Senior Java Engineer

Cloud services are the backbone of modern IT infrastructure, and our client is leading the way in migrating traditional applications to a custom-built container hosting platform while accelerating the journey toward public cloud and cloud-native solutions.

We are seeking a Senior Java Expert Engineer to join the team. This team is at the heart of building a high-performance, scalable platform that processes Instant Payments and SEPA Credit Transfer payments across multiple European entities.

Why You Should Join

• Work with modern, market-standard technologies

• Collaborate with experienced engineers who are passionate about continuous improvement

• Tackle complex engineering challenges involving real-time processing, resilience patterns, and high-volume stateless systems

Your Role

As a senior engineer, you'll be part of a DevOps team responsible for designing, developing, testing, and supporting high-quality software solutions. You'll take a lead role in creating scalable services that process millions of financial transactions daily.

You will:

• Develop and implement complex functionality in a distributed system

• Automate everything possible — from deployments to testing

• Maintain technical and functional ownership of your applications

• Collaborate in a Scrum team and deliver iterative improvements with biweekly sprints

Platform Capabilities

The team is an internal platform designed for managing payment orders and includes:

• Building internal and external APIs

• Creating, warehousing, and routing payment orders

• Tracking and reporting order lifecycle and statuses

• Enabling real-time and batch payment execution through multiple channels

Tech Stack

• Languages & Frameworks: Java 17+, Spring Boot, Jersey (JAX-RS), Spring Batch, Kotlin, JPA

• Architecture: Microservices, REST APIs, mTLS, stateless design

• Platforms: OpenShift, Kubernetes, Docker, Linux

• CI/CD & Tools: Azure DevOps (or similar), Git, Maven

• Testing: JUnit, Karate (integration testing)

• Databases: Cassandra (NoSQL)

• Messaging & Monitoring: Kafka, Elastic

What You Bring

• A degree in Computer Science or related field

• 8–10+ years of experience in Java software engineering

• Strong understanding of distributed systems and scalable architectures

• Expertise in cloud-native development and containerized deployments

• Passion for automation and DevOps principles

• Solid understanding of secure APIs, integration patterns, and event-driven design

• Familiarity with payment systems is a plus

• Excellent communication skills and a collaborative mindset