Skillfield

Backend Integration Engineer

Skillfield

contract

Posted on:

Location Type: Hybrid

Location: Melbourne • Australia

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Tech Stack

AWSCloudDynamoDBJavaScriptMicroservicesNode.jsPostgresTypeScript

About the role

  • Design, build, and maintain scalable microservices supporting core application domains including events, calendars, synchronisation, audit logging, and chat orchestration
  • Define and maintain versioned, mobile-first API contracts that support idempotent writes, delta synchronisation, and offline-friendly workflows
  • Lead backend integration efforts during the migration from a web portal to a native mobile application, ensuring smooth client transitions and backward compatibility
  • Implement authentication and authorisation middleware, including Okta token validation, OAuth2/OIDC flows, JWT handling, and role-based access controls
  • Build reliable synchronisation and audit pipelines with strong traceability, retry mechanisms, and error handling
  • Support high service reliability through monitoring, structured logging, alerting, and incident response
  • Own CI/CD pipelines and deployment automation to enable safe, repeatable, and observable releases
  • Collaborate with frontend and mobile teams to align API design with real-world client needs and performance considerations

Requirements

  • Strong backend development experience using Node.js and TypeScript
  • Experience with backend frameworks such as NestJS and/or Express
  • Solid understanding of RESTful API design, OpenAPI specifications, and versioning strategies
  • Experience with security and identity patterns including OAuth2, OpenID Connect, JWT, and Okta integrations
  • Hands-on experience with data stores such as PostgreSQL and DynamoDB (or equivalent technologies)
  • Experience working in cloud environments, particularly AWS (API Gateway, ECS and/or Lambda, CloudWatch)
  • Familiarity with CI/CD pipelines, infrastructure-aware service design, and observability best practices
Benefits
  • Flexible work arrangements
  • Professional development
  • Performance-based recognition
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Node.jsTypeScriptNestJSExpressRESTful API designOpenAPI specificationsOAuth2OpenID ConnectJWTPostgreSQL
Soft Skills
leadershipcollaborationcommunication