Lead Data Engineer
Quantexa
Software Engineering, Data Science
London, UK
Posted on Jun 4, 2026
What We’re All About.
It isn’t often you get to be part of a tech company that, since 2016, has been innovating the data analytics market in ways no-one else can. Our technology started out in FinTech, helping tackle serious criminal activity. Now, its potential is virtually limitless. Working at Quantexa isn't just intellectually stimulating. We’re a real team. Collaborating and constantly engineering better and better solutions. We’re ambitious, we think things through and we’re on a mission to discover just how far we go. 41% of our colleagues come from an ethnic or religious minority background. We speak over 20 languages across our 47 nationalities, creating a sense of belonging for all.
If our incredible culture sounds like you, we’d love you to join us.
Opportunity
Role
Applications is an Engineering function within Quantexa’s R&D department that is focused on internally building real-world applications of the Quantexa Platform. Data Engineers are focused on building the data infrastructure and processing capabilities that power Quantexa's platform and applications. This role focused on one of our Applications Teams:
Data Feeds
What makes you Q will help you to realize your full potential, flourish and enjoy what you do, while being recognized and rewarded with our broad range of benefits.
We Offer
We have one mission. To help businesses grow. To make data easier. And to make the world a better place. We’re not a start-up. Not anymore. But we’ve not been around that long either. What we are is a collection of bright, passionate minds harnessing complexities and helping our clients and their communities. One culture, made of many. Heading in one direction – the future.
It’s All About You.
We want you to feel welcome, valued, and respected - because it’s your individuality and passion that make you Q. We see that, and we celebrate it. That’s why we’re proud to be an Equal Opportunity Employer.
We are committed to fostering an inclusive and diverse work environment, continuously improving to ensure everyone belongs. Our recruitment process is designed to be inclusive and accessible. If you need any reasonable adjustments or accommodations, please let our Talent Acquisition Team know - we’re happy to assist.
No matter your race, beliefs, color, national origin, gender, sexual orientation, age, marital status, neurodiversity, or abilities—whoever you are—if you're a passionate, curious, and caring human eager to push the boundaries of what’s possible, we want to hear from you.
It isn’t often you get to be part of a tech company that, since 2016, has been innovating the data analytics market in ways no-one else can. Our technology started out in FinTech, helping tackle serious criminal activity. Now, its potential is virtually limitless. Working at Quantexa isn't just intellectually stimulating. We’re a real team. Collaborating and constantly engineering better and better solutions. We’re ambitious, we think things through and we’re on a mission to discover just how far we go. 41% of our colleagues come from an ethnic or religious minority background. We speak over 20 languages across our 47 nationalities, creating a sense of belonging for all.
If our incredible culture sounds like you, we’d love you to join us.
Opportunity
Role
Applications is an Engineering function within Quantexa’s R&D department that is focused on internally building real-world applications of the Quantexa Platform. Data Engineers are focused on building the data infrastructure and processing capabilities that power Quantexa's platform and applications. This role focused on one of our Applications Teams:
Data Feeds
- Building standardised and reusable code for processing various third party/open source data sets
- Managing an internal data lake for the provision of this data by other teams for testing and analytics
- Owning general best practices for ingesting and processing data to get it ready for use in the Quantexa Platform, including pipelines and scheduling
- Developing Quantexa's core risk detection and scoring capabilities, expanding it to new industries and scenarios
- Improving risk detection coverage by adding new Scores to detect additional types of Financial Crime
- Building new tooling to allow users to configure detection logic more easily and effectively
- The teams work together closely and team members are able to rotate between them to enable knowledge sharing and personal development.
- Experience designing and building robust, scalable data infrastructure to support high-volume, high-velocity data flows
- Experience in developing and maintaining production-grade ETL and data processing pipelines, with a focus on performance, reliability, and maintainability
- Strong analytical skills, with experience working on real-world, varied datasets to extract insights and improve data quality
- Hands-on experience working with data in cloud-based environments, ideally with distributed systems and modern data platforms
- Familiarity with performance tuning and optimisation techniques for data processing workflows
- A collaborative mindset, with a track record of defining and sharing best practices across teams
- Comfortable working in a fast-paced Agile environment, with a focus on iterative delivery and continuous improvement
- A growth mindset and the drive to thrive within one of the UK’s fastest-growing scale-ups
- A strong coding background, ideally in Scala, or in a language such as Java or Python that supports a quick transition to Scala
- Working with big data technologies, ideally Spark, but experience with tools like Airflow or Elasticsearch is also valuable
- Manipulating and transforming data — cleansing, parsing, standardising — to improve data quality and integrity
What makes you Q will help you to realize your full potential, flourish and enjoy what you do, while being recognized and rewarded with our broad range of benefits.
We Offer
- Competitive salary & Company bonus
- 25 days annual leave (with the option of buying up to 5 days, and rolling over up to 10), plus national holidays + your birthday off!
- Pension scheme with a company contribution of 6% (when you contribute 3%)
- Private Healthcare, including dental & optic cover
- Life Insurance and Income Protection
- Regularly bench-marked salary rates
- Enhanced Maternity, Paternity, Adoption, or Shared Parental Leave
- Well-being days
- Volunteer Day off
- Work from Home Equipment
- Commuter, Tech and cycle to work schemes
- Free Subscription to a meditation, relaxation and sleep app
- Continuous Training and Development
- Spend up to 2 months working outside of your country of employment over a rolling 12-month period with our ‘Work from Anywhere’ policy
- Team Social Budget & Company-wide Socials
We have one mission. To help businesses grow. To make data easier. And to make the world a better place. We’re not a start-up. Not anymore. But we’ve not been around that long either. What we are is a collection of bright, passionate minds harnessing complexities and helping our clients and their communities. One culture, made of many. Heading in one direction – the future.
It’s All About You.
We want you to feel welcome, valued, and respected - because it’s your individuality and passion that make you Q. We see that, and we celebrate it. That’s why we’re proud to be an Equal Opportunity Employer.
We are committed to fostering an inclusive and diverse work environment, continuously improving to ensure everyone belongs. Our recruitment process is designed to be inclusive and accessible. If you need any reasonable adjustments or accommodations, please let our Talent Acquisition Team know - we’re happy to assist.
No matter your race, beliefs, color, national origin, gender, sexual orientation, age, marital status, neurodiversity, or abilities—whoever you are—if you're a passionate, curious, and caring human eager to push the boundaries of what’s possible, we want to hear from you.