71 freelance English-speaking jobs in Brussels

Data Engineer/Modeller to establish and improve modeling standards for the Data Hub tribe. Responsibilities include DBA support in non-prod, performance optimization, and working with Big Data technologies like Scala, Kafka, and Spark. Requires 5+ years of relevant experience.

Senior Linux Technical Lead needed to elevate platform maturity. Drive operational excellence, define best practices, and lead the team. Requires deep Linux expertise, Ansible, RedHat OS, and strong leadership.

Treasury & General Ledger Accountant will manage treasury accounting, reconciliations, and financial controls. Responsibilities include month-end closing, balance sheet reviews, and supporting audits. Requires a bachelor's or master's degree in a related field, 5-7 years of relevant experience, and strong accounting and analytical skills.

Lead sustainability and environmental policy portfolios, shaping industry positions on EU Green Deal initiatives. Engage with EU institutions, policymakers, and stakeholders. Develop consensus positions with members and provide expertise across policy areas.

Full-stack software engineer needed for agile project team developing services to enable new business models. Responsibilities include software development, system design, and contributing to continuous integration and deployment. Requires proficiency in C#, .Net, REST, JSON, UI development frameworks, data storage technologies, and Azure technologies.

Senior Business Analyst needed to optimize business value by overseeing the lifecycle of assisted services solutions. Translates business needs into functional and non-functional requirements, coordinates end-to-end solutions, and supports successful implementation.

Provides L1/L2 support and troubleshooting for JAVA Enterprise (J2EE) applications. Installs, deploys, and monitors applications on Weblogic in various environments. Creates and maintains incidents/requests, knowledge articles, and automation scripts. Strong communication, scripting, and ITIL knowledge required.

Bruxelles – HybridStart Date: 22 June 2026End Date: 31 December 2026Duration: 7 monthsContract Type: Freelance

Ability to work autonomously in an international and multicultural environment   What We Offer Flexible freelance

Senior Data Engineer needed to build, maintain, and optimize data pipelines for embedded insurance programs. Responsibilities include data financial reporting, data governance, and technical leadership. Must have 5+ years of experience in SQL, dbt, and Python. Experience with BigQuery and cloud platforms is preferred.

Design and develop high-performance web applications using C# and .NET Core/.NET 8. Build secure RESTful APIs and microservices while ensuring code quality through testing and Agile practices. Requires 3+ years of experience.

Scrum Master role to guide development teams in applying Agile principles. Responsibilities include facilitating ceremonies, removing impediments, and promoting continuous improvement. Requires 3+ years of experience and a recognized Scrum Master Certification.

Functional Analyst to design and structure functional solutions for open-source projects. Responsibilities include formalizing client requirements, writing User Stories, and guiding technical teams. Requires a Master's degree and 4+ years of experience in the digital sector.

Design and develop robust, high-performance native Android applications using Kotlin. Collaborate on integrating RESTful APIs, ensuring code quality through testing and reviews, and maintaining applications on the Google Play Store.

Design and develop high-performance, user-centric native iOS applications using Swift. Responsibilities include API integration, automated testing, performance optimization, and App Store deployment. Requires 3+ years of experience.

Hopex Application Package Specialists will design, create, test, and implement applications. Responsibilities include configuring risk and compliance modules, creating workflows and reports, integrating with bank systems, and providing 2nd level support.

Integration Architect needed for airspace industry. Develop, implement, and manage integration architecture processes. Support Environment Management team and propose integration platform improvements. Requires 10+ years of experience in integration architecture, OpenShift, and air traffic domain.

Longue terme assignment : We are open to consider freelance (with a daily rate) or permanent position

The Digital Platform and Event Management Expert will design, implement, and improve digital engagement systems for the Policy Forum on Development and the Global Gateway CSO-LA Advisory Platform. Responsibilities include managing stakeholder platforms, online communities, databases, consultation tools, webinars, and content governance. The expert will also lead the delivery of events, conferences, and workshops.

As a Business Analyst, you will translate client business needs into digital solutions, focusing on open source. You will analyze requirements, write specifications, and support development teams. You will also model business processes, manage user acceptance testing, and advise clients on open-source solutions.