- At coreflow, we're redefining entertainment with AI. We're one of the fastest-growing startups globally, serving 20 million users in our first year . We’re an in-person company based in Sydney, Australia.
- We’re guided by a set of principles that are foundational to our work and drive every decision:
- User-first: We build things that people want. We invest time to understand our users and focus on adding value instead of extracting value.
- High agency, high ownership: We’re responsible for the pieces we own, end-to-end. We own every mistake, figure out what went wrong, and fix it. We don’t blame anyone or anything else.
- Urgency: This is a once-in-a-lifetime prospect. We prioritize well, find ways to increase leverage, and move at an inspirational pace.

What you'll do

- You’ll be one of our early engineers, owning core product and infrastructure decisions as we scale to hundreds of millions of users.
- Ship real-time AI video calls from scratch with <200ms latency within 1 week.
- Orchestrate hundreds of GPUs to serve millions of image generations per day.




- Test and productionize LoRAs and our in-house models to serve 10s of millions of users.

What you'll bring

- 5+ years of experience building software at scale.
- Familiarity with our tech stack: TypeScript, Next.js, React, TailwindCSS, tRPC, Postgres, Temporal, AWS.
- The ability to get shit done end-to-end . From understanding users → proposing an idea → implementation → iteration.
- Hunger to win. This is not going to be easy.

What we offer

- Competitive compensation with meaningful upside.
- A company card for food, coffee, tools, and anything that helps you operate at a high level.
- Daily team lunch and dinner at the office.
- Unlimited workspace budget — build your ideal setup.
- Real ownership and impact from day one.
- A quick phone call to learn about you and share more about our company.
- A technical interview, 1hr of system design, no live coding.
- A paid work trial, so you get a feel for what it's like to work with us.

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📌 Founding Engineer (Senior/Staff/Principal) (City of Sydney)
🏢 coreflow
📍 City of Sydney