Full Stack Engineer

Full-Stack Web Developer (Next.js / .NET Core) – 4-Day Week, Equity, Climate TechLocation: Sydney (Remote-first, occasional CBD catchups)

Salary: $600-650/day incl. super (4 days/week) + Equity for the right candidate

Start: ASAP

Certscape is a funded decarbonisation B2B SaaS startup helping renewable gas, fuel, and material projects certify their emissions intensity. Our platform is already in use across Australia and expanding to the UK. Now, we’re building the next big product addition to the platform and we want you to help lead it.

We’re looking for a full-stack developer who wants to move fast, own meaningful features, and care about the impact of their code.

What You’ll Do

• Build, test, and deploy a greenfield product using Next.js, .NET Core, and Azure
• Own core features across frontend, backend, and infra from MVP to scale
• Work directly with founders and direct customer feedback to ship what actually matters

You’ll Thrive If You…

• Have 5+ years building full-stack features
• Know React (Next.js) inside-out and are comfortable in a modern .NET Core backend (or similar)
• Value clean, scalable, testable code but don’t get stuck chasing perfection
• Have startup energy. You're self-motivated, comfortable with ambiguity, and have entrepreneurial spirit
• Are constantly improving your workflow such as using AI tooling to code faster and smarter
• Bonus: you've shipped personal projects or worked at early-stage startups before

Why Certscape

• Real-world impact – we're building software that helps renewable projects get funded faster
• Incredible team – you won’t be a cog in the machine. You’ll be part of a small, mission-aligned team building something that matters. We don't take ourselves too seriously but we love to get things done.
• Actual agility – no ticket ping-pong or pointless process
• Greenfield – this is a new product on top of a working platform with real customers from day one
• Great setup and perks – brand new M4 Max MacBook Pro and flexible hours. We're an outcome-based company, go hard with us on your 4 day work week then take the long weekend you deserve every week.
• Equity – we offer meaningful ownership through our ESOP
• Competitive salary – Most candidates will start at $600/day, but we’ll stretch to $650/day for someone exceptional.

Unfortunately we can't provide visa sponsorship – Australian residents only

Apply now or message us to learn more!