Software Engineer jobs in United Kingdom

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale — tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world. Join Visa and do work that matters — to you, to your community, and to the world.

Progress starts with you.

At Visa, we are passionate about making a difference. We lead the way in disrupting fraud from multiple vectors. In this role you will be joining an exciting, innovative business new to the Visa family.

At Featurespace, we are the world leader in Enterprise Financial Crime prevention, using cutting-edge machine learning technology to fight fraud and money laundering. As the inventors of Adaptive Behavioral Analytics and creators of the ARIC™ platform, we are trusted by customers across 180+ countries. As a Senior Software Engineer, you will help shape the future of our SaaS platform, playing a key role in delivering next-generation fraud prevention solutions at scale.

The Opportunity

As a Senior Software Engineer at Featurespace, you will play a pivotal role in designing, building, and scaling our global, multi-tenant SaaS platform. This hands-on role offers the chance to make a significant impact by leveraging cutting-edge technologies to combat financial crime and deliver innovative solutions to customers worldwide.

If you thrive in a collaborative, innovative, and fast-paced environment, this is your chance to lead, mentor, and shape the future of our platform while delivering high-impact solutions in a startup-style environment.

In this role, you will:

• Lead the design and development of services and infrastructure for our SaaS platform, utilizing technologies like Java, Python, Rust and AWS.
• Own and drive complex technical projects, guiding the team through architectural discussions and implementation to ensure scalability, maintainability, and performance.
• Collaborate across teams with engineers, product managers, designers, and data scientists to design and build end-to-end features that solve real customer problems.
• Partner with internal stakeholders to gather and refine product requirements, aligning them with technical strategies to enhance our platform’s capabilities.
• Optimize cloud infrastructure and managed services, ensuring our systems are secure, performant, and scalable as our customer base continues to grow globally.
• Mentor junior engineers, foster best practices in code quality, automated testing, and architecture decisions across the team.
• Troubleshoot and resolve performance bottlenecks in our multi-tenant architecture, ensuring uptime and reliability across the tech stack.
• Take operational responsibility for the services owned by your team, including participation in on-call rotations to ensure the health of production services.

Why Join Us?

• Be part of a growing, passionate team that’s leading the fight against financial crime with innovative technology.
• Work on impactful projects that shape the future of fraud prevention and AML solutions.
• Collaborate with a talented group of engineers in a fast-paced, learning-focused environment.

This is a hybrid position. There is an expectation of at least 3 days in the office per week.

Basic Qualifications

• Work experience with a Bachelor’s Degree or an Advanced Degree (e.g. Masters, MBA, JD, MD, or PhD)

Required experience:

• Proven experience as a Software Engineer or Senior Software Engineer, ideally within high-scale SaaS environment.
• Proficiency programming in Java or Python.
• Strong understanding of systems design, data structures, and algorithms for building distributed systems.
• Ability to lead technical projects, mentor team members, and influence architectural decisions.
• A commitment to automated testing practices and ensuring the reliability of systems.
• Strong skills in troubleshooting and optimizing performance in large, distributed systems.

Great to have:

• Experience working in fraud prevention or financial technology domains.
• Familiarity with relational and NoSQL databases in production environments (e.g., PostgreSQL, DynamoDB).
• Experience with large-scale data processing, storage technologies, and RESTful API design.
• Hands-on experience with AWS services such as Lambda, ECS, S3, RDS.
• Familiarity with Kubernetes
• Knowledge of message queueing systems and event-driven architectures.
• Experience with CI/CD pipelines, source control, and modern development environments.

Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.