Backend Engineer: Java/JEE, APIs

SEIDOR in Brussels is seeking an Advanced Java Developer to design, develop and test backend components using the Spring ecosystem. You will implement REST and event-driven APIs, manage persistence layers and integrate with messaging systems to power secure, scalable applications.Join a multinational tech company with a start-up spirit; you will contribute...

SEIDOR is seeking an Advanced Java Developer to join our Brussels team in a hybrid work setup. You will design, develop and test backend components using the Spring ecosystem, implement REST and event-driven APIs, and contribute to CI/CD pipelines.You will work on authentication, data persistence, and integration with messaging systems, while participating...

Onepoint is seeking a senior Java developer to design, implement, and maintain backend services with Spring Boot while building RESTful APIs to support web and mobile applications. You will also contribute to frontend work using Angular, collaborate on architecture decisions, and ensure code quality through best practices and CI/CD.The role focuses on...

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...

SEIDOR, a multinational technology company with a start-up spirit, seeks an Advanced Java Developer (Fully Remote) to join the Brussels team. The role focuses on designing, developing and testing back-end components within the Spring ecosystem, delivering REST and event-driven APIs, and ensuring robust authentication, persistence, and CI/CD integration.You...

Nova Hunte Ltd is seeking a seasoned Python Back-End Software Engineer in Brussels for a long-term contract. You will architect server-side components, develop RESTful APIs, and optimise database schemas while ensuring security and scalability.The role requires collaboration with cross-functional teams and hands-on CNC/CD practices in cloud environments. The...

Talan 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.Your role includes designing APIs, working with data models, and ensuring high code quality in a collaborative environment. Experience with AWS and Docker is...

EasyPost is seeking a hands-on Senior Software Developer to help build and operate our secure document-delivery platform. You will own features from design to production, focusing on backend and cloud engineering with TypeScript on AWS.You will design and develop TypeScript services, AWS Lambda functions and NestJS APIs, build serverless infrastructure with...

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...