup: A fully operational continuous integration and continuous deployment pipeline to facilitate efficient software delivery.
Operational RAG Agents: Deployment of working RAG agents capable of enhancing application functionalities through intelligent data retrieval and content generation.
Agile Project Artifacts: Delivery of agile project management artifacts such as sprint plans, retrospectives, and product backlog items, ensuring transparency and traceability.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Sustained Functionality and Reliability: The AI platform and service have been operational and fully functional for over 12 months. This demonstrates not only the platform’s stability and reliability but also its ability to meet long-term operational demands without significant interruptions.
Widespread Adoption Across Organizations: The platform is successfully running in more than 20 environments across 10 different organizations. This broad adoption underscores the platform’s versatility and appeal to a diverse range of clients, showcasing its adaptability and the value it provides across various sectors.
Continuous Sales Growth: There has been a consistent increase in sales, driven by the ongoing development and enhancement of the platform. This indicates a growing market demand and customer satisfaction, reflecting positively on the platform’s commercial viability and the effectiveness of its sales strategy.
Enhanced User Engagement and Satisfaction: User feedback has been very positive, with high levels of engagement and satisfaction reported. This is evidenced by increased user retention rates and repeat business from existing clients, further validating the platform’s effectiveness and user-centric design.
Innovation and Feature Expansion: Over the past year, several innovative features have been introduced, enhancing the platform’s functionality and keeping it at the forefront of technological advancement. This continuous innovation has been a key factor in maintaining competitive advantage and client interest.
Strategic Partnerships and Collaborations: The project has successfully established strategic partnerships with key industry players. These collaborations have not only expanded the platform’s reach but also enriched its capabilities through shared expertise and resources.
Improvements in Operational Efficiency: Internally, the platform has enabled significant improvements in operational efficiency for client organizations, leading to cost savings and increased productivity. This efficiency is a testament to the platform’s effective integration and operational support.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Agile Work Principles:
Strong adherence to agile principles and guidelines.
High-level strategic exchanges on a regular basis.
Close operational collaboration to ensure alignment with project goals.
Timely Delivery:
Consistent delivery of items on time.
Ability to adapt to quick priority shifts throughout the project lifecycle.
Continuous Development:
Processes adapted as project size and complexity increased.
Regular feedback loops established for ongoing adjustments and improvements.
Responsiveness:
Open lines of communication maintained.
Proactive approach to addressing and solving issues.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
What did you find most impressive or unique about this company?
One of the most impressive aspects of this company is its multi-cultural setup, with locations in Germany and abroad. This diverse environment helps the company understand and serve a wide range of markets effectively.
Additionally, the company excels in its ability to flexibly upscale project resources. This means they can quickly adjust to meet the needs of different projects, ensuring that client demands are met efficiently.
The team’s strong skills are another highlight, reflecting the company’s dedication to maintaining high standards and encouraging continuous learning.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
Expectation Management: Clearly defining the roles and skills of the L-One team versus our team can help align expectations and improve project outcomes.
Faster Onboarding: Streamlining the onboarding process for new team members will facilitate quicker integration and productivity.
Cross-Cultural Understanding: Providing resources for managing cross-cultural standards can improve communication and collaboration across diverse teams.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
IT Strategy Consulting & Managed Services for ICT Systems Co
IT Managed ServicesIT Strategy Consulting
Other app platformIT Assessment
Confidential
Nov. 2024 - Jan. 2025
5.0
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
"They excel in providing tailored solutions that specifically address their clients' unique needs."
Jan 24, 2025
Support Engineer VoIP, veovia sales GmbH
Justin Greil
Verified
Telecommunications
Berlin, Germany
11-50 Employees
Online Review
Verified
L-One Systems GmbH provided IT consulting services for an ICT systems company. The team designed solutions, provided VoIP phones, established a network infrastructure, and conducted training sessions.
L-One Systems GmbH's work increased productivity and cost savings and improved communication and performance metrics. The team adhered to timelines, demonstrated flexibility, swiftly addressed issues, and communicated transparently. Their holistic approach and proactiveness impressed the client.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Support Engineer VoIP of veovia sales GmbH
Describe what your company does in a single sentence.
