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Mellon Group of Companies

Senior .NET Developer

Athens , Greece
full-time

AI overview

Contribute to innovative backend solutions using C# and .NET technologies while leading a development team and ensuring system performance and reliability.

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

Mellon Group of Companies

Established in 1994, Mellon is a multinational group of companies operating in 11 countries within our corporate headquarters located in Piraeus, Greece. Our area of expertise expands on specialized technology solutions, software services, contact center and business process outsourcing enabling financial institutions and large organizations to transform their business ecosystems, empowering their digital journey, and greatly simplifying and facilitating transactions with other businesses and its customers. Our Mission is to empower today’s businesses and organizations with tomorrow’s technologies to deliver unique experiences to their own customers and become future proof. At Mellon, we cultivate a challenging, collaborative, and relationship-oriented working environment that offers development opportunities and exposure to international practices. We are proud of our people, and we believe that leveraging diverse cultures and backgrounds improves our everyday life and boosts innovation and efficiency. Join us to make a real impact, shape the industry, be part of an award-winning team of professionals, and experience a multinational culture.

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