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5 senior java developer jobs found in London

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London senior java developer £500 - £600
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Outside Spy
Oct 12, 2026
6 Months or more
Senior Backend Developer, Java, AWS at Sanderson Recruitment Plc, London, 6 Months, £550-£600 per day
£550 - £600 per day
Outside Spy London, UK
Senior Backend Developer (Java/AWS) Rate: £500-£600 per day (Outside IR35) Location: London (3 days per month onsite) Duration: Initial 6-month contract Overview We're supporting a financial services client looking for a Senior Backend Developer to help deliver and optimise a suite of cloud-native services. This is a hands-on engineering role with significant involvement in solution design, technical direction, and code quality. What You'll Be Doing Developing scalable Back End services using Java and Spring Boot Designing and building RESTful APIs and event-driven solutions Deploying and maintaining applications within AWS environments Contributing to architecture, engineering standards, and best practices Supporting CI/CD processes and Infrastructure as Code initiatives Participating in code reviews and mentoring other developers Key Skills & Experience Strong commercial experience with Java (ideally Java 21+) and Spring Boot Proven background building...
Outside Spy
Oct 12, 2026
Duration not stated
Senior Backend Developer, Java, AWS at Sanderson , London, £550-£600 per day
£550 - £600 per day
Outside Spy London, UK
Senior Backend Developer (Java / AWS) Rate: £500- £600 per day (Outside IR35) Location: London (3 days per month onsite) Duration: Initial 6-month contract Overview We 're supporting a financial services client looking for a Senior Backend Developer to help deliver and optimise a suite of cloud-native services. This is a hands-on engineering role with significant involvement in solution design, technical direction, and code quality. What You 'll Be Doing Developing scalable backend services using Java and Spring Boot Designing and building RESTful APIs and event-driven solutions Deploying and maintaining applications within AWS environments Contributing to architecture, engineering standards, and best practices Supporting CI/CD processes and Infrastructure as Code initiatives Participating in code reviews and mentoring other developers Key Skills & Experience Strong commercial experience with Java (ideally Java...
Outside Spy
Oct 09, 2026
6 Months or more
Senior Backend Developer (Java/Spring Boot/AWS) at Sanderson Recruitment Plc, London, 6 Months, £500-£600 per day
£500 - £600 per day
Outside Spy London, UK
Senior Backend Developer (Java/Spring Boot/AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain cloud-based services on AWS. The work is hands-on and includes code reviews and input into technical decisions. Responsibilities: Build REST and event-driven microservices in Java and Spring Boot Deploy and support services on AWS (eg ECS/EKS, Lambda, RDS, DynamoDB, SQS/SNS) Own services from design through to production support Maintain CI/CD pipelines and infrastructure as code (Terraform, CloudFormation or CDK) Review code and contribute to architecture decisions Essential skills: Commercial experience with Java 21 and Spring Boot Building and running applications on AWS Microservices and API design Reasonable Adjustments: Respect and equality are core values to us. We are...
Outside Spy
Oct 09, 2026
Duration not stated
Senior Backend Developer (Java / Spring Boot / AWS) at Sanderson , London, £500-£600 per day
£500 - £600 per day
Outside Spy London, UK
Senior Backend Developer (Java / Spring Boot / AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I 'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain cloud-based services on AWS. The work is hands-on and includes code reviews and input into technical decisions. Responsibilities: Build REST and event-driven microservices in Java and Spring Boot Deploy and support services on AWS (e.g. ECS/EKS, Lambda, RDS, DynamoDB, SQS/SNS) Own services from design through to production support Maintain CI/CD pipelines and infrastructure as code (Terraform, CloudFormation or CDK) Review code and contribute to architecture decisions Essential skills: Commercial experience with Java 21 and Spring Boot Building and running applications on AWS Microservices and API design...
Outside Spy
Oct 13, 2026
6 Months or more
Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance at We Are Orbis Group Ltd, London, 6 Months, to £600 per day outside IR35
£500 - £600 per day
Outside Spy London, Hybrid, UK
Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Permrequirement for an immediate start. The Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Perm will be working for a leading specialty insurance broking group, Embedded as the senior technical lead within one of several product squads. You'll work alongside a Development Manager, Product Owner and development team, owning technical direction with genuine autonomy and influence. Principal/Lead Developer - AI-Assisted Engineering - Java/React - London Market Insurance - Contract to Perm Key Skills: A career software developer, with a distinguished-engineer mindset: you own outcomes, not tickets London Market experience is essential, ideally gained within a broker (eg building or supporting a broker workbench or placement platform). Insurer, MGA, carrier or InsurTech backgrounds will also be considered Strong...
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