{"id":42500,"url":"https://alion.io/job/zyphra-lead-frontend-engineer","title":"Lead Frontend Engineer","company":{"id":8989,"name":"Zyphra","domain":"zyphra.com","url":"https://alion.io/company/zyphra","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"D","score":48,"open_postings":16,"ghost_share":0.875,"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":"lead","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":162000,"max_usd":309000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":38},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Figma","optional":false},{"name":"JavaScript","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-03-17T03:54:14Z","employer_posted_date":"2026-03-17","last_verified_at":"2026-10-17T15:34:37Z","board_verified":true,"closed_at":null,"days_open":214,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":214},"description":"Zyphra is an artificial intelligence company based in San Francisco, California.\nThe Role:\nAs a Lead Frontend Engineer, you’ll lead the design and development of the user-facing side of our agentic system, shaping how users interact with AI across their desktop, browser, and filesystem. You’ll work across interface design, component libraries, and frontend infrastructure to craft seamless, accessible, and intuitive user experiences. You’ll work closely with engineers, ML researchers, and backend teams to bring intelligent agents to life in a way that’s beautifully simple and deeply useful.\nYou’ll Work Across:\nDesign and development of browser-based and desktop interfaces\n\nBuilding and maintaining component libraries and styling systems\n\nResearching and refining user flows based on real-world usage and feedback\n\nPrototyping and implementing UI features in collaboration with ML, backend, and systems teams\n\nMaking a complex AI product feel simple, accessible, and empowering for a wide range of users\n\nWhat We're Looking For / Requirements:\nStrong frontend engineering skills with fluency in HTML, CSS, and JavaScript/TypeScript\n\nExperience with modern frontend frameworks such as React\n\nDemonstrated attention to UI detail and usability, with a user-first mindset\n\nAbility to prototype and iterate quickly, both in code and with design tools like Figma\n\nExperience designing and developing responsive, accessible, and high-performance interfaces\n\nStrong intuition for HCI principles, accessibility, and visual clarity\n\nExcellent collaboration and communication skills-especially with engineers, designers, and ML researchers\n\nQualifications / Additional Skills:\nExperience designing or building browser extensions or desktop applications (e.g., Electron, Tauri)\n\nExperience with mobile platforms and responsive design (not required but helpful)\n\nPrior work on products involving complex workflows, automation, or agentic behavior\n\nInterest or experience in backend development, APIs, or AI systems to better interface with the full stack\n\nFamiliarity with accessibility standards and inclusive design best practices\n\nA track record of launching polished and user-loved products\n\nPassion for systems-level thinking: building reusable design systems, libraries, and scalable patterns\n\nA clear, opinionated eye for elegant design and user delight\n\nWhy Work at Zyphra:\nOur research methodology is grounded in methodical, step-by-step approaches to ambitious goals. Both deep research and engineering excellence are equally valued\n\nWe strongly value new and crazy ideas and are very willing to bet big on new ideas\n\nWe move as quickly as we can; we aim to minimize the bar to impact as low as possible\n\nWe all enjoy what we do and love discussing AI\n\nBenefits and Perks:\nComprehensive medical, dental, vision, and FSA plans\n\nCompetitive compensation and 401(k) plan\n\nRelocation and immigration support on a case-by-case basis\n\nIn-office snacks and meals provided\n\nUnlimited PTO and company holidays\n\nIn-person team in San Francisco with a collaborative, high-energy environment","description_format":"text","description_chars":3084,"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":["Unlimited PTO"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Foundation Models","AI Research Labs"],"lifecycle":[{"event":"open","at":"2026-03-17T03:54:14Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.153,"p_room":0.28,"age_days":214,"expected_fill_days":24,"reasons":["conf:3","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/zyphra-lead-frontend-engineer","json_url":"https://alion.io/job/zyphra-lead-frontend-engineer.json","meta":{"generated_at":"2026-10-17T15:45:02Z","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":21367,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":8989},"rest":"https://alion.io/mcp/rest/get_company?id=8989"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fzyphra-lead-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%2Fzyphra-lead-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%2Fzyphra-lead-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/zyphra-lead-frontend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fzyphra-lead-frontend-engineer"}]}