1 to 25 of 228 Java Jobs in the City of London

Role: Senior Java Engineer Location: London (Hybrid) We’re looking for an experienced Senior Java Engineer to join our cloud engineering consultancy. In this role you will be playing a key role in delivering high-performance backend services in a fast-moving, cloud-native environment — where releasing multiple times per day is the norm. This is a hands-on engineering … role with the opportunity to work on cutting-edge systems from day one. Tech Stack: Java (with experience with another language such as Golang, Kotlin, Python etc) Spring Boot Kubernetes , AWS Grafana , GitHub Event-driven architecture, microservices CI/CD & rapid delivery tooling What You’ll Be Doing: Build scalable and secure microservices using Java 21 + Spring Boot Collaborate … in a high-frequency release environment — deploying multiple times per day Use Grafana (or similar) for observability and maintain production-grade reliability We’re Looking For: 5+ years of Java engineering experience (Java 11+; ideally Java 21) Strong background with Spring Boot , microservices, and cloud-native design Hands-on with Docker, Kubernetes , AWS , and containerised deployments CI/CD pipeline More ❯

Role: Senior Java Engineer Location: London (Hybrid) We’re looking for an experienced Senior Java Engineer to join our cloud engineering consultancy. In this role you will be playing a key role in delivering high-performance backend services in a fast-moving, cloud-native environment — where releasing multiple times per day is the norm. This is a hands-on engineering … role with the opportunity to work on cutting-edge systems from day one. Tech Stack: Java (with experience with another language such as Golang, Kotlin, Python etc) Spring Boot Kubernetes , AWS Grafana , GitHub Event-driven architecture, microservices CI/CD & rapid delivery tooling What You’ll Be Doing: Build scalable and secure microservices using Java 21 + Spring Boot Collaborate … in a high-frequency release environment — deploying multiple times per day Use Grafana (or similar) for observability and maintain production-grade reliability We’re Looking For: 5+ years of Java engineering experience (Java 11+; ideally Java 21) Strong background with Spring Boot , microservices, and cloud-native design Hands-on with Docker, Kubernetes , AWS , and containerised deployments CI/CD pipeline More ❯

continuously enhance engineering delivery. About You: 5–8 years of professional software engineering experience. Proven expertise with Snowflake (design, optimisation, and performance tuning). Strong programming skills in Python, Java, or similar languages. Solid understanding of modern data engineering practices (ETL/ELT, data pipelines, data modelling). Experience with cloud platforms (AWS, Azure, or GCP). Strong knowledge of More ❯

continuously enhance engineering delivery. About You: 5–8 years of professional software engineering experience. Proven expertise with Snowflake (design, optimisation, and performance tuning). Strong programming skills in Python, Java, or similar languages. Solid understanding of modern data engineering practices (ETL/ELT, data pipelines, data modelling). Experience with cloud platforms (AWS, Azure, or GCP). Strong knowledge of More ❯

Job Specification – SC Cleared Java Architect (Contract) – London Job Title: SC Cleared Java Architect Location: London (Hybrid – 2–3 days onsite per week, remainder remote) Contract Type: Contract (Outside IR35 preferred) Duration: 6–12 months (with potential extension) Clearance Requirement: Active SC (Security Clearance) – must be valid and transferable Role Overview We are seeking an experienced Java Architect with current … clearance to join a large-scale transformation programme within a secure government/defence environment. The successful candidate will provide technical leadership, architectural direction, and hands-on expertise across Java-based platforms, ensuring solutions are robust, scalable, and compliant with security and regulatory standards. Key Responsibilities Define and own the Java application architecture and integration patterns. Provide technical leadership to … architecture reviews, risk assessments, and technical governance. Mentor engineers and contribute to building a strong technical culture. Required Skills & Experience Active SC clearance (mandatory). Strong background as a Java Architect/Senior Java Developer with architecture responsibilities . Proven experience with: Java 11+/Spring Boot/Spring Cloud Microservices and containerisation (Docker, Kubernetes, OpenShift) Cloud platforms (AWS, Azure More ❯

