{"id":369803,"url":"https://alion.io/job/full-frontend-engineer","title":"Frontend Engineer","company":{"id":130448,"name":"Fullstack","domain":"full-stack.agency","url":"https://alion.io/company/full-stack","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Frontend","role_family":"Frontend","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":185000,"max":300000,"currency":"USD","period":"year","gross":null,"usd_annual":300000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Chrome DevTools","optional":false},{"name":"CI/CD","optional":false},{"name":"Cypress","optional":false},{"name":"Jest","optional":false},{"name":"Lighthouse","optional":false},{"name":"Rest API","optional":false},{"name":"Vitest","optional":false},{"name":"WebSockets","optional":false},{"name":"JavaScript","optional":true},{"name":"React.js","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2025-08-25T23:19:52Z","employer_posted_date":"2025-08-25","last_verified_at":"2026-10-27T12:52:23Z","board_verified":true,"closed_at":null,"days_open":427,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":427},"description":"The Role\nAs a Frontend Engineer at Fullstack, you will build and scale the core user experience for a retail trading platform designed for speed, clarity, and trust. You will own major frontend systems end to end, from architecture to performance, translating complex real time market data into interfaces that feel intuitive and empowering for everyday traders. You will work closely with designers and backend engineers to ship frequently, refine relentlessly, and deliver a trading experience for fast moving markets.\nWhat You’ll Build & Solve\nCore Interfaces: Design, build, and maintain full-featured web applications and reusable UI libraries that are fast, accessible, and scalable.\nData Visualization: Develop high-performance, interactive charts and real-time visualizations that help users make informed trading decisions.\nPerformance Engineering: Optimize application speed and reliability using advanced caching strategies to achieve sub-second load times.\nSystem Architecture: Integrate complex REST APIs and WebSocket streams while managing robust client-side cached state.\nDevOps & Quality: Configure and maintain CI/CD pipelines for automated builds, previews, testing, and seamless rollbacks.\nWhat You Bring\nExperience: 2+ years of professional experience building modern frontend applications.\nTech Stack: Expert proficiency in TypeScript, JavaScript, and React.\nDesign Sensibility: You are obsessed with user interaction and care deeply about the UI. You have an innate sense for making the complex feel intuitive, and have strong experience in CSS and WAAPI.\nPerformance Mindset: Deep understanding of browser rendering, the DOM, and performance profiling tools (e.g., Lighthouse, Chrome DevTools).\nTesting Culture: Experience writing maintainable test suites using tools like Jest, Vitest, or Cypress.\nIn-Person Collaborator: Thrive in high-bandwidth, in-person engineering environments.\nWork Authorization: Must be authorized to work in the United States.","description_format":"text","description_chars":1977,"description_truncated":false,"requirements":{"experience_years_min":2,"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":["Online Brokerage & Trading Platforms"],"lifecycle":[{"event":"open","at":"2026-09-05T20:27:23Z"}],"visa":[],"liveness":{"score":3,"band":"cold","label":"Long shot","p_open":1,"p_active":0.101,"p_room":0.28,"age_days":427,"expected_fill_days":20,"reasons":["conf:1","win:tail","crowd:junior"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":300000,"is_top_pay":true},"html_url":"https://alion.io/job/full-frontend-engineer","json_url":"https://alion.io/job/full-frontend-engineer.json","meta":{"generated_at":"2026-10-27T13:25:10Z","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":1557,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":130448},"rest":"https://alion.io/mcp/rest/get_company?id=130448"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ffull-frontend-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%2Ffull-frontend-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%2Ffull-frontend-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/full-frontend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ffull-frontend-engineer"}]}