{"id":3394095,"url":"https://alion.io/job/kake-senior-fullstack-ruby-on-railstypescriptreact-engineer","title":"Senior Fullstack (Ruby On Rails/TypeScript/React) Engineer","company":{"id":4454565,"name":"Kake","domain":"kake.co","url":"https://alion.io/company/kake-2","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"B","score":75,"open_postings":32,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"unspecified","remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":83000,"max_usd":214000,"period":"year","method":"global_role_seniority_cell","sample_n":7767},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"React.js","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"TypeScript","optional":false},{"name":"CI/CD","optional":true},{"name":"GraphQL","optional":true},{"name":"JavaScript","optional":true},{"name":"Ruby","optional":true}],"status":"live","first_seen_at":"2026-01-24T02:34:41Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-11-01T13:46:05Z","board_verified":true,"closed_at":null,"days_open":281,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":281},"description":"Summary\nWe’re looking for a Senior Fullstack Engineer to help shape and scale a modern web experience for a fast-paced, consumer-facing product team. You’ll work closely with cross-functional stakeholders to deliver elegant, performant, and maintainable applications using TypeScript and React. This role is ideal for someone who possesses a high level of agency, a \"doer\" mentality, and the ability to maintain a full product vision while shipping high-quality code at speed.\nCore Requirements:\n- Mastery of TypeScript, React and Ruby on Rails for building complex, scalable web applications.\n- 5+ years of professional experience in frontend development with a proven track record of shipping production-grade software.\n- Demonstrated high level of agency and a proactive \"doer\" mentality, with the ability to hit the ground running and own features end-to-end.\n- Demonstrated experience executing comprehensive website rebrandings and implementing new user flows from design-ready specifications.\n- Proven ability to orchestrate complex backend payment flows and manage the long-tail technical work associated with data transfers.\n- Strong understanding of API design and the integration of third-party payment processing systems.\n- Experience ensuring high design-to-dev fidelity while migrating legacy components to a modern, rebranded UI.\n- Strong product sense and the ability to build for the long term while balancing immediate delivery needs.\n- Excellent understanding of modern frontend architecture, state management, and performance optimization.\n- Solid experience with unit testing and a commitment to maintaining high code quality through thoughtful testing practices.\n- Comfort navigating fast-paced environments and collaborating within cross-functional agile teams.\n- Strong eye for design-to-dev fidelity and a passion for creating fluid, responsive user interfaces.\nNice to Have:\n- Experience working with GraphQL APIs and modern data-fetching libraries.\n- Familiarity with CI/CD pipelines and automated deployment workflows for web applications.\n- Exposure to modern CSS-in-JS libraries or advanced styling frameworks.\n- Prior experience in the Trading, Brokerage, or Wealth Management industries is a big plus.","description_format":"text","description_chars":2233,"description_truncated":false,"requirements":{"experience_years_min":5,"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":[],"lifecycle":[{"event":"open","at":"2026-10-28T11:40:14Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.18,"p_room":0.28,"age_days":281,"expected_fill_days":22,"reasons":["conf:2","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/kake-senior-fullstack-ruby-on-railstypescriptreact-engineer","json_url":"https://alion.io/job/kake-senior-fullstack-ruby-on-railstypescriptreact-engineer.json","meta":{"generated_at":"2026-11-01T16:35:58Z","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":25555,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":4454565},"rest":"https://alion.io/mcp/rest/get_company?id=4454565"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fkake-senior-fullstack-ruby-on-railstypescriptreact-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%2Fkake-senior-fullstack-ruby-on-railstypescriptreact-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%2Fkake-senior-fullstack-ruby-on-railstypescriptreact-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/kake-senior-fullstack-ruby-on-railstypescriptreact-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fkake-senior-fullstack-ruby-on-railstypescriptreact-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3394095}},{"tool":"search_jobs","arguments":{"company":"kake.co","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3394095},"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"}}