{"id":716590,"url":"https://alion.io/job/ellipsislabs-senior-product-engineer","title":"Senior Product Engineer","company":{"id":673500,"name":"Ellipsis Labs","domain":"ellipsislabs.xyz","url":"https://alion.io/company/ellipsislabs","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"D","score":51,"open_postings":11,"ghost_share":0.818,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":170000,"max":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"DeFi","optional":false},{"name":"React.js","optional":false},{"name":"Solana","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2024-02-20T21:23:44Z","employer_posted_date":"2024-02-20","last_verified_at":"2026-10-31T20:08:04Z","board_verified":true,"closed_at":null,"days_open":984,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":983},"description":"Ellipsis Labs is a profitable, venture-backed New York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our long-term goal is to build a better financial system.\nOur flagship product, Phoenix Perpetuals, brings professional-grade perpetual futures to Solana. Building on our experience developing efficient markets, Ellipsis Labs also operates SolFi, a proprietary automated market maker that provides efficient liquidity for key trading pairs. Our foundational product, Phoenix Legacy, is a limit order book on the Solana blockchain that established our expertise in operating high-performance markets. Combined, these products have facilitated over $285B in trading volume across Solana markets.\nThe Opportunity\nEllipsis Labs is seeking a Senior Product Engineer to join our team. In this role, you will:\nSpec, build, and maintain professional-grade applications\n\nDrive ambitious product initiatives (which may include entirely new product lines) from inception to completion: specification, architecture, implementation, testing, monitoring, and maintenance\n\nQualifications\nRequired\n3+ years of experience building user-facing software products with high quality and well-documented production code\n\nExperience building great UX with modern frontend frameworks, specifically React + TypeScript\n\nAbility to work across the product engineering stack\n\nAbility to make informed product decisions based on relevant business context\n\nDeep respect and empathy for users\n\nA demonstrated track record of high agency, willingness to dive into unfamiliar technical and non-technical areas, and a team-first attitude\n\nPassion for decentralized finance\n\nPreferred\nExperience working with blockchain technology, specifically Solana\n\nInterest in quant trading or fintech\n\nProduct design or product management experience","description_format":"text","description_chars":1871,"description_truncated":false,"requirements":{"experience_years_min":3,"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":["Blockchain & Crypto"],"lifecycle":[{"event":"open","at":"2026-09-11T06:12:15Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.288,"p_room":0.28,"age_days":983,"expected_fill_days":28,"reasons":["conf:0","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-31T05:58:55Z"},"pay":{"stated_usd_annual":250000,"is_top_pay":true},"html_url":"https://alion.io/job/ellipsislabs-senior-product-engineer","json_url":"https://alion.io/job/ellipsislabs-senior-product-engineer.json","meta":{"generated_at":"2026-10-31T22:58:45Z","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":35834,"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":673500},"rest":"https://alion.io/mcp/rest/get_company?id=673500"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fellipsislabs-senior-product-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%2Fellipsislabs-senior-product-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%2Fellipsislabs-senior-product-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/ellipsislabs-senior-product-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fellipsislabs-senior-product-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":716590}},{"tool":"search_jobs","arguments":{"company":"ellipsislabs.xyz","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":716590},"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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