Job Description
About us
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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.
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We work in-person in Sydney, Australia, and hire globally.
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How we work
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User-first:
We build what people want. We invest time to understand our users and focus on adding value instead of extracting value.
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High agency, high ownership:
We own outcomes end-to-end. When something goes wrong, we take responsibility and fix it.
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Urgency:
We prioritize ruthlessly, increase leverage, and move at an exceptional pace.
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What you'll do
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You'll own our
model inference stack
end-to-end - serving our in-house and open-source models to tens of millions of users at low latency and high throughput, and squeezing every bit of performance out of our GPU fleet.
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Example projects
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Ship a
high-throughput inference server
for our in-house models, serving millions of generations per day at
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Squeeze more out of every GPU with
batching, quantization, and custom CUDA kernels
.
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Test and productionize
LoRAs and our in-house models
to serve 10s of millions of users.
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What you'll bring
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5+ years of experience building software at scale, with a focus on
ML inference or GPU-accelerated systems
.
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Deep familiarity with
GPU inference
: batching, quantization, and serving frameworks like vLLM, TensorRT, or Triton.
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The ability to




get shit done end-to-end
. From understanding users proposing an idea implementation iteration.
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Hunger to win. This is not going to be easy.
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What we offer
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Top-of-market compensation
with meaningful equity upside.
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Real ownership from day one.
Work on important problems and see the impact of what you ship.
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Rapid-growing scope.
As your impact grows, your responsibility and compensation should grow with it.
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A company card for food, coffee, tools, and anything that helps you do your best work.
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Daily team lunch and dinner at the office.
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An unlimited workspace budget to build your ideal setup.
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Visa sponsorship and relocation assistance for people moving to Sydney.
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How we think about comp
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We
raise the ceiling for exceptional performers
, not the floor. As your impact grows, your compensation should too.
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The listed range is cash + equity, with superannuation on top.
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We review compensation every 6 months.
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Bonuses reward past impact, and raises reflect your new level.
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Our interview process
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Intro call:
15 minutes to align on the role and company.
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Founder interview:
go deep on what you've built, how you think, and how you work.
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Technical interview:
1 hour of system design and technical discussion. No live coding.
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Paid work trial:
spend 3 days with us in Sydney working on a real problem. We cover travel and accommodation, if needed.
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Offer:
if it's a strong fit, we move quickly.
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📌 Software Engineer (Model Inference) (New South Wales)
🏢 coreflow
📍 New South Wales