# Sirius Software

> Web, Mobile & Custom Software Development Company

- Canonical listing: https://agencysource.com/agencies/sirius-software
- Location: Sofia, Bulgaria
- Categories: [Web Development](https://agencysource.com/categories/web-development), [Custom Software Development](https://agencysource.com/categories/custom-software-development), [AI Agents & Automation](https://agencysource.com/categories/ai-agents-automation), [AI & LLM Development](https://agencysource.com/categories/ai-development), [Ecommerce Development](https://agencysource.com/categories/ecommerce-development), [Web Design](https://agencysource.com/categories/web-design)
- Services: Web Development, Custom Software Development, Web Design, AI Agents, AI Development, E-Commerce Development, ERP Consulting and SI, Mobile App Development
- Industries: Financial services, eCommerce, Business services, GPS, Navigation & GIS, Gaming, Real estate, Supply Chain, Logistics, and Transport
- Team size: 10 - 49
- Hourly rate: $25 - $49 / hr
- Minimum project: $5,000+
- Founded: 2011
- Website: https://siriussoftware.bg
- Listing: Not yet claimed
- Agency Source rating: no Agency Source reviews yet

## About

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

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