Overview
Software Engineer (Java-JEE) – Transaction Processing Systems
A high-growth global fintech, renowned for delivering world-class payments-related software and technology, is expanding its engineering team. We’re looking for a Software Engineer II to help build and evolve our highly available transaction processing systems that power real-time merchant interactions across the globe.
This is a unique opportunity to contribute to the foundation of an enterprise architecture team, with the autonomy to design, implement, and lead initiatives that support strategic growth and innovation.
What You’ll Work On
- Develop and maintain front-of-house systems — a suite of APIs, POS devices, and UIs that securely handle credit card data and interface with backend processing platforms.
- Build contemporary J2EE applications in a hybrid cloud/on-prem environment using GCP and private data centers for compliance and security.
- Deliver cloud-based reporting and analytics tools.
- Own tasks from initial concept through design to release, including post-deployment monitoring and verification.
- Apply BDD and TDD practices to ensure quality and reliability.
- Contribute to a collaborative, outcome-driven engineering culture focused on solving real-world problems.
- MySQL 8 with InnoDB, BigQuery
- REST APIs with JAX-RS, RESTEasy, OpenAPI, Swagger
- Multi-threaded concurrent programming, Pub/Sub, WebSockets (nice to have)
- Infinispan, JGroups, CDI
- 3–5 years of hands-on software engineering experience.
- Experience translating business requirements into technical solutions.
- Strong understanding of secure web applications, ideally in PCI-DSS environments.
- Familiarity with load balancing, fault tolerance, and high availability.
- Ability to grasp and improve existing codebases.
- Comfortable working independently or as part of a team.
- Strong communication and collaboration skills.
- Experience with BDD and TDD, and translating test cases into automated tests.
Why this role?
- Small teams, big impact – minimal bureaucracy, maximum autonomy.
- Growth mindset – an environment that will support your development and encourage innovation.
- Real people, real problems – build solutions that matter.
Ready to build the future of payments?
Seniority level
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This range is provided by Eden Scott. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
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Location: Glasgow, Scotland, United Kingdom
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