Application Support Engineer – JavaScript & API

IT & Telecomms > Help Desk / Support

Sydney

Fixed Term Contract

$ 104,000 per Year

AU

  • 🌏 Global Top-Tier Enterprise SaaS Platform

  • Deep-dive into JavaScript, REST APIs & SQL to solve enterprise-level issues

  • Hybrid WFH & WFO - Sydney CBD - Initial 12 Month Contract

Job Description

This is a role for a true technical detective – someone who thrives on debugging failed API integrations, tracing issues through JavaScript code, and finding the root cause in application logs.

Step into a high-impact role where you will be a key technical specialist within the L2 support team, responsible for solving the most complex integration escalations for global enterprise customers.

This is not a standard helpdesk position; you will be expected to perform deep, code-level technical analysis and act as the crucial bridge between clients and backend engineering teams.

What you’ll be doing:

  • Owning and resolving complex, high-priority integration escalations for global enterprise customers.
  • Troubleshooting inbound/outbound data flows, authentication issues, and API connection failures by analysing logs, database records, and application code.
  • Driving technical bridge calls and clearly communicating your root-cause analysis to both non-technical and technical stakeholders.
  • Partnering directly with product and development teams to champion continuous product improvements.

What you’ll bring to the team:

  • Deep, hands-on ability to read, debug, and troubleshoot JavaScript code to find the root cause of application failures. This is our most critical requirement.
  • Proven experience in an Application Support or Software Development role where you were responsible for fixing production issues.
  • Strong experience troubleshooting REST APIs (analysing JSON payloads, checking status codes) and writing complex SQL queries.
  • Demonstrable experience in at least one of the following: Authentication/SSO, enterprise Email Infrastructure, or ETL/Data Migration.
  • A customer-first mindset with the ability to remain incredibly structured and calm under pressure.

What else is offered:

  • An initial 12-month contract with strong potential for extension or conversion to permanent.
  • Deep, hands-on exposure to an AI-driven platform that is actively shaping the future of digital workflows.
  • A hybrid working environment based in the Sydney CBD, Monday to Friday roster. 

What’s next:
Ready to join a global tech leader and put your deep debugging skills to the test? We want to hear from you – Apply Now!

Apply for this job


Scroll to Top