151 to 175 of 1,598 Java Jobs in London

focused on building and supporting highly scalable backend systems for live and Video on Demand streaming services. The developer will work primarily with Java and Spring, developing end-user applications and scalable APIs while contributing to technical direction, architecture/design decisions, production support, system reliability, and continuous improvement. … security, resiliency, and performance, along with strong collaboration across development, architecture, and other teams. In this role, you will: Develop and maintain components using Java and Spring, covering new features, fixes, enhancements, and existing functionality. Build well-tested, robust and reliable code, including handling edge cases and usability considerations Identify ...

passionate about developing your career, while helping others along the way, come join the Broadridge team.We are seeking an exceptional **Principal Engineer – Full Stack Java** to provide technical leadership and architectural direction for client-facing solutions supporting the implementation and ongoing evolution of the Gloss product. In this role … support, and the use of AI-assisted engineering tools. **Requirements** * 12+ years of professional software development experience, including substantial hands-on experience in Core Java, Spring, and Spring Boot.* Proven experience operating as a Principal Engineer, Solution Architect, Lead Architect, or senior technical leader with responsibility for technical strategy, platform ...

Global Banking Technology team, you will own end-to-end delivery of secure, full stack features — turning requirements into solid designs, shipping clean Java code, and improving services built on microservices, Kafka/event-driven patterns, and CI/CD pipelines. You will troubleshoot complex production issues, drive performance … proficient applied experience Demonstrated ownership of system design and delivery for production services, including testing strategy, release execution, and operational support Strong proficiency in Java and common frameworks such as Spring Boot, Hibernate, JPA, and Spring Kafka, including performance tuning and troubleshooting patterns Working knowledge of microservices and Kafka/ ...

contributing to discovery-phase builds while ensuring performance, security, and usability are embedded from the outset. Key Responsibilities Design, develop, and test applications using Java/Spring Boot, Python, TypeScript, and Angular. (mix of FE and BE) Build and consume RESTful APIs and integrate with back-end microservices. Develop prototype … discovery outcomes. Support integration of front-end components with APIs and event-driven back-end systems. Essential Skills & Experience Solid hands-on experience with Java/Spring Boot and TypeScript/Angular in production or prototype environments. Working knowledge of Python for API or integration scripting. Strong understanding of Azure ...

Java Developer ( SC Eligible/SC Cleared ) London, United Kingdom | Posted on 10/11/2026 Scrumconnect Consulting is a multi-award-winning UK digital consultancy. We help public and private sector organisations design and deliver better digital services, working in agile, multidisciplinary teams on services used by millions … people every day. Role Overview We are looking for a talented Java Developer to join our team and help design, build and maintain high-performance applications. You will have a solid grounding in Java and enjoy working with modern tools and frameworks. You will play a key part in building ...

Software Engineer to design, develop and improve scalable software for real-time, event‐driven platforms across Barclays’ digital ecosystem. You will work with Java, Spring and Kafka in a microservices environment, collaborating with product managers and designers to deliver robust solutions. The role requires deep knowledge of AWS, OpenShift/ ...

technical delivery What you'll bring Proven full stack experience across design, development, testing and deployment Strong skills in languages and frameworks such as Java, Kotlin, Python, C++ or .NET Cloud platform experience with Azure, AWS and/or GCP Experience with microservices and containerisation (Docker, Kubernetes) is a plus ...

access to over 19,000 financial markets. Mode of working: Hybrid (2‐3 days from London office) What you will need for the role Java & Spring/Spring Boot: 8+ years of extensive experience in building and deploying back‐end services. 8+ years of experience in Backend development. MongoDB ...

experience. Graduate degree preferred Experience Expertise in frontend technologies (e.g. Vue.js, React) with a strong sense for UI/UX Proven backend experience with Java, ideally with Python and Node.js experience as well, including building distributed microservices based architectures Strong understanding of system design principles, scalable architecture patterns ...

software solutions. What are we looking for: Bachelor's or Master's degree in Computer Science, Engineering, or related field Proficiency in C# .NET, Java, or Go, with a strong understanding of software development principles in either a backend or full stack environment. Great communication skills and ability to interact ...

using prompt design, agent workflows, tool integration, and retrieval-augmented generation Programming experience in at least two modern languages or frameworks (such as Python, Java, JavaScript, React, Node.js) Experience building and consuming RESTful application programming interfaces and tuning performance in large-scale applications Experience with cloud platforms and containerization ...

