{"id":2935262,"url":"https://alion.io/job/barclays-quantitative-developer-2","title":"Quantitative Developer","company":{"id":12541,"name":"Barclays","domain":"home.barclays","url":"https://alion.io/company/barclays-uk","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":95,"open_postings":177,"ghost_share":0,"stale_share":0.333,"repost_share":0.102,"time_to_fill_p50_days":16,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":"full_time","work_mode":"hybrid","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":69000,"max_usd":157000,"period":"year","method":"role_country_seniority_unknown","sample_n":183},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Docker","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-10-20T15:54:00Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-10-22T03:24:07Z","board_verified":false,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Job Description\nPurpose of the role\nTo design, develop, and evolve trading, risk management and other platforms that facilitate trading and regulatory objectives within the investment banking domain.\nAccountabilities\nDesign, development, and maintenance of high-performance trading platforms, risk systems, and applications catering to the needs of traders and market participants.\nCollaboration with traders, strategists, and stakeholders to gather requirements and translate them into scalable and efficient technological solutions.\nImplementation of new features, enhancements, and functionalities on trading platforms to improve performance, reliability, and user experience.\nStay updated on technological advancements, industry trends, and best practices to drive innovation and continuous improvement in trading platforms.\nCollaboration with cross-functional teams including business aligned SM&D teams, strats, compliance, and IT to address system issues and implement solutions.\nVice President Expectations\nTo contribute or set strategy, drive requirements and make recommendations for change. Plan resources, budgets, and policies; manage and maintain policies/ processes; deliver continuous improvements and escalate breaches of policies/procedures..\nIf managing a team, they define jobs and responsibilities, planning for the department’s future needs and operations, counselling employees on performance and contributing to employee pay decisions/changes. They may also lead a number of specialists to influence the operations of a department, in alignment with strategic as well as tactical priorities, while balancing short and long term goals and ensuring that budgets and schedules meet corporate requirements..\nIf the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L - Listen and be authentic, E - Energise and inspire, A - Align across the enterprise, D - Develop others..\nOR for an individual contributor, they will be a subject matter expert within own discipline and will guide technical direction. They will lead collaborative, multi-year assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions..\nAdvise key stakeholders, including functional leadership teams and senior management on functional and cross functional areas of impact and alignment.\nManage and mitigate risks through assessment, in support of the control and governance agenda.\nDemonstrate leadership and accountability for managing risk and strengthening controls in relation to the work your team does.\nDemonstrate comprehensive understanding of the organisation functions to contribute to achieving the goals of the business.\nCollaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategies.\nCreate solutions based on sophisticated analytical thought comparing and selecting complex alternatives. In-depth analysis with interpretative thinking will be required to define problems and develop innovative solutions.\nAdopt and include the outcomes of extensive research in problem solving processes.\nSeek out, build and maintain trusting relationships and partnerships with internal and external stakeholders in order to accomplish key business objectives, using influencing and negotiating skills to achieve outcomes.\nAll colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship - our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset - to Empower, Challenge and Drive - the operating manual for how we behave.\nJoin us at Barclays as a Quant Developer in Analytics Platform team within the wider Core Strats and Quantitative Analytics (QA) group. The Analytics Platform team oversees the development standards for QA, and drives the efficiency and simplification of the technological landscape. This includes providing the interface and orchestration layer to in-house analytics libraries.\nThe role focuses on development of the Analytic Service, a major initiative aimed at redesigning APIs to improve how analytic libraries interact with IT systems and end-users. The candidate will collaborate with multiple teams, including IT, QA Asset classes, and Front Office, to ensure alignment with the Analytics Platform strategic vision.\nTo be successful as a Quantitative Developer, you must have the following essential skills:\nStrong python skills, encompassing the full lifecycle of design, development, testing, release and maintenance.\nGood C++ coding skills. The role will involve making incremental changes to existing in-house libraries in modern C++.\nThe role will involve liaising with end-users, working with colleagues in a geographically distributed team, and collaboration with quant and technical teams. Hence strong communications skills are required.\nExperience in financial application development, such as pricing and risk systems, ideally in the Rates space.\nSome other highly valued skills may include:\nFundamentals of how Rates instruments such as bonds, swaps and swaptions are priced and risked.\nExperience of building and maintaining REST APIs.\nDevelopment experience on Windows and Linux platforms, including use of Docker.\nKnowledge of XML and associated transforms.\nYou may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills.\nThe role is based out of our Canary Wharf, London office.\n#LI-Hybrid","description_format":"text","description_chars":6065,"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":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commercial & Retail Banks","Cards & Card Issuing","Wealth Management & Financial Advisors","Investment Banking & M&A Advisory"],"lifecycle":[{"event":"open","at":"2026-10-20T15:54:00Z"}],"visa":[],"liveness":{"score":79,"band":"hot","label":"Hiring now","p_open":0.9,"p_active":0.877,"p_room":1,"age_days":3,"expected_fill_days":16,"reasons":["conf:50","velocity","win:early","comp:brand"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/barclays-quantitative-developer-2","json_url":"https://alion.io/job/barclays-quantitative-developer-2.json","meta":{"generated_at":"2026-10-24T06:18:00Z","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":9092,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":12541},"rest":"https://alion.io/mcp/rest/get_company?id=12541"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbarclays-quantitative-developer-2"},{"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%2Fbarclays-quantitative-developer-2"},{"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%2Fbarclays-quantitative-developer-2"},{"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/barclays-quantitative-developer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbarclays-quantitative-developer-2"}]}