Senior .NET Developer

Mellon Technologies, the parent company ofMellon Group of Companies, was founded in 1994 in Athens. Our offering consists of specialized technology solutions, contact centre and business process outsourcing services, to serve the increasing needs of financial institutions and organizations with strong consumer transactions business, such as Retail Banks, Public Utilities, Telecommunications Providers and large Private Companies.

Mellon Technologies SA, seeks to hire aSenior .NET Developer (with Architecture & Team Leadership Skills)

Position Summary
We are looking for a highly skilledSenior .NET Developer who combines strong hands-on development abilities with advanced competencies inanalysis, solution design, and technical leadership. The ideal candidate will play a key role in guiding the development team, ensuring high-quality deliverables, and communicating effectively with stakeholders and clients.

Key Responsibilities

• Lead the design and development of backend solutions usingC# and .NET technologies
• Conduct system analysis, propose architectural improvements, and ensure best practices
• Collaborate with product owners, business analysts, and clients to understand requirements and translate them into technical solutions
• Mentor and guide junior developers, review code, and promote software development standards
• Participate in planning, estimation, and technical decision-making processes
• Ensure system performance, scalability, and reliability through proper design and implementation

• 5+ years of professional experience inbackend development withMicrosoft technologies (C#, .NET / .NET Core)
• Strong understanding of software architecture, design patterns, and clean coding principles
• Experience with RESTful APIs, Entity Framework, and SQL databases
• Ability to analyze complex requirements and translate them into technical specifications
• Excellent communication skills and ability to interact with clients and internal stakeholders
• Proven experience in leading or mentoring development teams
  

Nice to Have

• Full-stack experience withRazor,Blazor, or other Microsoft web technologies
• Experience with cloud platforms (Azure preferred)
• Familiarity with DevOps practices and CI/CD pipelines
• Knowledge of frontend frameworks (e.g., JavaScript, TypeScript) is a plus
  

Soft Skills

• Strong problem-solving mindset and ownership attitude
• Ability to work effectively both independently and in a team environment
• Proactiveness, attention to detail, and a drive for continuous improvement

• Opportunities to evolve into an international hyper-technological working environment
• Multicultural and excellent working environment
• Leading-edge technology
• Continuous training

#LI-Hybrid