Senior Fullstack Engineer (f/m/d) - Berlin I Germany, EMEA I Remote

Role overview

Senior Fullstack Engineer working at the intersection of engineering and product to help users build with Hygraph. You’ll ship customer-driven features, evolve the core GraphQL-native CMS, extend platform capabilities, and bring AI-powered features to life—without waiting for perfect specs.

Responsibilities

• Develop and evolve the GraphQL-native CMS: improve performance, reliability, and developer experience.
• Build and maintain CMS extensions and integrations.
• Contribute to the AI roadmap by implementing intelligent product capabilities.
• Proactively improve customer-facing outcomes using monitoring data and customer feedback.
• Work in a cross-functional autonomous team: deliver from rough prototypes/early concepts.
• Translate business needs into technical solutions with Product; occasionally join customer conversations.
• Make and support architectural decisions for scalability, reliability, and maintainability.
• Use and benefit from AI-assisted development tools to accelerate delivery.
• Drive issue resolution end-to-end using observability data.
• Share knowledge and help teammates grow.

Expectations timeline

• 1 month: onboarding, meet the team/company, learn the codebase, ship first contributions.
• 3 months: deliver production features/improvements confidently; deepen understanding of product and architecture.
• 6 months: make significant product/team contributions; raise the bar on performance and how the team works.

Requirements

• 6+ years experience owning production systems with strong full-stack skills in JavaScript/TypeScript and deep backend expertise.
• Node.js preferred.
• UI experience, ideally React.
• API development experience with GraphQL.
• Relational database knowledge, especially PostgreSQL (schema design, query optimization).
• Active use of AI-assisted development tools (e.g., Claude, Cursor, Codex).
• Cloud-native familiarity: AWS and/or GCP.
• Monitoring/observability experience (New Relic mentioned in the posting, truncated).

Nice-to-haves (implied)

• Experience building scalable, reliable, and maintainable architectures in a collaborative product engineering environment.
• Comfort participating in customer conversations to validate outcomes.