freelance full stack developer senior

Helion Research is seeking a Full Stack Developer to join a small internal team in Antwerp. You will own features end-to-end, from frontend React with Vite to typed backends using Hono, tRPC and Drizzle on PostgreSQL, with a strong emphasis on quality and collaboration.You’ll work closely with management and users, ship AI-enabled features and experiment...

Nous accompagnons actuellement deux startups basées à Bruxelles, actives respectivement dans les secteurs e-commerce et SaaS, dans le recrutement de profils techniques seniors.Les deux environnements recherchent avant tout des développeurs avec une forte mentalité produit, capables de construire, prendre des décisions et rester très impliqués dans le...

Antwerp, Belgium - Product Development departmentWe’re a game changer that optimizes supply chains of the world’s leading companies with our very own smart software and services. Are you a born innovator and are you passionate about Python? Do you enjoy exploring the possibilities that AI technology offers and do you want to build practical AI solutions...

Location: Brussels, Belgium (Hybrid: 2-3 days remote per week)Contract Type: Freelance (Prestation de services)Levels & Experience Required: Junior (1 year exp.) | Medior (3 years exp.) | Senior (10 years exp.)Language Requirements: Fluent in English (3/4) OR fluent in Dutch/French (3/4)About Smile: Why Join Us? 😊Passionate about tech, digital, and...

TMC is seeking a Rust Full Stack Developer to join our international high-tech consultancy team in Belgium. You will develop, test, and maintain software using Rust and C, and collaborate across cross-functional squads to design and ship new features.You will work with security-focused tasks, contribute to code reviews, and maintain technical docs while...

Senior freelance Project ManagerMaking sure you fit the guidelines as an applicant for this role is essential, please read the below carefully.EORTC is looking for an experienced Project Manager for a 7-month maternity leave cover starting in December 2026. This mission is preferably offered on a freelance basis — but a fixed-term replacement contract may...

A federal public-sector organisation is modernising a portfolio of applications that support unemployment regulation, including eligibility, payments, debt management, and financial and accounting processing. In thisSenior Fullstack Java Developerrole, you will work across legacy IBM WebSphere components and newer cloud or hybrid services, using Java, Spring...

Join Us as Senior Business Developer About Us SPB Benelux is an SME operating as a broker, administration office, and claims manager in the field of “lifestyle” insurance, and is part of the SPB Group, leader in affinity insurance and service solutions, operating in 12 countries across Europe. SPB Benelux manages insurance programs and extended...

Join Us as Senior Business Developer About Us SPB Benelux is an SME operating as a broker, administration office, and claims manager in the field of “lifestyle” insurance, and is part of the SPB Group, leader in affinity insurance and service solutions, operating in 12 countries across Europe. SPB Benelux manages insurance programs and extended...

Join Us as Senior Business Developer About Us SPB Benelux is an SME operating as a broker, administration office, and claims manager in the field of “lifestyle” insurance, and is part of the SPB Group, leader in affinity insurance and service solutions, operating in 12 countries across Europe. SPB Benelux manages insurance programs and extended...

Join Us as Senior Business Developer About Us SPB Benelux is an SME operating as a broker, administration office, and claims manager in the field of “lifestyle” insurance, and is part of the SPB Group, leader in affinity insurance and service solutions, operating in 12 countries across Europe. SPB Benelux manages insurance programs and extended...

OMETA, een snelgroeiend softwarebedrijf in België, zoekt een gemotiveerde Full Stack Developer. Je speelt een sleutelrol in het ontwikkelen van hoogwaardige webapplicaties en hebt expertise in zowel front-end als back-end ontwikkeling.Je verantwoordelijkheden omvatten het schrijven van ontwerpen, het ontwikkelen van back-end .NET-services en het maken van...

Mission Overview:We are seeking a Full Stack .NET + ALM / IaC Engineer for a consultancy mission at a client site, representing Keystone Solutions. This role is crucial for supporting development processes and managing deployment, release, and infrastructure processes to ensure a stable, secure, and scalable IT environment.Key Responsibilities:Contribute...

Join Us as Senior Business DeveloperAbout UsSPB Benelux is an SME operating as a broker, administration office, and claims manager in the field of "lifestyle" insurance, and is part of the SPB Group, leader in affinity insurance and service solutions, operating in 12 countries across Europe.SPB Benelux manages insurance programs and extended warranty...

Join Us as Senior Business DeveloperReady to make your application Please do read through the description at least once before clicking on Apply.About UsSPB Benelux is an SME operating as a broker, administration office, and claims manager in the field of "lifestyle" insurance, and is part of the SPB Group, leader in affinity insurance and service solutions,...

Full-Stack .NET Developer (Medior) We are looking for a Medior Full-Stack Developer to design, develop, implement, and maintain software applications within a modern .NET and microservices environment. You will contribute to delivering secure, scalable, and high-performing solutions that support critical business processes and enhance the user experience....

Our client, a prominent organization in the public housing sector, is seeking a technical leader to guide an Agile development team through a digital transformation. This role balances application architecture with team leadership and hands-on delivery to drive high-quality cloud-native solutions. Define and safeguard technical architecture and design...

For a customer in Antwerp, we are searching for a freelance Java Developer to work in the Daily Banking team and play a key role in maintaining, developing, and testing Java backend services that are essential to their payment systems. These services are strongly integrated with external partners as well as internally developed applications.You will also be...

HIGHLIGHTSLocatie: regio Antwerpen+ hybrideContracttype: Vast contractUSP: Mee bouwen aan AI-first softwareontwikkeling binnen een high-end Microsoft engineering omgevingMust-haves: .NET / C#, Azure, React, Domain Driven Design (DDD), AI tools (Claude of Copilot)JOUW ROLAls Senior Agentic Software Engineer (.NET & AI) werk je binnen een sterk technisch team...

💫 HIGHLIGHTSLocatie: regio Antwerpen+ hybrideContracttype: Vast contractUSP: Mee bouwen aan AI-first softwareontwikkeling binnen een high-end Microsoft engineering omgevingMust-haves: .NET / C#, Azure, React, Domain Driven Design (DDD), AI tools (Claude of Copilot)🎯 JOUW ROLAls Senior Agentic Software Engineer (.NET & AI) werk je binnen een sterk...