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The Role
At Zempler Bank, data plays a vital role in how we make better, fairer decisions for our customers and colleagues. As a Data Scientist, you’ll help shape how we use data to protect customers, widen access to credit and create thoughtful, seamless customer experiences all while supporting Zempler Bank’s ambition to grow responsibly and sustainably.
This is a role for someone who enjoys solving meaningful problems, working collaboratively across the business and seeing their ideas make a real‑world difference for both customers and communities.
Why join us?
You’ll work on problems that matter, helping protect customers and improve financial outcomes
Your work will be used, not shelved you’ll see your ideas make a difference
We value inclusive thinking, ethical data use and continuous learning
You’ll be supported to grow your skills, explore new techniques and shape your career path
We’re committed to creating a workplace where everyone feels welcome, respected and able to thrive
Hybrid Working
We are very proud to offer one of the most flexible hybrid working arrangements in the industry!
The expectation for this role, will involve a minimum of one day each week - working out of our London Bridge office
Key Responsibilities
Data Interpretations:
Developing algorithms in Python using both linear and non-linear techniques
Monitor ongoing performance of algorithms and retrain / redevelop where necessary
Exploration of new data sources to test whether they can be of value to Zempler Bank
Implement models into production using tools such as Airflow, PyFlink, BentoML, Git, Jenkins and Octopus
Model Development:
Participate in business projects
Manage the relationship with the model stakeholder
Assist in requirements gathering and project scope definition.
Develop models accordingly.
Coordination – checking in with stakeholders during the Model Development .
Communicate results of model developments effectively to non-technical audience
Qualification, Skills and Experience
Essential:
Strong Python skills for Data Science
Good understanding of SQL
Strong understanding of the mathematical and statistical concepts which underpin Data Science
Natural curiosity to develop new trains of thought and create new data signals. Driven to understand why things happen
Ability to work independently and as part of a team
Desirable:
Working knowledge of interpretability packages such as SHAP
Experience in developing and applying algorithms within a commercial environment
Prior experience working with highly imbalanced datasets for binary classification problems
Event streaming data engineering tools such as Flink or Spark
Experience with MLOps and tools such as Airflow, BentoML and MLFlow
Use of Docker
CI/CD and SDLC (e.g. JIRA, Git, Jenkins, Octopus)
Job type
Permanent
Industry
Engineering
Posted
2026-03-19T00:00:005 days ago
Skills
DataScientist
Why Zempler Bank
What makes us Zempler
We’re on a journey to make money simpler for the start-ups and small businesses that power the UK economy. We’re all about smart technology, customer service with a human touch, and bank accounts that meet real life needs.
That’s only possible thanks to an incredible team who are all in to make Zempler the best bank for Britain’s small but mighty businesses.
There are more than 300 of us, representing over 20 nationalities – a diverse mix of ideas and skills, collaborating to build great things. (And, of course, have some fun along the way.)
We’re committed to creating a culture where everyone feels valued for the work they’re doing. In 2023, we were inducted in the 'Best Companies' survey top 100 large businesses & Top 25 Financial Services businesses to work for in the UK.
Zempler are the only bank with a top five place in all three categories ranked in 2024 by CMA (Competition and Markets Authority) for business SME banking:
1) 5th in Overall service quality
2) 4th in Online and mobile banking services
3) 2nd in SME overdraft and loan services
Our values
We’re all in - For our customers, teams, and communities.
We’re up front - We tell it straight and make things simple.
We do it right - We own every decision and get stuff done.
We innovate with purpose - We think smart and act fast.
What we offer
Flexibility & choice
We offer 26 days (bank holidays on top) holiday per annum, rewarding long service with an additional day per year (up to 33). You can also buy and sell up to five days holiday a year, for times when you might need some extra cash or a longer break.
On top of your salary, we include an additional benefit allowance that you can use on whatever matters most to you – private medical, topping up your pension, or simply absorb this into your monthly income.
Support & inclusivity
We want to make sure we’ve got your back. Making sure you’ve got the right work-life balance is important to us.
This means flexible working opportunities for lots of different life stages and personal situations, including offering enhanced parental leave and flexibility for those in all types of caring roles.
We are a DWP recognised "Disability Confident" employer, committed to providing equal opportunities to all employees irrespective of their sex, age, sexual orientation, marital status, religion, race or disability.
It is our policy to give positive consideration to disabled persons with respect to applications for employment, training, career development and promotion, having regards to each individual's particular aptitudes and abilities.
Our incredible team that run our Equality, Diversity, and Inclusion Group hold events and initiatives that reflect our vibrant workplace. We also collaborate with social mobility programmes to offer internships for people from underrepresented backgrounds.
We all have good and bad days. Our 24/7 GP helpline gives access to support when you need it. We also throw in a cycle to work scheme and holistic wellbeing programme to keep you in tip top shape.
Learning & growth
We believe in lifelong learning. We also know that how and what you learn, is your choice.
We have a flexible programme which allows you to create your own development plan based on your interests, diary commitments, and goals.
From regular lunch and learns and our manager and leadership development programmes to mentoring scheme and LinkedIn Learning where you’ll have unlimited access to over 21,000 expert led courses at the click of a button.
Perks & benefits
• Hybrid working (where applicable in line with our internal "Hybrid Working" policy)
• Flexible working opportunities
• 26 days holiday (increasing up to 33)
• Work from abroad opportunities
• 7.5% cash benefit allowance
• Cycle to work scheme
• Wellbeing programme
• 24/7 GP helpline