{"id":1253050,"url":"https://alion.io/job/white-squire-technologies-quant-developer","title":"Quant Developer","company":{"id":3806631,"name":"White Squire Technologies","domain":"39kpartners.com","url":"https://alion.io/company/white-squire-technologies","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Gurgaon, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":13500,"max_usd":31000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":12},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Grafana","optional":false},{"name":"Linux","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"WebSockets","optional":false},{"name":"Bash","optional":true}],"status":"live","first_seen_at":"2026-09-11T06:30:20Z","employer_posted_date":null,"last_verified_at":"2026-09-11T06:30:20Z","board_verified":false,"closed_at":null,"days_open":36,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":36},"description":"QUANTITATIVE DEVELOPER (CRYPTO HFT / MARKET MAKING)\n\n39k Group is a high-frequency trading firm operating globally across centralized crypto exchanges. We specialize in ultra-low-latency strategies and market making, scaling infrastructure to handle billions of events daily with microsecond-level performance.\n\nROLE :\n\n- Design, build, and operate ultra-low-latency automated trading systems for crypto market making and cross-exchange hedging. The core mandate is tick-to-trade latency optimization - from a market-data frame arriving on the socket to an order leaving the wire - in mission-critical, latency-sensitive codebases.\n\nCORE RESPONSIBILITIES :\n\n- Design and maintain high-performance, high-throughput trading systems in Rust and C++, built to process massive market-data volumes with consistent, predictable performance under load.\n\n- Apply metal-level performance engineering : custom allocators, lock-free and wait-free concurrency, zero-copy parsing, cache- and branch-aware data structures, aggressive compiler tuning (LTO, target-CPU/instruction-set tuning), and elimination of per-tick/per-order allocations on the hot path.\n\n- Architect concurrency and runtime/threading models that isolate hot trading loops from background work to avoid tail stalls, scaling cleanly across available hardware.\n\n- Build exchange connectivity and market-data feed handlers across heterogeneous transports and protocols : TCP/UDP sockets, WebSocket, FIX, and SBE binary decoders; HMAC-authenticated sessions, robust reconnect/dedup logic, and venue-specific edge cases.\n\n- Implement market-making and order-book imbalance strategies across many instruments concurrently, plus cross-exchange hedging engines for real-time inventory and risk offset.\n\n- Build and maintain a low-latency Order Management System (OMS) - order placement, modification, and cancellation, lifecycle and state tracking, ack/fill handling, rate limiting, and reliable in-flight order accounting under high message rates.\n\n- Write clean, well-structured, maintainable code with sound OOP and systems design, clear ownership of modules, and thorough testing of hot-path correctness (including golden wire-format tests).\n\nREQUIRED SKILLS :\n\n- Strong C++ and/or Rust with deep command of data structures, algorithms, and OOP; production track record on low-latency, performance-sensitive systems.\n\n- Mastery of concurrency and asynchronous programming - lock-free techniques, memory ordering, synchronization, and their tail-latency costs.\n\n- Solid grounding in Linux, networking, and socket-level programming - TCP and UDP, kernel/userspace boundaries, TCP tuning (TCP_NODELAY, etc.) - and the cost of allocations, locks, and syscalls.\n\n- Hands-on with exchange protocols : WebSocket, FIX, SBE, and binary/HMAC-authenticated APIs.\n\n- Production observability (Prometheus / OpenTelemetry / Grafana) and Python for tooling and analysis.\n\n- A bias toward clean, structured, well-documented code and rigorous engineering discipline.\n\nNICE TO HAVE :\n\n- Prior crypto or traditional HFT / market-making / execution-systems experience.\n\n- Kernel-bypass / NUMA / multi-core optimization (e.g. DPDK, RDMA) and low-level OS/network tuning.\n\n- Experience integrating with centralized or decentralized exchange APIs.\n\n- Comfortable with scripting languages such as Python and Bash for automation, tooling, and ops.\nSkills\nC++, Quant, Rust, Algorithmic Trading, HFT, Data Observability","description_format":"text","description_chars":3444,"description_truncated":false,"requirements":{"experience_years_min":1,"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":["Crypto Exchanges"],"lifecycle":[{"event":"open","at":"2026-09-25T18:04:06Z"}],"visa":[],"liveness":{"score":14,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.503,"p_room":0.45,"age_days":35,"expected_fill_days":19,"reasons":["seen:35","win:tail","comp:junior"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/white-squire-technologies-quant-developer","json_url":"https://alion.io/job/white-squire-technologies-quant-developer.json","meta":{"generated_at":"2026-10-17T22:20:11Z","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":139,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":3806631},"rest":"https://alion.io/mcp/rest/get_company?id=3806631"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwhite-squire-technologies-quant-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%2Fwhite-squire-technologies-quant-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%2Fwhite-squire-technologies-quant-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/white-squire-technologies-quant-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwhite-squire-technologies-quant-developer"}]}