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September 24, 2026

Senior .NET Developer

Senior • On-site

Alcobendas, MD, Spain

Quick Facts

  • Role: Senior .NET Developer (Middle/Senior Software Engineer)
  • Focus: Full-stack + backend services for international money transfer/fintech products

Description

Build and maintain full-stack solutions spanning frontend and backend. Design and implement backend services (APIs, payment provider integrations, and event processing), and work with AWS cloud infrastructure to deliver resilient, scalable systems. Contribute to product architecture decisions, participate in code reviews, and collaborate with product, DevOps, and compliance teams on KYC/AML and payment/PSP flows.

Responsibilities

  • Build and maintain fullstack solutions across frontend and backend
  • Design and implement backend services (APIs, payment provider integrations, event processing)
  • Work with cloud infrastructure to build resilient, scalable systems
  • Contribute to product architecture decisions, participate in code reviews, and mentor junior engineers
  • Collaborate with product, DevOps, and compliance teams (KYC/AML, PSP flows)

Requirements

  • 5+ years of commercial experience in fullstack/backend development
  • Strong command of C#/.NET and solid frontend experience with TypeScript/React
  • Experience with cloud platforms (AWS preferred)
  • Solid understanding of distributed systems design principles
  • English proficiency for daily work communication

Benefits

  • Opportunity to work on product architecture and codebase decisions
  • Collaboration with product, DevOps, and compliance (KYC/AML, PSP/payment flows)
  • Work across modern frontend and AWS-based backend infrastructure

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