3 senior backend developer jobs found in London

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...

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...

Contract Python Engineers – 3–6 Month Contracts London / Hybrid | £650–£750 pd Outside IR35 I’m working with a heavily VC-backed financial services platform that is going through a really exciting period of global expansion. They’ve built their own technology offering using modern Python and are disrupting a traditionally legacy-heavy sector. They’re now looking to bring in three technically strong Python Engineers on an initial 3–6 month contract, with the potential for further work. This is a small, highly technical team, so they’re looking for engineers who can genuinely stand on their own two feet. You’ll be expected to work across the development lifecycle rather than relying on someone else to handle areas such as testing, architecture or data structures. They’d particularly like to speak with people who have worked in smaller engineering teams, start-ups or scale-ups, where you’ve had to take ownership rather than being one small part of a huge...