Job Specification – SC Cleared Java Architect (Contract) – London Job Title: SC Cleared Java Architect Location: London (Hybrid – 2–3 days onsite per week, remainder remote) Contract Type: Contract (Outside IR35 preferred) Duration: 6–12 months (with potential extension) Clearance Requirement: Active SC (Security Clearance) – must be valid and transferable Role Overview We are seeking an experienced Java Architect with current … clearance to join a large-scale transformation programme within a secure government/defence environment. The successful candidate will provide technical leadership, architectural direction, and hands-on expertise across Java-based platforms, ensuring solutions are robust, scalable, and compliant with security and regulatory standards. Key Responsibilities Define and own the Java application architecture and integration patterns. Provide technical leadership to … architecture reviews, risk assessments, and technical governance. Mentor engineers and contribute to building a strong technical culture. Required Skills & Experience Active SC clearance (mandatory). Strong background as a Java Architect/Senior Java Developer with architecture responsibilities . Proven experience with: Java 11+/Spring Boot/Spring Cloud Microservices and containerisation (Docker, Kubernetes, OpenShift) Cloud platforms (AWS, Azure 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 ❯

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 ❯

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 ❯

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 ❯

s or Master’s degree in Computer Science, Engineering, or related field. 4–8 years of experience in software development, preferably in financial services or fintech. Strong proficiency in Java, Spring Boot, React.js, and RESTful APIs. Experience with cloud platforms (AWS, Azure, GCP) and CI/CD pipelines. Familiarity with banking systems, digital identity, and secure data handling. Excellent communication More ❯

s or Master’s degree in Computer Science, Engineering, or related field. 4–8 years of experience in software development, preferably in financial services or fintech. Strong proficiency in Java, Spring Boot, React.js, and RESTful APIs. Experience with cloud platforms (AWS, Azure, GCP) and CI/CD pipelines. Familiarity with banking systems, digital identity, and secure data handling. Excellent communication More ❯

engineers, architects, and DevOps teams to deliver robust streaming solutions. Required: • Hands-on experience with Apache Kafka (any distribution: open-source, Confluent, Cloudera, AWS MSK, etc.) • Strong proficiency in Java, Python, or Scala • Solid understanding of event-driven architecture and data streaming patterns • Experience deploying Kafka on cloud platforms such as AWS, GCP, or Azure • Familiarity with Docker, Kubernetes, and More ❯

engineers, architects, and DevOps teams to deliver robust streaming solutions. Required: • Hands-on experience with Apache Kafka (any distribution: open-source, Confluent, Cloudera, AWS MSK, etc.) • Strong proficiency in Java, Python, or Scala • Solid understanding of event-driven architecture and data streaming patterns • Experience deploying Kafka on cloud platforms such as AWS, GCP, or Azure • Familiarity with Docker, Kubernetes, and More ❯

and execution of unimpactful deployments. Maintain and support Live systems. Optimise delivery patterns. Maintain COTS (Commercial off the shelf) products integrated within Live systems. Required Skills & Experience: C#/java, .NET Core Containerisation (Docker, Kubernetes, OpenShift) xUnit Agile working practices CI/CD tooling Scripting experience (Python, Perl, Bash, etc.) ELK (Elastic stack) JavaScript Cypress Linux experience Search engine technology More ❯

wider IP Development team. Requirements: Strong full stack development expertise, with experience in both modern front-end frameworks (e.g. React, Angular, Vue.js) and back-end languages (e.g. Node.js, Python, Java). Hands-on experience with databases (SQL and NoSQL), cloud platforms (Azure/AWS), containerisation (Docker), and CI/CD pipelines. Experience applying AI in a business setting—such as More ❯

wider IP Development team. Requirements: Strong full stack development expertise, with experience in both modern front-end frameworks (e.g. React, Angular, Vue.js) and back-end languages (e.g. Node.js, Python, Java). Hands-on experience with databases (SQL and NoSQL), cloud platforms (Azure/AWS), containerisation (Docker), and CI/CD pipelines. Experience applying AI in a business setting—such as More ❯

