Senior Web Developer — Headless E‑commerce Platform Lead

Haltech; Sydney; On-site; AUD 140,000 - 200,000; Full time

Job summary

Haltech is seeking a Senior Web Developer to lead the build, launch and ongoing development of a new commerce platform in Sydney. You will drive the migration from WooCommerce to a headless BigCommerce Catalyst setup, integrating NetSuite and UnoPIM, and mentoring a distributed development team.

The role requires strong expertise in TypeScript, React, Next.js, Node.js, and AWS event-driven architectures, plus experience with CI/CD, testing and ERP/PIM integrations.

Qualifications

• At least 5 years' commercial web development experience, including senior or lead responsibility.
• Strong production experience with TypeScript, React, Next.js and Node.js.
• Experience with GraphQL and REST API design, webhooks and third-party API integration.
• Experience building system integrations between ecommerce, ERP and PIM platforms.
• Knowledge of event-driven architecture on AWS (SQS, SNS, EventBridge, Lambda).
• Experience with Docker, CI/CD pipelines and automated testing (Jest, Playwright).
• Ability to write and optimise SQL (MySQL/PostgreSQL), and working knowledge of PHP/Laravel.
• Experience with Git (Bitbucket/GitHub), pull-request review and release management.
• Strong problem-solving, documentation and communication skills.

Responsibilities

• Develop and deliver the BigCommerce Catalyst (Next.js) storefront, D2C first, then B2B.
• Maintain and extend the in-house fork of the BigCommerce B2B Edition Buyer Portal, including merges from upstream releases.
• Design, build and support event flows on the AWS message bus between BigCommerce, NetSuite and UnoPIM.
• Extend and maintain the UnoPIM to BigCommerce catalogue connector.
• Implement webstore event processing in NetSuite, in line with the agreed system of record for inventory, price and product content.
• Develop year/make/model fitment search for ECUs, dash displays and engine components.
• Integrate and support Stripe, Avalara, Klaviyo, Cloudflare and Microsoft Entra External ID.
• Plan and run the migration from WooCommerce, including data migration, SEO and URL redirects.
• Write and review code to Haltech engineering standards: Docker, Jenkins CI/CD, Git, automated testing and SBOM.
• Run functional, load and end-to-end tests, and fix production defects.
• Work with designers on UI/UX, accessibility, mobile responsiveness and site performance.
• Mentor junior and offshore web developers, and document systems, integrations and technical decisions.

Skills

TypeScript

React

Next.js

Node.js

GraphQL

REST APIs

CI/CD

Automated testing

SQL

PHP

Git

Documentation

AWS

Docker

Jenkins

Jest/Playwright

Tools

BigCommerce

Jenkins CI/CD

Docker

Git

Bitbucket/GitHub

NetSuite

PIM

Job description

Haltech is seeking a Senior Web Developer to lead the build, launch and ongoing development of a new commerce platform in Sydney. You will drive the migration from WooCommerce to a headless BigCommerce Catalyst setup, integrating NetSuite and UnoPIM, and mentoring a distributed development team.

The role requires strong expertise in TypeScript, React, Next.js, Node.js, and AWS event-driven architectures, plus experience with CI/CD, testing and ERP/PIM integrations.