Member of Technical Staff (Growth)

Fireworks AI; United States; On-site; USD 150,000 - 210,000; Full time

Job summary

Fireworks AI is building a high-autonomy product engineering team to fuel a new PLG growth track. As one of the first engineers, you’ll shape the developer journey from discovery through first API call to long-term expansion.

You’ll diagnose problems, ideate solutions, and run experiments to prove what works best for developers. The role demands strong full‑stack capabilities, solid experience with A/B testing and product analytics, and a bias toward action.

Qualifications

• 5+ years building and shipping user-facing products, including real time on product or growth surfaces as a senior, staff, or founding engineer.
• Hands-on experience with A/B testing, funnel analysis, and product analytics.
• Strong full-stack skills: TypeScript/React front end, backend services, APIs, data models, and SQL.
• Experience with consumption or usage-based pricing and billing.
• Excellent written and verbal communication with engineers and non-engineers.

Responsibilities

• Own developer outcomes end to end: identify problems, shape solutions, prototype, ship to production, instrument, and learn from results.
• Build growth foundations: event tracking, funnels, experimentation framework, lifecycle messaging.
• Talk to developers directly to observe first-hand where the first call fails and translate that into working code.
• Craft polished, fast, accessible experiences on marketing site and product, and collaborate with product, design, marketing, data, and sales to enable self-serve growth alongside sales-led motion.

Skills

TypeScript/React

Go backend

APIs

SQL

AB testing

Funnel analysis

Product analytics

Communication

Self-starting

Pricing/billing

Education

Bachelor's or Master's in CS/EE

Job description

• We’re building a new Product-Led Growth (PLG) team, and we’re looking for a creative, high-agency product engineer to be one of its first engineers
• You’ll build Fireworks’ growth platform: the systems and experiences that take a developer from first visit, to first successful API call, to a long-term, expanding customer
• There’s an early roadmap ready, but the market moves quickly, and you’ll be expected to help diagnose customer problems, ideate on solutions, and experiment to find what works
• The surface area includes signup, onboarding, docs, the API and playground, model choice, errors, pricing, billing, and lifecycle messaging, across inference, training, and the rest of the platform. Some of what’s on the table:
• Acquisition to product. Connect how developers discover Fireworks to what they do once they arrive, so every first experience feels built for them
• Activation and onboarding. Cut time to first working request. Useful errors, docs that match the product, the right default model, and a reason to come back
• Experimentation. Build the tools and habits that let the whole company test ideas fast and learn from them
• Trust at scale. Make getting started effortless while keeping the platform safe and reliable for everyone
• Monetization and expansion. Help developers grow with Fireworks, from first project to production scale
• Own developer outcomes end to end: find the problem, shape the solution, prototype, ship to production, instrument, and learn from the results
• Build the growth foundations the team doesn’t have yet: event tracking, funnels, an experimentation framework, and lifecycle messaging
• Design and run experiments with rigor (clear hypotheses, the right metrics, honest readouts), and know when to ship an obvious win without a test
• Talk to developers directly. Watch them build, see where the first call fails, and bring that back as working code
• Craft polished, fast, accessible experiences on our marketing site and in the product
• Dig into funnel and cohort data to find the next bet, and communicate what you find clearly
• Work closely with product, design, marketing, data, and sales, so self-serve growth works alongside our sales-led motion
• Use AI coding tools to move quickly, while owning the quality of everything you ship

A track record of moving business metrics. You can point to specific numbers you changed and howA product engineer mindset. You define the problem and the solution, not just the implementationA bias toward action. You ship in days, not quarters, and you’d rather pick the right problem than wait to be assigned oneA designer’s eye. You care about interaction details, copy, and how a flow feels, and you can make a technical product feel simple5+ years building and shipping user-facing products, including real time on product or growth surfaces as a senior, staff, or founding engineerStrong full-stack skills: TypeScript/React on the front end, plus backend services (Go a plus), APIs, data models, and SQLA Bachelor’s or Master’s degree in CS, EE, or equivalent experienceHands-on experience with A/B testing, funnel analysis, and product analyticsComfort in ambiguity, and the ability to lead without authority across product, design, marketing, and dataClear written and verbal communication with engineers and non-engineersGenuine high agency. You’ve started things nobody asked you to, pushed them through without a mandate, and owned the result when it didn’t workExperience with consumption or usage-based pricing and billingFireworks AI is an equal opportunity employer. We encourage you to apply even if you don’t meet every qualificationWe’ll look closely at work you personally identified, built, and shipped, and what you learned after launch. Come ready to walk us through a time you saw a problem no one owned, decided to fix it, and drove it to a measurable outcome. Expect a practical product and engineering exercise, not pure algorithm puzzlesGrowth, activation, or monetization experience at a developer-tools, API, or infra companyExperience building developer-facing products (APIs, SDKs, dev tools, consoles)Experience building PLG or self-serve inside a company that also sells top-downExperience with trust & safety or identity systemsA portfolio, side projects, or launches that show your taste and range. Non-traditional paths welcome. We care about what you’ve shipped and the judgment behind itYou’ve built with LLM APIs and have opinions on what great developer onboarding for AI looks like