As an ICT system house, veovia offers medium-sized customers solutions for efficient working from home by linking corporate telephony with existing CRM and ERP systems, optimizing processes, assisting with the selection of conference systems and providing support as a service and support partner.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Technical Concept for a cloud-based phone client
SOLUTION
How did you find L-One Systems GmbH?
Online Search
Why did you select L-One Systems GmbH over others?
Great culture fit
Good value for cost
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Comprehensive Analysis: Conduct a thorough analysis of the current IT and communication systems to identify specific needs. Solution Development: Design tailored concepts for the integration of modern telephony systems with existing CRM and ERP solutions to ensure efficient workflows. Hardware Implementation: Provide and install the necessary hardware, including VoIP phones, conference systems, and other communication devices. Network Infrastructure: Establish and optimize data lines and mobile contracts to ensure reliable internet and phone connectivity. Training and Support: Conduct training sessions for employees on the use of new systems, along with ongoing support and maintenance of the implemented solutions. Funding Advisory: Assist in identifying funding opportunities for digitization projects and provide consultation on relevant applications.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Increased Productivity: A measurable increase in employee productivity, often quantified by metrics such as the number of tasks completed or reduced completion times for specific projects due to improved workflows. Cost Savings: Reduction in operational costs, including lower phone bills or decreased downtime, resulting from the implementation of efficient communication systems and processes. Improved Communication: Enhanced communication metrics, such as reduced response times for internal and external communications, increased collaboration, and higher satisfaction ratings from employees regarding communication tools. User Adoption Rates: High percentage of employee adoption of new systems, indicated by usage statistics and frequency of use of new communication tools. Training Assessment Results: Positive feedback and improved proficiency scores from employee training assessments that demonstrate a successful understanding of the new technologies. Support Ticket Reduction: A decrease in the number of support tickets or issues reported related to communication systems, indicating increased user confidence and system reliability. Network Performance Metrics: Improved network performance indicators, such as increased bandwidth and reduced latency in internet and phone connections, demonstrating enhanced infrastructure. Funding Acquisition: Successful acquisition of funding or grants for digitization projects, reflecting the viability and alignment of the project with broader business goals. These outcomes not only illustrate the project’s success but also provide a clear basis for further improvements and initiatives.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Timely Delivery: The project milestones and deliverables were generally met within the established timelines. Regular status updates ensured transparency and allowed for proactive adjustments when necessary. Agile Response: The team demonstrated flexibility in responding to changing requirements and unexpected challenges. They held regular check-in meetings to gather feedback and assess needs, ensuring the project remained aligned with client expectations. Resource Allocation: Appropriate resources were allocated to various tasks, enhancing efficiency. Project managers maintained oversight, allowing for the quick identification and resolution of any potential delays. Collaboration and Communication: There was an open line of communication between the project team and stakeholders, facilitating collaboration and quick decision-making. Stakeholder input was actively sought and incorporated into the project, resulting in solutions that closely matched client needs. Issue Resolution: Any issues that arose during the project were addressed promptly. The team efficiently identified root causes and implemented corrective actions, minimizing disruptions to the project timeline.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Customized Solutions: They excel in providing tailored solutions that specifically address their clients' unique needs, ensuring that each implementation is optimized for the specific business context and goals. Holistic Approach: Their comprehensive service offerings, from initial analysis to ongoing support, create a seamless experience for clients. By covering all aspects of IT and communication—from hardware to training—they ensure a fully integrated solution. Strong Client Relationships: The emphasis on building long-term partnerships with clients, illustrated by their proactive communication and commitment to understanding client needs, fosters trust and loyalty.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
We could have met earlier :-)
RATINGS
5.0
Quality
4.5
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
AWS Migration, AI & Feature Development for SaaS Company
AI DevelopmentCloud Consulting & SICustom Software Development
AWS Migrations
Confidential
Sep. - Dec. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their organized and efficient approach created a seamless collaboration."
