Senior GraphQL API Developer for Customer-Facing Microservices Deployment

Silverline Labs

Contract · Remote · Flexible hours

About the role

Silverline Labs is expanding a multi‑tenant B2B platform and needs a GraphQL API Developer to deliver new tenant‑specific features. You will work closely with product and UI teams to translate business needs into robust, scalable APIs.

Key responsibilities

• Design and implement GraphQL schemas and resolvers for multi‑tenant isolation
• Integrate GraphQL layer with existing NodeJS services and REST endpoints
• Write automated tests and ensure high code coverage
• Collaborate on performance tuning and monitoring for tenant workloads
• Document API contracts and usage guidelines for internal developers

Must-have skills

• Strong experience building GraphQL APIs in production
• Proficiency with NodeJS and modern JavaScript/TypeScript
• Understanding of multi‑tenant architecture patterns
• Ability to work with REST APIs and translate them to GraphQL
• Familiarity with version control and CI pipelines

Nice to have

• Experience with Apollo Server or similar GraphQL tooling
• Knowledge of React integration for client‑side data fetching
• Background in B2B SaaS product development