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Senior Backend Developer

SGS

Madrid, SpainPosted 2 days agoFull-time

Job details

Company

SGS

Location

Madrid, Spain

Employment type

Full-time

Seniority

Mid level

Primary category

Software Development

Posted date

4 May 2026

Valid through

Job description

We are looking for a Senior Backend Developer with strong technical leadership skills to help shape and evolve our backend platform. You will act as a technical reference for the team, take ownership of backend architecture, improve code quality and engineering standards, and help drive a more mature, engineering‑focused culture.

You will work on a SaaS platform built on .NET 10, running primarily on Azure PaaS, in an international, English-speaking environment.

Responsibilities

  • Design, build, and evolve scalable, secure, and maintainable backend systems.
  • Lead backend development efforts, driving technical design and architectural decisions.
  • Be a technical reference for the team also support and mentor other engineers
  • Own the full software lifecycle—from concept and design to deployment, monitoring, and continuous improvement.
  • Work across modern and legacy systems
  • Collaborate with product, frontend, and DevOps teams to deliver end-to-end solutions.
  • Champion engineering excellence by promoting best practices (Clean Code, SOLID, testing strategies).
  • Architect and implement distributed systems and event-driven solutions.
  • Build and optimize CI/CD pipelines to enable fast, reliable delivery.
  • Ensure system reliability, performance, and observability in production environments.
  • Mentor and support other developers through code reviews, knowledge sharing, and technical guidance.
  • Contribute to technical documentation and ensure knowledge is shared effectively across the team.

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