1 to 25 of 428 Permanent Java Jobs in London

Job Title: Senior Java Developer Role Summary: We are looking for a highly skilled Senior Java Developer to design, develop, and maintain enterprise-grade applications. The role involves working closely with architects, business analysts, and cross-functional teams to deliver scalable, secure, and high-performing solutions. Key Responsibilities: Design, develop, and implement robust Java-based applications for enterprise use. Collaborate … compliance with security standards. Troubleshoot, debug, and resolve complex production issues. Contribute to continuous improvement in development processes and tools. Required Skills & Experience: 5 8+ years of experience in Java/J2EE application development. Strong knowledge of Core Java, Spring Framework (Spring Boot, Spring MVC, Spring Security), Hibernate/JPA. Hands-on experience with RESTful APIs, Microservices architecture, and messaging More ❯

Job Title: Senior Java Developer Role Summary: We are looking for a highly skilled Senior Java Developer to design, develop, and maintain enterprise-grade applications. The role involves working closely with architects, business analysts, and cross-functional teams to deliver scalable, secure, and high-performing solutions. Key Responsibilities: Design, develop, and implement robust Java-based applications for enterprise use. Collaborate … compliance with security standards. Troubleshoot, debug, and resolve complex production issues. Contribute to continuous improvement in development processes and tools. Required Skills & Experience: 5–8+ years of experience in Java/J2EE application development. Strong knowledge of Core Java, Spring Framework (Spring Boot, Spring MVC, Spring Security), Hibernate/JPA. Hands-on experience with RESTful APIs, Microservices architecture, and messaging More ❯

at least one cloud platform - GCP, AWS, Azure, OpenShift etc. Excellent knowledge and experience of continuous integration and delivery for fast and secure route to live. Technical understanding of Java and related technologies including Spring Boot, Maven, JSON, Kafka, REST APIs will be very advantageous. Knowledge of infrastructure, Linux, networking and security would be an added advantage. Practical experience with More ❯

Developer. Extensive experience in AWS cloud services, including EC2, S3, Lambda, RDS, DynamoDB, etc. Proficient in front-end technologies (HTML, CSS, JavaScript, React or Angular) and back-end languages (Java, Python, Node.js, etc.). Solid understanding of RESTful APIs and microservices architecture. Experience with version control systems (Git). Familiarity with Agile/Scrum development methodologies. Excellent problem-solving skills More ❯

have much of the following, but it's ok if you don't check every box: Hands on Software Engineering background with experience in building large scale applications in Java, using a broad set of tools, techniques, and platforms, with a focus on proving it works and does the right thing. Experience working with Spring, Hibernate, REST APIs, JSON, Microservices 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 ❯

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 ❯

experimentation is encouraged. 7+ years of experience building backend systems in a production environment. 3+ years of hands-on experience with modern software architecture and scalable frameworks. Proficiency in Java (Spring Boot), Python, or similar. Proficiency in JavaScript/TypeScript with frameworks like React (preferred), Angular, Vue, or similar. Solid understanding of scalable, service-oriented architectures in a cloud or More ❯

test automation Fluency in functional and object -oriented programming languages . Competency in using Git, CI/CD platforms, Docker and Kubernetes. Familiarity with More than one of: C#, Java, Python, and C++ Databases such as: MSSQL, Postgres, Redis Kafka/RabbitMQ or similar event-based platforms Data structures and design/analysis of algorithms Not required, but a bonus More ❯

and scalability. Collaborative Spirit works fluidly with data scientists, commercial teams, and ops leaders. Hard Skills Required Software Engineering: Strong in at least one modern language (JavaScript/TypeScript, Java, Python) Web & Product Development: Frameworks (React, Node.js, Django/Flask) AI, GenAI and LLMs: OpenAI, Gemini, Grok, Llama Agentic AI: Frameworks (langchain, langgraph, Google ADK) AI enabled code tooling: Cursor More ❯

pipelines Ability to design, build, and deploy data solutions that capture, explore, transform, and utilize data to support AI, ML, and BI Strong ability in programming languages such as Java, Python, and C/C++ Ability in data science languages/tools such as SQL, R, SAS, or Excel Proficiency in the design and implementation of modern data architectures and More ❯

