Job title: Senior F# Developer
Contract: Freelance
Contract Duration: 6 months + Transition to permanent contract
Location: Barcelona or Algeciras
We are hiring for an F# Developer for our client in the transportation sector. Youll own the full application lifecycle research, design, development, testing and continuous deployment and delivery of a Fleet Management System. Its a mission critical, real time systems role, idóneo for someone with deep functional and object oriented programming expertise.
Key Responsibilities:
Own the full lifecycle design, build, test and deploy of complex distributed cloud agnostic systems, delivering quickly through ambiguity
Engineer resilient systems, owning the services availability and scalability
Lead design and code reviews that lifts both the codebase and the team
Shape RESTful API design end to end versioning, backwards compatibility, authentication, retry mechanisms and rate limiting
Keep builds green and uphold the branching / code management strategy
Work across R&D;, IT and Business Operations to align product and operational needs,



and build integrations across internal and customer systems
Advise Product Owners on risks, technical debt and improvement opportunities, and drive continuous improvement through retrospectives and cross-team communitie
Required skills:
Design and programming skills primarily in backend with a focus on enterprise level solutions using F# and .NET Core, .NET 6/7/8.
Working experience with C# and Python is a plus.
Experience of developing and debugging RESTful microservices
Experience working on low latency, highly scalable applications
Strong design and development experience in distributed, clustered, and multi-threaded applications
Experience in design and implementation of service interface and public APIs
Strong proficiency in object-oriented programming C++ (modern standards preferred)
Experience with Production-Grade Container Orchestration viz. Kubernetes etc.
Experience working with databa

📌 Senior F# Developer (Valladolid)
🏢 La Fosse
📍 Valladolid