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 databases and data models SQL, NoSQL, document DB, Cosmos DB etc. * Experience with Fluent NHibernate, Protocol Buffers & Robot Framework * Solid experience with CI/CD tools – Gitlab, Jenkins * Strong experience of Agile, Behavioural Driven Development & Test-Driven Development * Hands on experience in modular development of enterprise level application, development experience with Fleet Management System (FMS) is highly preferred Please apply for more information.

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