Senior Software Engineer – Payments Platform (Greenfield Project)

JR United Kingdom; Birmingham; On-site; GBP 50,000 - 80,000; Full time

Job summary

Join a major UK-based financial services group as a Senior Software Engineer to help build a new payments platform. This role offers the chance to influence architecture and tooling while guiding junior engineers and modernizing operational processes. Your expertise in full-stack development and payments systems will be crucial in shaping the future of liquidity and international payment solutions.

Qualifications

• Proven full-stack engineering experience, ideally with Java and React.
• Strong understanding of microservices architecture.
• Experience with cloud-native technologies and Kubernetes.

Responsibilities

• Join a feature team to build a new payments platform.
• Take ownership and guide junior engineers.
• Make architectural decisions and shape the project's direction.

Skills

Full-stack engineering experience

Java

React

Microservices architecture

Cloud-native technologies

Kubernetes

CI/CD pipelines

Payments systems exposure

Job description

Join a major UK-based financial services group at a pivotal moment as they build a brand-new payments platform from the ground up. This is a unique opportunity for a Senior Software Engineer to help shape the future of liquidity and international payment solutions, with real influence on architecture, tooling, and delivery approach.

About the Role

You’ll be joining a feature team within the Payments Platform area, working on a Greenfield application designed to automate and modernise currently manual operational processes. The solution plays a key role in modernising how the business handles international payments, CHAPS transactions, and liquidity management.

This is a chance to take ownership, guide junior engineers, and work closely with stakeholders from engineering, operations, and product. The project is in the early design phase, so decisions around architecture and cloud platforms are still to be made, making this a great opportunity to shape the direction of the build.

Skills required:

• Proven full-stack engineering experience, ideally with Java (Python a plus) and modern front-end development using React.
• Strong understanding of microservices architecture and modern design patterns.
• Experience with cloud-native technologies, Kubernetes, and CI/CD pipelines.
• Previous exposure to payments systems, SWIFT, or liquidity solutions is a strong advantage.
• Comfortable leading discussions, making architectural decisions, and supporting junior developers.