coreflow
coreflow7mo ago
A$300K – A$800K • Offers Equity • Offers Bonus/yr

Software Engineer

AustraliaAustralia·Sydneyfull-timemid
Software EngineerSoftware EngineeringExecutiveFounder
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Quick Summary

Key Responsibilities

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.

Technical Tools
awsjavascriptnextjspostgresqlreacttypescriptsystem-design
  • We're building a new category of interactive entertainment powered by AI characters, image, video, and real-time experiences. We’re one of the most-visited AI products globally, serving millions of users every day.

  • We work in-person in Sydney, Australia, and hire globally.

  • User-first: We build what people want. We invest time to understand our users and focus on adding value instead of extracting value.

  • High agency, high ownership: We own outcomes end-to-end. When something goes wrong, we take responsibility and fix it.

  • Urgency: We prioritize ruthlessly, increase leverage, and move at an exceptional pace.

Responsibilities

~1 min read

You’ll join a small, talent-dense engineering team with significant ownership across product, infrastructure, and AI.

You won’t be handed narrowly-scoped tickets. You’ll work from problems and outcomes: understand what users need, decide what should be built, design the system, ship it, measure the result, and iterate.

  • Design memory for month-long conversations. Decide how memories are written, ranked, and retrieved across billions of messages while fitting everything into a fixed context budget.

  • Build the For You feed. Own retrieval, ranking, cold start, and experimentation end-to-end, with retention as the metric.

  • Ship frontier models days after release. Evaluate and benchmark new models, figure out the economics of hosting them at scale, and find the best configuration for millions of users.

  • A track record of shipping exceptional products at meaningful scale.

  • Strong product and engineering judgment: knowing what to build, how to build it, and where to make tradeoffs.

  • Hunger to win. You want high ownership, high expectations, and a lot of responsibility.

Our product stack includes TypeScript, Next.js, React, tRPC, Postgres, ClickHouse, Temporal, and AWS. Our inference stack is Python, serving LLMs, TTS, and diffusion image and video models on self-hosted GPUs.

What We Offer

~1 min read
Top-of-market compensation with meaningful equity upside.
Real ownership from day one. Work on important problems and see the impact of what you ship.
Fast-growing scope. As your impact grows, your responsibility and compensation should grow with it.
A company card for food, coffee, tools, and anything that helps you do your best work.
Daily team lunch and dinner at the office.
An unlimited workspace budget to build your ideal setup.
Visa sponsorship and relocation assistance for people moving to Sydney.

We raise the ceiling for exceptional performers, not the floor. As your impact grows, your compensation should too.

  • The listed range is cash + equity, with superannuation on top.

  • We review compensation every 6 months.

  • Bonuses reward past impact, and raises reflect your new level.

  1. Intro call: 15 minutes to align on the role and company.

  2. Founder interview: go deep on what you’ve built, how you think, and how you work.

  3. Technical interview: 1 hour of system design and technical discussion. No live coding.

  4. Paid work trial: spend 3 days with us in Sydney working on a real problem. We cover travel and accommodation, if needed.

  5. Offer: if it’s a strong fit, we move quickly.

Location & Eligibility

Where is the job
Sydney, Australia
On-site at the office
Who can apply
AU

Listing Details

Posted
February 1, 2026
First seen
May 6, 2026
Last seen
September 13, 2026

Posting Health

Days active
103
Repost count
0
Trust Level
26%
Scored at
August 18, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
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coreflowSoftware EngineerA$300K – A$800K • Offers Equity • Offers Bonus