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Senior .NET Developer

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Company
Sirma Group
Location
Sofia, Remote
Type
Full-Time

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 highly skilled and experienced Senior .NET Developer to join our dynamic team. The ideal candidate will possess a deep understanding of programming principles, database management, infrastructure, and security design.

Your responsibilities
• Develop and maintain scalable .NET and C# solutions 
• Contribute to architecture discussions, tech specifications and project estimation
• Ensure reliability with Agile, TDD, and best practices 
• Optimize and maintain SQL/NoSQL databases 
• Work independently to solve problems of different complexity with a focus on priorities and business value
• Collaboration with team members across different locations 

Role's requirements
• 4+ years of experience in C# development
• Experience with Web API, ASP.NET, REST, RPC, GraphQL 
• Hands-on experience with SQL and/or NoSQL (MongoDB preferred)
• Familiarity with observability tools (AppInsights, DataDog, OpenTelemetry) 
• Proactive, self-driven, and improvement-focused character
• Bachelor’s degree in Computer Science or a related field 
• Excellent verbal and written English

Advantages
• Experience with frontend frameworks such as Angular/React
• Experience with Cloud Providers - SaaS Development or IoT Cloud platforms
• Cloud development skills (Azure preferred; AWS/GCP considered)
• Knowledge of Microservices, Serverless and/ IoT paradigms

What we offer
• Personal career path
• Individual or team professional training
• Flexible working time
• Cooperation with top professionals around the globe
• Regular performance assessment
• Additional health and dental insurance
• Additional paid vacation days for students
• Regular team buildings and office parties
• Private parking zone
• Multisport card
• Game and relax zone

Why Sirma should be your choice
• Knowledge sharing
• Interesting case studies
• Referral bonus scheme
• Working with cutting-edge technologies
• Innovative and dynamic projects
• Sport events
• Charity campaigns
• Fruits at the office
• Opportunity to work from any Sirma office
• Large terrace with great view

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.

Who we are?

  • Sustainable company
  • Innovative in ideas
  • Reliable in solutions
  • Modern in approach
  • Authentic in culture

What we offer?

  • Social benefits
  • Opportunity for career development
  • Latest technologies to work with
  • Unique Work Atmosphere
  • Travel around the clock
  • International Experience
  • Opportunity for flexible working hours
  • New ideas realization
  • Sport events and team buildings
Contact
Email
careers@sirma.com
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