Team Lead, Expert NBA (Next-Best-Action) Data Scientist

Nordea; Helsinki; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Hybrid working model

Job summary

Nordea is seeking a Team Lead, Expert NBA Data Scientist in Helsinki to shape how data science, ML and decisioning power next-best-action for customers in real time.

You will own analytics, learning and optimization for NBA, ensuring models and experiments drive measurable customer and business impact.

Qualifications

• Relevant quantitative degree or equivalent background.
• Strong Python and ML development skills.
• Experience with decisioning or personalization platforms.

Responsibilities

• Shape NBA modelling strategy and real-time decisioning.
• Build, deploy and optimize predictive models for engagement and value.
• Translate objectives into decision strategies using models and rules.
• Lead experimentation, A/B testing and uplift analysis.
• Drive data quality, governance and responsible AI practices.
• Collaborate across teams to operationalize models in production.

Skills

Python & ML development

Recommendation engines

Decisioning platforms

A/B testing

Data governance

Experimentation

Stakeholder collaboration

Responsible AI practices

Education

Quantitative degree or equivalent

Tools

Pega CDH

GitHub Copilot

Job description

Welcome to Group Technology, where we pride ourselves on engineering solutions and direct Nordea’s transformation by providing a holistic technological view and structured understanding of the bank, and its surrounding environment to enable the Customer Vision and the Business Strategy.

We are looking for a Team Lead, Expert NBA Data Scientist to join our MarTech & Sales Technology department in Helsinki. In this role, you will help shape how Nordea uses data science, machine learning and decisioning to identify the most relevant next best action for each customer in real time. You will own the analytics, learning and optimization approach for NBA, ensuring that models, data and experimentation improve decision performance and create measurable customer and business impact.

Nordea is a place where traditions meet tomorrow. We’re not just a bank; we’re a tech employer on a mission to evolve finance securely and responsibly. Together, we impact millions of people’s daily lives by ensuring they can access our solutions anytime, anywhere, while safeguarding their personal data and wealth. Join us in making an impact on the banking industry.

About Our Team

Meet the core Next Best Action (NBA) team. Our mission is to build, govern and scale Nordea’s NBA capability as a Nordic-wide decisioning foundation, enabling relevant, data-driven and personalized customer interactions across markets, business areas and channels. We own the common decisioning frameworks, data and intelligence foundations, governance and platform enablement.

What you’ll be doing

• Shape and evolve the NBA modelling strategy to enable Nordea’s segment-of-one vision, leveraging Pega CDH adaptive models, custom ML models and external analytical signals
• Build, deploy and continuously optimize predictive models for customer engagement, conversion, retention, customer value and recommendations
• Translate business objectives into decision strategies by combining predictive models, business rules, customer context and value signals
• Lead experimentation and measurement through A/B testing, champion/challenger approaches, control groups and uplift analysis, linking outcomes to business and customer KPIs
• Drive the use of customer, behavioural, transactional and digital data for predictive modelling, ensuring data quality, governance and responsible AI practices
• Monitor and improve model performance driving continuous improvement and optimization.
• Collaborate across decisioning, data, engineering, product and business teams to operationalize models using modern development practices and AI-assisted tooling

In short, leverage AI-assisted development tools to improve productivity and quality, while translating business objectives into decisioning models and collaborating with Lead Decisioning Experts to embed them into NBA strategies and arbitration logic.

Who You Are

This is the right role for you if you have:

• Engineering Mindset
• CuriosityandContinuous Learning
• PragmatismandProblem-Solving
• Experience in stakeholder collaboration: Experience working across business, decisioning, and technical teams

Ideally, your background and skills include:

• A relevant academic background in a quantitative field such as data analytics, business analytics, economics, finance, engineering or computer science.
• Python & ML development: Advanced programming skills and experience building custom ML models
• Recommendation engines, personalization platforms or customer decisioning platforms.
• Combining multiple models, signals and rules to support customer-level decisions.
• Customer Lifetime Value (CLV), churn prediction, retention optimization or product adoption modelling.
• Pega Customer Decision Hub (CDH), adaptive decisioning or similar enterprise decisioning technologies.
• Real-time and batch decisioning concepts, including latency, data availability and performance trade-offs.
• Model governance, explainability, monitoring and responsible AI practices.
• Agile ways of working and modern development practices such as version control, testing, reproducibility and experimentation tracking.
• AI-assisted development tools such as GitHub Copilot, Claude or similar.

What We Offer

• Collaboration
• Ownership
• Passion
• Courage
• Hybrid working model– we believe in the value of bringing people together and at the same time we embrace the freedom of flexibility.
• Diversity and inclusionare a natural part of our daily work. We know that an inclusive workplace is a sustainable one. We genuinely believe that our diverse backgrounds, experiences,characteristicsand traits make us stronger together. Every day we strive to find new ways to improve diversity and inclusion within our community e.g. we have signed theEuropean Diversity Chartersin the countries where weoperateto show our commitment and engage with others to continue learning and improving.

People are driven by manydifferent factors. For some,it’sto take their career to the next level. For others,it’sto break new ground within their area of expertise – in other words, with us, you will always move forward.

A culturethat fosters performance and growthin one of the largest Nordic banks, offeringvarious opportunitiesto evolve, develop and learn frombrilliant colleagues with diverse backgrounds in a vibrant working environment.

We enable dreams and aspirations for a greater good.

We build relationships. We add a personal touch to everything we do – when advising our customers, collaborating with colleagues, and meeting our potential candidates.

We learn and develop. We take pride in being experts and thinking ahead. We use our expertise to meet our customers’ needs, from the simplest to the most complex. We bring a growth mindset to our work that enables us to focus on a broader perspective in our daily challenges.

We lead change. We are responsible and aware of the impact of our decisions, both for our customers and for our local and global communities. Mindful of our responsibility towards current and future generations, we have made sustainability an integrated part of our business strategy.

We are Nordea. We have a 200-year history of supporting and growing the Nordic economies and our values are deeply rooted in these open, progressive and collaborative societies. As one of the biggest employers in the Nordics, Poland and Estonia, you have excellent opportunities to evolve, develop and move forward with us.

Studies show that members of underrepresented communities don’t apply for jobs unless they tick all the qualification boxes. If this is part of why you hesitate to apply, we would like you to reconsider and give it a chance. Maybe your profile fits our needs much better than you think.

A security clearance will be performed for the person selected for this position.