Senior Full-Stack Headless Developer

Youwe is seeking a Senior Full-Stack Headless Developer to bridge design and backend systems, creating seamless, scalable applications for international clients. The role involves building front-end applications with React, Next.js, and TypeScript, developing integrations via REST APIs and GraphQL, and taking ownership of technical architecture. Candidates need 5+ years of commercial experience with modern React applications and strong knowledge of headless, API-first architectures.

On-siteFull-timeSeniorReactNext.js

Senior Full-Stack Headless Developer

Youwe is seeking a Senior Full-Stack Headless Developer to bridge design and backend systems, creating seamless, scalable applications for international clients. The role involves building front-end applications with React, Next.js, and TypeScript, developing integrations via REST APIs and GraphQL, and taking ownership of technical architecture. Candidates need 5+ years of commercial experience with modern React applications and strong knowledge of headless, API-first architectures.

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On-siteFull-timeSeniorReact

Salary

Not specified

Work Location

Groningen, Groningen, Netherlands, NL

Work Model

On-site

Experience Required

5 years

Employment Type

Full-time

Experience Level

Senior

Core Qualifications

Technical (Must-have)

ReactNext.jsTypeScriptNode.jsHTMLCSSJavaScriptREST APIsGraphQLHeadless ArchitectureAPI-first ArchitectureComposable ArchitectureWebhooksPerformance OptimizationSecurity

Soft Skills

CollaborationCommunicationProblem SolvingLeadershipMentoringClient-facing

Preferred Qualifications

Technical (Nice-to-have)

Event-driven SystemsAPI GatewaysSaaS IntegrationsHeadless PlatformsAccessibility StandardsARIAKeyboard NavigationWCAGMentoringTechnical Leadership

Key Responsibilities

•Build scalable and maintainable front-end applications using React, Next.js, and TypeScript
•Develop integrations with backend systems via REST APIs, GraphQL, and webhooks
•Work with API gateways and event-driven architectures
•Ensure applications are secure, high-performing, and composable by design
•Collaborate with designers to translate UI/UX concepts into technical reality
•Work together with backend engineers and SaaS partners on API contracts and integrations
•Take ownership of technical architecture and end-to-end project delivery
•Guide and mentor developers through technical leadership and code reviews
•Ensure accessibility, usability, and development best practices are applied throughout projects

SeniorFull-StackHeadlessReactNext.jsTypeScriptGraphQLDigital AgencyComposable ArchitectureNetherlands