Adzact is a rapidly growing scale-up, headquartered in Central London, backed by the best AdTech Entrepreneurs in the country including the founders of AdMob and LoopMe and Venture Capital, with the world's best B2B Marketers as clients including Just Eat, Darktrace, Vitality, Trustpilot, Paddle.com, Ecologi etc.
At Adzact, we are on a mission to revolutionise B2B advertising by building the most advanced AI-powered ad platform the world has ever seen—without exploiting personal data. As a Senior Data Scientist, you’ll be at the forefront of this transformation. You'll help expand our pioneering platform into the USA and beyond, using cutting-edge technologies like LLMs, large-scale web crawling, and advanced AI methods to train state-of-the-art models. This is your chance to shape the future of advertising with a company leading the way in ethical, innovative AI.
We’re at an inflection point in our growth: profitable, scaling fast, and backed by visionary investors. Joining now means having an outsized impact on how we create the richest dataset on businesses ever assembled, redefining how B2B marketing works globally.
We’re open to full-time or part-time roles, offering flexibility for exceptional candidates who share our ambition.
What you’ll do
* Use our proprietary web-scale data-gathering, processing and modelling platform to design and deliver advanced ML ad-targeting solutions for our clients and build re-training tech to manage performance in real-time.
* Explore and create features from diverse datasets, including video, image, text, geospatial, financial, and conceptual data, to drive innovation in our products.
* Deploy groundbreaking methods, such as LLMs and deep neural networks, to push the boundaries of B2B ad targeting.
* Lead high-impact projects that expand our reach into global markets and uncover creative ways to use data at scale.
* Contribute to strategic planning within the Data Science team, driving the development roadmap.
* Mentor and coach junior team members, helping to build a culture of excellence and collaboration.
Minimum Requirements
* An advanced degree in a quantitative discipline (e.g., Data Science, Computer Science, Statistics, Mathematics, Economics, or similar).
* 5+ years of hands-on experience delivering Data Science solutions in a commercial setting.
* Expertise in Python's Data Science toolkit (e.g., pandas, scikit-learn, Jupyter) and familiarity with best practices in software development.
* Experience with cloud platforms (e.g., AWS) and managing end-to-end technical projects, ideally with small teams (2–3 members).
* Strong mentoring skills and the ability to guide junior colleagues.
* Excellent communicator, able to explain complex ideas to technical and non-technical audiences.
* Bonus skills: Proficiency in LLM, geospatial data science, data matching, or deep learning methods.
What We Offer
* Cutting-Edge Work: You’ll play a leading role in using the latest AI methods to solve real-world challenges and redefine an industry.
* Flexibility: We offer part-time or full-time opportunities, flexible working hours, and hybrid working options.
* Growth: A £1,000 annual professional development budget and 12 days of dedicated training time per year.
* Support: Enhanced parental leave, private health and dental coverage, and a 6% company pension contribution.
* Holidays: 28 days (plus bank holidays), increasing with tenure, and the ability to roll over unused days.
* Culture: Be part of a friendly, open team where your voice is heard, and we support each other to thrive.
We are committed to creating an inclusive workplace and welcome applicants from diverse backgrounds, ensuring everyone is treated with fairness and respect.
Join us and be part of a team that’s changing the future of advertising!
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