Java Jobs in Web3

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.The Role Alchemy builds the infrastructure that the largest financial institutions in the world depend on. The Transaction Engine team owns the systems that power gasless transactions that land on-chain reliably, predictably, and at scale. This role is for a Senior Backend Engineer who wants to shape core transaction infrastructure, influence platform direction, and operate at the intersection of backend systems and on-chain execution.  You’ll define and evolve the systems that handle transaction submission, simulation, tracking, and debugging across chains. Your work will directly affect transaction success rates, developer trust, and platform reliability. You’ll operate at platform scale, with real usage, real constraints, and real outcomes. What You'll Do:

Set technical direction for core transaction and wallet-adjacent backend systems. Design and evolve APIs used by external developers and internal product teams. Lead architecture decisions around scalability, correctness, and operational resilience. Partner with product, infra, and protocol teams to drive multi-quarter initiatives. Raise engineering standards through design reviews, mentorship, and technical leadership.

What We're Looking For:

7+ years of relevant industry experience BS/BA degree in Computer Science Senior level backend engineering experience operating large production systems. Strong proficiency in Java, TypeScript, and/or Rust. Proven track record designing durable, widely-used APIs. Strong understanding of smart contract execution:

Comfort reading ABIs, logs, traces, and transaction receipts Ability to reason about on-chain behavior without writing Solidity

Experience leading complex technical projects across teams. Clear ownership mindset and high technical judgment. Web3 experience, a plus

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 $200,000 - $220,000 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.