83 backend developer English-speaking jobs in Brussels

The role We are looking for a Front End Developer with strong expertise in Angular and modern web technologies ... Git) Required Experience & Qualifications Minimum 5 years proven experience as a Front End Developer ... solid UI development skills and hands‐on experience with SharePoint, working closely with designers, backend ... SPFx / modern pages) to support business requirements Integrate front‐end components with APIs and backend ... Optimize applications for performance, accessibility, and usability Collaborate with UX designers, backend

Lead Developer (Backstage) – Energy Sector – Brussels – Freelance / CDI Full‑time Join a high‑impact ... Within this context, the service contributes to the evolution and operational excellence of an internal developer ... European energy landscape is undergoing significant transformation, requiring scalable, secure, and developer‑friendly ... ) At least 4 years of experience developing backend services with Node.js, preferably for platforms ... Services & Integrations Extension and configuration of the Backstage backend Integration with internal

Backstage Lead Developer Industry: Energy / Utilities (Electricity Transmission & Infrastructure) About ... ) Backend & Frontend, 4+ years with Node.js 3+ years with React DevOps & Cloud Experience with CI/CD ... & Integrations Extend backend services and integrate APIs, CI/CD pipelines, and identity systems Configure ... Backstage (design, customization, maintenance) Strong experience with plugin development (frontend & backend ... processes, roles, and organizational structures Ensure performance, stability, and security standards Backend

GIS Developer opportunity with NATO Communications and Information Agency (NCIA) | Brussels, Belgium ... We're looking for an experienced GIS Developer to join a high-impact team supporting NATO Communications ... ArcGIS SDK preferred) • Proficiency in Python for geospatial processing and ETL • Experience building backend ... ArcPy, GeoPandas) • Optimize performance for backend queries and map rendering Required Expertise & Qualifications

Backend Integration: Partner with backend engineering teams to facilitate real-time data exchange and ... for a skilled Sitecore Developer with a minimum of 5 years of experience. ... Job Overview: Sitecore Developer For our client active in the rail transportation sector, we're looking ... System Integration: Expertise in backend integration and managing consistent data flows.

Our client is looking for a .NET backend developer to join their team within the financial services / ... banking sector.You will be responsible for building and maintaining robust backend systems and integration ... reliability and continuous improvementRequired qualificationsTechnical degree OR minimum 5 years of backend ... regulated environment.Experience: 5-10 years of relevant experienceKey responsibilitiesDevelop and maintain backend

.Net Developer Job Overview Develop and maintain high-quality .NET applications and backend services ... Responsibilities Analyze, design, develop, and maintain applications using .NET and .NET Core Build scalable backend

.NET DEVELOPER – BRUSSELS – 12 MONTHS+ My client is looking for an experienced Freelance .NET Developer ... robust applications and microservices using .NET (C#, .NET Core/.NET 6+) Build and enhance APIs and backend

ll Do · Analyze, design, develop, and maintain applications using .NET / .NET Core · Build scalable backend ... ACENSI is looking for a Medior .NET Developer - Electricity Markets for one of their clients based in ... the Energy Sector in Brussels : We're looking for a highly skilled .NET Developer (minimum 5 years ... problem-solver who enjoys technical challenges · Someone who values teamwork and clear communication · A developer

Contributions and active participation to open source, tech talks, blogs or developer communities. ... What You'll Do Architect and implement backend (or fullstack) solutions, integrating AI models and ... What you bring Core Engineering: Strong experience in backend engineering (Java) and familiarity with

evolve a multi-tenant B2B SaaS streaming platform Building and maintaining features across frontend and backend ... experience working on Video / streaming platforms Hands-on experience with React, Next.js, TypeScript Backend ... reliability as new clients and features are added Contributing to architecture decisions across frontend, backend

Eligibility Requirement (Mandatory) Important: EU Citizenship required Fujitsu is looking for a Senior Python Backend

re looking for Strong experience as an AI Engineer or in a similar role working with AI agents Solid backend ... using Pydantic AI Integrate LLMs (Claude, Gemini, OpenAI) into customer-facing features Building robust backend

understanding of prompt engineering and LLM evaluation methods Experience building APIs and scalable backend ... practical experience Fluent in English Technical Skills Strong proficiency in Python and FastAPI for AI backend

Proficiency in Java 8+ and Spring Boot for backend testing and mocking. ... This squad manages the acquisition platform for mortgages, leveraging a Java 8/Spring 5 backend with ... Description Develop automates tests using Java, Rest-Assured, and Cucumber (BDD approach) to validate backend

Job Title: ServiceNow Developer Location: Brussels, Belgium Contract Type: [Permanent or Freelance] Start ... Date: ASAP About the Role We are looking for a talented ServiceNow Developer to join a dynamic and international

Impact Build software that matters, contributing hands-on to features and improvements across a .NET backend

Integration Developer We are supporting a new assignment for an experienced Integration Developer to

front-end tools and frameworks such as Angular 17, HTML5, CSS, JavaScript Experience with middleware and backend

optimization, Container registries Docker Compose At least 2 years of experience in full-stack development: Backend