.NET Developer

About Sirma

Established in 1992, Sirma is one of the leading IT companies in Bulgaria. Since 2015, the company has been listed on the Bulgarian Stock Exchange.

Sirma specializes in software development across multiple industries, including finance, insurance, healthcare, transportation, logistics, hospitality, retail, and e-government. With a team of 800+ professionals, the company delivers cutting-edge software solutions tailored to address the specific business needs and challenges of our clients. Our projects range from short engagements to multi-year collaborations on turnkey products.

As we believe that our employees are our greatest asset, we provide them with a collaborative environment and full support for their career and personal growth.

About the role

We are seeking a .NET Developer to join our dynamic team. The ideal candidate will possess a good understanding of programming principles, database management, data structures and algorithms. This role demands a comprehensive skill set that spans multiple programming languages and frameworks, with the ability to work on complex problems in both frontend and backend development.

Your responsibilities

• Understand business requirements and feature specifications
• Contribute to architecture discussions, tech specifications and project estimation
• Mentor and manage a team of less experienced software engineers, providing guidance through code reviews and fostering an environment of continuous learning and improvement
• Work independently to solve problems of different complexity with focus on priorities and business value
• Design and implement software solutions across multiple platforms and frameworks, ensuring robust, scalable, and secure applications
• Communicate with the team effectively during the entire development life cycle
• Stay updated of technological advancements and continuously update your skills

Role's requirements

• 3+ years of hands-on experience in .NET software development
• Solid expertise in C#, ASP.NET Core/Web API, Entity Framework
• Experience with relational databases (e.g. MS SQL, Oracle, PostgreSQL, etc.)
• Strong understanding of data structures, algorithms, and software design pattern
• A proactive mindset and ability to work independently
• Fluent spoken and written English
• Bachelor’s degree in Computer Science or a related degree

Why Join Sirma?

• Learn from the Best

Work alongside some of the brightest minds in the industry, collaborate with international experts, and be part of a culture where knowledge sharing is part of everyday life.

• Build What Matters

Take on challenging projects, solve real business problems, and work with cutting-edge technologies that drive innovation across industries.

• Flexibility That Works for You

Start your day between 8:00 and 10:00, depending on your team’s schedule. We trust people to organize their time in a way that works for them and their team.

• Internal Training Academy

Through Sirma Academy, we offer practical, hands-on training programs focused on real-world software engineering skills, modern technologies, and best practices.

• One Company, Multiple Locations

Whether you prefer a change of scenery or need flexibility, you can work from any Sirma office and stay connected with colleagues across the Group.

• We Care About Your Wellbeing

Additional health and dental insurance, a Multisport card, and dedicated relaxation spaces help you stay healthy, active, and energized.

• Supporting Students' Success

Balancing education and work isn't always easy. That's why we provide additional paid vacation days for students.

• Work Hard. Celebrate Together

From team buildings and company parties to sports events and social initiatives, we create opportunities to connect, have fun, and make lasting memories.

• Make an Impact Beyond Work

Join charity campaigns and community initiatives that allow us to grow not only as professionals but also as responsible global citizens.

• The Little Things Matter

Fresh fruit in the office, gaming and relaxation areas, a generous referral bonus program, and comfortable office spaces designed for both focus and connection help make every day at Sirma even better.

Life at Sirma

At Sirma, you'll find more than a job. You'll join a community of innovators, problem-solvers, and technology enthusiasts who are passionate about learning, sharing knowledge, and building the future together. If you're looking for a place where your ideas matter and your growth is a priority, Sirma is the place for you.

Apply now!

We are waiting for your CV!

There’s a lot going on at Sirma!

We're looking forward to meeting our next colleague. :)

We will contact only the candidates selected for further consideration. Confidentiality is guaranteed. We thank all candidates for applying.