{"id":174969,"url":"https://alion.io/job/sesame-ai-software-engineer-character-platform-tools","title":"Software Engineer, Character Platform & Tools","company":{"id":48220,"name":"Sesame AI","domain":"sesame.com","url":"https://alion.io/company/sesame-ai","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":84,"open_postings":22,"ghost_share":0.182,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":148,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","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","New York, United States","Bellevue, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":175000,"max":280000,"currency":"USD","period":"year","gross":null,"usd_annual":280000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"FastAPI","optional":false},{"name":"GCP","optional":false},{"name":"Kubernetes","optional":false},{"name":"Next.js","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Voice Agents","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-01-20T16:33:10Z","employer_posted_date":"2026-01-20","last_verified_at":"2026-10-17T12:59:06Z","board_verified":true,"closed_at":null,"days_open":269,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":269},"description":"About Sesame\nSesame believes in a future where computers are lifelike - with the ability to see, hear, and collaborate with us in ways that feel natural and human. With this vision, we're designing a new kind of computer, focused on making voice agents part of our daily lives. Our team brings together founders from Oculus and Ubiquity6, alongside proven leaders from Meta, Google, and Apple, with deep expertise spanning hardware and software. Join us in shaping a future where computers truly come alive.\nAbout the Role\nThe best platforms don't just support a workflow - they transform who can participate in it. At Sesame, we're building lifelike, personal, voice-first, agents. Their quality comes from a tight collaboration between engineers, ML researchers, and the creative professionals who define the personality of the agents.\nThis role requires full-stack engineering experience with a focus on the internal tooling and platforms that power our agent research pipeline. We're looking for engineers who are excited to build the systems that enable and accelerate that collaboration.\nYou'll architect and develop the internal platforms that take our team from raw data to fully-realized agents - evaluating quality and iterating cross-functionally through a React-based frontend atop a Python/FastAPI backend, backed by cloud ML infrastructure. The goal isn't just to support what we're doing today; it's to build a platform where our creative and research teams can experiment, iterate, and push the frontier of what's possible in agentic AI.\nResponsibilities:\nCollaborate with research and creative teams to understand their workflows and find opportunities for automation\n\nDesign and build internal tools that allow engineers and non-engineers to experiment\n\nMaintain and iterate on tools based on user feedback to continually improve their utility\n\nRequired Qualifications:\n4+ years experience building internal tools with a strong sense of UI/UX\n\nExperience working with ML research teams\n\nProficiency with modern web development stacks (React/Next.js, Python/FastAPI)\n\nExperience with cloud infrastructure (GCP/Kubernetes)\n\nStrong sense of reliability and knowing when to build vs. borrow\n\nKnowledge of security and privacy best practices\n\nSesame is committed to a workplace where everyone feels valued, respected, and empowered. We welcome all qualified applicants, embracing diversity in race, gender, identity, orientation, ability, and more. We provide reasonable accommodations for applicants with disabilities. Contact  for assistance.\nFull-time Employee Benefits:\n401 (k) max employer match: 3.5% of compensation\n\n100% employer-paid health, vision, and dental benefits for you and your dependents\n\nUnlimited PTO and sick time\n\nFlexible spending account with employer matching up to $1,650/year (medical FSA)\n\nGuardian Employee Assistance Program (EAP)\n\nOpportunity to share in the company's success with competitive stock options\n\nBenefits do not apply to contingent/contract workers.","description_format":"text","description_chars":3025,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Stock options","Unlimited PTO"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Conversational AI","Speech & Audio AI"],"lifecycle":[{"event":"open","at":"2026-08-30T07:48:08Z"},{"event":"open","at":"2026-09-26T04:04:00Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 7","filings_12m":7,"filings_prev_12m":0,"green_card_filings_12m":0,"median_offered_wage_usd":162500,"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)"],"filings_for_role_12m":1}],"liveness":{"score":19,"band":"cold","label":"Long shot","p_open":1,"p_active":0.535,"p_room":0.36,"age_days":269,"expected_fill_days":148,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":280000,"is_top_pay":true},"html_url":"https://alion.io/job/sesame-ai-software-engineer-character-platform-tools","json_url":"https://alion.io/job/sesame-ai-software-engineer-character-platform-tools.json","meta":{"generated_at":"2026-10-17T15:30:26Z","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":21013,"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":48220},"rest":"https://alion.io/mcp/rest/get_company?id=48220"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsesame-ai-software-engineer-character-platform-tools"},{"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%2Fsesame-ai-software-engineer-character-platform-tools"},{"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%2Fsesame-ai-software-engineer-character-platform-tools"},{"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/sesame-ai-software-engineer-character-platform-tools\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsesame-ai-software-engineer-character-platform-tools"}]}