Data Scientist

Company: Zempler Bank
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Job Description:

Hello, we’re Zempler Bank, formerly Cashplus Bank. We’re here to make money simpler. We know that banking isn’t at the top of most people’s to do lists, that’s why making it less of a chore is at the top of ours. We don’t do banking the traditional way the wrong way. We do banking that works for the people that need it, when they need it. We’re for the crafters, the grafters, and the self startersWe are a “Top 100 Best Companies” employer & Top 25 Financial Services businesses to work for in the UK. Our mission statement, which underpins everything we do, is to provide the UK’s underserved businesses with easy to access and simple to use banking services that helps them succeedThe 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.You’ll work on problems that matter, helping protect customers and improve financial outcomesYour work will be used, not shelved you’ll see your ideas make a differenceWe value inclusive thinking, ethical data use and continuous learningYou’ll be supported to grow your skills, explore new techniques and shape your career pathWe’re committed to creating a workplace where everyone feels welcome, respected and able to thriveHybrid 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 officeKey Responsibilities

Data Interpretations

Developing algorithms in Python using both linear and non-linear techniquesMonitor ongoing performance of algorithms and retrain / redevelop where necessaryExploration of new data sources to test whether they can be of value to Zempler BankImplement models into production using tools such as Airflow, PyFlink, BentoML, Git, Jenkins and OctopusParticipate in business projectsManage the relationship with the model stakeholderAssist in requirements gathering and project scope definition.Coordination – checking in with stakeholders during the Model Development.Communicate results of model developments effectively to non-technical audienceQualification, Skills and Experience

Good understanding of SQLStrong understanding of the mathematical and statistical concepts which underpin Data ScienceNatural curiosity to develop new trains of thought and create new data signals. Driven to understand why things happenAbility to work independently and as part of a teamWorking knowledge of interpretability packages such as SHAPExperience in developing and applying algorithms within a commercial environmentPrior experience working with highly imbalanced datasets for binary classification problemsEvent streaming data engineering tools such as Flink or SparkExperience with MLOps and tools such as Airflow, BentoML and MLFlowUse of DockerCI/CD and SDLC (e.g. JIRA, Git, Jenkins, Octopus)Competitive basic salaryAdditional benefit allowance representing 7.5% of your annual salary allowing you the flexibility to decide your own benefits (or simply absorb this into your monthly income).26 days’ holiday increasing each year of service to 33 daysAbility to buy and sell a further 5 days holiday each year4 x Life AssurancePension salary sacrificeOption for LinkedIn Learning licenseFamily friendly policiesRegular social activities and team eventsCharity Volunteering DayRight to work in the UK

At this time,

Zempler Bank is unable to offer visa sponsorship

for this role, so applicants will need to have the right to live and work in the UK already. We understand this may not suit everyone, and we really appreciate the interest from individuals around the world who are considering Zempler Bank as part of their career journer.Zempler Bank is an equal opportunity employer. Individuals seeking employment are considered without regard to race, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, physical or mental disability, military or veteran status, or any other characteristic protected by applicable law

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Posted: July 14th, 2026