Formal training or certification on software engineering concepts and proficient applied experience. Recent hands-on experience as a back-end software engineer Proficiency in Java and Python programming languages Experience designing and implementing effective tests (unit, component, integration, end-to-end, performance) Excellent written and verbal communication skills in English ...

delivery. Strong system-design judgement, including architecture, interfaces, trade-offs and reliability. Proficiency in a typed programming language; TypeScript/Node.js, Python, Go, Java, Kotlin or similar. Experience with cloud platforms such as AWS or GCP and modern deployment practices. Startup or scale-up experience, with initiative, technical depth ...

related technical field Linux: understands the OS architecture, fluent user of the command line, can fluently speak either Perl or Python, UNIX scripting, Java Cloud native: skilled in building and running applications that fully leverages cloud computing, using technologies like microservices , containers , and dynamic orchestration CI/CD: Hands ...

compliance in financial services. Experience with CI/CD concepts, Git and end to end software delivery lifecycle Experience with OOP languages such as Java Exposure to front end technologies such as JavaScript and React #J-18808-Ljbffr ...

architecture of our AI development platform. Improve engineering processes, documentation, and operational practices across the team. Minimum Qualifications Professional software development experience using Java within a production environment. Experience across the full lifecycle (designing, building, testing, and operating) of real-time data processing pipelines, utilizing at least one core streaming ...

certification on software engineering concepts and advanced applied experience Hands-on practical experience delivering system design, application development, testing, and operational stability Advanced Java and Typescript experience Demonstrated experience leading effective use of enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, code review, test ...

design, prompt versioning, and production observability Cloud-native engineering maturity: Kubernetes, Docker, microservices, serverless, CI/CD, and IaC (Terraform or Helm) Strong Python; Java or equivalent backend language acceptable; production debugging and observability experience Quality of experience is weighted over years, a candidate who has shipped three production agentic ...

concepts and proficient advanced experience. Recent hands-on experience as a back-end software engineer, especially with customer-facing, LLM-powered microservices Proficiency in Java and Python programming languages Experience designing and implementing effective tests (unit, component, integration, end-to-end, performance) Excellent written and verbal communication skills in English ...

experience in back-end development or related field, with a focus on server-side technologies. Strong knowledge of programming languages such as Python, Java, or Node.js, and experience with back-end frameworks. Familiarity with databases (SQL and NoSQL) and experience in building and optimizing data storage solutions. Understanding of RESTful ...

e.g. Quartz, SecDB. with strong Python skills. Distributed Risk calculations leveraging on-prem and/or off-prem infrastructure. Knowledge of Object Oriented Language (Java, C++). #J-18808-Ljbffr ...

experience ESSENTIAL Pro at using SQL for data manipulation (PostgreSQL, MSSQL, Google BigQuery, SparkSQL, etc.) Strong coding skills in Python, R, Scala, C, Java, or JS Proven track record of using data manipulation and machine learning libraries Practical modelling & statistical analysis experience, ideally customer-related Strong communication skills with proven ...

through monitoring, automation, and thoughtful system design to maintain high standards of availability and performance. Minimum Qualifications Professional production experience developing backend systems with Java or Kotlin, and Spring Boot. Experience designing distributed, event-driven systems with a proven ability to manage asynchronous high-load challenges. Experience participating ...

architecture of our AI development platform. Improve engineering processes, documentation, and operational practices across the team. Minimum Qualifications Professional software development experience using Java within a production environment. Experience across the full lifecycle (designing, building, testing, and operating) of real-time data processing pipelines, utilizing at least one core streaming ...

seeking the following: Hands-on AI development using modern tools and IDEs (e.g., Windsurf). Solid understanding of programming concepts and microservices Proficiency in Java with Spring. Experience with CI/CD, automated testing (JUnit/Spock), and containers (Docker). Familiarity with microservices, observability/telemetry (e.g., Splunk, AppDynamics ...