{"id":4336825,"url":"https://alion.io/job/metamask-senior-software-engineer-assets","title":"Senior Software Engineer: Assets","company":{"id":47473,"name":"MetaMask","domain":"metamask.io","url":"https://alion.io/company/metamask","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":139000,"max":210000,"currency":"USD","period":"year","gross":null,"usd_annual":210000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"MetaMask","optional":false},{"name":"React.js","optional":false},{"name":"Token Standards","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-11-15T00:20:45Z","employer_posted_date":null,"last_verified_at":"2026-11-15T00:20:45Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"MetaMask is looking for a Senior Software Engineer to architect and build digital asset features across MetaMask clients and develop core wallet controllers while expanding support for emerging standards such as Real World Assets\n\nYou will architect, build, and maintain features related to digital assets across MetaMask clients, including ERC-20 tokens, NFTs, Token Lists, and Token Detail Pages. You will develop and support core wallet controllers that manage asset state and data, expand asset support to emerging standards such as Real World Assets, and help create intuitive, efficient, and secure Web3 interactions. You will collaborate with product managers, designers, and engineers and take part in code reviews.\n\nResponsibilitiesArchitect, build, and maintain features related to digital assets across MetaMask Clients, including ERC-20 tokens, NFTs, Token Lists, and Token Detail Pages\nDevelop and support core wallet controllers that manage asset state and data\nExpand asset support to include emerging standards such as Real World Assets (RWAs)\nCreate intuitive, efficient, and secure Web3 interactions\nCollaborate with product managers, designers, and other engineers to deliver high-quality features\nParticipate in code reviews and help maintain high code quality standards\n\nRequirements3+ years working with mobile-based technologies\n3+ years building websites and/or applications\nExperience with React and React Native\nStrong knowledge of modern Javascript (ES6/TypeScript/etc.)\nFamiliarity with blockchain fundamentals and Web3 integration\nWorking knowledge of cross platform/browser compatibility\nExperience working with APIs and middleware services\nExperience working in an agile development team\nExperience developing applications with clean code practices, testing, and adherence to coding standards\nUnderstanding of web-based security considerations\nGood verbal and written communication in English","description_format":"text","description_chars":1923,"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":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Crypto Wallets"],"lifecycle":[{"event":"open","at":"2026-11-15T15:48:20Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":30,"reasons":["seen:0","win:early"],"computed_at":"2026-11-15T18:09:32Z"},"pay":{"stated_usd_annual":210000,"is_top_pay":true},"html_url":"https://alion.io/job/metamask-senior-software-engineer-assets","json_url":"https://alion.io/job/metamask-senior-software-engineer-assets.json","meta":{"generated_at":"2026-11-15T18:09:32Z","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":10815,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-16T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":47473},"rest":"https://alion.io/mcp/rest/get_company?id=47473"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmetamask-senior-software-engineer-assets"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"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%2Fmetamask-senior-software-engineer-assets"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fmetamask-senior-software-engineer-assets"},{"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/metamask-senior-software-engineer-assets\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmetamask-senior-software-engineer-assets"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4336825}},{"tool":"search_jobs","arguments":{"company":"metamask.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4336825},"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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