Founding Engineer
About us
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 opportunity. 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.
Example projects
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.
Our interview process
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.
You get an offer, and we celebrate!