Senior Full Stack Engineer (C#/.NET & React)

About the role

We are seeking a Senior Full Stack Engineer to help design, build, and scale our global payment platform. The position is roughly 70% backend and 30% frontend, allowing you to work on high‑performance APIs, microservices, and modern web interfaces.

Key responsibilities

• Design, develop, and maintain scalable backend services using C# and .NET Core.
• Build and enhance RESTful APIs and micro‑services for payment processing.
• Apply SOLID principles, design patterns, and clean‑architecture practices.
• Write unit and integration tests, and optimise performance, reliability and scalability.
• Support CI/CD pipelines, build automation and deployment processes.
• Develop responsive web applications with React (preferred) or Angular.
• Collaborate with product, design and architecture teams to deliver secure, user‑centric experiences.
• Participate in Agile ceremonies, technical design discussions and code reviews.

Required profile

• 6+ years of professional software engineering experience.
• Strong hands‑on expertise with C# and .NET Core.
• Experience building REST APIs and distributed systems.
• Solid knowledge of SQL Server and relational database design.
• Proficiency in JavaScript/TypeScript, HTML5 and CSS3.

Required skills

• C#
• .NET Core
• RESTful APIs
• Micro‑services
• SQL Server
• JavaScript
• TypeScript
• HTML5
• CSS3
• React
• Angular