Senior Java Developer - Java, Springboot & AWS – paying up to £600/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering … culture. What You'll Be Doing: Build and scale backend services using Java and Spring Boot Shape a modern microservices architecture for a high-availability platform Deploy and manage services in AWS with Kubernetes (EKS) Design, implement, and own features end-to-end from discovery to production support Advocate for clean code, automated testing, and CI/CD best practices … with cross-functional teams including product, design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributed systems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid SQL More ❯
london (city of london), south east england, united kingdom
Arrows
Senior Java Developer - Java, Springboot & AWS – paying up to £600/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering … culture. What You'll Be Doing: Build and scale backend services using Java and Spring Boot Shape a modern microservices architecture for a high-availability platform Deploy and manage services in AWS with Kubernetes (EKS) Design, implement, and own features end-to-end from discovery to production support Advocate for clean code, automated testing, and CI/CD best practices … with cross-functional teams including product, design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributed systems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid SQL More ❯
technical expertise, collaborative mindset, and an ability to deliver innovative solutions that align with business objectives. Experience Requirements Software Development & Principles Programming Languages: Proficiency in one or more of: Java, Spring Boot, Python, JavaScript, TypeScript, ReactJS SOLID Principles: Familiarity with object-oriented and clean coding practices Testing & BDD Unit Testing Frameworks: Experience with Cypress, Cucumber, Behave, Selenium, or similar tools More ❯
london (city of london), south east england, united kingdom
Experis UK
technical expertise, collaborative mindset, and an ability to deliver innovative solutions that align with business objectives. Experience Requirements Software Development & Principles Programming Languages: Proficiency in one or more of: Java, Spring Boot, Python, JavaScript, TypeScript, ReactJS SOLID Principles: Familiarity with object-oriented and clean coding practices Testing & BDD Unit Testing Frameworks: Experience with Cypress, Cucumber, Behave, Selenium, or similar tools More ❯
approaches to observability, SRE, and DevSecOps in production systems Act as a trusted point of contact for both internal and client-facing technical discussions Key Skills & Experience Proficiency in Java, Python, Go, JavaScript/TypeScript Strong experience with frameworks and tools including Spring Boot, React, Node.js, Docker, Kubernetes, and Terraform Deep understanding of modern architecture patterns such as microservices, RESTful More ❯
london (city of london), south east england, united kingdom
Damia Group
approaches to observability, SRE, and DevSecOps in production systems Act as a trusted point of contact for both internal and client-facing technical discussions Key Skills & Experience Proficiency in Java, Python, Go, JavaScript/TypeScript Strong experience with frameworks and tools including Spring Boot, React, Node.js, Docker, Kubernetes, and Terraform Deep understanding of modern architecture patterns such as microservices, RESTful More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Kite Consulting Group
dispersed engineering teams (20-30+ heads) in global banks. Experience with Microsoft-based legacy systems (.NET, C#, SQL, Azure, on-prem/cloud) and emerging technologies including Linux, Java, microservices, and containerisation (Docker, Kubernetes, Helm, Camunda). Proficiency in CI/CD pipelines (Jenkins), version control (GitHub/GitLab/BitBucket), backend/frontend frameworks (Spring Boot, Angular, React More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Kite Consulting Group
dispersed engineering teams (20-30+ heads) in global banks. Experience with Microsoft-based legacy systems (.NET, C#, SQL, Azure, on-prem/cloud) and emerging technologies including Linux, Java, microservices, and containerisation (Docker, Kubernetes, Helm, Camunda). Proficiency in CI/CD pipelines (Jenkins), version control (GitHub/GitLab/BitBucket), backend/frontend frameworks (Spring Boot, Angular, React More ❯
Tools - Nx Dev/Yarn/npm · Platform - Docker/Nginx Desirable Technical Skills · Serverless · AWS/GCP – API Gateway/Lambda · Orchestration Stack – Kubernetes/Nomad · Experience with Java and Python Education & Experience Bachelor’s degree in computing, science, or engineering. At least 3 years of software development experience in a commercial environment. Track record of delivery and support More ❯
layer. Ensure compliance with security policies and participate in audits and vulnerability remediation. Maintain accurate documentation, including topology diagrams, runbooks, and configuration baselines. Support proprietary messaging APIs using C++, Java, Python, and C# programming languages. Provide support for proprietary cache and gateways that integrate applications with the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ messaging More ❯
london (city of london), south east england, united kingdom
Fimatix
Tools - Nx Dev/Yarn/npm · Platform - Docker/Nginx Desirable Technical Skills · Serverless · AWS/GCP – API Gateway/Lambda · Orchestration Stack – Kubernetes/Nomad · Experience with Java and Python Education & Experience Bachelor’s degree in computing, science, or engineering. At least 3 years of software development experience in a commercial environment. Track record of delivery and support More ❯
london (city of london), south east england, united kingdom
BGC Group
layer. Ensure compliance with security policies and participate in audits and vulnerability remediation. Maintain accurate documentation, including topology diagrams, runbooks, and configuration baselines. Support proprietary messaging APIs using C++, Java, Python, and C# programming languages. Provide support for proprietary cache and gateways that integrate applications with the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ messaging More ❯
City of London, London, United Kingdom Hybrid / WFH Options
mkodo
