{"id":3409289,"url":"https://alion.io/job/kharon-sr-data-scientist-retrieval-agentic-systems-2","title":"Sr. Data Scientist, Retrieval & Agentic Systems","company":{"id":63402,"name":"Kharon","domain":"kharon.com","url":"https://alion.io/company/kharon","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Pinpoint","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":95000,"max":120000,"currency":"GBP","period":"year","gross":null,"usd_annual":159706},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"Embeddings","optional":false},{"name":"GDPR","optional":false},{"name":"Hybrid Search","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"LLM","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Reranking","optional":false}],"status":"live","first_seen_at":"2026-10-27T17:12:37Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-30T03:29:30Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Location: London, UK\nAnnual Remuneration: £105,000 - £120,000 and discretionary annual bonus\nPay Frequency: Monthly\nProbationary Period: 180 days\nWork Arrangement: Hybrid, 3-days per week\n\nTL;DR Kharon is seeking a full-time Senior Data Scientist, Retrieval & Agentic Systems based in London.\nRESPONSIBILITIES:\nOwn and advance content discovery in Corestream, improving how customers find, explore, and engage with relevant risk intelligence, while helping shape the technical direction of discovery capabilities across Kharon's products.\nRedesigning and improving Kharon's hybrid search capabilities, opening new avenues for content discovery - drawing on modern approaches including BM25 tuning, semantic distance, RAG, reranking, and graph-based signals that go beyond traditional semantic similarity.\nExplore and build new discovery experiences, including agentic search, intelligent content categorization, personalized feeds, and systems that surface relevant connections across large collections of intelligence.\nDriving the evolution of Kharon's narrative generation pipeline - how we take graph and analytical data and transform it into compelling, accurate written intelligence for customers.\nOwn problems end to end, from identifying opportunities and evaluating approaches to prototyping, implementing, deploying, and continuously improving production systems.\nCollaborate closely with Product, Data Science, and Engineering, influencing priorities and architectural decisions while maintaining a strong hands-on contribution.\n\nQUALIFICATIONS:\nA proven interest or experience in global security, financial crimes, sanctions, export controls, or related domains\n3+ years of experience in Data Science, AI Engineering, ML Engineering, or related software engineering roles\nHands-on experience in information retrieval, including experience with some combination of lexical search, embeddings, vector search, hybrid retrieval, ranking, reranking, and retrieval evaluation\nPractical experience building LLM-powered applications, RAG pipelines, or agentic workflows.\nStrong Python skills and the software engineering ability to take an idea from prototype to a reliable, maintainable production implementation\nDemonstrated initiative and technical ownership - a track record of tackling ambiguous problems independently, challenging assumptions, and driving solutions forward while working with stakeholders\nCuriosity and a willingness to experiment with emerging approaches while maintaining a pragmatic focus on what actually works\nBonus: Experience with graph-aware search or integrating knowledge graph outputs into retrieval systems\n\nABOUT KHARON:\nKharon operates at the nexus of global security and is on a mission to revolutionize the current landscape. We take complex data as it relates to global security and empower our clients to not only understand the risk associated with their potential business relationships but to operationalize that data so that they can make the best and most informed decisions possible.\n\nFrom financial crimes and sanctions to export controls and threat identifications, our tools optimize protection against the types of risks that could otherwise be incredibly dangerous and excessively costly to any business. Serving many of today’s leading global financial and multinational institutions, Kharon products are the most powerful in the space with a precision and depth that is absolutely unparalleled.\n\nWhen you look at any major global crisis event, we’re providing intelligence that’s at the heart of those circumstances. We connect the dots in a way that’s meaningful. As the world continues to evolve in complexity, so too does the demand for our products. Given the significance of our work and the increasing global reliance on our insights, we are looking for a Sr. Data Scientist, Retrieval & Agentic Systems to join us as we work to shape the way businesses perceive and navigate global risks.\n\nCompany Benefits\nFully-sponsored private health insurance \nPension plan with 3% employer contribution\nAnnual leave plus bank holidays\nDISCLOSURES\nKharon is committed to cultivating and maintaining a workplace that is free from harassment and discrimination. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, ethnicity, gender, gender identity or expression, sexual orientation or identity, neurodiversity, appearances, age, protected veteran status, or status as a qualified individual with disability.\n\nWe are committed to making reasonable adjustments to support disabled applicants and employees. If you require any adjustment to participate in the recruitment process, please contact \n\nYou must have the right to work in the UK. Kharon is unable to offer visa sponsorship for this role.\n\nUNITED KINGDOM Candidate Privacy Notice\n\nKharon is committed to protecting your personal data in accordance with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018. We collect the personal data you submit as part of your application - including your name, contact details, employment history, and qualifications - to assess your suitability for the role. Our lawful basis for processing is legitimate interests (Article 6(1)(f) UK GDPR).\n\nIf your application is unsuccessful, your data will be retained for up to 12 months before being securely deleted. If you accept a role, your data will transfer to your employee record.\n\nYou have the right to access, correct, or request deletion of your data, to object to or restrict its processing, and to lodge a complaint with the UK data protection authority, the ICO, atwww.ico.org.uk. To exercise your rights, contact us at .","description_format":"text","description_chars":5758,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Annual leave","Health insurance"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["RegTech, AML & Compliance","Financial Data & Market Intelligence"],"lifecycle":[{"event":"open","at":"2026-10-28T17:12:37Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":13,"reasons":["conf:2","velocity","win:early"],"computed_at":"2026-10-30T05:48:23Z"},"pay":{"stated_usd_annual":159706,"is_top_pay":true},"html_url":"https://alion.io/job/kharon-sr-data-scientist-retrieval-agentic-systems-2","json_url":"https://alion.io/job/kharon-sr-data-scientist-retrieval-agentic-systems-2.json","meta":{"generated_at":"2026-10-30T05:57:27Z","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":8201,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"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":63402},"rest":"https://alion.io/mcp/rest/get_company?id=63402"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fkharon-sr-data-scientist-retrieval-agentic-systems-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%2Fkharon-sr-data-scientist-retrieval-agentic-systems-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%2Fkharon-sr-data-scientist-retrieval-agentic-systems-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/kharon-sr-data-scientist-retrieval-agentic-systems-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fkharon-sr-data-scientist-retrieval-agentic-systems-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3409289}},{"tool":"search_jobs","arguments":{"company":"kharon.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3409289},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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