{"id":1245199,"url":"https://alion.io/job/pax-markets-founding-principal-hardware-engineer","title":"Founding Principal Hardware Engineer","company":{"id":3779311,"name":"PAX Markets","domain":"pax.markets","url":"https://alion.io/company/pax-markets","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Work at a Startup","truth_index":null},"role":"Hardware","role_family":"Hardware","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Redwood City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":200000,"max":225000,"currency":"USD","period":"year","gross":null,"usd_annual":225000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"C++","optional":false},{"name":"Protobuf","optional":false},{"name":"Rust","optional":false},{"name":"SystemVerilog","optional":false},{"name":"Verilog","optional":false},{"name":"VHDL","optional":false}],"status":"live","first_seen_at":"2026-09-25T17:18:06Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-10-19T19:06:51Z","board_verified":true,"closed_at":null,"days_open":24,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":24},"description":"What you’ll do:\nAs founding principal hardware engineer, you will lead the design and in-production implementation of an exchange and co-located trading facility on a single silicon device. You will lead development of PAX core technology and set future design directions.\nPAX ultra low-latency in-silicon matching engine:\nPAX is building the world's first exchange and co-located trading facility on a chip. We will go-to-market using AWS F2 FPGA instances and follow-on with an ASIC design that combines network aggregation with exchange functionality.\nPAX provides the fastest tick-to-trade and market data publication in the world, across all exchanges (e.g. faster than NYSE, Deutsche Börse, etc.).\nExchange integrated high frequency trading logic:\nThe PAX λ API provides traders with on-chip exchange integrated HFT decision logic. Using the λ API, traders can make markets or take arbitrage opportunities. The λ API enables traders to respond to market events the very instant the information is registered in the exchange matching engine.\nPAX business model:\nPAX sells access to its ultra-low latency λ API and offers trading otherwise for free. Existing exchanges typically offer rebates for liquidity providers (\"makers\") and charge fees to liquidity takers (the \"maker/taker\" fee structure). At PAX when λ and non-λ orders pair together, the free-tier order is given a cash rebate regardless of whether their order was characterized as making or taking. PAX is the first exchange to offer zero-fee trading and rebates for both making and taking.\nDeep dives on PAX market structure & technology:\nOn-exchange trading incentives with inherent price competition.\n\nPAX rebates & fees.\n\nPAX λ API.\n\nRelevant background:\nCandidates with experience in high frequency trading (HFT) or at an exchange are encouraged to apply.\nSkills:\nSystemVerilog\nFPGA or ASIC design experience\nRust and/or C++\nHFT\nProtobuf\nCuriosity and ability to learn\nPassion for trading and markets","description_format":"text","description_chars":1971,"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":"2026-09-25T17:18:06Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 1","filings_12m":1,"filings_prev_12m":0,"green_card_filings_12m":0,"median_offered_wage_usd":252500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":59,"band":"ok","label":"Likely open","p_open":1,"p_active":0.793,"p_room":0.75,"age_days":23,"expected_fill_days":30,"reasons":["conf:2","velocity","win:late"],"computed_at":"2026-10-19T05:45:15Z"},"pay":{"stated_usd_annual":225000,"is_top_pay":false},"html_url":"https://alion.io/job/pax-markets-founding-principal-hardware-engineer","json_url":"https://alion.io/job/pax-markets-founding-principal-hardware-engineer.json","meta":{"generated_at":"2026-10-19T22:20:52Z","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":1316,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"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":3779311},"rest":"https://alion.io/mcp/rest/get_company?id=3779311"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpax-markets-founding-principal-hardware-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%2Fpax-markets-founding-principal-hardware-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%2Fpax-markets-founding-principal-hardware-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/pax-markets-founding-principal-hardware-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpax-markets-founding-principal-hardware-engineer"}]}