AI Product Engineer

About the Role

Product engineers at Fireworks build the software we ship to our users. You'll join a high-autonomy team that turns frontier AI infrastructure into products developers and enterprises love – from the inference API and developer console to fine-tuning workflows, deployment management, billing, and new bets like Fire Pass and agentic tooling.

This is not a 'take a ticket and implement' role. You'll sit close to customers, talk to users directly, and iterate on what you ship based on real feedback – often within days, not quarters. You'll own features end-to-end: understand the problem (sometimes by joining a customer call), design the solution, build it across the stack, ship it, instrument it, and improve it until it works in production.

Fireworks owns the full stack: training, fine-tuning (SFT and RFT at frontier scale), serverless and dedicated inference, multi-LoRA serving, and agentic orchestration – all on infrastructure we built from scratch. Product Engineering sits on top of that stack and makes it usable. The pace of AI moves week to week; the map is being drawn as we go, and product engineers here help draw it.

You may be a fit if:

• You've built a product people actually use – and you cared about how it felt, not just whether it compiled

• You blend strong engineering with product taste and an instinct for what great developer experience looks like

• You'd rather talk to a customer, ship a prototype, and learn than wait for a perfect spec

• You have a knack for making powerful infrastructure feel simple – without dumbing it down

• You move fast with good judgment: you know when to polish and when to ship and iterate

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• Ship product and talk to users. Join customer calls, work with design partners, and turn what you learn into product improvements – not slide decks

• Own features end-to-end across the Fireworks platform: developer console, API surfaces, model playground, fine-tuning workflows, deployment management, billing, and new product bets

• Sprint on 0→1 initiatives. Take ambiguous ideas from concept to shipped product in weeks – new workflows, new product surfaces, new ways for developers to build on Fireworks

• Build for deeply technical users where the product is an API as much as a UI – and sweat the details in both

• Work full stack across frontend (React/Type Script), backend services (Python, Go), APIs, and data layers to deliver polished, production-quality surfaces

• Iterate with data and conviction. Instrument what you ship, watch how developers use it, run experiments, and improve fast

• Partner across the company with Infrastructure, Applied Research, Growth, Data, and Design – but don't wait for perfect alignment to make progress

• Punch through technical walls. When platform primitives aren't there yet, you'll help define what's needed and build around (or through) the gaps

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• Launching a new developer workflow end-to-end in a two-week sprint – from customer problem to shipped console + API surface

• Redesigning a core product flow (deployments, fine-tuning, or billing) after sitting in on customer onboarding sessions

• Building and iterating on agentic product surfaces – tool use, orchestration UX, and harness tooling that developers trust

• Running experiments on API/console behavior to reduce time-to-first-successful-request for new developers

• Shipping a new consumption model or product vertical from scratch with a small cross-functional pod

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• 3+ years of experience as a software engineer, with meaningful time spent building user-facing products

• Strong full-stack skills – comfortable across frontend (React/Type Script), backend (Python, Go, or similar), APIs, and databases

• Experience building developer-facing products: APIs, dashboards, consoles, CLIs, or developer tools

• Track record of owning features end-to-end – from problem discovery through deployment and iteration

• Strong product instincts and developer empathy – you notice when something is off in a workflow and you fix it

• Demonstrated ability to operate at high velocity…