{"id":774827,"url":"https://alion.io/job/g-research-data-software-engineer","title":"Data Software Engineer","company":{"id":445185,"name":"G-Research","domain":"gresearch.com","url":"https://alion.io/company/g-research","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":88,"open_postings":61,"ghost_share":0.115,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":77,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","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":70000,"max_usd":171000,"period":"year","method":"role_country_seniority_unknown","sample_n":424},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C#","optional":false},{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"Delta Lake","optional":true},{"name":"Kubernetes","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-08-20T00:00:00Z","employer_posted_date":"2026-08-20","last_verified_at":"2026-11-01T20:34:03Z","board_verified":true,"closed_at":null,"days_open":74,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":73},"description":"We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity.\nFrom our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to amplify our teams’ most powerful ideas.\nAs part of our engineering team, you’ll shape the platforms and tools that drive high-impact research - designing systems that scale, accelerate discovery and support innovation across the firm.\nTake the next step in your career.\nThe role\nThe Data Serving Platform team sits at the centre of G-Research's core datasets, owning a suite of data-serving components responsible for massively parallelised access to data across our compute environment. The team provides both live and historical views of data, supporting critical workflows across the firm.\nThe vision is to create a simple, robust and user-friendly system that connects data providers and consumers, enabling them to seamlessly share data and analytics.\nKey responsibilities of the role include:\nDesigning, building and evolving production-grade trading platforms and services end-to-end\nOptimising software performance, throughput and efficiency at scale\nContributing to the reliability and operational excellence of critical systems\nApplying strong software engineering practices across testing, code quality, automation and observability\nParticipating in a shared production support rotation, responding to incidents, troubleshooting runtime issues and driving improvements\nWho are we looking for?\nThe ideal candidate will have the following skills and experience:\nStrong competency with at least one typed language such as Java, C# or C++\nExperience optimising software performance or efficiency\nDesirable:\nExperience with distributed software systems\nExperience with data processing or data serving systems\nExperience using Rust, C#, Python, Parquet, Arrow, Delta Lake or Kubernetes\nWhy join us?\nHighly competitive compensation plus annual discretionary bonus\nLunch provided (via Just Eat for Business) and dedicated barista bar\n35 days annual leave\n9% company pension contributions\nInformal dress code and excellent work/life balance\nComprehensive healthcare and life assurance\nCycle-to-work scheme\nMonthly company events\nG-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas-driven business and we place great value on diversity of experience and opinions.\nWe want to ensure that applicants receive a recruitment experience that enables them to perform at their best. 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