About the Role We are seeking an experienced Senior Java Engineer to join our client’s growing engineering team. This is an exciting opportunity to work on high-scale, distributed systems in a collaborative environment, contributing to the design and development of mission-critical applications. The ideal candidate will bring strong expertise in Java (17+) , Spring Boot , and Kafka (or … similar event-driven messaging technologies) , alongside a solid understanding of modern software engineering practices. Key Responsibilities Design, develop, and maintain high-performance Java applications using Java 17+ and Spring Boot. Build and optimise event-driven, distributed systems leveraging Kafka (or similar streaming platforms). Work closely with architects and product teams to design scalable, resilient solutions. Contribute to all phases … best practices through reviews, automated testing, and CI/CD pipelines. Participate in agile ceremonies and collaborate effectively with cross-functional teams. Required Skills & Experience Strong commercial experience with Java 17+ . Deep knowledge of Spring Boot and microservice architecture. Proven hands-on experience with Kafka (or RabbitMQ, Pulsar, or similar). Strong understanding of REST APIs and integration patterns. More ❯

About the Role We are seeking an experienced Senior Java Engineer to join our client’s growing engineering team. This is an exciting opportunity to work on high-scale, distributed systems in a collaborative environment, contributing to the design and development of mission-critical applications. The ideal candidate will bring strong expertise in Java (17+) , Spring Boot , and Kafka (or … similar event-driven messaging technologies) , alongside a solid understanding of modern software engineering practices. Key Responsibilities Design, develop, and maintain high-performance Java applications using Java 17+ and Spring Boot. Build and optimise event-driven, distributed systems leveraging Kafka (or similar streaming platforms). Work closely with architects and product teams to design scalable, resilient solutions. Contribute to all phases … best practices through reviews, automated testing, and CI/CD pipelines. Participate in agile ceremonies and collaborate effectively with cross-functional teams. Required Skills & Experience Strong commercial experience with Java 17+ . Deep knowledge of Spring Boot and microservice architecture. Proven hands-on experience with Kafka (or RabbitMQ, Pulsar, or similar). Strong understanding of REST APIs and integration patterns. More ❯

/DevOps Lead, with a background in Software Engineering/Development Experience working in financial services (Large retail banking) Technologies include: GitLab, TeamCity, Jenkins, Docker, Kubernetes, Ansible Rust, .NET, Java, Python, TypeScript, Gradle, Conda, and other build/deployment tools Expert level understanding of DevOps, CI/CD pipelines, and the ecosystem that surrounds them Please apply for more info. More ❯

5+ years) working with Fidessa systems (AMS, OMAR, FTW or related components). In-depth understanding of equities trading workflows (order management, market connectivity, execution). Excellent skills in Java, C++, or .NET (at least one), plus scripting (Python/Perl) for automation. Solid grasp of FIX protocol, exchange rules, and low-latency trading concepts. Good knowledge of Unix/ More ❯

5+ years) working with Fidessa systems (AMS, OMAR, FTW or related components). In-depth understanding of equities trading workflows (order management, market connectivity, execution). Excellent skills in Java, C++, or .NET (at least one), plus scripting (Python/Perl) for automation. Solid grasp of FIX protocol, exchange rules, and low-latency trading concepts. Good knowledge of Unix/ More ❯

high-quality code Collaborating with colleagues on problem-solving and decision-making Communicating technical decisions effectively within the team ✅ What we’re looking for: 4–5+ years’ experience with Java or Python (C++ a plus) Strong database knowledge ( SQL Server, Postgres ) Experience with cloud providers (AWS, GCP, or Azure) Familiarity with version control (Git) Excellent programming ability and problem-solving More ❯

high-quality code Collaborating with colleagues on problem-solving and decision-making Communicating technical decisions effectively within the team ✅ What we’re looking for: 4–5+ years’ experience with Java or Python (C++ a plus) Strong database knowledge ( SQL Server, Postgres ) Experience with cloud providers (AWS, GCP, or Azure) Familiarity with version control (Git) Excellent programming ability and problem-solving More ❯

across the business to deliver value-driven solutions What were looking for: London/Lloyd's Market experience is essential Strong programming skills in Python and SQL; knowledge of Java or Scala is a plus Solid experience with relational databases and data modelling (Data Vault, Dimensional) Proficiency with ETL tools and cloud platforms (AWS, Azure or GCP) Experience working in More ❯