{"id":1016449,"url":"https://alion.io/job/gsr-quant-developer","title":"Quant Developer","company":{"id":172251,"name":"GSR","domain":"gsr.io","url":"https://alion.io/company/gsr","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":76000,"max_usd":171000,"period":"year","method":"role_country_seniority_unknown","sample_n":138},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false}],"status":"live","first_seen_at":"2026-09-17T15:19:44Z","employer_posted_date":"2026-09-17","last_verified_at":"2026-10-13T20:23:03Z","board_verified":true,"closed_at":null,"days_open":26,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":26},"description":"GSR Markets\nGSR Markets brings together market making, high-touch OTC trading, and treasury solutions for clients across the crypto ecosystem, alongside our own proprietary trading activity. We provide liquidity across more than 60 exchanges globally, execute bespoke and complex trades with dedicated coverage, and support clients with treasury management, liquidity planning, and risk strategies as their businesses scale.\nPerformance runs through everything the division does, measured in uptime, execution quality, and the strength of the relationships we build with clients and counterparties. It is where GSR's market expertise, and our own capital, translates most directly into results.\nRole Overview:\nJoin a high-performance team at the intersection of trading and technology. You will work closely with traders and engineers to design, test, and implement strategies across market-making, prop, and OTC, and contribute to the low-latency systems (built in Rust) that put those strategies into production.\nSuccess in this role requires strong quant and market intuition, curiosity, and a proactive mindset. You'll be working on complex, performance-critical problems where quick learning, ownership, and continuous improvement are key to making an impact.\nKey Responsibilities:\nResearch, build, and refine trading strategies across market-making, prop, and OTC.\nAnalyze market microstructure and pricing to identify and evaluate trading opportunities.\nWork closely with traders, researchers, and engineers to implement strategies into live trading systems, contributing to development in Rust where needed.\nBuild tools and infrastructure to support research, including analytics and optimisation workflows.\nMonitor live strategy performance and investigate issues in real time, contributing to the stability and reliability of live trading.\nRequirements:\nRust experience is beneficial; if not, a demonstrable interest in mastering it is essential.\nStrong quantitative foundations, with the ability to reason rigorously about pricing, risk, and market structure.\nGenuine interest in trading systems, financial markets, or market microstructure, with familiarity in concepts such as limit order books, pricing, or real-time systems.\nExperience writing efficient, performance-conscious code in at least one language (e.g., Python, C++, Rust) - comfort picking up new languages is valued.\nStrong foundations in algorithms and data structures.\nDegree in Mathematics, Physics, Computer Science, or a related field - or equivalent practical experience.\nWhat We Offer:\nA collaborative and transparent company culture founded on Integrity, Innovation, and Performance.\nBenefits such as Healthcare, Dental, Vision, Retirement Planning, 30 days holiday, and free lunches when in the office (benefits vary depending on employment location).\nRegular Town Halls, team lunches, and drinks.\nA Corporate and Social Responsibility program as well as charity fundraising matching and volunteer days.\nGSR is proudly an Equal Employment Opportunity employer. We do not discriminate based upon any applicable legally protected characteristics such as race, religion, color, country of origin, sexual orientation, gender, gender identity, gender expression, or age. We operate a meritocracy; all aspects of people engagement from the decision to hire or promote as well as our performance management process will be based on the business needs and individual merit, competence in the role. 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