{"id":196720,"date":"2026-02-02T16:39:32","date_gmt":"2026-02-02T16:39:32","guid":{"rendered":"https:\/\/www.harnham.com\/job\/e1aeb1da-8723-4ba1-d23d-08d5948a7341-lead-data-scientist-london\/"},"modified":"2026-03-09T23:53:46","modified_gmt":"2026-03-09T23:53:46","slug":"e1aeb1da-8723-4ba1-d23d-08d5948a7341-lead-data-scientist-london","status":"publish","type":"job_listing","link":"https:\/\/www.harnham.com\/job\/e1aeb1da-8723-4ba1-d23d-08d5948a7341-lead-data-scientist-london\/","title":{"rendered":"Lead 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>Lead Data Scientist<\/strong><\/p>\n<p><em>London<\/em><\/p>\n<p><em>85-120k<\/em><\/p>\n<p>If you&#8217;re a hands-on Data Science \/ AI specialist who loves solving real operational problems, this role puts you right at the heart of client delivery. You&#8217;ll shape the problems, design and build the solutions, and see your models deployed into live environments &#8211; not parked as endless POCs.<\/p>\n<p><strong>THE COMPANY<\/strong><\/p>\n<p>This fast-growing consulting firm helps organisations across the public sector, defence and commercial markets deliver measurable improvements in performance through data, AI and digital solutions. They are building a modern AI &amp; Digital capability that sits at the front of transformation programmes, working shoulder-to-shoulder with clients on their toughest operational challenges.<\/p>\n<p><strong>THE ROLE<\/strong><\/p>\n<p>As a Lead Data Scientist, you will blend hands-on technical work with consulting, stakeholder management and practice-building.<\/p>\n<ul>\n<li>Identifying high-impact Data Science, Machine Learning, AI and simulation opportunities on client engagements<\/li>\n<li>Scoping and shaping problems, designing experiments and roadmaps, and then building and deploying models end-to-end<\/li>\n<li>Leading technical workstreams, managing small teams and ensuring projects are delivered on time and to a high standard<\/li>\n<li>Translating complex technical concepts into clear, compelling narratives for non-technical senior stakeholders<\/li>\n<li>Coaching and mentoring consultants to build their capabilities in DS\/ML\/AI and modern analytics<\/li>\n<\/ul>\n<p><strong>YOUR SKILLS &amp; EXPERIENCE<\/strong><\/p>\n<ul>\n<li>Strong background in Data Science, Machine Learning, AI, simulation or advanced analytics, with clear examples of end-to-end delivery<\/li>\n<li>Proven ability to shape, not just execute: from defining the problem and designing the solution, through to delivery and measurement of impact<\/li>\n<li>Consulting capability &#8211; comfortable running client workshops, identifying opportunities, influencing senior stakeholders and supporting pitches<\/li>\n<li>Evidence of measurable commercial or operational impact (e.g. revenue growth, cost reduction, efficiency gains, service improvement)<\/li>\n<li>Hands-on experience building models and turning prototypes into robust, production-ready solutions<\/li>\n<li>Experience leading teams or technical workstreams in a project environment<\/li>\n<li>UK citizenship (for security clearance purposes) and willingness to travel across the UK 2-3 days per week, depending on client needs<\/li>\n<\/ul>\n<p>Nice-to-have experience:<\/p>\n<ul>\n<li>Background in a consulting environment or a high-performing in-house DS\/AI team<\/li>\n<li>Exposure to sectors such as defence, public sector and consumer\/retail<\/li>\n<li>Familiarity with modern data and AI tooling such as Python, Spark, Databricks, Azure cloud, and Generative AI platforms (experience with specific tools is helpful but not essential)<\/li>\n<li>A mix of technical, product and operational experience &#8211; comfortable talking both code and business outcome <\/li>\n<\/ul>\n<\/p>\n<p><img src=https:\/\/counter.adcourier.com\/R2l1bGlhRnJvbnRlZGR1LjY0MjUzLjEzMTk3QGhhcm5oYW1zZWFyY2guYXBsaXRyYWsuY29t.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":[921],"job-types":[60],"class_list":{"0":"post-196720","1":"job_listing","2":"type-job_listing","3":"status-publish","4":"hentry","6":"job-type-permanent"},"yoast_head":"<!-- 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