{"id":841580,"url":"https://alion.io/job/paxoslabs-smart-contract-engineer","title":"Smart Contract Engineer","company":{"id":689652,"name":"Paxos Labs","domain":"paxoslabs.com","url":"https://alion.io/company/paxoslabs","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":6,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Web3","role_family":"Web3","seniority":null,"employment_type":"contractor","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":141000,"max_usd":308000,"period":"year","method":"role_country_seniority_unknown","sample_n":44},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Aave","optional":false},{"name":"Compound","optional":false},{"name":"CosmWasm","optional":false},{"name":"DeFi","optional":false},{"name":"Echidna","optional":false},{"name":"Foundry","optional":false},{"name":"Hardhat","optional":false},{"name":"MakerDAO","optional":false},{"name":"Morpho","optional":false},{"name":"Pendle","optional":false},{"name":"Rust","optional":false},{"name":"Smart Contracts","optional":false},{"name":"Solidity","optional":false},{"name":"Uniswap","optional":false},{"name":"Cosmos","optional":true},{"name":"Ethereum","optional":true}],"status":"live","first_seen_at":"2025-11-13T16:22:11Z","employer_posted_date":"2025-11-13","last_verified_at":"2026-10-31T13:48:28Z","board_verified":true,"closed_at":null,"days_open":351,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":351},"description":"Who we are\nPaxos Labs builds enterprise infrastructure that powers the next generation of trusted onchain financial products. We work with the largest financial enterprises in the world to build transparent and verifiable onchain infrastructure that works for end users and everyday financial use cases. If you believe in bringing DeFi and digital assets to the mainstream, consider building your career at Paxos Labs.\nWe're hiring a Smart Contract Engineer to help scale Paxos Labs's DeFi protocol infrastructure capabilities.\nWho we’re looking for\nThe smart contract team at Paxos Labs consists of experienced developers who have shipped multiple decentralized primitives from lending markets to vaults. We are looking for a motivated developer that can not only develop, but aptly research and deploy extensive knowledge across DeFi to create mission critical software to bring DeFi to the biggest enterprises in the world.\nMost importantly, we are looking for developers with interests in the following:\nDeFi Yield Strategies\n\nTokenization\n\nDecentralized Lending\n\nUnder/un-collateralized Lending\n\nResponsibilities\nResearch and design novel protocol mechanisms around vaults, lending, and other DeFi primitives.\n\nLead protocol design decision making considering tradeoffs across trust assumptions and efficiency.\n\nDevelop solidity contracts and produce comprehensive test suites for the protocol.\n\nMaintain exemplary organizational and security standards for an open source codebase.\n\nQualifications\nKnowledge\nDeep knowledge refers to having direct contributions or having integration experiences through related projects and knowing lower level details.\nFamiliarity refers to not having had direct contributions to the space but following topics at a high level with interest.\nDeep knowledge in Lending codebases-Compound, Aave, Morpho Blue, MakerDAO, Euler, EVC, Liquity, Pendle.\n\nDeep knowledge in Vaults codebases-Yearn V3, Metamorpho / Morpho V2, BoringVaults, ERC7540, Centrifuge, etc.\n\nFamiliarity withAMMs or solver networks -CoW Protocol, UniswapX, 1inch, Uniswap V3/V4.\n\nFamiliarity with RFQs -Hashflow, 1inch RFQ, or off-chain exchange systems (including TradFi)\n\nExperience\nExperience shipping production Solidity smart contract code to mainnet.\n\nExperience developing and maintaining tests for smart contract code i.e. unit testing, fork testing, fuzzing, invariant testing (Foundry invariants or Echidna).\n\nExperience with smart contract development tools such as Foundry (preferred) or Hardhat.\n\nFamiliarity with other smart contract development languages and frameworks such as, Vyper, Rust, Cairo, or Cosmwasm.\n\nExperience as an active degen / investor / user in these DeFi protocols.\n\nOther nice-to-haves\nPersonal experience in CTFs, gas golfing, hackathons.\n\nPersonal experience in blockchain architecture beyond solidity i.e. Rollups,\n\nPersonal experience as a degen/investor/user in DeFi protocols.\n\nPersonal experience in blockchain architecture beyond smart contracts i.e. node operations, rollup design, zero-knowledge proofs.\n\nWhy join us?\nJoining Paxos Labs means becoming part of a pioneering team at the forefront of financial innovation for the mass market. You will have the opportunity to:\nBuild the Future: Play a critical role in transforming traditional enterprises with innovative crypto solutions.\n\nDo Impactful Work: Contribute to projects that have a tangible impact on the global financial landscape.\n\nEnable Personal Growth: Benefit from continuous learning and professional development in a rapidly evolving industry with an emphasis on personal career advancement.\n\nReceive Competitive Compensation: Receive a competitive salary and participate in directly in ownership structures that provide top-of-the-line benefits.\n\nJoin A Dynamic Team: Thrive in a fast-paced, agile setting where your ideas are valued and your contributions are recognized.\n\nLocation\nWe are a heavily in-person team working in New York City. We prize effective in-person coordination that allows us to move fast. We also consider remote work on a case by case basis.\nOnce we receive your application, we'll be in touch if we are interested.","description_format":"text","description_chars":4158,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Professional development"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Smart Contracts & Security","Cryptocurrencies","Crypto Payments","Stablecoins"],"lifecycle":[{"event":"open","at":"2026-09-12T22:11:30Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.182,"p_room":0.28,"age_days":351,"expected_fill_days":30,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/paxoslabs-smart-contract-engineer","json_url":"https://alion.io/job/paxoslabs-smart-contract-engineer.json","meta":{"generated_at":"2026-10-31T16:02:05Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":25067,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":689652},"rest":"https://alion.io/mcp/rest/get_company?id=689652"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpaxoslabs-smart-contract-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fpaxoslabs-smart-contract-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fpaxoslabs-smart-contract-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/paxoslabs-smart-contract-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpaxoslabs-smart-contract-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":841580}},{"tool":"search_jobs","arguments":{"company":"paxoslabs.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":841580},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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