Founded in 2011, Sirius Software is a custom software development company helping businesses design, build, modernize, and scale complex digital products and business systems.
We work with established companies and growing organizations across industries such as eCommerce, fintech, healthcare, real estate, entertainment, and professional services. Our strongest expertise is in projects where standard off-the-shelf solutions are not enough - complex business processes, custom platforms, system integrations, legacy modernization, workflow automation, and long-term product development.
Our multidisciplinary team combines software engineers, solution architects, QA specialists, DevOps engineers, project managers, and UI/UX designers. This allows us to cover the entire software development lifecycle - from discovery, business analysis, and solution architecture to design, development, testing, deployment, maintenance, and continuous improvement.
Our core capabilities include:
Custom Software Development
Enterprise Web Platforms
eCommerce Solutions
AI Integrations & Business Automation
API & Third-Party System Integrations
Legacy System Modernization & Migration
Web & Mobile Application Development
UI/UX Design
Quality Assurance
DevOps & Cloud Infrastructure
IT Consulting
We believe successful software projects require more than strong technical execution. They require a deep understanding of the client's business, transparent communication, accountability, and the ability to make sound long-term technology decisions.
Security and reliability are also integral to the way we work. Sirius Software operates under an ISO/IEC 27001:2022 certified information security management system, supporting structured processes and responsible handling of information throughout the software lifecycle.
Our goal is not simply to deliver software, but to become a long-term technology partner to our clients - turning complex business challenges into reliable and maintainablе solutions
Web Development for Real Estate Investment Company
UX/UI DesignWeb DesignWeb Development
JavaScript
Confidential
June 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They do the job very quickly and efficiently."
Aug 26, 2026
CEO, Flipping Property
Nikolay Stoichkov
Real estate
Sofia, Bulgaria
Online Review
Sirius Software developed a website for a real estate investment company. The team created a conversion-focused platform that clearly presents the client's residential projects and key advantages.
Sirius Software successfully launched a fully responsive website with clear property presentation, dedicated inquiry capture, and brochure download. The team consistently met deadlines, communicated effectively, and quickly addressed any issues or feedback.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of Flipping Property
Describe what your company does in a single sentence.
Investment company in residential building.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Sirius Software to accomplish?
Create a premium, conversion-focused website for German Terrace that presents the residential project clearly, communicates its key advantages, and generates qualified enquiries from potential buyers for the three available homes.
Create internal CRM system to manage inquires and speed up feedback process
SOLUTION
How did you find Sirius Software?
Referral
Why did you select Sirius Software over others?
High ratings
Referred to me
How many teammates from Sirius Software were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
web-based platform for contacts with buyers of the housing project
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Successful launch of a fully responsive website with clear property presentation, dedicated enquiry capture and brochure download. The platform supports lead generation by making pricing, specifications, location and project status easily accessible to potential buyers.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The team consistently met deadlines, communicated effectively, and quickly addressed any issues or feedback.
What was your primary form of communication with Sirius Software?
In-Person Meeting
What did you find most impressive or unique about this company?
Highlight the distinguishing strengths or qualities that set this company apart from others.
Are there any areas for improvement or something Sirius Software could have done differently?
They do the job very quickly and efficiently.
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 Design for Financial Services Company
Business Valuation ServicesWeb Design
Asset Valuations
Less than $10,000
August 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Their team was proactive, flexible, and always focused on finding practical solutions to our needs."
Aug 26, 2026
Manager, Happy Credit LTD
Lazar Iliev
Banks
Sofia, Bulgaria
1-10 Employees
Online Review
Sirius Software redesigned and modernized a website for a financial services company. They also developed a digital platform and integrated third-party services. The team provides ongoing support.
Sirius Software successfully launched the client's platform, transforming their business concept into a fully functional digital solution. The team demonstrated excellent project management, was well-organized, responsive, and maintained clear communication. They delivered milestones on time.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Manager of Happy Credit LTD
Describe what your company does in a single sentence.
Fast loans
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Sirius Software to accomplish?
