Java Software Engineer

Experis (Austria); United Kingdom; Remote; GBP 72,000 - 94,000; Full time

Job summary

IBM is seeking an Application Developer to join a large delivery team supporting the UK government’s critical national infrastructure. You will design, build, and migrate business-critical applications from legacy COBOL, C++, and Java into modern cloud-based solutions using Java, AWS and microservices.

You will collaborate with IBM delivery teams, DWP stakeholders and a programme team to develop, test and support components across the full SDLC, ensuring quality, scalability, and maintainability

Qualifications

• Experience designing, building and migrating Java-based applications.
• Proficiency with cloud-based architectures (AWS) and microservices.
• Strong SQL and database development skills.
• Experience with UNIX/Linux environments and CI/CD workflows.
• Familiarity with RESTful services and web-based applications.
• Experience delivering in Agile environments and collaborating with stakeholders.

Responsibilities

• Design, develop, and maintain Java-based application components.
• Support the refactoring and migration of legacy applications to cloud architectures.
• Collaborate with IBM and DWP teams to deliver programme objectives.
• Develop and support RESTful services and web-based applications.
• Contribute to technical design discussions and solution implementation.
• Ensure code quality through testing, peer reviews, and assurance activities.
• Participate in Agile delivery ceremonies and continuous improvement initiatives.
• Support deployment, troubleshooting, and production issue resolution.
• Maintain technical documentation and development standards.
• Strong commercial experience with Java and Spring Framework.
• Experience working in UNIX/Linux environments.
• Strong SQL development and database experience.
• Experience using GitLab for source control and CI/CD activities.
• Knowledge of software engineering best practices and secure coding principles.
• Experience with AWS cloud technologies.
• Understanding of microservices architecture.
• Experience modernising or migrating legacy applications.

Skills

Java

Spring Framework

AWS

UNIX/Linux

SQL

GitLab CI/CD

Microservices

RESTful services

Agile

Stakeholder communication

Tools

GitLab

Job description

Location: Remote within the UK, with occasional travel to client and IBM offices

Length: initial 12 month contract

Rate: up to £450/day Umbrella

Security Requirement: Applicants must have lived continuously in the UK for the last 5 years

Our client is working with a government organisation, supporting the modernisation of applications that form part of the UK's Critical National Infrastructure and enable the payment of over £150 billion in benefits annually.

As part of this major transformation, legacy applications are being re-factored and migrated from traditional on-premise environments using COBOL, C++ and Java into modern, cloud-based solutions built on Java, AWS, and microservices architecture.

We're looking for an Application Developer to join a large-scale delivery team and play a key role in designing, building, and assuring application changes that will support the successful migration and modernisation of critical DWP services.

The Role

As an Application Developer, you will work closely with IBM delivery teams, DWP stakeholders, and a wider programme team to develop and enhance business-critical applications.

You will contribute across the full software development lifecycle, helping to design, develop, test, and support application components while ensuring quality, scalability, and maintainability throughout the migration process.

Key Responsibilities

• Design, develop, and maintain Java-based application components


• Support the refactoring and migration of legacy applications to modern cloud-based architectures


• Work collaboratively with IBM and DWP teams to deliver programme objectives


• Develop and support RESTful services and web-based applications


• Contribute to technical design discussions and solution implementation


• Ensure code quality through testing, peer reviews, and assurance activities


• Participate in Agile delivery ceremonies and continuous improvement initiatives


• Support deployment, troubleshooting, and production issue resolution where required


• Maintain technical documentation and development standards


• Strong commercial experience with Java and Spring Framework


• Experience working in UNIX/Linux environments


• Strong SQL development and database experience


• Experience using GitLab for source control and CI/CD activities


• Knowledge of software engineering best practices and secure coding principles


• Experience working within Agile delivery environments


• Strong problem-solving and stakeholder communication skills


• Experience with AWS cloud technologies


• Understanding of microservices architecture


• Experience modernising or migrating legacy applications


• Exposure to DevOps tooling and automated deployment pipelines


• Experience working on large-scale public sector or enterprise transformation programmes