{"id":197329,"date":"2026-03-06T16:47:31","date_gmt":"2026-03-06T16:47:31","guid":{"rendered":"https:\/\/www.harnham.com\/job\/e1aeb1da-8723-4ba1-d23d-08d5948a7341-senior-data-scientist-london-4\/"},"modified":"2026-03-09T21:27:57","modified_gmt":"2026-03-09T21:27:57","slug":"e1aeb1da-8723-4ba1-d23d-08d5948a7341-senior-data-scientist-london-4","status":"publish","type":"job_listing","link":"https:\/\/www.harnham.com\/job\/e1aeb1da-8723-4ba1-d23d-08d5948a7341-senior-data-scientist-london-4\/","title":{"rendered":"Senior Data Scientist"},"content":{"rendered":"<h4><strong><a id=\"myCustomID\" href=\"https:\/\/www.harnham.com\/job\/E1AEB1DA-8723-4BA1-D23D-08D5948A7341\">To Apply for this Job Click Here<\/a><\/strong><\/h4>\n<p><strong>SENIOR DATA SCIENTIST <\/strong><\/p>\n<p><strong>LONDON- HYBRID <\/strong><\/p>\n<p><strong>UP TO \u00a375,000 <\/strong><\/p>\n<\/p>\n<p>I&#8217;m currently working with a leading UK fintech that is looking to bring in a Senior Data Scientist to join their growing decision science team.<\/p>\n<p>You&#8217;ll be responsible for developing and deploying models that support underwriting decisions, pricing strategies, and fraud detection, working closely with product, engineering, and risk teams to ensure models are robust, scalable, and delivering commercial value.<\/p>\n<\/p>\n<p><strong>THE ROLE <\/strong><\/p>\n<\/p>\n<ul>\n<li>Develop and enhance credit risk models, including scorecards and machine learning models for underwriting and portfolio management<\/li>\n<li>Build pricing models and optimisation strategies to support customer acquisition and portfolio profitability<\/li>\n<li>Design and improve fraud detection models to identify suspicious activity and reduce financial losses<\/li>\n<li>Work closely with product, risk, and engineering teams to deploy models into production<\/li>\n<li>Analyse large datasets to uncover insights that inform decisioning strategies<\/li>\n<li>Monitor model performance and drive continuous model improvements<\/li>\n<\/ul>\n<p><strong>REQUIREMENTS <\/strong><\/p>\n<\/p>\n<ul>\n<li>Strong experience developing credit risk, fraud, or pricing models within financial services or fintech<\/li>\n<li>Strong programming experience in Python (pandas, scikit-learn, XGBoost etc.)<\/li>\n<li>Solid SQL skills and experience working with large datasets<\/li>\n<li>Good understanding of machine learning and statistical modelling techniques<\/li>\n<\/ul>\n<p><strong>HOW TO APPLY <\/strong><\/p>\n<p>Please send your application below or reach <\/p>\n<\/p>\n<p><img src=https:\/\/counter.adcourier.com\/RnJhbmNlc2NhSGFyZGNhc3RsZS4zMjk4MC4xMzE5N0BoYXJuaGFtc2VhcmNoLmFwbGl0cmFrLmNvbQ.gif><\/p>\n<h4><strong><a id=\"otherId\" href=\"https:\/\/www.harnham.com\/job\/E1AEB1DA-8723-4BA1-D23D-08D5948A7341\">To Apply for this Job Click Here<\/a><\/strong><\/h4>\n","protected":false},"author":0,"featured_media":0,"template":"","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","inline_featured_image":false,"_promoted":"","_job_location":"London","_application":"","_company_name":"Harnham","_company_website":"https:\/\/www.harnham.com\/","_company_tagline":"","_company_twitter":"","_company_video":"","_filled":0,"_featured":0,"_remote_position":0,"_job_salary":"","_job_salary_currency":"","_job_salary_unit":""},"job-categories":[61],"job-types":[60],"class_list":{"0":"post-197329","1":"job_listing","2":"type-job_listing","3":"status-publish","4":"hentry","6":"job-type-permanent"},"yoast_head":"<!-- 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