Senior F Developer

La Fosse; Sabiñán; Presencial; EUR 78.000 - 112.000; Jornada completa

Descripción de la vacante

La Fosse is seeking a Senior F# Developer for a freelance 6-month contract with potential permanent transition, located in Barcelona or Algeciras. You will own the full lifecycle of a Fleet Management System, from research to design, development, testing and deployment in a real-time, cloud-enabled environment.

You will design and build resilient, low-latency microservices in F#/.NET, lead code reviews, shape RESTful APIs, and collaborate across R&D, IT and operations to meet product and

Formación

• Backend focus with enterprise-grade F#/.NET Core experience.
• Proficiency in C# and Python is a plus.
• Experience building and debugging RESTful microservices.
• Experience with low-latency, scalable distributed systems.
• Strong OOP design in C++ and service interfaces.
• Experience with container orchestration (Kubernetes).
• Experience with SQL/NoSQL databases and data modeling.
• Familiarity with Protobufs, Robot Framework, CI/CD tools like GitLab/Jenkins.
• Agile, BDD, and TDD practices in development.

Responsabilidades

• Own full lifecycle design, build, test and deploy of complex distributed systems.
• Engineer resilient, highly available services with scalable architectures.
• Lead design and code reviews to lift codebase and team.
• Shape RESTful API design, versioning and security considerations.
• Maintain CI/CD pipelines and ensure green builds.
• Collaborate with R&D, IT and Business Ops to align needs.
• Advise Product Owners on risks and technical debt, drive improvements.

Conocimientos

F#/.NET

C#

Python

REST microservices

Low latency

Distributed systems

Multi-threading

Public APIs

C++

Kubernetes

Databases

SQL

NoSQL

Cosmos DB

Protobufs

Robot Framework

CI/CD

GitLab

Jenkins

Agile

BDD

TDD

Fleet Mgmt

Herramientas

Kubernetes

Descripción del empleo

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. You'll own the full application lifecycle research, design, development, testing and continuous deployment and delivery of a Fleet Management System. It's a mission critical, real time systems role, ideal 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 service's 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