Backend Engineer: APIs

AppTweak is seeking a motivated Back End Developer to scale our data platform and infrastructure in Brussels. You’ll work in a multidisciplinary squad, building data fetch workers, ETL pipelines, and APIs, while optimizing DBs and message queues. Hybrid work: at least 3 days per week in the office. You’ll collaborate with frontend engineers, data...

AppTweak is seeking a motivated Back End Developer to scale our data platform and infrastructure in Brussels. You’ll work in a multidisciplinary squad, building data fetch workers, ETL pipelines, and APIs, while optimizing DBs and message queues. Hybrid work: at least 3 days per week in the office. You’ll collaborate with frontend engineers, data...

Talan in Belgium is seeking an Experienced .NET Developer to design, develop, and maintain robust backend systems. You will collaborate with a team of professionals to create scalable applications that meet business needs. You will implement REST APIs and Windows services using .NET Framework and .NET Core, focusing on stability and performance, while...

pARHS Group is seeking an experienced backend engineer to architect server-side components for scalable web applications in Belgium. You will design RESTful APIs, optimise database schemas, and ensure secure, efficient data handling while collaborating with front-end teams and product managers. /ppThe role requires strong Python with Django/Flask/FastAPI,...

pTalan Group is seeking a talented Python Developer to contribute to large-scale IT projects. You will focus on backend engineering, utilizing Python and Flask to enhance business-critical applications. /ppYour role includes designing APIs, working with data models, and ensuring high code quality in a collaborative environment. Experience with AWS and Docker...

ARHS Group is seeking an experienced backend engineer to architect server-side components for scalable web applications in Belgium. You will design RESTful APIs, optimise database schemas, and ensure secure, efficient data handling while collaborating with front-end teams and product managers. The role requires strong Python with Django/Flask/FastAPI,...

SEIDOR in Brussels is seeking a seasoned .NET Developer to design, develop and test back-end components using ASP.NET Core and EF Core. You will implement REST and event-driven APIs, ensure secure authentication, and contribute to CI/CD pipelines. You will collaborate with international teams, mentor junior developers, and help maintain API documentation...

A global consulting firm is seeking an experienced .NET Developer to join its team in Brussels. In this role, you will design, develop, and maintain backend systems and APIs using the .NET Framework and .NET Core. You will work closely with other IT professionals to deliver high-quality software solutions while ensuring code quality through best practices. A...

pKEYES is seeking a Backend Software Engineer (Python) to join an EU institution project in Brussels. You will contribute to designing and maintaining backend services, APIs, and cloud deployments in a multinational team. /ppRegular onsite presence within two hours of Brussels is required, and you will collaborate with frontend, product, and security teams...