Senior Back End Developer

Il y a 2 jours

, Belgique Videntra Temps plein 90 000 € - 125 000 € Contrat

We are looking for aSenior Backend Engineer, with strong Python experience, who can also take on Scrum Master responsibilities. Experience with Go is also a big plus.

You will lead backend architecture and development across multiple products, helping take them from fast-moving applications to secure, reliable and enterprise-scale platforms.

PRINCIPAL RESPONSIBILITIES

  • Lead the architecture and development of backend services across multiple products.
  • Build highly available, low-latency and scalable Python APIs and services.
  • Designreal-time systems, including WebSockets/SSE, streaming updates and interactive workflows.
  • Build content ingestion, media/document processing, indexing and asynchronous pipelines.
  • Design event-driven systems, queues and background-job orchestration.
  • Design robust APIs and integrations with internal and external services.
  • ImplementIAM, authentication, authorization and enterprise access controls.
  • Design scalable object-storage and large-file workflows.
  • Own backend reliability, performance, observability, security and production readiness.
  • Contribute hands-on to the codebase and provide technical leadership.
  • Support sprint planning and help the team remove delivery blockers.

SKILLS AND EXPERIENCE

  • 8+ years of backend engineering experience, with expert-level Python.
  • Strong production experience withFastAPI and Pydantic;Go experience is also valued.
  • Strong experience withreal-time systems, WebSockets/SSE and asynchronous architectures.
  • Strong experience designingAPIs, distributed systems, events, queues and background jobs.
  • Strong experience withcontent ingestion, media/document processing, indexing and search.
  • Strong knowledge ofMongoDB, SQL, Elasticsearch/OpenSearch and Redis.
  • Experience withobject storage and large-file processing workflows.
  • Strong experience withIAM, authentication, authorization and application/API security.
  • Experience building forhigh availability, low latency, scalability and fault tolerance.
  • Strong understanding of async processing, concurrency, retries, idempotency and caching.
  • Production experience withGCP, Kubernetes and Docker/Podman.
  • Strong experience with CI/CD, testing, monitoring, logging and performance optimisation.
  • Strong architectural judgment, technical ownership and communication skills.
  • Practical experience with Agile/Scrum and engineering delivery.

TECHNICAL ENVIRONMENT

WHAT WE ARE LOOKING FOR

Ahands-on senior backend engineer and technical leaderwho can architect, build and operate enterprise-grade platforms.

The emphasis is on strong backend engineering:real-time systems, distributed architectures, data and content pipelines, reliability, security and production scale.