NodeJS Build Lead (Ref JD26240)

Jobline; Novena; On-site; NOK 1,000,000 - 1,250,000; Full time

Job summary

A technology recruitment company based in Norway is seeking a skilled Backend Developer with robust experience in AWS and Node.js. You will design and implement backend services, ensuring high reliability and performance while leading a team of engineers through best practices in coding and architecture. The ideal candidate has at least 6 years of backend experience, with a strong focus on event-driven design and AWS Lambda development. This position offers a 1-year agency contract employment.

Qualifications

• 6 years of experience in backend development.
• Minimum 4 years of total backend experience.
• 2 years of hands-on Node.js/AWS Lambda development experience.

Responsibilities

• Own the design, implementation, and operation of backend services running on AWS.
• Architect secure, scalable APIs and event-driven workloads.
• Set engineering standards and lead a team of engineers.

Skills

AWS

Lambda

Node.js

Backend development

Event-driven design

Debugging skills

Git workflows

Education

Bachelor in Computer Science

Tools

Redis

Jest

Mocha

Job description

Responsibilities

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

• Bachelor in Computer Science with 6 years experience
• Must have skills: AWS, Lambda, Node.js
• 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).

Shortlisted candidates will be offered a 1 Year agency contract employment.