Backend Software Engineer job opportunity at Quantexa.



Date2026-01-30T15:18:29.317Z bot
Quantexa Backend Software Engineer
Experience: General
Pattern: full-time
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loacation London, United Kingdom
loacation London....United Kingdom

What we’re all about. Do you ever have the urge to do things better than the last time? We do. And it’s this urge that drives us every day. Our environment of discovery and innovation means we’re able to create deep and valuable relationships with our clients to create real change for them and their industries. It’s what got us here – and it’s what will make our future. At Quantexa, you’ll experience autonomy and support in equal measures allowing you to form a career that matches your ambitions. 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. Opportunity As a Backend Software Engineer at Quantexa, you’ll play a key role in shaping one of the most critical components of our Decision Intelligence platform:  Decision Systems . The Decision Systems team is responsible for turning complex, interconnected data into meaningful insights — helping global organisations detect patterns, uncover risks, and make smarter decisions. You’ll work across the software stack, from improving our scoring capabilities that help uncover financial crime, to building tools that make detection logic faster, clearer, and more powerful for our users. The work you do will directly impact how clients identify suspicious activity and protect their businesses. This role isn’t just about writing code — stakeholder collaboration will become an increasingly important part of your remit. You’ll have the autonomy to take features from concept all the way through to release, working closely with product teams and delivery specialists to design solutions that have real-world impact. You’ll join a talented, supportive group that values innovation, knowledge sharing, and continuous improvement. The engineering work in the Decision Systems team centres around backend development using Scala and the latest agentic AI tooling. Typical tasks include: Building new tooling that allows users to configure detection logic more easily and effectively. Enhancing the platform so that existing Scores can be applied across an expanding range of scenarios. Improving system performance to ensure even the largest datasets can be analysed efficiently. We have a strong team culture supported by regular social events and a vibrant presence in Quantexa’s London office, alongside a flexible working policy that allows for regular home working. Join us for the next stage of our team’s growth — and Quantexa’s. What do I need to have? Strong commercial experience in  Java  or another JVM-based language. A willingness — and enthusiasm — to  learn Scala  and adopt functional programming practices. Pride in designing, building, and delivering well-engineered, high-quality solutions to complex problems. A big-picture approach to problem-solving, ensuring your solutions work effectively within the wider system. Experience across the full engineering lifecycle, from design and implementation through to testing and deployment. A passion for growth and learning as part of one of the UK’s fastest-growing scale-ups. Experience in the following would be beneficial but not essential:  Working with big data technology, ideally Spark but others will also be useful such as Hadoop or Elasticsearch  Experience with DevOps tooling and approaches (automation and tooling is something we are passionate about, we even have a dedicated Developer Tooling team)  Building data processing pipelines for use in production batch systems, including either traditional ETL pipelines and/or analytics pipelines  Manipulating data through cleansing, parsing, standardising etc, especially in relation to improving data quality/integrity  Usage of agentic AI tools and workflows

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