{"id":893829,"url":"https://alion.io/job/ninetwothree-senior-full-stack-js-engineer","title":"Senior Full Stack JS Engineer","company":{"id":680656,"name":"NineTwoThree","domain":"ninetwothree.co","url":"https://alion.io/company/ninetwothree","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["AM"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"JavaScript","optional":false},{"name":"MySQL","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-10-08T13:18:07Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-11-07T09:58:30Z","board_verified":true,"closed_at":null,"days_open":29,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":29},"description":"Why Join Us?\n100% remote | Global team | Full-time\nIf you’re looking to work on cutting-edge AI products, solve challenging problems, and be part of a fast-moving, high-talent team, you’ll love it here.\nJoin NineTwoThree AI Studio, a remote-first product design and engineering studio, founded in 2012 and based in Boston. We build AI-powered web and mobile apps for established brands and large enterprises.\nYou’ll work withreally smart people -the kind of teammates who challenge you, push you forward, and make you better. We move fast and focus on getting things done.\nWe’ve been growing 20% every year for the last 5 years, which means there’s plenty of room for career growth and promotions. Our work speaks for itself-some of our customers found us through five layers of referrals. That’s how much people appreciate what we do.\nWe run on clear processes and strong leadership, so while we move quickly, we don’t do chaos. We do high-quality work, and we do it right.\nWe focus on products with a positive impact in various domains from sports and health, to logistics and nuclear. But if you’re into gambling, adult entertainment, or crypto, we’re not your place.\nRequirements\nWhat You’ll Do\nLead, not just code - Seniors at NineTwoThree don’t just write great code-they lead projects, guide teams, and ensure execution quality:\nConnect the dots between product vision, technical feasibility, and business needs.\nCommunicate options, trade-offs, costs, and timelines clearly to both our team and client.\nLead projects end-to-end - from technical strategy to execution.\nArchitect solutions and apply best practices for scalable, AI-powered products.\nGuide and mentor engineers, ensuring quality while delivering fast.\nTranslate business needs into technical decisions, explaining trade-offs and timelines.\nSolve hard problems, direct implementation, and coordinate technical challenges with clients\nWho We’re Looking For\n\nTrue senior engineers - not just people with years of experience, but those who own solutions and drive execution.\n 5+ years of experience in Full Stack Software Development (React, Node.js, JavaScript, TypeScript, SQL)\nStrong knowledge of cloud platforms (AWS, Azure or GCP).\nClear and thorough understanding of design patterns and software development best practices\n Great communicators who can explain options, trade-offs, and technical details to clients and teams.\nAbility to break down complex problems into manageable tasks;\nPassion maintaining code style and standards and holding people accountable;\nHands-on experience with microservices architecture;\nExperience with React.js, Node.js, JavaScript and Typescript (at least 5 years);\nRESTful API design and implementation;\nOAuth and single sign-on (SAML);\nLeaders who ensure execution quality, push teams forward, and keep projects on track.\nStrong communication and analytical skills\nRelational and no-SQL databases - MySQL, PostgreSQL, Redis etc;\nSolid understanding of principles of JavaScript/TypeScript languages\nAbility to freely express /present/discuss ideas in English (B2-C1 level)\nFlexibility with working hours to participate in meetings with Eastern USA.\nNot for you? If you’re looking for a pure coding role where someone else makes the decisions, this isn’t it.\nBenefits\nWhat We Offer\nAnnual paid vacation: 20 days-off per year during the first 3 years, further increasing to25 days in later years.\nPaid sick leave, 10 national holidays and 2 company days-off.\nWell-being budget.\nHealth Insurance allowance.\nMaternity/paternity leave.\nAccounting assistance.\nReimbursement of expenses for professional development courses/certifications (up to 100% in agreement with the Manager).\nHardware upon business needs.\nStrong positive engineering culture, a tightly-knit team of professionals with a good sense of humor.\nWhat’s The Process\nWe make the process fast and responsive. Short HR interview, Technical Q&A, Hands-on Practical Session (no bubble sorts), CTO interview (sometimes), Offer.\nApply now and lead the next generation of AI-powered products.","description_format":"text","description_chars":4052,"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":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Health insurance","Professional development"],"hiring_locations":[{"name":"Armenia","iso":"AM","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-14T08:44:17Z"},{"event":"close","at":"2026-09-26T01:46:02Z"},{"event":"reopen","at":"2026-10-08T09:01:20Z"}],"visa":[],"liveness":{"score":62,"band":"ok","label":"Likely open","p_open":1,"p_active":0.828,"p_room":0.75,"age_days":29,"expected_fill_days":35,"reasons":["conf:2","win:late"],"computed_at":"2026-11-07T05:47:08Z"},"pay":null,"html_url":"https://alion.io/job/ninetwothree-senior-full-stack-js-engineer","json_url":"https://alion.io/job/ninetwothree-senior-full-stack-js-engineer.json","meta":{"generated_at":"2026-11-07T12:32:25Z","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":14159,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":680656},"rest":"https://alion.io/mcp/rest/get_company?id=680656"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fninetwothree-senior-full-stack-js-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%2Fninetwothree-senior-full-stack-js-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%2Fninetwothree-senior-full-stack-js-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/ninetwothree-senior-full-stack-js-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fninetwothree-senior-full-stack-js-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":893829}},{"tool":"search_jobs","arguments":{"company":"ninetwothree.co","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":893829},"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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