Senior .NET Developer

Mellon Technologies, the parent company of Mellon 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 a Senior .NET Developer (with Architecture & Team Leadership Skills)
Position Summary
We are looking for a highly skilled Senior .NET Developer who combines strong hands-on development abilities with advanced competencies in analysis, 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 using C# 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
Requirements
5+ years of professional experience in backend development with Microsoft 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 with Razor, 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
Benefits
Opportunities to evolve into an international hyper-technological working environment
Multicultural and excellent working environment
Leading-edge technology
Continuous training
#LI-Hybrid

Work arrangement
No