{"id":1968813,"url":"https://alion.io/job/isam-java-quantitative-developer-isam-securities","title":"Java Quantitative Developer - iSAM Securities","company":{"id":707053,"name":"ISAM","domain":"isam.com","url":"https://alion.io/company/isam","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":"2026-10-24T06:02:35Z"}},"role":"Backend","role_family":"Backend","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":73000,"max_usd":180000,"period":"year","method":"role_country_seniority_unknown","sample_n":404},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-06T15:52:06Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-10-25T02:20:27Z","board_verified":true,"closed_at":null,"days_open":18,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":18},"description":"iSAM is an innovative, financial technology firm specialising in quantitative trading, comprised of iSAM Funds and iSAM Securities.\niSAM Securities regulated by the FCA, SFC, and CIMA registered, is a leading algorithmic trading firm and trusted electronic market maker, providing liquidity, technology and prime services to institutional clients and trading venues globally. The firm offers full-service prime brokerage and execution via its cutting-edge proprietary technology, as well as market leading analytics, cleared through the group’s bank Prime Brokers.\niSAM Funds is an alternative asset manager specialising in systematic investing. Each strategy is unique, provides a specialist quantitative approach and is designed to deliver highly diversifying absolute returns for institutional portfolios.\nAbout the Role:\nISAM Securities trading platforms are entirely owned and build by in-house teams. We typically\nuse Java (and C++) for server-side development with KDB and Postgres data storage, with\nfinancial modelling done in Python.\nThe platforms are under active development, and entire areas are being re-implemented from\nthe ground up. All work in this team is on the critical path - we handle more than 4T USD\nannually -everything counts!\nResponsibilities:\nAs part of the small, highly skilled ISAM Securities Quantitative Development team, you will beexpected to:\n\nBuild ultra high-performance front-office software for pricing, execution and riskmanagement.\n\nWork closely with our quantitative research team to reliably implement models in ascalable and HA fashion.\n\nDevelop in a manner to reflect the 24x7 operation of our trading platform, includingdistributed systems design and the deployment of software releases whilst trading\n\nQualifications:\nOutstanding Java coding with an interest in finance and technology.\nExperience of very high performance zero-GC and lock free software engineering in Java.\nExperience of and understanding of the LMAX set of open-sourced software tools(Aeron, Disruptor, SBE, Artio, Agrona).\n\nExperience of solving HA problems and distributed systems challenges is useful(especially Aeron cluster / Raft).\n\nAny knowledge of Python/C++ and scientific computing would be advantageous.\nPragmatic mindset with strong problem-solving abilities.\nExcellent attention to detail and organisational skills.\nSelf-motivated with ability to work with minimal supervision.\nPersonal Attributes:\nEnthusiasm.\nStrong communication skills.\nAbility to work collaboratively.\nAttention to detail.\nAbility to adapt in a rapidly evolving environment.","description_format":"text","description_chars":2575,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Hedge Funds & Alternative Investments"],"lifecycle":[{"event":"open","at":"2026-10-06T18:24:52Z"}],"visa":[],"liveness":{"score":55,"band":"ok","label":"Likely open","p_open":1,"p_active":0.729,"p_room":0.75,"age_days":17,"expected_fill_days":23,"reasons":["conf:2","win:late"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/isam-java-quantitative-developer-isam-securities","json_url":"https://alion.io/job/isam-java-quantitative-developer-isam-securities.json","meta":{"generated_at":"2026-10-25T04:38:36Z","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":6128,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"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":707053},"rest":"https://alion.io/mcp/rest/get_company?id=707053"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fisam-java-quantitative-developer-isam-securities"},{"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%2Fisam-java-quantitative-developer-isam-securities"},{"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%2Fisam-java-quantitative-developer-isam-securities"},{"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/isam-java-quantitative-developer-isam-securities\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fisam-java-quantitative-developer-isam-securities"}]}