Senior Product Engineer

SustainAbility Consulting; Sydney; On-site; AUD 120,000 - 180,000; Full time

Job summary

SustainAbility Consulting in Sydney is seeking curious, technically adept generalists to take ideas to shipped products. You will work directly with ops, sales and product to understand problems, write the spec and code, and guide AI to implement it.

As part of an AI-native engineering team, you'll own outcomes, ship frequently, and make product calls while balancing speed, quality and complexity. The stack includes React, TypeScript, Python and AWS, with production-grade code you and other

Qualifications

• Generalist capable across product thinking, systems design, user research and operations.
• Able to translate business problems into technical solutions.
• End-to-end ownership of features from concept to production and iteration.

Responsibilities

• Own outcomes, not tickets – turn business problems into scalable systems.
• Ship product, not design docs – release frequently and iterate on real usage.
• Make the product calls – scope what to build, sequence work, balance speed, quality and complexity.
• Write code that lasts – production-grade code in React/TypeScript/Python on AWS.

Skills

Generalist

Product thinking

Systems design

User research

Ops

Clear communicator

Tools

React

TypeScript

Python

AWS

Job description

About the Role

We're hiring builders - curious, technical generalists who think across disciplines and can take something from idea to shipped product.

There's no handoff here between "product" and "engineering." You'll talk directly to ops, sales and product to understand the real business problem, then build it, ship it, and iterate. Nobody hands you a spec — you write the spec and the code, directing AI to handle the implementation by default.

Key Responsibilities

• Own outcomes, not tickets - turn business problems into working, scalable systems
• Ship product, not design docs - release frequently and iterate on real usage
• Make the product calls - scope what to build (and what not to), sequence work, and balance speed, quality and complexity, working directly with the people who use what you ship
• Write code that lasts - stack is React, TypeScript, Python and AWS; production-grade code other engineers can build on, not throwaway prototypes
• Direct AI to build - this is an AI-native engineering team, using agent-first workflows to ship at a pace that isn't possible manually; the bottleneck is judgement, not implementation
• Prioritise with the team - you'll move fast and own product decisions, while working with the team to keep that speed pointed at the right commercial goals

What You'll Bring

• A genuine generalist, not a narrow specialist - you move naturally across product thinking, systems design, user research and ops, because you wanted to understand the whole problem
• Strong product instinct - you ask "should we build this?" before "how do we build this?", and can turn a non-technical stakeholder's pain point into the right technical solution
• End-to-end ownership - you've shipped features or systems you were fully responsible for, from problem definition through to production and iteration, building plenty from scratch
• Strong technical fundamentals - clean, maintainable code, solid systems design, pragmatic architecture decisions
• Comfort with ambiguity - this is a small team at a growth-stage fintech, requirements are often fuzzy, and that energises rather than stalls you
• Clear communicator - you write well, and can explain a technical trade-off to a founder as easily as a product decision to an engineer