Senior Backend Engineer (Python)

About the role

A technically demanding project involving data-intensive processing, system integration and semantic technologies is looking for a Senior Backend Engineer (Python). You will take ownership of an existing codebase, stabilise it and evolve it according to project needs. The role suits an experienced engineer comfortable with complex systems and data-driven architectures.

Key responsibilities

• Analyse, understand and take ownership of an existing Python-based backend.
• Refactor and enhance backend components with a focus on maintainability and performance.
• Implement and maintain data processing pipelines and integration logic.
• Work closely with data/semantic engineers on RDF/SPARQL-driven workflows.
• Contribute to architecture reconstruction and technical documentation.
• Support deployment, configuration and troubleshooting.
• Ensure code quality through reviews, testing and best practices.

Required profile

• 3+ years of professional experience in backend development.
• Experience with data-intensive or integration-heavy systems, APIs, batch processing and backend services.
• Solid understanding of software architecture and design patterns, debugging and working with legacy codebases.
• Experience in complex, multi-stakeholder projects (EU or public-sector projects are a plus).

Required skills

• Strong proficiency in Python.
• Apache Airflow and AWS.
• Configuration-driven systems (XML, JSON, YAML).
• Nice to have: Semantic Web technologies (RDF, SPARQL, OWL), data modelling, CI/CD and containerisation, and documentation tools such as AsciiDoc and Antora.

What we offer

• Competitive full-time salary.
• Private health coverage on the company's group programme.
• Flexible working hours.
• Language courses, specialised training and continuous learning opportunities.
• Autonomy, mentoring and career growth within a dynamic environment.

Candidates apply by submitting a detailed CV in English, quoting reference SBEP/11/26.