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Quantexa

Data Engineer - Applications

Hybrid

London, United kingdom

Full Time

07-12-2025

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Skills

Python Java Go Scala Big Data Analytical Skills Agile Analytics Spark

Job Specifications

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

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

Decision Systems

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.

Requirements

What do I need to have?

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

Experience in the following would be beneficial:

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

Benefits

Why join Quantexa?

Our perks and quirks.

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 and Company Bonus
Flexible working hours in a hybrid workplace & free access to global WeWork locations & events
Pension Scheme with a company contribution of 6% (if you contribute 3%)
25 days annual leave (with the option to buy up to 5 days) + birthday off!
Work from Anywhere Scheme: Spend up to 2 months working outside of your country of employment over a rolling 12-month period
Family: Enhanced Maternity, Paternity, Adoption, or Shared Parental Leave
Private Healthcare with AXA
EAP, Well-being Days, Gym Discounts
Free Calm App Subscription #1 app for meditation, relaxation and sleep
Workplace Nursery Scheme
Team's Social Budget & Company-wide Summer & Winter Parties
Tech & Cycle-to-Work Schemes
Volunteer Day off
Dog-friendly Offices

Our mission.

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.

It's important to us that you feel welcome, valued and respected. After all, it's your individuality and passion for what you do that will make you Q. We see that - which is why we're proud to be an Equal Opportunity Employer. We've created a

About the Company

When it comes to making the right decisions for your organization, more is possible with the right data, in the right context. Quantexa’s Decision Intelligence Platform gives customers the ability to understand their data by connecting siloed systems and visualizing complex relationships. The result is a single view of data that becomes their most trusted and reusable resource across the organization. Quantexa helps customers establish a culture of confident decision making at strategic, operational, and tactical levels t... Know more