{"id":2463427,"url":"https://alion.io/job/janus-henderson-quantitative-developer","title":"Quantitative Developer","company":{"id":704052,"name":"Janus Henderson","domain":"janushenderson.com","url":"https://alion.io/company/janus-henderson","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":null,"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":{"min":110000,"max":125000,"currency":"USD","period":"year","gross":null,"usd_annual":125000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Claude Code","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"CI/CD","optional":true},{"name":"GitHub","optional":true}],"status":"live","first_seen_at":"2026-08-06T07:00:00Z","employer_posted_date":"2026-08-06","last_verified_at":"2026-10-14T09:15:16Z","board_verified":true,"closed_at":null,"days_open":69,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":69},"description":"Why work for us?\nA career at Janus Henderson is more than a job, it’s about investingin a brighter future together.\nOur Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right.\nOur Values are key to driving our success, and are at the heart of everything we do:\nClients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust\nIf our mission, values, and purpose align with your own, we would love to hear from you!\nYour opportunity\nPartner with asset allocation PMs and researchers to take ideas from notebook to production: signals, CMAs, optimization, portfolio construction, rebalancing rules, and attribution.\nBuild and extend the team's research platform: data ingestion, back testing, scenario analysis, portfolio construction, monitoring, and reporting.\nOwn the multi-asset data layer: market data, macro, fundamentals, fund and index data, internal holdings, with quality control the PMs actually trust.\nUse AI coding agents daily for prototyping, refactoring, testing, review, and documentation. Bring opinions on where they help and where they hurt.\nBuild internal AI-backed tooling for the team where it earns its keep: research workflows, client-reporting drafts, commentary support, meeting prep.\nWrite production code that other quants want to build on. Own reliability, testing, and observability for what you ship.\nMentor teammates on effective AI-augmented engineering practice.\nCarry out other duties as assigned\nWhat to expect when you join our firm\nHybrid working and reasonable accommodations\nGenerous Holiday policies\nPaid volunteer time to step away from your desk and into the community\nSupport to grow through professional development courses, tuition/qualification reimbursement and more\nMaternal/paternal leave benefits and family services\nComplimentary subscription to Headspace - the mindfulness app\nCorporate membership to ClassPass and other health and well-being benefits\nUnique employee events and programs including a 14er challenge\nComplimentary beverages, snacks and all employee Happy Hours\nMust have skills\nHave built industrial-scale enterprise-quality quantitative/systematic models based on specs provided by PM's. \nHave deployed quantitative/systematic models to production at non trivial size. Have monitored operational performance of these models and taken ownership of making sure the models behave properly\nAre familiar with the SDLC (eg testing/deployment)\nAre heavy users of modern AI tools (claude code/codex/opencode/pi/ampcode/factory droid/cursor/cline)\nHave written extensive documentation about the implementation of a model.\nNice to have skills\nWorking knowledge of financial markets preferred \nKnowledge of Excel preferred \nGithub (or other version control), CI/CD and/or cloud services experience is beneficial \nExcellent interpersonal, relationship building and customer service skills \nStrong econometrics and statistics background, experience in asset pricing empirical work\nPassionate about financial markets with a curiosity about investing \nSupervisory responsibilities\nNo\nPotential for growth\nMentoring\nLeadership development programs\nRegular training\nCareer development services\nContinuing education courses\nCompensation information\nThe base salary range for this position is $110,000 - $125,000. This range is estimated for this role. Actual pay may be different. This position will be open through August 31, 2026.\nColorado law requires an estimated closing date for job postings. Please don't be discouraged from applying if you see this date has passed.\nAt Janus Henderson Investors we’re committed to an inclusive and supportive environment. We believe diversity improves results and we welcome applications from candidates from all backgrounds. Don’t worry if you don’t think you tick every box, we still want to hear from you! We understand everyone has different commitments and while we can’t accommodate every flexible working request, we’re happy to be asked about work flexibility and our hybrid working environment. If you need any reasonable accommodations during our recruitment process, please get in touch and let us know at .\n#LI-CH2 #LI-Hybrid\nAnnual Bonus Opportunity: Position may be eligible to receive an annual discretionary bonus award from the profit pool. The profit pool is funded based on Company profits. Individual bonuses are determined based on Company, department, team and individual performance.\nBenefits: Janus Henderson is committed to offering a comprehensive total rewards package to eligible employees that includes; competitive compensation, pension/retirement plans, and various health, wellbeing and lifestyle benefits. To learn more about our offerings please visit the Why Join Us section on the career page here.\nJanus Henderson Investors is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. All applications are subject to background checks.\nJanus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee’s job functions (as determined by Janus Henderson at its sole discretion).\nYou should be willing to adhere to the provisions of our Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities. Applicants’ past political contributions or activity may impact applicants’ eligibility for this position.\nYou will be expected to understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role.","description_format":"text","description_chars":6129,"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":["Flexible schedule","Hybrid work","Professional development","Retirement plans"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Adventure Tourism","Asset Management & Funds"],"lifecycle":[{"event":"open","at":"2026-10-13T17:50:14Z"}],"visa":[],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.355,"p_room":0.28,"age_days":68,"expected_fill_days":25,"reasons":["conf:3","win:tail","crowd:"],"computed_at":"2026-10-14T06:34:16Z"},"pay":{"stated_usd_annual":125000,"is_top_pay":false},"html_url":"https://alion.io/job/janus-henderson-quantitative-developer","json_url":"https://alion.io/job/janus-henderson-quantitative-developer.json","meta":{"generated_at":"2026-10-14T13:25:25Z","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":16396,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":704052},"rest":"https://alion.io/mcp/rest/get_company?id=704052"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fjanus-henderson-quantitative-developer"},{"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%2Fjanus-henderson-quantitative-developer"},{"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%2Fjanus-henderson-quantitative-developer"},{"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/janus-henderson-quantitative-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fjanus-henderson-quantitative-developer"}]}