REST API Developer for Customer-Facing Third-Party Integrations

Silverline Labs

Contract · Part-time · Remote · Flexible hours

About the role

We are preparing a major app store launch and need a REST API Developer to bridge our mobile front‑end with backend services. You will craft clean, scalable endpoints that power real‑time features and ensure seamless data flow.

Key responsibilities

• Design and implement RESTful APIs using NodeJS
• Optimize PostgreSQL queries for low‑latency mobile interactions
• Collaborate with mobile engineers to align data contracts
• Write unit and integration tests for API reliability
• Document endpoints and versioning strategy

Must-have skills

• Proficient in building REST APIs with NodeJS
• Strong JavaScript fundamentals
• Hands‑on experience with PostgreSQL schema design
• Understanding of mobile‑backend synchronization patterns

Nice to have

• Familiarity with API gateway or GraphQL
• Experience in CI/CD pipelines for Node services