What it's all about -
The Payments Foundation Models team is a new, high-impact initiative within Visa’s Data Science organization. Based in Cambridge, UK, and working closely with global Visa engineering and product teams, the group’s mission is to build the next generation of payments-focused foundation AI models. These models will power a range of premium Risk and Identity Solutions (RaIS) products, such as fraud scores, with the goal of generating more than 100M dollars in new revenue by FY2030, and may be extended into other domains such as credit risk modelling or agentic commerce personalization.
As Senior Consultant Data Engineer you will design, build, optimize, and maintain data tooling and pipelines that power the development and deployment of Visa’s Large Transaction Models. You will:
Design and develop high-performance data pipelines and tooling to support Large Transaction Model training and analysis at global scale.
Provide technical leadership for your fellow engineers, data scientists and product managers within your Agile Team, and liaise with contributors from other technology and product teams across Visa.
This is a hands-on technical role in the Individual Contributor track at the Senior Consultant or Senior Manager level, with significant scope to influence engineering standards and practices while working on high-impact, Visa-scale systems.
Key Responsibilities:
- Design and develop high-performance data pipelines and tooling to support Large Transaction Model training and analysis at global scale.
- Optimize Spark pipelines and workflows for speed and efficiency across Visa’s evolving data warehousing and data analytics infrastructure.
- Provide technical leadership and guidance to other members of the agile team, working with cross-functional stakeholders to align technical solutions with product goals.
- Collaborate with data scientists to build production tooling and pipelines for training PyTorch-based machine learning models.
- Ensure data systems meet Visa’s standards for security, reliability, scalability, and compliance.
- Mentor junior engineers and contribute to Visa’s software engineering best practices.
- Liaise with global technology and product teams to share tools, patterns, and innovations.
- Drive continuous improvement of team processes and shared workflows.
This is a hybrid position. Expectation of days in the office will be confirmed by your Hiring Manager.