governance frameworks and practices. Understanding of machine learning workflows and how to support them with robust data pipelines. DESIRABLE LANGUAGES/TOOLS Proficiency in programming languages such as Python, Java, Scala, or SQL for data manipulation and scripting. Strong understanding of data modelling concepts and techniques, including relational and dimensional modelling. Experience in big data technologies and frameworks such as More ❯

be conversant with emerging technologies - chatbots, voice/conversational interfaces, RPA, Machine Learning, etc. " In-depth, hands-on experience in developing web/mobile applications or platform with either Java/J2EE or .NET tech stack and database technologies such as Oracle, MySQL, etc. " Exposure to polyglot programming languages like Scala, Python and Golang will be a plus " Ability to More ❯

professional environment. Proven experience designing and developing robust APIs, microservices, and backend systems that power business-critical workflows. Experience with at least one of the following languages: Go, Python, Java, C#, or C++. We primarily use Go and Python - familiarity with these is a strong advantage. Solid knowledge of relational databases and proficiency in SQL (e.g., MySQL). Practical experience More ❯

approach and passion to problem solving and product development. 1+ years of software development experience. Expert Knowledge in One Or More Of Programming in a compiled language such as Java, or C++ or an interpreted language such as Python and experience with concurrency and memory management. Responsive web development, with professional React/Angular/Redux experience and advanced JavaScript More ❯

e.g. Entra) • Comfortable building and developing Infrastructure templates with Infrastructure as Code using either: Terraform, Cloudformation, Deployment Manager or ARM • Linux and Windows administration • Software development experience – ideally in Java, Kotlin, Python, Apps Script, JavaScript or C#/C++ • Containerisation experience such as Docker, Kubernetes or OpenShift • Experience of security protocols such as PKI, TLS etc • Virtualisation experience, KVM/ More ❯

experimentation is encouraged. 7+ years of experience building backend systems in a production environment. 3+ years of hands-on experience with modern software architecture and scalable frameworks. Proficiency in Java (Spring Boot), Python, or similar. Proficiency in JavaScript/TypeScript with frameworks like React (preferred), Angular, Vue, or similar. Solid understanding of scalable, service-oriented architectures in a cloud or More ❯

group. Minimum Qualifications: Bachelor's degree in computer science, engineering, or a related discipline 7+ years' experience in a software engineering role or environment Proficiency in Go and Python; Java, Kotlin and/or JavaScript are a strong plus Experience working with Kubernetes, Containers, and Helm Experience developing and deploying scalable solutions in both on-premise and public cloud environments More ❯

scale applications with focus on performance, scalability, security, and reliability. Experience in a highly Agile continuous integration and continuous deployment environment, preferably within a financial domain. Strong experience in Java/J2EE, Spring Boot, Mule, web Services, Kafka, SQL & PL/SQL (Oracle) Strong knowledge of XML, JSON and its usage within API and Microservice implementations at scale. Experience in More ❯

and reliability. 7+ years experience overseeing enterprise-grade platform solutions Experience in a highly Agile continuous integration and continuous deployment environment, preferably within a financial domain. Strong experience in Java/J2EE, Spring Boot, Mule, web Services, Kafka, SQL & PL/SQL (Oracle) Strong knowledge of XML, JSON and its usage within API and Microservice implementations at scale. Significant expertise More ❯

and reliability. 7+ years’ experience overseeing enterprise-grade platform solutions Experience in a highly Agile continuous integration and continuous deployment environment, preferably within a financial domain. Strong experience in Java/J2EE, Spring Boot, Mule, web Services, Kafka, SQL & PL/SQL (Oracle) Strong knowledge of XML, JSON and its usage within API and Microservice implementations at scale. Significant expertise More ❯

Familiarity with .NET Entity Framework (EF Core) Knowledge of web accessibility standards and best development practices Bonus Skills: Exposure to microservices built in additional languages (e.g., JavaScript, TypeScript, or Java) Experience integrating with NoSQL solutions like MongoDB or Cosmos DB Interest in working with large language models (LLMs) using tools like LangChain Experience with templating systems or design frameworks such More ❯

Familiarity with .NET Entity Framework (EF Core) Knowledge of web accessibility standards and best development practices Bonus Skills: Exposure to microservices built in additional languages (e.g., JavaScript, TypeScript, or Java) Experience integrating with NoSQL solutions like MongoDB or Cosmos DB Interest in working with large language models (LLMs) using tools like LangChain Experience with templating systems or design frameworks such More ❯