Job title: AI Full Stack Engineer
Job type: Permanent
Emp type: Full-time
Job published: 27-02-2026
Job ID: 64425

Job Description

Not Your Typical Engineering Role

This isn’t about shipping features for the sake of it. This is about shaping how AI powers a platform used by over a million people globally systems that are operationally serious, ethically guided, and scaling fast.

You’ll work alongside a team of ~40 world-class engineers, recently strengthened by senior talent from top-performing product and scale-up environments. The technical bar has never been higher, and the culture is defined by:

  • Technical excellence

  • Clear system design thinking

  • High ownership and accountability

  • Fast iteration and calibration

  • Customer-first decision making

You’ll report to a senior engineering leader who also oversees AI and platform strategy. Expect real architectural discussions, not surface-level decisions.

The company is now AI-first, investing heavily in responsible, human-guided AI to tackle real-world, non-clinical health and safety challenges. And this is just the beginning, the AI layer is becoming core to the platform experience.

The Problem You’ll Own

The platform is at a pivotal point:

  • Two fully scaled systems, front-end and back-end, need to evolve together without slowing down.

  • AI-driven services, from predictive triage to intelligent automation are now central to how the platform delivers impact.

  • Every architectural choice you make today will shape how millions of people get help tomorrow.

The Work You’ll Lead

  • Build and scale features across front-end and back-end, integrating AI thoughtfully.

  • Prototype, experiment, and ship AI/ML capabilities that genuinely improve outcomes.

  • Influence system design and architecture for reliability, performance, and scale.

  • Mentor peers and elevate engineering standards across the team.

  • Extra credibility: showcasing outside projects, open-source contributions, or personal AI work is highly regarded.

The Profile That Excels

  • 4+ years full-stack experience (React/Angular/Vue + Node.js/Python/Java)

  • Hands-on AI/ML experience (TensorFlow, PyTorch, OpenAI, Hugging Face, LangChain)

  • Cloud-native expertise (AWS/GCP/Azure) and modern CI/CD practices

  • Comfortable designing scalable APIs (REST/GraphQL) and distributed systems

  • Thrives in high-bar, high-accountability environments

Why This Role Stands Out

  • You see the real impact of your work on people’s lives.

  • You’ll get architectural ownership over a platform at global scale.

  • You’ll collaborate with engineers from top product-led companies.

  • Flexible hybrid work, ESOP, wellbeing support, and study leave.

This role isn’t about tickets. It’s for engineers who want to own the technical direction of AI in a high-impact platform. If that’s you, let’s talk, the next three to five years of your career could be defined here.

Dani - danielle@theonset.com.au