{"id":952011,"url":"https://alion.io/job/piece-full-stack-developer","title":"Full Stack Developer","company":{"id":47106,"name":"Piece","domain":"piece.investments","url":"https://alion.io/company/piece","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["JP"],"hiring_countries_total":1,"salary":{"min":9000000,"max":12000000,"currency":"JPY","period":"year","gross":null,"usd_annual":78324},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-16T01:14:46Z","employer_posted_date":null,"last_verified_at":"2026-09-16T01:14:46Z","board_verified":false,"closed_at":null,"days_open":45,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":45},"description":"While this is a full stack role, it has a backend focus to it, where you’ll be helping us build and scale our robust infrastructure.\nResponsibilities\nBuild from scratch new products overseeing the complete development cycle.\nTake a proactive role and ownership of the products you will work on\nSetup the whole application development lifecycle, including: architecture design, development, tests strategy, deployment to production, monitoring, alerting and support\nBuild scalable software solutions that will grow rapidly in the next months minimizing technical debt\nWork on challenging problems that can have a direct impact on our users and company\nWork in a cross-functional team with design, product and operations\nMentor team members and share knowledge to make the team grow\nRequirements\n5+ years as a Fullstack developer or similar role in fast-paced environments, ideally startups or scaleups\nSignificant experience with Node.js based web framework such as Express.js or NestJS\nSignificant experience with ReactJS, Angular, or Vue.\nThis is a remote role, so you must hold valid work authorization in your country of residency. As we do not currently have an office in Japan, we are unable to support relocation here, nor candidates who need to work a Japanese employer to maintain their residency. We are considering opening an office in Japan in the future.\nNice to haves\nWhile not specifically required, tell us if you have any of the following.\nDevelopment experience in Fintech services\nExperience in integrating payment solutions/providers to a native platform\nExperience with React Native\nExperience with smart contract technology\nExperience with Solidity and/or Golang\nGood understanding of both relational (Postgres, MySql) and document (Mongo) databases.\nExperience in serverless cloud services (AWS, GCP or Azure) and dev ops framework/tools.","description_format":"text","description_chars":1860,"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":[{"name":"Japan","iso":"JP","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-16T01:32:19Z"}],"visa":[],"liveness":{"score":13,"band":"cold","label":"Long shot","p_open":0.4,"p_active":0.699,"p_room":0.45,"age_days":45,"expected_fill_days":29,"reasons":["seen:45","win:tail"],"computed_at":"2026-10-31T05:58:55Z"},"pay":{"stated_usd_annual":78324,"is_top_pay":false},"html_url":"https://alion.io/job/piece-full-stack-developer","json_url":"https://alion.io/job/piece-full-stack-developer.json","meta":{"generated_at":"2026-10-31T16:29:50Z","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":25786,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"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":47106},"rest":"https://alion.io/mcp/rest/get_company?id=47106"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpiece-full-stack-developer"},{"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%2Fpiece-full-stack-developer"},{"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%2Fpiece-full-stack-developer"},{"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/piece-full-stack-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpiece-full-stack-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":952011}},{"tool":"search_jobs","arguments":{"company":"piece.investments","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":952011},"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. 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