Lead Node.js Developer (Ref 26243)

Jobline; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading tech company in Singapore is seeking an experienced backend developer to deliver features and build APIs using AWS Lambda and Node.js. The ideal candidate has over 6 years of backend experience and a strong foundation in AWS architecture, along with excellent communication skills. This role promotes collaboration in an Agile environment, ensuring high-quality deliverables.

Qualifications

• At least 6 years of experience in backend development.
• 2 years of hands-on experience with Node.js and AWS Lambda.
• Experience with event-driven design and OAuth/OIDC authentication.

Responsibilities

• Deliver features by building APIs and backend services.
• Review user stories for technical feasibility.
• Participate in code reviews and maintain coding standards.
• Collaborate on CI/CD processes for safe releases.

Skills

AWS

Lambda

Node.js

Git

Debugging skills

API testing

Agile methodology

Education

Bachelor’s degree in a relevant field

Tools

Redis

Jest

Mocha

Job description

Responsibilities

• Deliver features end-to-end, build APIs, Lambda functions, and backend services from user stories and technical designs.
• Review requirements and user stories for technical feasibility, scope and risk. Propose pragmatic alternatives when needed.
• Investigate issues, perform root-cause analysis and implement resilient fixes with tests.
• Quality first, write clean and testable code; add unit/integration tests, ensure accessibility (WCAG), performance and security best practices.
• Participate in code reviews, maintain coding standards, and improve the component library.
• Partner with BA, refine acceptance criteria, clarify edge cases and ensure business value is met.
• Agile way of working, contribute to backlog grooming, daily stand-ups, and retrospectives; provide accurate estimates.
• Collaborate on CI/CD, Feature flags, and observability for safe frequent release.

Requirements

• At least 6 Years of Relevant Experience required in relevant area.
• Must have skills: AWS, Lambda, Node.js.
• Minimum a Bachelor’s degree in a relevant of study.
• Minimum 4 years of total backend experience and 2 years hands‑on Node.js/ AWS lambda development experience.
• AWS experience, having built applications on AWS architecture (e.g., Lambda, API Gateway, S3, DynamoDB/RDS, CloudWatch).
• Experience with AWS Lambda development (handlers, layers, cold‑start awareness, IaC packaging/deploy).
• Experience with event‑driven design (idempotency keys, DLQs, retries with backoff).
• Hands on experience on Caching layers (Redis).
• Experience in regulated audit trails, data retention, PII handling.
• Hands on experience with OAuth & OIDC authentications, token handling (authorization code flow, ID token validation, refresh token rotation).
• Familiarity with testing (Jest, Mocha, or similar) and API/integration testing.
• Comfort with Git workflows and pull‑request reviews.
• Knowledge in authentication/authorization (Cognito, OAuth/OIDC, JWT) and OWASP practices.
• Knowledge in Agile Methodology or Scrum process will be an advantage.
• Strong debugging skills and a structured approach to problem solving.
• Practical experience with Git, branching strategies, and code reviews.
• Excellence system design skills (latency, throughput, cost).
• Clear, proactive communication and the ability to work closely with Business Analysts and stakeholders.