Java with AWS Architect

Luxoft; Greater London; On-site; GBP 70,000 - 95,000; Full time

Job summary

Luxoft Financial Services, part of DXC Luxoft, is seeking a seasoned Java developer to upgrade legacy systems, migrate to stateless microservices, and implement Kafka-based event-driven integrations. The role emphasizes high performance, security, and reliability in a demanding financial services environment.

You will work across large-scale distributed systems, align with modern software practices, and collaborate with QA, DevOps, and architecture teams to deliver robust solutions.

Qualifications

• 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.

Responsibilities

• Design and implement solutions for upgrading legacy applications and refactoring to modern microservices.
• Collaborate with QA, DevOps, and architecture teams on migration and rollout strategies.
• Ensure high standards of performance, resilience, and fault tolerance.
• Participate in code reviews and technical design discussions, and provide production support.

Skills

Java development

Java ecosystem

Spring / Spring Boot

Maven / Gradle

Java libraries upgrades

Security vulnerabilities

Secure coding

Debugging & troubleshooting

Git & CI/CD

Legacy Java apps

Upgrades impact assessment

Unit & integration testing

Tools

Maven/Gradle

Git

CI/CD

Docker

Kubernetes

AWS

Job description

Project description

We are DXC Luxoft Financial Services - an award-winning provider of technology solutions, dedicated to the Financial Services sector.Join our international team and become a member of our open minded, progressive and professional team of financial services consultants. In this role you will be working on projects for biggest investment banks across the globe. You will have a chance to grow your technical and soft skills, and build a thorough expertise in the Capital Markets industry. On top of attractive salary and benefits package, we will invest into your professional training, and allow you to grow your professional career.

Responsibilities

• This initiative focuses on:- Upgrading legacy applications to modern Spring Boot versions (2.x → 3.x)- Decommissioning and replacing Hazelcast across distributed systems- Refactoring applications to align with modern, cloud-ready, stateless architectures- Enhancing integration with event-driven systems using Apache Kafka- Supporting applications connected to Murex batch and real-time processing flowsThis is a high-impact program in a low-latency financial environment, where system stability, performance, and correctness are critical.We are seeking a Java developer who can design and build with minimum supervision solutions for our team. The person needs to be knowledgeable on modern software development practices including Scrums, be up to date with the latest Java tools and frameworks and be able to work with the existing team to deliver solutions. The ideal candidate will be diligent, tenacious and delivery focused with a track record of building high quality solutions that are resilient and maintainable. Use of cloud technology is increasing, so experience working with AWS would be beneficial.- Design and implement solutions for:- Spring Boot & Hazelcast upgrades (including major version transitions)- Analyze existing distributed system usage (caching, clustering, 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 supportPost-project opportunity:Following successful delivery of this modernization initiative, team members are planned to be reassigned to other strategic programs within the client’s long-term roadmap, offering continued growth and exposure to new initiatives.

SKILLS

Must have

• Technical
• 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.

Nice to have

• 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.