Jan 13, 2025
Co-Founder, aicorite GmbH
Martin Ahlefelder
Verified
Other industries
Duesseldorf, Germany
1-10 Employees
Online Review
Verified
L-One Systems GmbH provided software development services for a SaaS company. The team was responsible for feature development, UI/UX design, AI integration, and AWS migration of the client's platform.
Thanks to L-One Systems GmbH's efforts, the client saw new features in their platform, improved accuracy in pricing recommendations through AI models, and growth in active users. The team communicated clearly, provided regular updates, and was responsive to needs throughout the engagement.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Co-Founder of aicorite GmbH
Describe what your company does in a single sentence.
Aicorite® is a SAAS solution that helps businesses implement and optimize data-driven pricing strategies, enabling quicker price changes, market analysis, and preparation for impactful pricing decisions.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Feature development
Refactoring
AWS migration
SOLUTION
How did you find L-One Systems GmbH?
Referral
Why did you select L-One Systems GmbH over others?
High ratings
Great culture fit
Company values aligned
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
At aicorite®, the collaboration with L-One focuses on feature development, including user-friendly interfaces and advanced functionalities; AI integration to enhance data-driven pricing strategies and predictive analytics; and server integration to ensure seamless, scalable, and secure operations for the SAAS platform.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Feature Rollout: Successful development and deployment of new platform features, enhancing user functionality and engagement.
AI Integration: Improved accuracy and efficiency in pricing recommendations and market analysis through advanced AI models.
Server Performance: Increased system scalability and stability, resulting in faster response times and reduced downtime.
User Adoption: Growth in user activity metrics, including login frequency and feature utilization, indicating increased platform value.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
L-One's project management was exemplary, led by a great project leader who ensured clear communication and consistent progress through weekly jour fixes. All deliverables were completed on time, meeting or exceeding expectations. They were highly responsive to needs, proactively addressing feedback, and adapting solutions to align with aicorite®'s strategic goals. Their organized and efficient approach created a seamless collaboration.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
What did you find most impressive or unique about this company?
What stood out most about L-One was their great team, combining exceptional technical skills with a collaborative approach. Their ability to deliver fast and efficient implementation while maintaining high-quality standards was particularly impressive, showcasing their commitment to excellence and adaptability.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
Nothing
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Web Development for Software Company
Custom Software DevelopmentMicroservices Architecture ServicesWeb Development
AngularJavaScriptPython
Confidential
June - Oct. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They've delivered quality at and above the promised level while sticking to the allocated budget, time, and money wise!"
Nov 19, 2024
Founder & Managing Director, space22 GmbH
Jakob Holderbaum
Verified
Other industries
Trier, Germany
11-50 Employees
Online Review
Verified
L-One Systems GmbH works with a software company to develop a web app for an end client. The goal is to boost the development knowledge of the client's team and co-deliver the project.
Thanks to L-One Systems GmbH's support, the client enjoys a 20% reduction in costs and has successfully delivered the project to the end client. The team proactively communicates and addresses issues, and their ability to deliver innovative work on time and within budget makes them stand out.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Founder & Managing Director of space22 GmbH
Describe what your company does in a single sentence.
We build software products and talk about it.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Support in developing a custom software solution
Cost Reduction
SOLUTION
How did you find L-One Systems GmbH?
Referral
Why did you select L-One Systems GmbH over others?
Great culture fit
Referred to me
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Due to specific domain and tech requirements, we were struggling with the development of a web application for one of our clients. After consultation with the client, we decided to get external support, which we hired from L-One.
The scope was very specific: boost the knowledge of our team and thus enable us to co-deliver the project to the client's satisfaction. We were also interested in their experience around cloud and microservices to minimise running costs of the software in the long term.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
First and foremost, we delivered what we promised to our client. In considerable parts due to the remarkable know-how from the L-One Consultants.
Secondly, we could reduce our running cost by nearly 20%, which is a massive gain eventually.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Every team-member from L-One was very proactive in their communication. Progress and unexpected obstacles (which are unavoidable in any software project) were made transparent, proactively and with workarounds already in hand.