We hired Sirius Software to redesign and modernize our website and to develop the Happy Credit platform. Our main objectives were to improve the overall user experience, create a reliable and scalable digital platform, optimize performance, and ensure that the technology could support our business growth. We were looking for a long-term technology partner who could understand our business needs and turn them into effective, user-friendly digital solutions.
SOLUTION
How did you find Sirius Software?
Online Search
Why did you select Sirius Software over others?
High ratings
How many teammates from Sirius Software 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 included the complete redesign and modernization of our website, as well as the development of the Happy Credit digital platform. Sirius Software was responsible for the full technical implementation, from planning and architecture to development, testing, deployment, and ongoing support. Key deliverables included a modern and user-friendly website, a reliable and scalable platform tailored to our business processes, integration of essential functionalities and third-party services, performance optimization, and improvements to the overall user experience. The team also provided continuous technical support and implemented improvements based on our evolving business requirements. The final result was a stable, efficient, and scalable digital solution that supports our day-to-day operations and future growth.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
One of the most significant outcomes of the project was the successful development and launch of our Shop Credit platform. Sirius Software transformed our business concept into a fully functional digital solution that allows us to manage and offer our credit services more efficiently. The platform streamlined key processes, reduced manual work, improved the customer journey, and gave us a scalable foundation for working with our partners and expanding the service. Most importantly, Shop Credit became an important part of our digital infrastructure and enabled us to grow this area of our business more effectively.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Sirius Software demonstrated excellent project management throughout the entire process. The team was well-organized, responsive, and maintained clear communication at every stage of the project. They delivered the agreed milestones on time and were flexible whenever our requirements evolved. What we particularly appreciated was their ability to understand our business needs and quickly translate them into practical technical solutions. Whenever we had questions, requested changes, or needed additional functionality, their team responded promptly and professionally. Overall, the collaboration was smooth, transparent, and reliable, which gave us confidence throughout the development of the Shop Credit platform.
What was your primary form of communication with Sirius Software?
In-Person Meeting
What did you find most impressive or unique about this company?
What impressed us most about Sirius Software was their ability to understand our business, not just the technical requirements. They approached the Shop Credit platform as a long-term business solution rather than simply a software development project. Their team was proactive, flexible, and always focused on finding practical solutions to our needs. We especially appreciated their responsiveness, technical expertise, and ability to adapt quickly when requirements changed. This combination of strong technical skills and a genuine understanding of our business made Sirius Software stand out as a reliable technology partner.
Are there any areas for improvement or something Sirius Software could have done differently?
Overall, we are very satisfied with our collaboration with Sirius Software and the results they delivered. We did not experience any significant issues during the project. As with any complex software development project, there is always room to further improve communication and planning as requirements evolve, but their team was responsive and handled changes effectively. We would be happy to work with them again on future projects.
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
Showing 1-2 of
2 Reviews
Our Story
Our team is built around one shared goal: creating software that delivers real business value. We combine strong technical expertise with curiosity, ownership, and a practical mindset. We believe in open communication, long-term partnerships, and taking responsibility for the outcomes we create. Our mission is simple - to turn complex business challenges into reliable, scalable digital solutions.
What Sets Us Apart
Senior, Multidisciplinary Team
Our team brings together software engineers, architects, QA specialists, DevOps, project managers, and designers. This mix allows us to approach projects from both a technical and business perspective.
Ownership and Accountability
We encourage people to take responsibility for outcomes, not just assigned tasks. Our team works closely with clients, asks questions, challenges assumptions, and stays involved from initial discovery through long-term development.
Long-Term, Collaborative Mindset
We value clear communication, knowledge sharing, and long-term relationships. Many of our projects evolve over years, so we focus on building teams and solutions that remain reliable, maintainable, and easy to develop further.
If you’re not seeing exactly what you need here, send this company a custom message.
You can talk about your project needs, price, and timeline to get started on your project.
Sign in to see which brands trust Sirius Software.
Get connected to see updates from Sirius Software like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.
