Full stack-ontwikkelaar

Senior Full Stack Engineer — Web Applications | FinTech | AntwerpOrganisationOur client is a fast-scaling European FinTech player developing a cloud-based mortgage platform used by a growing portfolio of mid-market financial institutions. The engineering and product teams are centralised in the heart of Antwerp, working closely with leadership to streamline delivery, raise quality, and elevate the impact of their technology across multiple countries. With 12+ active financial institutions onboard and new markets rolling out, they are now strengthening their engineering squad.FunctionAs a Senior Full Stack Engineer, you act as the technical anchor of your squad: hands-on, fast-moving, and deeply embedded in delivery. You work closely with the CTO and Product Managers to turn ideas into high-quality features, unblock your teammates, and guide the squad towards predictable, high-velocity output.Roughly 80% of your time is pure engineering across backend and frontend, with 20% coaching and elevating the team. The role can organically grow into a team lead position, but does not require people management from day one.Your work spans:Designing and shipping production-level features end to endTackling complex backend logic in Python/FastAPI/DjangoBuilding reliable, scalable Angular frontendsImproving architecture, tooling and engineering excellenceGuiding junior and mid-level engineers through code reviews and mentoringTranslating product requirements into actionable technical workRaising the bar for security, reliability, testability and compliance in a regulated environmentProfileYou are a pragmatic, product-minded engineer with an eye for simplicity and a bias for action. You thrive in complex web architectures and know how to navigate regulated environments with confidence.You bring:6–10+ years of experience building production-grade web applicationsStrong backend mastery: Python, Django, FastAPI, REST, ORM optimisationSolid frontend expertise: Angular, TypeScript, state managementExperience integrating with external systems, APIs and financial/regulated environmentsA structured engineering mindset: testability, reliability, observabilityAbility to guide peers through thoughtful coaching and actionable feedbackStrong communication skills and comfort in hybrid/async teamsFull professional proficiency in English (other languages not required)OfferYou join a high-impact engineering team in a FinTech where your work directly shapes the daily operations of banks across Europe. Expect a role with influence, ownership and tangible product impact; not just ticket-taking.You can count on:A hybrid setup with 1-2 office days per week in Antwerp (flexible)A culture built on ownership, transparency and collaborationThe opportunity to grow into a technical leadership roleA lean, ambitious team aiming for long-term excellenceA competitive compensation package tailored to senior engineering profiles