Senior Software Engineer I (Fintech)

TL;DR

Senior Software Engineer I (Fintech): Designing and developing backend, service, and portal systems for a large-scale payments platform with an accent on Java, Spring, and asynchronous messaging. Focus on modernizing legacy codebases, implementing CI/CD practices, and leveraging AI-assisted coding tools to deliver high-quality merchant solutions.

Location: Must be based in the UK or Ireland

Salary: £60,000

Company

A high-growth, multi-national payments technology company building a merchant-first ecosystem.

What you will do

• Design and develop backend, service, and portal systems for the payment processing platform.
• Work across diverse languages and frameworks using modern techniques like BDD and CI/CD.
• Improve development processes and tools through automation and simplification.
• Collaborate with team members to ensure technical accuracy and timely delivery.
• Assist with software deployment activities from test environments through to production.
• Balance new feature development with ongoing platform modernization.

Requirements

• Must be based in the UK or Ireland.
• 5-7 years of professional software engineering experience.
• Strong proficiency in Java, Spring, REST APIs, and asynchronous messaging.
• Experience with relational database design, specifically Oracle and Hibernate.
• Familiarity with Linux or Windows development environments.
• Proficiency with AI-assisted coding tools and strong judgment in their application.

Culture & Benefits

• Work on a large-scale, long-lived payments platform under active modernization.
• Autonomous, low-bureaucracy working culture with a focus on small teams.
• Exposure to a wide variety of modern engineering practices and frameworks.
• Genuine career development and mentorship opportunities.
• Focus on quality, innovation, and end-user impact.