Principal Java Developer - VP | Java, Spring Boot, AWS | Investment BankingCentral London - Hybrid (Tuesday, Wednesday and Thursday in the office)c£130,000 + bonus | PermanentA global investment bank is looking for a hands-on Principal Java Developer to take technical ownership of a business-critical trading technology platform. You''ll stabilise it, modernise it and lead its migration to AWS.This is a senior engineering role for someone who still writes code every day. You''ll work closely with the platform architect, set technical direction, and guide a team of experienced engineers and contractors.The roleInvestigate and resolve complex technical issues across a large trading platform, including Pandamp;L and trade servicesImprove platform stability, reliability, performance and latencyDesign and build new services using modern Java (Java 25) and Spring BootLead the migration of existing applications to AWS, replacing Legacy frameworks with cloud-native solutionsSupport the migration of the caching layer to RedisUse AI-assisted development tools (eg Amazon Kiro) to analyse Legacy code and accelerate refactoringProvide technical leadership and mentoring while staying hands-onEssential experienceExtensive enterprise Java development, with recent hands-on production codingStrong Spring Boot and Spring ecosystem expertiseHands-on AWS experience, ideally gained on a cloud migration or modernisation programmeContainerisation and cloud-native application designFinancial services ..... full job details .....