Senior Outsystems developer
il y a 3 jours
Feelance Developer OUTSYSTEMS Brussels, Hybrid-3-month renewable contract Mission As a Senior OutSystems Developer, you play a key role in the design, development, and evolution of applications built on the OutSystems platform. You are involved throughout the entire application lifecycle, from technical analysis to production deployment and ongoing maintenance. You are able to understand complex functional and technical analyses (UML, BPMN, data models), propose robust and scalable technical solutions, and ensure the overall quality of applications (performance, security, maintainability). As a senior profile, you act as a technical reference within the team: you share OutSystems best practices, support junior developers, contribute to architectural decisions, and actively participate in the continuous improvement of development processes and standards: Design, develop, and maintain applications using Outsystems Participate in the analysis of functional and technical requirements Design, develop, and maintain applications using Outsystems Participate in the analysis of functional and technical requirements Propose appropriate technical solutions (architecture, performance, security) Develop APIs , web applications, desktop applications, or backend services Follow best development practices (SOLID principles, clean code, design patterns) Build and maintain a robust and scalable architecture Write testable, maintainable, and well-documented code Implement unit and integration test Solving issues Troubleshoot and fix bugs and production issues Refactor and improve existing applications Perform application monitoring and performance tuning Manage application lifecycle across environments (dev, test, prod) Profile: 5+ years’ experience in application development, with the OutSystems platform. OutSystems platform (Service Studio, LifeTime, architecture, performance tuning, security). excellent knowledge of relational databases (SQL Server or equivalent). solid experience with integrations (REST/SOAP, APIs, third‑party systems). comfortable with both Frontend development (Reactive Web Apps, UX/UI) and Backend development. Experience with complex environments, application redesign, or migrations is an asset. You apply Agile/Scrum principles and actively contribute to team rituals. You pay close attention to code quality, testing, versioning, and deployment processes. French and/Or Dutch fluent (C2) + good English (B2)
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Senior Dotnet Developer
il y a 3 jours
Laeken, Belgique Satellit Temps pleinSenior .Net Developer Job Overview Seeking a senior software developer to contribute hands-on to a cloud-based trading system transformation, progressively assuming technical lead and release management responsibilities within a high-availability, business-critical platform." Key Responsibilities Lead technical architecture evolution, including migration to...
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Senior Developer
il y a 4 semaines
Laeken, Belgique Atos Temps pleinSenior Developer – Platform Engineering Self Employed position- 1 year initial contract plus extensions Ideal start date: March 2026 Hybrid Brussels Role Overview We are seeking a Senior Developer to design, build, and operate key components of a secure and scalable enterprise-grade platform. You will work within the Platform Engineering team to deliver...
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Senior Shopify Developer
il y a 3 jours
Laeken, Belgique DigiFist Temps pleinDigiFist is a Shopify Premier Partner and a high-level Shopify agency trusted by brands such as The Body Shop, L'Occitane, FAE and more. We are also an official Shopify Theme Store Partner, with top-selling themes used by merchants worldwide. We're looking for a Senior Shopify Developer who can build fast, clean, scalable Shopify experiences - and who takes...
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Senior Java Developer
il y a 3 jours
Laeken, Belgique TEC Temps pleinVacature: Senior Java Developer Wij zoeken een ervaren Java Developer die complexe backend-systemen bouwt en integreert in een moderne, cloud-native omgeving. Je werkt aan schaalbare oplossingen met focus op performance, betrouwbaarheid en integratie. Functie-eisen Jouw technische stack: Java Spring Boot GraphQL Apache Kafka REST API en SOAP services...
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Senior ServiceNow Developer
il y a 5 jours
Laeken, Belgique Capture Group Temps pleinSenior ServiceNow Developer — B2B Contractor (Enterprise Platform) We are looking for a Senior ServiceNow Developer (B2B Contractor) to support a long-term, enterprise-scale ServiceNow program delivered in a managed services model. The role involves real technical ownership and collaboration in an international environment. Scope of work Design and develop...
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Senior.Net Developer
il y a 3 jours
Laeken, Belgique Sander Temps pleinSenior .Net Developer | FinTech Notre partenaire, situé dans la région bruxelloise, recherche un Senior .Net Developer pour renforcer son équipe. Senior .Net Developer | L’entreprise : Notre partenaire est une tech company développant des logiciels pour le monde financier. Avec plus de 30 ans d’expertise, elle se positionne comme leader. Cette...
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Senior.Net Developer
il y a 5 jours
Laeken, Belgique Sander Temps pleinSenior .Net Developer | FinTech Notre partenaire, situé dans la région bruxelloise, recherche un Senior .Net Developer pour renforcer son équipe. Senior .Net Developer | L'entreprise : Notre partenaire est une tech company développant des logiciels pour le monde financier. Avec plus de 30 ans d'expertise, elle se positionne comme leader. Cette entreprise...
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Senior Java Developer
il y a 3 jours
Laeken, Belgique Aubay Belgium Temps pleinSenior Java Developer (Secteur Public) JAVA/Developer/ACM/Spring/Alfresco/Drools/PrimeFaces/Web Services La mission: Dans le cadre du développement et de la modernisation des services numériques, le Senior Java Developer contribue à la conception, à la réalisation et à l’évolution des applications soutenant les missions de service public. Il assure...
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Senior Java Developer
il y a 5 jours
Laeken, Belgique Aubay Belgium Temps pleinSenior Java Developer (Secteur Public) JAVA/Developer/ACM/Spring/Alfresco/Drools/PrimeFaces/Web Services La mission: Dans le cadre du développement et de la modernisation des services numériques, le Senior Java Developer contribue à la conception, à la réalisation et à l'évolution des applications soutenant les missions de service public. Il assure le...
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Medior/Senior ColdFusion Developer
il y a 15 heures
Laeken, Belgique We Are North Temps pleinGEZOCHT: Medior/Senior ColdFusion Developer (met een hart voor AI, AWS & Lego) Recruiter-alert: Bespaar je de moeite. Wij bouwen ons team liever zelf op en werken niet met bureaus of tussenpersonen. Echt niet. Bouw jij mee aan het CFML-ecosysteem van morgen? Bij We Are North zien we ColdFusion niet als legacy, maar als een krachtige motor voor innovatie. Wij...
