Backend Software Developer

12 hours ago

Bucharest, Bucureşti, Romania eSolutions Full time €40,000 - €80,000 per year

Full-time | Remote or Hybrid | Romanian residents only | Long-term collaboration | Employment contract only

About you:

You're a seasoned backend software developer with a passion for clean, maintainable code and scalable architectures. You've been working with C# and .NET for at least 4–5 years, and you feel confident designing and developing modern backend solutions. You enjoy working in a collaborative environment, communicate clearly, and are always looking for ways to improve and learn. You're looking for stability and long-term impact in your next role.

Essential Skills

  • 4–5+ years professional experience with C#, .NET Core / .NET (preferably .NET 7+; familiarity with .NET 9 features a plus)
  • Strong ASP.NET Core Web API design (validation, error handling, performance considerations)
  • Deep proficiency in Entity Framework Core: query shaping, change tracking strategies, batching, concurrency, performance tuning
  • Advanced LINQ and asynchronous programming (async streams, cancellation tokens, await using, IDbContextFactory usage)
  • Hands-on experience with at least one of: Oracle (legacy integration), PostgreSQL, ElasticSearch, Cosmos DB
  • Solid understanding of object-oriented and clean architectural patterns (layered, DDD-inspired boundaries)
  • Experience creating and maintaining backend integration tests
  • Strong written and verbal English
  • Effective communication inside cross-functional teams
  • Interest in a long-term engagement

Nice to have:

  • Experience with Azure Services (Service Bus, Storage, Containers)
  • Familiarity with Event-driven/microservice architecture
  • Experience with AI (Copilot)
  • Basic Kubernetes & container lifecycle understanding
  • Developer certifications (e.g., Microsoft Certified Azure Developer) are a strong plus
  • Participation in the Microsoft Aspire program

About eSolutions:

We take pride in being a technologically advanced organisation dedicated to developing integrated, complex, and secure solutions, designed to elevate the underlying business processes of the software we create. We develop and implement bespoke solutions for key industries, using microservices architectures for scalable and stable apps. Committed to employing the latest development methodologies, we consistently produce high-quality, reliable code - a testimony to our 24 years of proven success. With a client portfolio including companies such as Carrefour, REWE Digital, Regina Maria, Deutsche Telekom, METRO.digital Romania, STS, or WHO, we consistently rise to meet industry challenges and equip our partners with a decisive competitive advantage in their respective markets.

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