Job Description

ABOUT THE COMPANY

Zenith Infotech (S) Pte Ltd. was started in 1997, primarily with the vision of offering state-of-the-art IT Professionals and solutions to various organizations and thereby helping them increase their productivity and competitiveness. From deployment of one person to formation of whole IT teams, Zenith Infotech has helped clients with their staff augmentation needs. Zenith offers opportunity to be engaged in long term projects with large IT savvy companies, Consulting organizations, System Integrators, Government, and MNCs.

EA 20S0237

Industry

62011 - Development of software and applications (except games and cybersecurity)

About this opportunity :

As the Lead Node.js developer, you will own the design, implementation and operation of backend services running on AWS. You'll architect secure, scalable APIs and event-driven workloads on platforms such as AWS Lambda, API Gateway, Secrets Manager, SQS / SNS / EventBridge, ensuring reliability, performance and compliance.





You will be expecting to set engineering standards, establish observability (logs/metrics/traces) and lead a team of engineers through design reviews, code reviews, and incident response.





Strong technical leadership and stakeholder communication are essential to guide delivery from requirements to production readiness in a regulated environment.

Job 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.

Qualifications:

6 Years of Relevant Experience Required: 6 years at least 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. Solid understanding of TypeScript or JavaScript, async patterns, and error 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