senior developer

We are urgently looking for a Senior Java developer for Brussels area. Responsibilities Participate to the design/development/testing of a PKI footprint logic supporting traditional and post‑quantum‑ready cryptography using various crypto backend logic (Disk, HSM, ...). Qualifications Strong PKI/cryptography knowledge Strong Java experience C++...

adesso Belgium, who are we? We are an IT (start-up) provider working under the adesso umbrella with proven track record in different industries. The new Belgian entity of adesso is part of the expansion and growth strategy of the adesso group. With more than 10.000 employees spread over 60 locations we are entering an exciting period with our presence in...

We are a team of business analysts, information system architects, software developers and data analysts, all working together to develop and maintain the systems supporting the operation and management of renewable energy systems, and the trading of renewable energy. By joining us, you will be working at the core of the development of renewable energy...

Job Description A major player in the IT sector, we have continued to grow and evolve since our creation in 1993. With a dedicated team of nearly 1,400 employees spread across several sites in Wallonia and Brussels, NSI has followed an exceptional trajectory. Our company is at the forefront of the digital revolution, offering a complete range of IT services,...

Senior .NET Android DeveloperNow partnering with a leading company in Transport Execution Management!Dutch or French requiredAre you a senior .NET Android developer who takes true ownership of building high-quality, well-tested software? We're looking for a Senior .NET for Android Developer to design and build robust solutions within the Transport Execution...

FOD Financiën zoekt een Senior Java Developer binnen de Sitran ICT-afdeling. Je werkt aan Java/Angular toepassingen, CI/CD en robuuste microservices, met aandacht voor beveiliging en kwaliteit. Je maakt deel uit van een team van meer dan 1.300 ICT-professionals en draagt bij aan maatschappelijke toepassingen met directe impact. Coaching van minder ervaren...

Sector: Telecommunications Employment Type: Contract Location: Belgium (Hybrid) As a Senior Data Quality Developer, you will play a key role in strengthening enterprise data quality across multiple business domains.Please double check you have the right level of experience and qualifications by reading the full overview of this opportunity below.You will...

Bij Xelor ga je als .NET Consultant op projectbasis aan de slag bij verschillende klanten. Zo krijg je de kans om steeds nieuwe omgevingen, technologieën en uitdagingen te ontdekken. Voor dit project zoeken we een ervaren Senior/Lead Fullstack .NET Developer die het development team versterkt en mee bouwt aan bedrijfsbrede softwareoplossingen. Dit kan zowel...

Bij Xelor ga je als .NET Consultant op projectbasis aan de slag bij verschillende klanten. Zo krijg je de kans om steeds nieuwe omgevingen, technologieën en uitdagingen te ontdekken. Voor dit project zoeken we een ervaren Senior/Lead Fullstack .NET Developer die het development team versterkt en mee bouwt aan bedrijfsbrede softwareoplossingen. Dit kan...

Senior Full Stack Developer Location: Antwerp, Belgium (Hybrid) Contract Duration: 6 July 2026 – Long-term Contract Workload: Full-time Remote Work: Hybrid working available About the Role We are looking for an experienced Senior Full Stack Developer to join an innovative Agile development team focused on building and enhancing modern digital solutions...

SENIOR SAP/ABAP DEVELOPER Location: Melle & Hasselt, Belgium Contract Duration: 12 Months (Extension Possible) Work Model: Hybrid / Remote Flexibility Available Language: Dutch (CEFR C2 Required) Start Date: July 2026 (Earlier Start Negotiable) ABOUT THE ROLE We are seeking an experienced Senior SAP/ABAP Developer to join a leading organization in Belgium's...

Senior PHP/Laravel Developer Location: Brussels, Belgium – Hybrid Start: 28/09/2026 End: 31/12/2026 Workload: Full-time Language: Dutch C2 Role We are looking for a Senior PHP/Laravel Developer to develop and maintain high-quality, scalable software solutions within a public-sector environment. You will work closely with the development team on...

Senior PeopleSoft CRM Developer We are looking for an experienced PeopleSoft CRM Developer to design, develop, and support enterprise applications using PeopleSoft CRM and Oracle technologies. You will develop integrations, troubleshoot technical issues, and enhance PeopleSoft solutions while working in an Agile environment. Key Responsibilities: Develop and...

Sector: Telecommunications Employment Type: Contract Location: Belgium (Hybrid) As a Senior Data Quality Developer, you will play a key role in strengthening enterprise data quality across multiple business domains. You will develop robust data quality controls, support large-scale IT and migration projects, and implement automated reconciliation processes...

NextChain Solutions is seeking a Senior ServiceNow Consultant/Developer to design and implement ServiceNow solutions across ITSM and CSM in a Brussels/Antwerp hybrid setup. You will work with JavaScript, Flow Designer, UI Policies and integrations with REST/SOAP and Integration Hub. The role requires 4–5+ years of ServiceNow experience, strong ITSM/CSM...

Sector: Telecommunications Employment Type: Contract Location: Belgium (Hybrid) As a Senior Data Quality Developer, you will play a key role in strengthening enterprise data quality across multiple business domains. You will develop robust data quality controls, support large-scale IT and migration projects, and implement automated reconciliation...

NextChain Solutions is seeking a Senior ServiceNow Consultant/Developer to design and implement ServiceNow solutions across ITSM and CSM in a Brussels/Antwerp hybrid setup. You will work with JavaScript, Flow Designer, UI Policies and integrations with REST/SOAP and Integration Hub. The role requires 4–5+ years of ServiceNow experience, strong ITSM/CSM...

Description du poste Dans le cadre d’un projet de modernisation d’un système d’information critique, vous rejoindrez une équipe multidisciplinaire en charge de réduire la dépendance à une architecture mainframe et de migrer progressivement des données vers une architecture moderne et ouverte. Les solutions PHP et C jouent un rôle central dans...

Description du poste Dans le cadre de l’évolution d’une plateforme ServiceNow Enterprise Service Management (ESM), nous recherchons un(e) ServiceNow CSM Developer expérimenté(e) pour contribuer au développement et à l’implémentation de solutions au sein du module Customer Service Management (CSM). Vous rejoindrez une équipe composée d’un CSM...

Sector: Telecommunications Employment Type: Contract Location: Belgium (Hybrid) As a Senior Data Quality Developer, you will play a key role in strengthening enterprise data quality across multiple business domains. You will develop robust data quality controls, support large-scale IT and migration projects, and implement automated reconciliation processes...