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Randstad Logo Randstad · IT - Software Development

Senior .NET Developer

Greece, Athens · Job Posted June 09, 2026
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Job Description

Ready to take the next big step in your tech career? Join a leading global multinational group and work on diverse, large-scale enterprise projects that define the digital future. We are looking for a Senior .NET Software Engineer with a growth mindset to join a high-caliber team of technology experts.

Job Responsibility

  • Design, build, and implement highly-performant, customized, and responsive web applications and APIs in C# and .NET Core
  • Contribute to the technical architecture and systems design, while researching and introducing new tools and technologies
  • Write clean, maintainable, and efficient code for both back-end and core system functionalities, ensuring high security and data protection standards
  • Collaborate closely with cross-functional teams and clients to understand complex business requirements and propose high-level technical solutions
  • Maintain and optimize performant databases, ensuring the reliability of large-scale data systems, and actively lead team Code Reviews

Requirements

  • 5+ years of professional hands-on experience in C# .NET development
  • University and/or Postgraduate Degree in Computer Science, IT, or a related field
  • Deep familiarity with modern frameworks (C# .NET 6.0+, WebAPI, Entity Framework, and LINQ)
  • Strong understanding of software architecture principles, including Microservices, Clean Architecture, and Design Patterns
  • Experience or familiarity with cloud environments and message brokers is highly appreciated
  • A true team player with excellent problem-solving skills, mentoring capabilities, and a collaborative spirit
  • Fluency in English (both written and verbal)
  • Military obligations fulfilled, if applicable
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