{"id":817819,"url":"https://alion.io/job/safetykit-senior-backend-engineer-staff","title":"Senior Backend Engineer (Staff)","company":{"id":688848,"name":"SafetyKit","domain":"safetykit.com","url":"https://alion.io/company/safetykit","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":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-08T05:47:12Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","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":186000,"max_usd":346000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1500},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Amazon Aurora","optional":false},{"name":"AWS","optional":false},{"name":"AWS CDK","optional":false},{"name":"AWS Lambda","optional":false},{"name":"AWS Step Functions","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2025-04-08T02:31:17Z","employer_posted_date":"2025-04-08","last_verified_at":"2026-11-09T00:55:43Z","board_verified":true,"closed_at":null,"days_open":580,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":579},"description":"We’re building the future of enterprise B2B SaaS with AI agents. We operate at the scale of our customers with 1% of the resources. That requires precision, good judgement, and a sense of daring. We care as much about model productivity as we do human productivity. As a software architect, you’re responsible for both.\nWe work exclusively with AWS Serverless products (Lambda, Step Functions, RDS Aurora). We’re obsessed with scaling without toil. We love AWS CDK. We really, really love it.\nWe work in Typescript and a tiny amount of Python, but we try not to be precious about these things.\nResponsibilities\nDesign and build scalable, high-performance infrastructure.\n\nDesign architectures that allow both engineers and language models to quickly create, test, and deploy application code.\n\nCreate reliable monitoring, logging, and alerting systems to ensure platform stability and performance\n\nMentor teammates and lead technical decision-making across the organization\n\nCollaborate with AI and product teams to translate complex requirements into elegant technical solutions\n\nDrive engineering best practices, including code reviews, testing strategies, and documentation\n\nUse codegen models to move 10x faster than you did two years ago\n\nAbout you\nYou love language models.\n\nYou have the patience to be rigorous.\n\nYou act like an owner in everything you do.\n\nPeople tell you you pick things up unusually quickly.\n\nYou love the weird little details of life in our customer’s companies.\n\nYou care about your work and you care about moving fast. A lot.\n\nYou know more than you need to know. You have an insatiable curiosity.","description_format":"text","description_chars":1627,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents","Cybersecurity AI"],"lifecycle":[{"event":"open","at":"2026-09-12T11:56:27Z"},{"event":"open","at":"2026-09-25T15:34:13Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.266,"p_room":0.28,"age_days":579,"expected_fill_days":41,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-11-08T05:47:12Z"},"pay":null,"html_url":"https://alion.io/job/safetykit-senior-backend-engineer-staff","json_url":"https://alion.io/job/safetykit-senior-backend-engineer-staff.json","meta":{"generated_at":"2026-11-09T03:26:11Z","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":1613,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-10T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":688848},"rest":"https://alion.io/mcp/rest/get_company?id=688848"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsafetykit-senior-backend-engineer-staff"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fsafetykit-senior-backend-engineer-staff"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fsafetykit-senior-backend-engineer-staff"},{"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/safetykit-senior-backend-engineer-staff\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsafetykit-senior-backend-engineer-staff"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":817819}},{"tool":"search_jobs","arguments":{"company":"safetykit.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":817819},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}