{"id":850623,"url":"https://alion.io/job/numos-senior-frontend-engineer","title":"Senior Frontend Engineer","company":{"id":680256,"name":"Numos","domain":"numos.ai","url":"https://alion.io/company/numos-2","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":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-01T05:45:00Z"}},"role":"Frontend","role_family":"Frontend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":152000,"max_usd":290000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":162},"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"React.js","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-03-31T05:12:06Z","employer_posted_date":"2026-03-31","last_verified_at":"2026-10-01T02:11:02Z","board_verified":true,"closed_at":null,"days_open":184,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":183},"description":"We’re looking for a senior frontend engineer to design and build the interfaces for AI teammates in finance. You’ll create intuitive, high-signal experiences that make complex systems understandable, controllable, and trustworthy in real workflows.\nWhat you’ll do\nBuild responsive, high-performance interfaces for AI-driven workflows\n\nTranslate complex data and system behavior into clear, usable experiences\n\nDesign interactions that balance automation with human control and review\n\nCollaborate closely with backend and AI teams to ship end-to-end features\n\nOwn frontend architecture and contribute to design systems and standards\n\nWhat we’re looking for\n2+ years of frontend development experience\n\nStrong expertise in React and TypeScript\n\nExperience designing or building interfaces for AI/ML systems\n\nAbility to work with complex data and create effective visualizations\n\nFamiliarity with modern web technologies and frontend best practices\n\nWhy Numos\nYou’ll be shaping how people interact with AI that actually does the work. The challenge is making powerful systems feel simple, without losing depth or control.","description_format":"text","description_chars":1119,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial AI","Accounting & Tax Software"],"lifecycle":[{"event":"open","at":"2026-09-13T03:29:25Z"}],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.277,"p_room":0.28,"age_days":184,"expected_fill_days":42,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-01T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/numos-senior-frontend-engineer","json_url":"https://alion.io/job/numos-senior-frontend-engineer.json","meta":{"generated_at":"2026-10-01T19:19:15Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1850,"day_limit":5000,"remaining_today":3150,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}