Senior Data Scientist (Machine Learning & NLP)

We are looking for an experienced Senior Data Scientist to design, build, and optimise intelligent recommendation and ranking solutions that drive better customer outcomes.

Working as part of a collaborative data and engineering team, you will develop production-ready machine learning models, leverage behavioural analytics, and apply modern NLP techniques to solve complex business challenges. You’ll work with large-scale datasets using Databricks and Spark, taking models from experimentation through to deployment while continuously improving live system performance.

This is an exciting opportunity for someone who enjoys solving real-world problems and building scalable machine learning solutions that deliver measurable business impact., * Design, build, and deploy machine learning models for recommendation and ranking systems.

• Analyse behavioural data to identify patterns and opportunities for optimisation.
• Develop NLP solutions to enhance intelligent matching and search capabilities.
• Build scalable machine learning pipelines using Databricks and Spark.
• Design, execute, and evaluate product experiments to improve model performance.
• Monitor, optimise, and continuously improve production machine learning models.
• Collaborate with Data Scientists, Data Engineers, Product Managers, and stakeholders to deliver high-impact solutions.
• Apply statistical techniques to evaluate model effectiveness and support data-driven decision making.

• Strong commercial experience in Machine Learning and predictive modelling.
• Experience with behavioural analytics and user behaviour modelling.
• Hands-on experience with Natural Language Processing (NLP).
• Strong experience using Databricks and Apache Spark.
• Experience building recommendation or ranking systems.
• Strong knowledge of statistical modelling and model evaluation techniques.
• Experience designing and analysing product experimentation (A/B testing and experimentation frameworks).
• Strong programming skills in Python and experience working with machine learning libraries.
• Experience working with large datasets and developing scalable ML solutions.

Soft skills

• Strong analytical and problem-solving skills.
• Ability to communicate technical concepts to both technical and non-technical stakeholders.
• Collaborative approach with experience working in cross-functional Agile teams.
• Passion for building production-quality machine learning solutions.
• Ability to balance experimentation with delivering measurable business value., * Experience building production-grade recommendation or matching systems within industries such as e-commerce, marketplaces, recruitment, property, or financial services.
• Experience improving live matching performance rather than developing research prototypes.
• Experience deploying and monitoring machine learning models in cloud environments.
• Familiarity with MLOps principles and model lifecycle management.

Ascent has recently been acquired by Acuity Analytics. This is both a significant milestone for us and a tremendous opportunity for you. Acuity Analytics is a business with a strong global reputation, an impressive client base and ambitious growth plans. We deliver deep insights and domain-led digital transformation to high-growth and heavily regulated organisations. To our customers, we bring a partnership that provides the talent, technology and capability to enhance performance and operational efficiency.