AWS Application Developer

London · Inside IR35 · £470/day · Contract · Posted 2 November 2026

Your new company You will be working for a large organisation on a remote basis with the occasional travel into the office, 1-2 days a month in London. The rate is £470 per day inside IR35. Your new role Role OverviewWe…

Inside IR35 IT
Pay rate £470/day
Contract type Contract
Location London
Posted 2 November 2026

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About this contract

470 per day inside IR35

Your new company
You will be working for a large organisation on a remote basis with the occasional travel into the office, 1-2 days a month in London. The rate is £470 per day inside IR35.

Your new role Role OverviewWe are looking for an experienced Application Developer specialising in Java and Web Technologies to support a major Legacy Technology Debt programme. The programme is focused on refactoring and modernising applications that form part of the UK's critical national infrastructure and support the payment of more than £150bn in benefits annually.
Working within a large programme team and directly alongside internal teams, you will help modernise applications currently operating across COBOL, C++ and Java environments. These applications are being refactored from existing on-premise data centres into Java-based applications hosted on AWS, using a microservice's architecture.
Key Responsibilities

Lead development activities for the refactoring of key company applications.
Design and develop key application components.
Support the build, update and migration of applications to AWS.
Work closely with client teams and the wider programme team throughout the development lifecycle.
Provide development assurance across key application components.
Contribute to the modernisation of legacy applications into Java-based cloud solutions.
Essential Skills & Experience

Strong Java application development experience.
Proven experience developing Java applications that are being migrated to AWS.
Experience supporting the build, development or migration of applications.
Ability to work effectively within large programme and client-facing teams.
Experience with application design and development.Technical EnvironmentThe wider programme involves:

Java
AWS
Microservices architecture
Legacy technologies including COBOL and C++
Migration from on-premise data centres to AWSWhat you'll need to succeed

What you need to do now
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