We felt we were being heard and taken seriously throughout the entire project.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
They've delivered quality at and above the promised level while sticking to the allocated budget, time, and money wise! This was possible because of good communication about obstacles and a clear iterative approach with small increments.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
No :)
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for AI Text & Image Generation Platform
Application TestingCustom Software DevelopmentOther Application Development
LaravelPHP
Confidential
Dec. 2022 - June 2023
5.0
Quality
5.0
Schedule
4.5
Cost
4.5
Willing to Refer
5.0
"We want to express our gratitude to the entire team at LOne-Systems for their exceptional contributions."
Jun 20, 2023
CTO, neuroflash GmbH
Tobias Dobberphul
Verified
Other industries
Germany
11-50 Employees
Online Review
Verified
L-One Systems GmbH provided PHP and Laravel development services for an AI text and image generation platform. The team was responsible for database design, user implementation, and cybersecurity services.
L-One Systems GmbH has demonstrated high professionalism, technical competence, and dedication to the project’s success. The outcomes they delivered have met and exceeded expectations, and internal stakeholders were impressed with the vendor's collaborative and value-driven approach.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CTO of neuroflash GmbH
Describe what your company does in a single sentence.
Your favorite AI text and image generator
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Enhancing Backend Architecture and Code
Testing API and Backend
SOLUTION
How did you find L-One Systems GmbH?
Online Search
Why did you select L-One Systems GmbH over others?
Close to my geographic location
Good value for cost
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
This document outlines the scope of work for the contract between neuroflash and LOne-Systems. LOne-Systems has been contracted to provide PHP and Laravel development services, including the following tasks and functionalities:
Logging with Segment: LOne-Systems will develop a logging system allowing for granular data segmentation. This feature will enable efficient tracking, analysis, and troubleshooting of system events and errors.
Pricing over Stripe: LOne-Systems will integrate the Stripe payment gateway into the system, enabling seamless and secure online payment processing. The pricing module will be designed to handle various pricing models and support multiple currencies if required.
Software Architecture with PlantUML: LOne-Systems will create a comprehensive software architecture using PlantUML. This will involve designing and documenting the system's structure, components, interactions, and dependencies to ensure clarity and maintainability.
API Design-First Approach: LOne-Systems will follow an API design-first approach, ensuring that the system's APIs are well-defined and robust. This will involve designing the APIs, documenting them using industry-standard tools like OpenAPI or Swagger, and implementing them accordingly.
In addition to the above core tasks, LOne-Systems will also undertake the following responsibilities:
Database design and implementation
User authentication and authorization mechanisms
Backend development using PHP and Laravel Integration with third-party APIs and services as required
Implementation of data validation and security measures
Deployment and hosting support, if specified in the contract
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Logging over Segment Pricing over Stripe Software Architecture with PlantUML API Design-First Approach Additional Functionalities
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Overall, LOne-Systems has demonstrated a high level of professionalism, technical competence, and dedication to our project's success. Their expertise in PHP, Laravel, and related technologies has been evident throughout their work. The outcomes they have delivered have not only met but exceeded our requirements and have positively impacted the performance, functionality, and user experience of our system.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
What did you find most impressive or unique about this company?
We want to express our gratitude to the entire team at LOne-Systems for their exceptional contributions. Their collaboration, effective communication, and willingness to address any challenges that arose during the project have made them valuable partners.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
There was nothing they needed to improve on.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
"We highly recommend LOne-Systems for their outstanding work and look forward to any future opportunities to collaborate again.
API Development for Wholesale Solutions Startup
API Development
OPEN APIPartner APIREST APIWebhook API
Less than $10,000
Jan. - Mar. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They had a very sympathetic approach that I came to appreciate."
Jul 6, 2025
CEO, Wholesale Solutions Startup
Markus Heinemann
Retail
Berlin, Germany
1-10 Employees
Online Review
L-One Systems GmbH developed interfaces to transfer data from a supplier's ERP system to the client's ERP system, including item names, descriptions, and prices.
L-One Systems GmbH delivered a completed interface that allows the client to view updated article data in their ERP system. The team was solution-oriented and approachable, and they corrected any minor errors without hesitation.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of the company
Describe what your company does in a single sentence.
