Senior Fullstack Engineer

Team: Cloud

Location: Sydney

Commitment: Full-time Permanent

Workplace Type: hybrid

Key Responsibilities

Design and build product features end-to-end across frontend, backend, and mobile, with a lean towards frontend and React Native

Make fast, pragmatic trade-off decisions about when to integrate with existing platform systems versus building independently

Navigate dependencies with platform teams — knowing when to contribute to shared infrastructure versus shipping what the team needs now

Partner closely with a principal engineer and cross-functional teammates to explore requirements, pressure-test technical approaches, and iterate quickly

Build AI-native features as the product matures, contributing to platform capabilities the broader engineering organisation can build on

Communicate trade-offs and constraints clearly so expectations stay grounded in engineering reality

Contribute to code review and help raise the technical bar through direct, collaborative engagement with peers

Required Skills & Experience

Technical Skills

Strong frontend engineering capability with solid React experience; React Native experience is a strong advantage

Comfortable with backend development in TypeScript or Go — Go experience is a bonus, and the right person will pick it up with support

Experience building in product-focused, fast-iteration environments — ideally in a SaaS startup or scale-up

Able to build new applications while navigating and integrating with existing systems — comfortable working outside of greenfield environments

Actively uses agentic coding tools as a core part of how you work, not just occasionally

Product-minded: able to co-own direction with a product manager, make sensible scope calls, and understand the "why" behind what's being built

Behavioural Skills

Comfortable with ambiguity — picks up loosely defined requirements and drives towards a solution without waiting for a perfect brief

Assertive and direct: able to push back constructively, frame trade-offs clearly, and have honest conversations up and across the team

Fast and decisive: makes calls, ships, and course-corrects rather than over-engineering before moving

Collaborative without being passive — seeks to understand existing systems, debates trade-offs with peers, and lands on better outcomes together

Self-directed and hungry: identifies what needs doing and goes after it without close management

AI Skills

Uses agentic coding tools (such as Claude or similar) as a primary part of the development workflow

Able to prompt effectively, evaluate AI-generated code for quality and logical soundness, and apply human judgement where it matters

Curious about building AI-native product features and how AI is changing what's worth building

Success Looks Like

At 3 months: shipped meaningful features, made sound integration trade-offs, and built a strong working relationship with your principal engineer and team

Makes technical calls independently and confidently — escalates with options and trade-offs, not just problems

Keeps iteration cycles fast by unblocking independently and flagging real blockers early

At 6 months: features are in customers' hands, performing well, and you've contributed to how the team works — not just what it delivers

More than a job

Equity with high growth potential, and a competitive salary
Flexible working arrangements
Access to professional and personal training and development opportunities
Hackathons, Workshops, Lunch & Learns
In-house Culinary Crew serving up daily breakfast, lunch and snacks
Barista coffee machine, craft beer on tap, boutique wines and a range of non-alcoholic beverages
Wellbeing initiatives such as subsidised fitness programs, EAP services and generous parental leave policy
Quarterly celebrations and team events
On-site gym, table tennis, board games, books library, and pet-friendly offices