Senior Fullstack Developer jobs in Leuven

SAP PS Fullstack Developer - Brussels - 12 months One of our important clients is currently looking for a SAP PS Fullstack Developer in Brussels for a 12-month contract. Day rate is negotiable. We’re supporting a major SAP transformation toward a product-driven, DevOps operating model and are lookin

We have a job opening for the role Full Stack Developer The below is the JD If your interested let me know DESCRIPTION OF THE TASKS Following tasks will be performed by external service provider: Development of front-end website architecture. Design of user interactions on web pages. Development of

We currently have a vacancy for a Full Stack Developer fluent in English, to offer his/her services as an expert remotely (within EU). In the context of the first assignment, the successful candidate will be integrated in the Development team of the company that will closely cooperate with a major c

We currently have a vacancy for a Full Stack Developer fluent in English, to offer his/her services as an expert remotely (within EU). In the context of the first assignment, the successful candidate will be integrated in the Development team of the company that will closely cooperate with a major c

Must-have – Frontend Experience building front-ends with React Frontend testing: Unit testing using Vitest End-to-end testing using Playwright Must-have – Backend Experience designing and building REST APIs. Hands-on experience with both of the following: Node.js + Koa.js (Frontend API / BFF layer).

22-04-2026 Aartselaar Senior Full Stack Java Developer (GIS) Voor een toonaangevende speler in de waterzuiverings- en milieusector zijn wij op zoek naar een ervaren Senior Full Stack Java Developer met een passie voor GIS-oplossingen. Deze organisatie zet sterk in op innovatie en de energietransitie

Join an innovative digital environment focused on building scalable, cloud-native applications. We’re looking for a Senior Full-Stack Developer to join our client’s team and contribute to the development of modern web applications hosted on Azure. You will be part of a product-driven setup, working

23-04-2026 Brussel Voor onze klant in Brussel zijn wij op zoek naar een Full Stack Developer: Frontend (React) bouwen van moderne UI’s in React testen met Vitest end-to-end testen met Playwright Backend REST APIs ontwerpen werken met: Node.js + Koa.js Python + FastAPI + Pydantic Cloud / DevOps Micro

At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a professional Full Stack Developer to join our UniQue Brussels, Belgium team. What will you be bringing to the team? Handle user requests and support tickets, troubleshoot

About the job Full-stack developer Java / Angular Senior Java Full-Stack Developer Location: Brussels (hybrid – on-site required) Contract: Long-term detachment Duration: ASAP – 31/12/2026 (full-time, ~9 months initial term) Language: French or Dutch + English (professional level) Role Senior Java F

Taglayer builds personalisation software that Internet businesses can use to create personal experiences based on the visitors' profile. You probably didn’t noticed that you’ve used a product we've build. Today more than 100M requests / month get handled by our system. Leading in 20 years of visit d

Taglayer builds personalisation software that Internet businesses can use to create personal experiences based on the visitors' profile. You probably didn’t noticed that you’ve used a product we've build. Today more than 100M requests / month get handled by our system. Leading in 20 years of visit d

We currently have a vacancy for a Full stack Developer (Angular, Java) fluent in English, to offer his/her services as an expert who will be based in Brussels, Belgium . The work will be carried out either in the company’s premises or on site at customer premises. In the context of the first assignm

We currently have a vacancy for a Full stack Developer (Angular, Java) fluent in English, to offer his/her services as an expert who will be based in Brussels, Belgium . The work will be carried out either in the company’s premises or on site at customer premises. In the context of the first assignm

Job Description — Senior Full Stack Developer (React Focus) About Cebir Cebir is a leading provider of scientifically validated assessment solutions, helping organizations across sectors make better HR decisions in recruitment, internal mobility, and talent development. Our platform combines robust

Our client, a leading organization specializing in environmental water management, is seeking a Senior Full-Stack Developer to drive their digital transformation. The role involves developing advanced web applications on cloud infrastructure and integrating geospatial data to visualize essential ass

About the job Senior Full Stack Java Developer (GIS) - JP053884 Senior Full Stack Java Developer (GIS) Aartselaar, Belgium (Hybrid – 2–3 days onsite/week) Contract: Until Dec 2026 | Full-time We're hiring a Senior Full Stack Java Developer to build and enhance modern GIS-based web applications on Az

Job Description — Senior Full Stack Developer (React Focus) About Cebir Cebir is a leading provider of scientifically validated assessment solutions, helping organizations across sectors make better HR decisions in recruitment, internal mobility, and talent development. Our platform combines robust