REST API Developer – End-to-End API Design

LumenWorks

Contract · Remote · Flexible hours

About the role

LumenWorks is preparing a critical product launch and needs a REST API Developer to uplift test automation. You will design and extend automated test suites that validate API contracts, data integrity, and performance before each release. The work focuses on reducing regression risk and ensuring confidence in production deployments.

Key responsibilities

• Develop robust automated tests for existing and new REST endpoints using NodeJS
• Integrate test pipelines into CI/CD workflows and monitor results
• Collaborate with QA and product teams to define test scenarios and acceptance criteria
• Maintain test data in PostgreSQL and ensure test isolation
• Document test frameworks and provide knowledge transfer to internal teams

Must-have skills

• Strong experience building and maintaining REST APIs
• Proficiency in NodeJS and JavaScript for test scripting
• Hands‑on knowledge of PostgreSQL schema design and queries
• Familiarity with test automation tools (e.g., Mocha, Jest, SuperTest)
• Ability to work independently in a remote, fast‑paced environment

Nice to have

• Experience with Docker containers for test environments
• Understanding of performance testing for APIs
• Prior work on CI/CD integration using GitHub Actions or similar