Senior Technical Lead – Next.js & Sitecore

Our client, a leading organization focused on customer experience solutions, is seeking a Senior Technical Lead to own the software architecture of their delivery project. This role concentrates on maintaining codebase integrity and guiding the development team to ensure high-quality, scalable, and secure implementations.

• Own the software architecture and manage technical debt within a running delivery context.
• Guard codebase integrity by maximizing reuse and maintaining modularity.
• Detail high-level solutions into executable designs for development and infrastructure teams.
• Enforce security and performance standards through quality gates and static analysis.
• Shape user stories and manage technical dependencies to ensure smooth sprint delivery.
• Establish and improve CI/CD pipelines, test automation, and monitoring tools.
• Coach developers through code reviews and technical walkthroughs to elevate team skills.

• 8+ years of experience in software engineering, with at least 3 years in a leadership role such as Tech Lead or Solution Designer.
• You have production experience with Next.js, React, and TypeScript across multiple projects.
• You possess production experience with Sitecore in a headless setup.
• You bring working knowledge of backend services using .NET 8 or higher.
• You have experience with Azure hosting and managing CI/CD pipelines.
• You're able to shape technical requirements and manage project dependencies.
• You have experience coaching teams through code reviews and knowledge sharing.
• You are proficient in English with a C1 level.

Nice to Haves

• Experience with XM Cloud, Headless Services, JSS, or Content SDK.
• Working knowledge of Experience Edge in production.

• Start date: 19/10/2026.
• Duration: Until 31/08/2028.
• Work regime: Full-time.
• Location: Brussels.
• Working model: Hybrid (minimum 2 days per week onsite).
• Contract: open to both permanent employees and freelancers.