Senior Java Developer

Salary: £48,000 - 68,000 per year

Requirements:

• Strong commercial Java development experience.
• Strong knowledge of Java and the wider Java ecosystem.
• Experience with Spring and/or Spring Boot.
• Experience managing dependencies using Maven and/or Gradle.
• Experience upgrading Java libraries, frameworks and third-party dependencies.
• Experience identifying, investigating and remediating software security vulnerabilities.
• Good understanding of secure coding practices and common application security risks.
• Strong debugging, troubleshooting and problem-solving skills.
• Experience working with Git and CI/CD pipelines.
• Experience working with established or legacy Java applications.
• Experience assessing the impact of upgrades and remediation changes on existing systems.
• Experience with unit and integration testing.
• Experience working with Calypso.
• Experience with code scanning, vulnerability scanning or software composition analysis tools such as Snyk, Veracode, Checkmarx, Black Duck, Sonatype or similar.
• Familiarity with CVEs and CVSS scoring.
• Experience with Docker and Kubernetes.
• Experience working in cloud environments such as AWS, Azure or GCP.
• Knowledge of OWASP principles and DevSecOps practices.
• Experience working within financial services or other regulated environments.
• English: C1 Advanced.

Responsibilities:

• Upgrade legacy applications to modern Spring Boot versions (2.x and 3.x).
• Decommission and replace Hazelcast across distributed systems.
• Refactor applications to align with modern, cloud-ready, stateless architectures.
• Enhance integration with event-driven systems using Apache Kafka.
• Support applications connected to Murex batch and real-time processing flows.
• Design and build solutions with minimum supervision.
• Work with the existing team to deliver solutions.
• Analyze existing distributed system usage, including caching, clustering, and locking.
• Refactor applications toward stateless, scalable microservices.
• Implement and optimize integrations using Kafka-based event-driven architecture.
• Collaborate with QA, DevOps, and architecture teams on migration and rollout strategy.
• Ensure high standards of performance, resilience, and fault tolerance.
• Participate in code reviews, technical design discussions, and production support.

Technologies:

• AWS
• Azure
• CI/CD
• Cloud
• DevSecOps
• DevOps
• Docker
• GCP
• Git
• Gradle
• Support
• Java
• Kafka
• Kubernetes
• Maven
• OWASP
• Security
• Spring
• Spring Boot
• microservices
• VR

More:

We are DXC Luxoft Financial Services, an award-winning provider of technology solutions dedicated to the Financial Services sector. We offer an international, open-minded, progressive, and professional team of financial services consultants working on projects for some of the worlds biggest investment banks. This role offers the chance to grow technical and soft skills, build deep expertise in the Capital Markets industry, and benefit from an attractive salary and benefits package, professional training, and long-term career growth. Following successful delivery of this modernization initiative, team members are planned to be reassigned to other strategic programs within our clients long-term roadmap, offering continued growth and exposure to new initiatives. The role is based in London, United Kingdom, and is a Lead-level Java position.

last updated 36 week of 2026