Senior GraphQL API Developer – Service Reliability Rollout

Keystone Digital

Contract · Remote · Flexible hours

About the role

Keystone Digital is modernizing a legacy production platform that must stay live 24/7. We need a GraphQL API Developer to design and implement a new API layer that coexists with existing services while delivering zero‑downtime migrations.

Key responsibilities

• Architect and build a GraphQL gateway that aggregates legacy REST endpoints
• Write resolvers in NodeJS, ensuring type safety and performance
• Collaborate with frontend teams to expose React‑friendly schemas
• Implement automated testing and monitoring for seamless rollouts
• Document migration paths and support the ops crew during cut‑over

Must-have skills

• Proven experience building production GraphQL services
• Strong NodeJS development background
• Deep understanding of REST API integration patterns
• Ability to work with React consumers and define schema contracts

Nice to have

• Experience with zero‑downtime deployment strategies
• Familiarity with container orchestration (Docker/Kubernetes)
• Knowledge of CI/CD pipelines for API services