E-Resourcing Belgium BV
Lead Developer
Skills
8 days ago
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Important information
Contract type:
Freelance / Contract
Location:
Brussels, Belgium
Work mode:
Onsite
Published on:
14 October 2026
What they need
We are looking for an experienced Senior Developer / Tech Lead. In this role, you will work on challenging projects using the latest technologies and serve as a key link in the development and optimization of our software products.
What will you be doing?
• You set the technical standard: you oversee code quality, conduct reviews, and provide technical coaching to developers.
• You translate business and domain requirements into clear technical analyses and specifications.
• You contribute to the development of a scalable business platform based on .NET and Azure.
• You work in an AI-native environment. Agents write, test, and refactor code, while you oversee the architecture, security, and quality of their output.
Essential knowledge and experience:
• Azure: Experience with Azure services and cloud-based infrastructures.
• .NET: Thorough knowledge of .NET and experience with application development.
• DevOps, Kubernetes & Docker: Experience with CI/CD pipelines, containerization, and implementing a DevOps culture.
• Angular: Knowledge of frontend development using Angular.
• AI coding tools: Experience with tools such as Claude Code and GitHub Copilot in real-world projects, and the ability to critically evaluate their output.
• Tech lead: Experience with code reviews, technical coaching, and technical analysis.
Desired additional technologies:
• Marten: Experience with Marten for event sourcing and managing document-oriented data in .NET.
• GraphQL: Experience with API design and optimization.
• PostgreSQL: Experience with document databases and SQL.
• RabbitMQ & MassTransit: Experience with message-based systems and event-driven architecture.
• Domain-Driven Design (DDD): Knowledge of and experience applying DDD principles to build scalable and well-structured applications.
• Elasticsearch: Experience implementing and using Elasticsearch for search functionality and data analysis.
• Certifications: AZ-204 and AZ-400 are a nice-to-have.
What are we looking for?
• Problem-solving skills: You have the drive and insight to solve complex problems quickly and efficiently.
• Resilience under pressure: You handle chaos and pressure well without losing focus.
• Proactive: You don’t wait around; instead, you think ahead and propose improvements.
• Eagerness to learn: You have a passion for technology and are committed to continuous self-development.
• Team player: You collaborate effectively with other developers but are also capable of working independently. You enjoy sharing knowledge and helping to elevate the team’s technical capabilities.
• Languages: Dutch (must have), English & French (nice to have)
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