We are a startup that specializes in the wholesale of industrial products.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish? Develop interfaces to suppliers
SOLUTION
How did you find L-One Systems GmbH?
Online Search
Why did you select L-One Systems GmbH over others?
Pricing fit our budget
Great culture fit
How many teammates from L-One Systems GmbH were assigned to this project?
1 Employee
Describe the scope of work in detail. Please include a summary of key deliverables.
The project involved transferring data from the supplier's ERP system to our ERP system. Specifically, this involved product data such as item name, description, price and so on. Furthermore, a solution was found to transfer the order from our ERP system directly to the supplier.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
A completed interface with which hourly updated article data of the supplier can now be viewed in the ERP system. More precisely, current article data such as description and other attributes and, most importantly, prices and stock levels. In addition, the direct ordering of an article from our ERP system.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Even if the project is completed and minor errors are discovered in practice, these will be corrected without hesitation.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
What did you find most impressive or unique about this company?
That the founder Lionel is very approachable and solution-oriented. They had a very sympathetic approach that I came to appreciate.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
It takes longer for programmers to familiarize themselves with topics for which they have no experience. This means that it is necessary to clarify in advance whether reference experience exists for certain topics. If not, then you have to be aware that the development time will be longer, as the people will also have to familiarize themselves.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Development for NLP Services Provider
Custom Software Development
Azure Platform
Confidential
Jan. - Mar. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They delivered everything on time."
May 21, 2024
CEO, Eloquest GmbH
Sarah Holschneider
Verified
Information technology
Darmstadt, Germany
1-10 Employees
Online Review
Verified
L-One Systems GmbH was hired by an NLP service provider for their custom software development services. The team was responsible for frontend development, Microsoft Word parsing, and Azure consultation.
L-One Systems GmbH completed the project on time, much to the client's delight. The team was highly responsive from a project management standpoint, and internal stakeholders were impressed with the service provider's technical expertise and commitment.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of Eloquest GmbH
Describe what your company does in a single sentence.
We are an NLP service provider.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Front end for assistance system
Parsing Word documents
Azure expertise
SOLUTION
How did you find L-One Systems GmbH?
Referral
Why did you select L-One Systems GmbH over others?
Great culture fit
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The L-One team worked closely together with us to ensure the smooth development of an assistance system.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Trello and MOSCOW board for tracking the process.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
They delivered everything on time. The project management was on our side.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Expertise and commitment.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
"They have a very professional project management approach."
Jan 20, 2024
Co-CEO, Neuroflash GmbH
Henrik Roth
Verified
Other industries
Hamburg, Germany
11-50 Employees
Online Review
Verified
L-One Systems GmbH has helped an AI content tools company find DevOps resources. The resources work on the client’s backend needs and are composed of a Scrum master and a QA tester.
Thanks to L-One Systems GmbH’s help, the client has achieved faster software development speed. The resources have been culturally fit for the client, allowing them to facilitate an agile development process. The team has been highly professional and committed to delivering great services.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Co-CEO of neuroflash GmbH
Describe what your company does in a single sentence.
We help marketing teams to generate high performing content with our AI content suite.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire L-One Systems GmbH to accomplish?
Find talent for our DevOps team
SOLUTION
How did you find L-One Systems GmbH?
Referral
Why did you select L-One Systems GmbH over others?
Close to my geographic location
Great culture fit
Good value for cost
Company values aligned
How many teammates from L-One Systems GmbH were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Dedicated DevOps team from backend, scrum master to QA tester.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Faster development speed of our software.
Great cultural fit and leadership for our backend and general agile development process.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
They have a very professional project management approach and a partnership I can recommend.
What was your primary form of communication with L-One Systems GmbH?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Such a dedicated and commited talent- great service and partnership with mutual interests.
Are there any areas for improvement or something L-One Systems GmbH could have done differently?
No, all good!
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
Showing 1-10 of
11 Reviews
Our Story
Our team combines German business understanding with strong engineering expertise from our development hub in Damascus. We work as one close-knit, long-term team across locations, with clear processes, deep domain knowledge and a strong sense of ownership. From business analysis and solution design to development and delivery, we focus on building high-quality software that creates measurable business value.
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