Full Stack Engineer

Senior Full-Stack Developer & DevOps B2B contract Duration: ASAP – End of the year, with possible extensions Location: Brussels-1000 (hybrid) — remote possible at a lower rate About the Role We're looking for a Senior Full-Stack Developer & DevOps who loves clean Python code, scalable cloud setups, and thrives on the freedom to build things right. You'll help shape our core architecture, implement practical AI automation, and work in a team that prioritizes real trust over micromanagement. You will be primarily responsible for the technical development of part of the AREA42 applications and services, working closely with the IT Lead and acting as a senior technical advisor across projects and ventures. Task Objectives • Support the lead in the tech build, including APIs / user experience, front and backend systems, data platforms, and overall architecture, in close collaboration with the IT Lead. • Act as senior advisor to the AREA42 teams to define the best technologies, tools, and architectures for each project and venture. • Support business analysis with technical input. • Identify and systematically deploy best practices to ensure sustainable scalability of the applications — in particular making each module an asset for the following ones, ensuring developers work like craftsmen, and documenting the code produced. • Contribute to AI-based regression testing. Task Deliverables & Milestones • Maintenance and development of Python web services. • Maintenance, development, and improvement of CI/CD pipelines. • Collaboration with other IT team members on service communication. • Support other teams (e.g., risk and data analytics) by building custom solutions and automating tasks. • Co-create processes and workflows, providing technical insight and advising on the best long-term solutions. Desired Hard Skills Backend • Python 3.10+ • FastAPI • Celery • SQLModel and Pydantic • Pydantic AI • SQLAlchemy • Black • Flake8 • Git • Alembic • PostgreSQL • JWT • REST API • Programmatic usage of AI models • WordPress administration, plugin/theme development DevOps • GitLab CI/CD • ArgoCD • Kubernetes • Helm • Docker Cloud Architecture / Sysadmin • Google Cloud Platform • GKE • Compute Engine • IAM • Secret Manager • Monitoring • BigQuery • Storage • Cloud SQL • Error Reporting / Logging • VPC networking • Vertex AI • Linux • Nginx • WireGuard • ufw / iptables Front End (nice to have) • TypeScript • Next.js • NPM • ESLint • Prettier • Husky • Git Desired Experience Atypical profiles often work better for atypical jobs, and it's hard to predict the winning skill combinations of the best candidates. We also prefer team culture over individual performance. That said, here are a few qualities we look for: • Successful experience as a full-stack developer in a startup environment, with very good Python, cloud architecture, and deployment skills. • Team player. • Outstanding execution across frontend and backend environments; experience with data architecture is a plus. • Highest level of professional and intellectual integrity — trust matters. • Able to handle both success and failure, positive feedback as well as critique. • 80/20, structured self-starter with strong drive. • Can perform independently (we do not micromanage our developers) and deliver consistent, high-quality work according to established best practices. • Understanding of B2B trade is a plus; knowledge of trade credit insurance is a nice-to-have. Key Skills Summary • ArgoCD — Expert level • FastAPI — Expert level • Google Cloud Platform — Expert level • Kubernetes — Expert level • PostgreSQL — Expert level • Python — Expert level Languages • English — Full professional proficiency (required). • Dutch or French — Full professional proficiency (nice to have).