Java Engineer - Outside IR35 - 9/12 months

Modern Stack: Cloud-native architecture using AWS and containers Impactful Domain: Build and evolve payment-centric systems Hybrid Flexibility: Minimal on-site requirement About the Role

We are recruiting on behalf of a technology-driven organisation delivering high-scale, mission-critical platforms within the payments and data space.

This role suits an experienced Java Engineer who is comfortable working in distributed systems, cloud environments, and data-heavy architectures. You'll be joining a team solving real scalability and reliability challenges, with autonomy and ownership from day one., * Design, build, and maintain backend services using Java

• Work within cloud-native AWS environments
• Contribute to containerised workloads (Docker / Kubernetes)
• Build and support data-intensive systems (including Spark where applicable)
• Collaborate with architects and engineers on system design and delivery
• Participate in agile delivery, code reviews, and technical discussions

Essential

• 5-10 years commercial experience with Java
• Strong backend engineering background
• Experience working in distributed systems

Conditional (must meet at least 2 of the below)

• AWS - 3+ years hands-on experience
• Big Data / Spark - 3+ years
• Containerisation - Docker and/or Kubernetes, 3+ years
• Payments domain - 2-3 years experience

Nice to Have

• Infrastructure as Code (Terraform)
• Event-driven architectures
• Experience in high-throughput or regulated environments