Principal Data Scientist at Eonnext

We’re looking for three talented Principal Data Scientists to join our supportive and forward-thinking Commercial Data team. Each role offers a unique opportunity to make a real impact and shape how we use data to create meaningful change across the business. You’ll join a team that values openness, curiosity, and innovation, where your voice is heard and your contributions make a difference. Here, you can grow, mentor others, explore new ideas and help us deliver smarter, more impactful solutions across the business.

Principal Data Scientist Pricing - We’re looking for someone who’s eager to make a genuine difference, helping shape how we approach pricing in a rapidly evolving energy industry. You’ll work closely with our Pricing team, combining your technical strengths with a collaborative, people-first mindset to deliver insights that drive smarter, fairer and more sustainable decisions.

Principal Data Scientist AI & Flex - This role will focus on supporting AI and Data Science within our Flex space one of the most exciting and strategically important areas of the business. You’ll help us explore new ways to use intelligent data solutions, working alongside innovative thinkers and technical specialists to unlock the full potential of advanced analytics and automation.

Principal Data Scientist Credit Risk and Customer Insights - We’re also seeking a Principal Data Scientist with strong experience in debt and credit risk, ideally with a background in customer segmentation. In this role, you’ll help us better understand our customers, building models and insights that support fair, informed decisions and stronger customer relationships.

Here’s a taste of what you’ll be doing:

As a Principal Data Scientist, you’ll combine deep technical expertise with a consultative, collaborative approach. Across these roles, you will:

• Lead data science projects from initial ideas through to delivery, ensuring work is both rigorous and impactful

• Partner with colleagues across functions, listening carefully and helping them see what’s possible through data

• Translate complex business needs into thoughtful, practical data products that support better decision-making

• Apply a wide toolkit of methods from classical statistics and regression models to neural networks, ensemble methods, and AI techniques, to answer important business questions

• Share insights through clear, compelling storytelling, dashboards, and visualisations that empower senior stakeholders to act with confidence

• Coach and mentor junior data scientists, fostering a culture of growth, curiosity and innovation

• Champion collaboration, knowledge-sharing and experimentation across the data science and wider business community

Where you could make an impact:

Pricing Focus

• Shape how we approach pricing in a rapidly evolving energy market

• Build fairer, more innovative pricing solutions through advanced analytics and data-driven insights

• Translate complex business requirements into practical models that directly influence commercial decisions

Questions about this role? Reach out to [email protected]

Credit risk and Customer Insights Focus

• Support strategic decision-making around debt, credit risk and customer segmentation

• Build robust predictive models and propensity models to better understand our customers

• Partner with business stakeholders to uncover opportunities for data science applications, including NLP and Gen AI

Questions about this role? Reach out to [email protected]

AI & Flex Focus

• Drive innovation in AI and advanced analytics in our Flex space, a strategically important area

• Design, build, and deploy models and solutions that deliver measurable business impact

• Explore new ways to leverage data for predictive modelling, automation, and intelligent insights

Questions about this role? Reach out to [email protected]

Are we the perfect match?

• 5–7+ years of hands-on experience as a Data Scientist, with exposure to productionised models

• Degree (BSc or MSc) in a quantitative or technical field (Statistics, Mathematics, Physics, Computer Science, Machine Learning)

• Strong programming skills in Python (production-level) and SQL; confident with modern ML/AI libraries such as scikit-learn, TensorFlow, or PyTorch

• Familiarity with MLOps frameworks, model deployment, and cloud-based platforms (Databricks, AWS, Azure)

• Strong experience with data visualisation tools and techniques; able to turn complex results into accessible insights

• Excellent communicator; able to explain technical concepts to non-technical audiences with clarity and empathy

• Passionate about collaboration, curiosity, and mentoring others; motivated to create positive change through data

It would be great if you had:

• Experience in the energy or retail sector

• Background in pricing, commercial modelling, credit risk, or debt

• Exposure to PySpark or other big data tools

• Experience with NLP, Generative AI, or advanced predictive modelling

Here’s what else you need to know:

• Role may close earlier due to high applications.

• Location – London E.ON Next, 47-53 Charterhouse Street, Farringdon, London, EC1M 6P or Nottingham - E.ON Next office, Trinity House, 2 Burton St, Nottingham NG1 4BX - with travel to our other sites when required.

• Excellent parental leave allowance.

• Award-Winning Workplace - We’re proud to be named a Sunday Times Best Place to Work 2025 and the Best Place to Work for 16–34-year-olds

• Outstanding Benefits - Enjoy 26 days of annual leave plus bank holidays, a generous pension, life cover, bonus opportunities and access to 20 flexible benefits with tax/NI savings

• Flexible & Family-Friendly - Our industry-leading hybrid and family-friendly policies earned us double recognition at the Personnel Today Awards 2024. We’re open to discussing how flexibility can work for you

• Inclusive & Diverse - We’re the only energy company in the Inclusive Top 50 UK Employers. We’re also proud winners of Best Employer for Women and Human Company of the Year—recognising our inclusive, people-first culture

• Support at Every Stage of Life - We’re Fertility Friendly and Menopause Friendly accredited, with inclusive support for everyone

• Accessible & Supportive - Do you consider yourself as having a disability? As a Disability Confident Employer, we guarantee interviews for disabled applicants who meet the minimum criteria for the role and will make any adjustments needed during the process

• Invested in Your Growth - From inclusive talent networks to top-tier development programmes, we’ll support your growth every step of the way

• For all successful candidates.  Due to the nature of this role your employment will be subject to a basic DBS (Disclosure Barring Service) check being carried out by ourselves via a 3rd party service provider