{"id":988871,"url":"https://alion.io/job/isam-helix-software-engineer","title":"Helix Software Engineer","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":null},"role":"Backend","role_family":"Backend","seniority":"senior","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":89000,"max_usd":171000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":91},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"Java","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-05-12T14:39:02Z","employer_posted_date":"2026-07-14","last_verified_at":"2026-10-05T00:48:12Z","board_verified":true,"closed_at":null,"days_open":145,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":144},"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:\nWe are looking for a talented and hands-on Java developer with experience in financial trading and execution systems, ideally within the equities space, to join the Helix Technology team.\nResponsibilities:\nManage and deliver the roadmap for the ISAM Helix Trading System, with a primary focus on trade execution and integration with middle- and back-office systems,\nWork closely with brokers to continuously improve algorithmic execution, incorporating feedback from the Execution Research team and coordinating A/B testing where required.\nSupport the onboarding of new execution brokers and implement approved execution improvements.\nFacilitate changes related to prime brokers or trading accounts.\nGenerate, maintain, and enhance Transaction Cost Analysis (TCA) reports.\nContribute to the architectural evolution of the Helix technology platform.\nProvide ongoing maintenance and support for the Helix trading system.\nParticipate in the production support rota following appropriate training.\nQualifications:\nStrong development experience in Java (Python experience is a plus).\nMinimum 5 years of relevant software development experience.\nPrior exposure to execution systems within a bank, hedge fund, or financial services firm.\nExperience in equities trading or related markets is highly desirable.\nDegree in a STEM discipline (e.g., Mathematics, Physics, Statistics, Computer Science).\nProven ability as a hands-on software engineer.\nPersonal Attributes:\nStrong communication and interpersonal skills.\nHighly analytical with excellent attention to detail.\nProactive, self-driven, and able to work collaboratively within a team environment.\nKey Outcomes: \nTake full ownership of multiple critical components within the Helix trading system, ensuring stability, scalability, and continuous improvement.\nDeliver on the roadmap for the ISAM Helix Trading and Execution platform.\nProduce clean, well-documented, and testable code, adhering to software engineering best practices.\nContinuously refine systems through performance optimisation, technical debt reduction, and automation initiatives.\nParticipate in the support rota, providing expertise and guidance on execution-related production issues.\nProactive, self-driven, and able to work collaboratively within a team environment.","description_format":"text","description_chars":3109,"description_truncated":false,"requirements":{"experience_years_min":5,"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":"2026-09-17T01:07:40Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.265,"p_room":0.28,"age_days":144,"expected_fill_days":24,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-10-04T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/isam-helix-software-engineer","json_url":"https://alion.io/job/isam-helix-software-engineer.json","meta":{"generated_at":"2026-10-05T01:37:19Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2127,"day_limit":5000,"remaining_today":2873,"minute_limit":60,"resets_at":"2026-10-06T00:00:00Z"}}}