for critical work, but your greatest impact will come from technical leadership, enabling teams to deliver robust, scalable, and secure services. With a strong foundation in backend technologies, including Java and Spring Boot, and event-driven systems such as Kafka, you’ll influence systems well beyond your own code, ensuring architectural integrity and high engineering standards across multiple teams. You … details, including day-to-day duties and responsibilities on our website: mkodo careers 🤩We’d love to hear from you if... You have strong backend engineering experience, ideally including Java (Java 11+) and Spring Boot. You have proven ability to design and lead backend architectures for complex systems. You are familiar with cloud environments (AWS is mandatory) and container orchestration More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
mkodo
for critical work, but your greatest impact will come from technical leadership, enabling teams to deliver robust, scalable, and secure services. With a strong foundation in backend technologies, including Java and Spring Boot, and event-driven systems such as Kafka, you’ll influence systems well beyond your own code, ensuring architectural integrity and high engineering standards across multiple teams. You … details, including day-to-day duties and responsibilities on our website: mkodo careers 🤩We’d love to hear from you if... You have strong backend engineering experience, ideally including Java (Java 11+) and Spring Boot. You have proven ability to design and lead backend architectures for complex systems. You are familiar with cloud environments (AWS is mandatory) and container orchestration More ❯
Tools - Nx Dev/Yarn/npm Platform - Docker/Nginx Desirable Technical Skills Serverless AWS/GCP – API Gateway/Lambda Orchestration Stack – Kubernetes/Nomad Experience with Java and Python Education & Experience Bachelor’s degree in computing, science, or engineering. At least 3 years of software development experience in a commercial environment. Track record of delivery and support More ❯
london (city of london), south east england, united kingdom
McCabe & Barton
Tools - Nx Dev/Yarn/npm Platform - Docker/Nginx Desirable Technical Skills Serverless AWS/GCP – API Gateway/Lambda Orchestration Stack – Kubernetes/Nomad Experience with Java and Python Education & Experience Bachelor’s degree in computing, science, or engineering. At least 3 years of software development experience in a commercial environment. Track record of delivery and support More ❯
infrastructure-as-code (Terraform, CloudFormation, Crossplane, Ansible). Proven ability to architect and deploy containerised systems (Docker, Kubernetes) at scale. Proficiency in one or more modern languages — Go, Python, Java, Ruby, TypeScript. Solid understanding of CI/CD , DevOps automation , and secure cloud operations . Strong communication and stakeholder management skills — able to influence at both technical and executive levels. More ❯
infrastructure-as-code (Terraform, CloudFormation, Crossplane, Ansible). Proven ability to architect and deploy containerised systems (Docker, Kubernetes) at scale. Proficiency in one or more modern languages — Go, Python, Java, Ruby, TypeScript. Solid understanding of CI/CD , DevOps automation , and secure cloud operations . Strong communication and stakeholder management skills — able to influence at both technical and executive levels. More ❯
london (city of london), south east england, united kingdom
Inara
infrastructure-as-code (Terraform, CloudFormation, Crossplane, Ansible). Proven ability to architect and deploy containerised systems (Docker, Kubernetes) at scale. Proficiency in one or more modern languages — Go, Python, Java, Ruby, TypeScript. Solid understanding of CI/CD , DevOps automation , and secure cloud operations . Strong communication and stakeholder management skills — able to influence at both technical and executive levels. More ❯
london (city of london), south east england, united kingdom
Inara
infrastructure-as-code (Terraform, CloudFormation, Crossplane, Ansible). Proven ability to architect and deploy containerised systems (Docker, Kubernetes) at scale. Proficiency in one or more modern languages — Go, Python, Java, Ruby, TypeScript. Solid understanding of CI/CD , DevOps automation , and secure cloud operations . Strong communication and stakeholder management skills — able to influence at both technical and executive levels. More ❯
ensure seamless integration within a complex, enterprise-grade platform. Develop clean, efficient, and maintainable code using JavaScript and modern front-end frameworks (e.g., React), while leveraging broader language experience (Java, Python) to support full-stack collaboration. Collaborate with cloud infrastructure teams (AWS, Azure, or GCP) to support performance optimization, environment configuration, and scalable feature delivery in cloud-native applications. Establish More ❯
london (city of london), south east england, united kingdom
Miryco Consultants Ltd
ensure seamless integration within a complex, enterprise-grade platform. Develop clean, efficient, and maintainable code using JavaScript and modern front-end frameworks (e.g., React), while leveraging broader language experience (Java, Python) to support full-stack collaboration. Collaborate with cloud infrastructure teams (AWS, Azure, or GCP) to support performance optimization, environment configuration, and scalable feature delivery in cloud-native applications. Establish More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Tenth Revolution Group
driven architecture Platforms: Go, CDK, AWS Skills and experience: -Proficient in JavaScript and ideally familiar with Go , with a strong enthusiasm for learning and applying new technologies beyond the Java ecosystem -Comfortable working in modern engineering environments , including Agile methodologies, DevOps practices , and cloud-native architectures using platforms like AWS -Actively contributes ideas around emerging technologies , solution design , and delivery More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Tenth Revolution Group
driven architecture Platforms: Go, CDK, AWS Skills and experience: -Proficient in JavaScript and ideally familiar with Go , with a strong enthusiasm for learning and applying new technologies beyond the Java ecosystem -Comfortable working in modern engineering environments , including Agile methodologies, DevOps practices , and cloud-native architectures using platforms like AWS -Actively contributes ideas around emerging technologies , solution design , and delivery More ❯
Markets applications, including Cash Equities Experienced with Playwright or other testing tools such as Selenium Strong knowledge of HTML, CSS, JavaScript/Typescript, ideally with some Python, .NET and Java Some knowledge of React Strong analytical skills combined with a structured methodical and hands-on approach with passionate attention to detail Demonstrate good judgement in solving problems as well as More ❯