163 frontend developer English-speaking jobs in Brussels

Development of features to enhance the user experience. Building reusable code for future use. Understanding and implementation of security and data protection. Cross-platform optimisation. Design responsive applications. Participating in the design and creation of scalable software. Maintenance of code integrity and organisation.

About the Role: As a Senior Vaadin Developer , you will be the bridge between this powerful technology ... What you'll do Design, develop, and optimize the Vaadin-based frontend of our core platform Collaborate ... You'll own the design and development of a modern, intuitive Vaadin-based frontend that enables customers ... quality through testing, code reviews, and continuous improvement What you bring Proven experience in frontend ... intuitive and responsive for end users Contribute to architectural decisions that shape the future of our frontend

Knowledge of backend and frontend architecture and CI/CD practices. ... This role offers the opportunity to influence core technical decisions, improve developer efficiency, ... Improve system performance, maintain CI/CD practices, and implement automation to increase developer ... You will work across backend APIs, data layers, and frontend interfaces, delivering high-quality features ... Accountabilities Design, develop, and maintain scalable backend and frontend features using TypeScript

products, primarily focusing on backend development, with occasional frontend work. ... Senior TypeScript Developer Contract, 6 months Brussels, 1 day a week on site (flexible) Mission Context ... You'll also help build Developer Portals with documentation, tooling, and best practices. ... Mission Objective: As a Senior Developer, you'll craft and deploy features across cloud-native software

We're hiring a Frontend Developer (UI / Interface Designer) Join a digital project focused on building ... UX/UI designs and mock-ups into clean, semantic HTML Building responsive UI solutions using modern frontend ... knowledge of Twig 3 Comfortable working in English within an Agile, international team Nice to have Frontend ... stakeholders through regular meetings and Agile ceremonies Required skills Strong experience in UI design and frontend

Responsibilities Design, develop, and maintain full-stack applications using Java (backend) and React (frontend ... We're looking for an experienced Full-Stack Developer (Java + React) to join a major organisation ... Logistics Position: Freelance Full-Stack Developer – Java & React Duration: 12-month contract (with potential ... Essential Skills & Experience Strong professional experience as a Full-Stack Developer using Java (Spring

Key Responsibilities Develop and maintain modern frontend applications using React Contribute to backend ... SII is looking for a Senior React Developer to support the ongoing Agile and digital transformation of ... company culture, supported by an international group If you are an ambitious and experienced React Developer

We are seeking a highly skilled Senior Fullstack Developer to join our client's team in Brussels. ... Frontend development with React (TypeScript), webpack, ES6+, UI built with Ant Design; testing with Jest ... Frontend: React with TypeScript, webpack, ES6+; UI with Ant Design; testing with Jest and React Testing

Collaborate with cross‐functional teams – backend, frontend, design, product – to deliver impactful features ... Responsibilities Immerse yourself in our tech stack: microfrontends, serverless AWS, and best‐in‐class developer

Evolve both frontend and backend with a focus on quality, scalability, and velocity. ... Modern stack, real challenges: You'll work on a React frontend and Go backend, ship features end-to-end ... Who You Are 2–5 years of experience in software development (full stack or strong frontend/backend focus ... hybrid work Start Date: ASAP Experience: 2+ years (we love motivated builders eager to grow) Tech Stack Frontend

Billing Zencoder is building the next generation of AI coding agents—advanced tools that supercharge developer ... Proven ownership of complex frontend applications—ideally, customer‐facing portals or dashboards.

Investigate and resolve performance issues and communication gaps between frontend and backend. ... driving technical evolution, resolving performance issues, and ensuring seamless communication between frontend

Ideally, you have proven experience in all parts of the fullstack spectrium: frontend, backend, infra ... Proficiency with most of our core technologies Strong mastery & knowledge in a certain domain (e.g backend, frontend

engineering teams (Tech Lead or Manager roles) Solid understanding of REST APIs, databases, and modern frontend

for an RPG Analyst/Developer to join for a long term, freelance mission. ... RPG Analyst/Developer (Insurance) – Freelance A leading insurance client of ours in Belgium are looking ... Requirements: 5+ Years as an RPG Developer English speaking Additional Details START DATE: ASAP DURATION

Developer Consultant Coldfusion (DEV) – Brussels For an EU agency in Brussels, we are looking for a Developer

Python Developer We are looking for a Python Developer to join our team, which provides Information

Preferred Qualifications Certified Kubernetes Administrator (CKA) or Developer (CKAD). ... Job Title: Senior Developer – Platform Engineering Self Employed position Ideal start date: end of November ... early December Role Overview We are seeking a Senior Developer to design, build, and operate key components ... Collaboration & Continuous Improvement Collaborate with principal developer to translate the designs

Your Role As a Salesforce Developer, you will be responsible for designing, developing, and implementing ... I/II, Admin, or JavaScript Developer I are a strong plus Excellent problem-solving abilities and attention ... of Salesforce architecture, security, and governor limits Salesforce certifications such as Platform Developer ... accelerators, and knowledge-sharing initiatives What We're Looking For Proven experience as a Salesforce Developer

Java Backend Developer I am seeking a back end Java Developer to join an international team in Brussels ... Tasks and Responsibilities of the Java Developer Development of back-end website applications. ... Required Skills and Experience of the Java Developer Bachelor's Degree on a related field.