{"id":12106,"url":"https://alion.io/job/databento-software-engineer-typescriptjavascript","title":"Software Engineer (TypeScript/JavaScript)","company":{"id":3463,"name":"Databento","domain":"databento.com","url":"https://alion.io/company/databento","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"C","score":58,"open_postings":13,"ghost_share":0.692,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Frontend","role_family":"Frontend","seniority":"middle","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":130000,"max":215000,"currency":"USD","period":"year","gross":null,"usd_annual":215000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Figma","optional":false},{"name":"JavaScript","optional":false},{"name":"npm","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"Rest API","optional":false},{"name":"Rust","optional":false},{"name":"Storybook","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"WebAssembly","optional":false},{"name":"WebSockets","optional":false}],"status":"live","first_seen_at":"2026-07-21T20:24:17Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-17T23:18:35Z","board_verified":true,"closed_at":null,"days_open":88,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":87},"description":"The financial industry is growing at a record pace, but our data providers are still stuck in the past - with cumbersome onboarding processes, complicated APIs, slow infrastructure, and expensive licensing costs.\nDatabento is the market data platform for modern finance. The company provides real-time and historical data across futures, options, and equities through a unified API. By owning the entire market data stack end-to-end, Databento is the first platform of its kind to combine the performance and reliability demanded by the world's leading trading firms with a dramatically simpler developer experience. Our team includes alumni of Two Sigma, Citadel Securities, Flow Traders, Tower Research, PDT Partners, SIG, and other top quantitative firms.\nWe're looking for a midlevel or senior IC to join our Platform/API engineering team. You'll be responsible for building, maintaining, and promoting our JavaScript client library, working closely with our design team to bring production-ready interfaces to life. This role is primarily focused on TypeScript/JavaScript, with some full-stack/Python work as well.\nResponsibilities\nOwn, build, and maintain our JavaScript client library, ensuring it is robust, well-tested, and easy for external users to integrate with.\nIntegrate native libraries into JavaScript/TypeScript code using tools like N-API, node-addon-api, or Wasm.\nBuild responsive, performant front-end applications using React, Redux, Vite, Web Workers, and WebSockets.\nContribute to full-stack projects, including backend work in Python (or Rust), REST API design, and database/migration work.\nWork between design and engineering teams to translate designs (e.g. Figma handoffs) into production-ready components and design systems.\nSet up and maintain CI/CD pipelines, including publishing to npm.\nDocument components using Storybook or similar tooling.\nCollaborate cross-functionally to ensure smooth feature rollouts and updates.\nPreferred background\nExperience working between high-performing design and engineering teams, including production-ready design systems and tools (e.g. Figma handoffs).\nProficiency with React, Redux, Vite, Web Workers, and WebSockets.\nBackground in trading, market data, or quantitative finance.\nHands-on backend experience building APIs, working with databases, and migrations.\nFull-stack experience with backends in Python or Rust, including REST API design.\nFamiliarity with Storybook or similar component documentation tooling.\nGood communication skills and work ethic for a remote workplace.\nThe base salary range for this role is $130,000-$215,000, benchmarked to Tier 1 locations in each country. Total compensation may also include bonuses, commissions, and equity, depending on the role.\nNotice about phishing scams\nBe cautious of phishing scams impersonating Databento that offer fake job interviews and request purchases. Official emails come only from @databento.com or us.greenhouse-mail.io (our ATS). Any other domains (e.g., databento-careers.com, databento.online) are fraudulent.\n--\nDatabento, Inc. provides equal employment opportunities to all employees and applicants without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity or expression, veteran status, or genetics. In addition to federal law requirements, we comply with applicable state and local laws governing nondiscrimination in every location where we operate. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Pursuant to applicable laws, we consider qualified applicants with arrest or conviction records. If you need an accommodation, please let us know.\nOur recruiting data suggests that underrepresented applicants often downplay their skills. Even if your experience doesn’t exactly match the qualifications listed, we still want to hear from you. Please apply!","description_format":"text","description_chars":4011,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Data Providers & Datasets","Financial Data & Market Intelligence"],"lifecycle":[{"event":"open","at":"2026-07-21T20:24:17Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 2 · green card filings: 1","filings_12m":2,"filings_prev_12m":3,"green_card_filings_12m":1,"median_offered_wage_usd":137500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":1}],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.346,"p_room":0.28,"age_days":87,"expected_fill_days":35,"reasons":["conf:1","stale_co","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":215000,"is_top_pay":true},"html_url":"https://alion.io/job/databento-software-engineer-typescriptjavascript","json_url":"https://alion.io/job/databento-software-engineer-typescriptjavascript.json","meta":{"generated_at":"2026-10-18T00:04:45Z","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":142,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":3463},"rest":"https://alion.io/mcp/rest/get_company?id=3463"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fdatabento-software-engineer-typescriptjavascript"},{"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%2Fdatabento-software-engineer-typescriptjavascript"},{"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%2Fdatabento-software-engineer-typescriptjavascript"},{"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/databento-software-engineer-typescriptjavascript\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fdatabento-software-engineer-typescriptjavascript"}]}