Senior Java/Kotlin Backend Engineer for Fintech Platforms

Employment International; England; On-site; GBP 90,000 - 130,000; Full time

Job summary

Employment International is seeking a Senior Software Engineer to design, build, and support scalable banking and financial services systems. The role combines technical leadership with hands-on engineering across the full software development lifecycle.

Ideal candidates will have deep Java/Kotlin expertise, cloud-native microservices experience, and a track record delivering resilient production systems in fintech environments.

Qualifications

• Banking/fintech domain experience preferred.
• Experience with mission-critical, high-scale production systems.
• Experience building customer-facing platforms and payment processing.
• Understanding of security, compliance, resiliency, and operational risk.],
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Responsibilities

• Design, develop, and support scalable backend services, APIs, and cloud-native microservices.
• Build distributed and event-driven systems using messaging and asynchronous processing patterns.
• Drive engineering excellence through architecture, coding standards, testing, and automation.
• Support production systems, incident management, troubleshooting, and operational resilience.
• Balance long-term architecture goals with short-term delivery priorities.
• Collaborate across engineering teams, product owners, architects, and business stakeholders.
• Mentor engineers, foster knowledge sharing, and shape technical direction.
• Promote responsible adoption of AI-assisted software development practices.
• Ensure engineering output meets stakeholder expectations, security, resiliency and compliance standards.

Skills

Java

Kotlin

Cloud-native

Distributed systems

Technical leadership

Tools

AWS

REST APIs

Microservices

CI/CD

DevOps tooling

Job description

Employment International is seeking a Senior Software Engineer to design, build, and support scalable banking and financial services systems. The role combines technical leadership with hands-on engineering across the full software development lifecycle.

Ideal candidates will have deep Java/Kotlin expertise, cloud-native microservices experience, and a track record delivering resilient production systems in fintech environments.