Web3 Engineering React Jobs in San Francisco, United States

Our Mission

Our mission is to bring web3 to a billion people, by providing builders with the tools they need to build exceptional onchain products. Alchemy is the only complete developer platform that offers the powerful APIs, SDKs, and tools necessary to build and scale onchain apps and rollups.

Our infrastructure powers 70% of the top web3 teams, 90%+ of web2 companies building in web3 and 100+ million end users. Our customers include top web3 brands like Polymarket, OpenSea, Circle, WorldCoin, as well as major global brands like Shopify and Adobe.

The Alchemy team draws from decades of deep expertise in massively scalable infrastructure, AI, and blockchain from leadership roles at leading companies and universities like Google, Microsoft, Facebook, Stanford, and MIT.

We're backed by the world's leading VCs and institutions, including: Lightspeed, Silver Lake, a16z, Coatue, Pantera, Addition, Stanford University, Coinbase, and Charles Schwab, among others.

About The Role

As a Product Designer you'll sit at the intersection of product design, product thinking, and front-end engineering—someone who can take early, ambiguous ideas and turn them into interactive, evaluable experiences fast, helping teams make better decisions sooner.

This role is front-end and systems-heavy, with a strong balance of hands-on building and product design partnership. You’ll help us scale and evolve Alchemy’s UI system—owning core components, patterns, and implementation quality—while also jumping into product work when needed to unblock teams and raise the craft bar.

This is a high-leverage role: you’ll reduce handoff friction, increase prototype velocity, and elevate UI quality through hands-on building, close collaboration, and a strong point of view on systems.

What You'll Do

• Build production-quality prototypes (and, when appropriate, ship production front-end code) to validate UX direction quickly—often on tight timelines.
• Own and evolve Alchemy’s design system in practice: build and maintain reusable components, patterns, and interaction primitives that scale across products.
• Translate design intent into high-quality React/TypeScript UI, with attention to spacing, hierarchy, motion, and interaction polish.
• Drive system scalability: identify gaps, propose improvements, and ship additions that make the product ecosystem more consistent and faster to build.
• Partner closely with product designers to improve the craft and feasibility of design work—bringing an engineer’s pragmatism and a designer’s taste.
• Collaborate tightly with product engineers to reduce rework and make the path from prototype → implementation smoother.
• Improve “how we build UI” muscle across teams: documentation, examples, and workflow improvements that raise the baseline.
• Build for an AI-native product future: create interaction patterns and UI foundations that support rapid experimentation and iteration in AI-driven experiences.
• Contribute to design-system adoption and quality: tokens/components/docs, accessibility standards, and tooling (e.g., Storybook) when needed.
• Help teams iterate in short cycles (e.g., ~5–10 day “idea → prototype → decision” loops), bringing clarity to what’s possible and what’s worth building.

What We're Looking For

• Strong front-end fundamentals and comfort building interactive UI (e.g., React + TypeScript; equivalent stacks welcome).
• Systems-minded builder: you’ve shipped and maintained component libraries / design systems (tokens, components, documentation, adoption).
• A designer’s eye: you care about hierarchy, spacing, typography, interaction details, and visual polish.
• Proven ability to prototype quickly without sacrificing craft—and to choose the right fidelity for the question at hand.
• Ability to operate in ambiguity and move fast with high ownership.
• Clear communicator across disciplines; you can translate between design intent and technical constraints.
• Bonus: accessibility fluency, Storybook (or similar), motion/animation experience, and experience scaling design systems across multiple product surfaces.

Benefits and Perks 

🩺  Medical, Dental, & Vision💪  Gym Reimbursement🖥️  Home Office Build-out Budget🥙  In-Office Group Meals🧘‍♂️  Wellbeing & Mental Health Perks📚 Learning & Development Stipend🎉  Company Sponsored Conferences & Events💸  HSA and FSA Plans🧬  Fertility Benefits

More on the Role

Alchemy is committed to offering competitive compensation, including base salary as well as equity. Additionally, Alchemy offers comprehensive medical, dental, and vision coverage, as well as other benefits such as 401k and unlimited flexible time off.

The base salary range for this position is estimated to be between $180,000 - $210,000 annually. Please note this range reflects base salary only, and does not include bonus, equity, or benefits. Your salary will be determined by various factors, including relevant experience, skill set, qualifications, and other business needs.