1 to 25 of 1,502 Permanent Java Jobs in London

work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Java Developer is a technical position responsible for designing, developing, implementing, and maintaining application systems and programs in coordination with the wider technology team. The overall … application systems analysis and programming activities, ensuring the delivery of high-quality and robust software solutions. Responsibilities Application Development: Design, code, and debug Java applications. Contribute to the entire software development lifecycle, from conception and design to testing and deployment. Technical Contribution: Collaborate with team members to solve technical challenges. ...

consultative approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced Java Engineer to join our engineering team and play a key role in designing, developing, and maintaining scalable, high-performance applications. The ideal candidate will have … strong expertise in Java-based enterprise systems, cloud-native development, and modern software engineering practices. Experience with Artificial Intelligence (AI) technologies and AI-enabled applications is highly desirable. RequirementsKey Responsibilities: Design, develop, test, and maintain enterprise-grade Java applications. Assist with technical design discussions and contribute to architectural decisions. Develop ...

approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced Senior Java Engineer to join our engineering team and play a key role in designing, developing, and maintaining scalable, high-performance applications. The ideal candidate will have … strong expertise in Java-based enterprise systems, cloud-native development, and modern software engineering practices. Experience with Artificial Intelligence (AI) technologies and AI-enabled applications is highly desirable. Key Responsibilities: Design, develop, test, and maintain enterprise-grade Java applications. Assist with technical design discussions and contribute to architectural decisions. Develop ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation in our DNA. … high-performing engineering squad, building and operating business-critical digital services.This is a backend-led fullstack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services, APIs and event-driven workflows. You will also contribute to modern ...

high-performing engineering squad, building and operating business-critical digital services. This is a backend-led fullstack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services, APIs and event-driven workflows. You will also contribute … collaborative, low-ego team culture. What we are looking for Essential experience Strong commercial experience developing server-side applications with Kotlin or modern Java, ideally Java 17 or later. Good knowledge of the JVM ecosystem and common backend development practices. Experience designing, building and operating APIs and distributed services. Understanding ...

Senior Java Engineer – Financial Services Are you a strong, hands-on Java Engineer with experience building high-performance, distributed systems within Banking or Financial Services? We're hiring on behalf of a leading FinTech consultancy that designs and delivers business-critical platforms for some of the world's largest financial … institutions. Previously we've been particularly focused on engineers coming directly from payments, but we're now keen to speak with strong Java Engineers from across the wider Financial Services market. This could include Banking, Payments, Cards/Merchant Acquiring, Trading, Capital Markets, Investment Banking or other high-volume financial ...

Experience Experience developing full stack applications using modern front-end and back-end technologies. Strong programming skills in languages such as JavaScript/TypeScript, Java, C#, Python, or Node.js. Experience with front-end frameworks such as React, Angular, or Vue.js. Experience building and consuming RESTful APIs and microservices. Knowledge ...

Java Developer – FintechTo 65,000Quant Capital is urgently looking for a Java Developer to join our high profile client. Our client is a small fintech firm creating by one of the worlds best known personalities in fintech. They are known for solving one of the common problems in the retail … Review of designs/code and knowledge sharing are key to smooth organizational continuity. Two brains are better than one. Day to Day The Java Developer will: Design, develop, test and deploy micro services into the cloud (AWS)Supporting other business units investigating problems, querying data, and building tools ...

SDLC to rapidly comprehend large codebases, generate production-quality code, and accelerate delivery. Required Qualifications8+ years of professional software development experience in Java (Java 17+ preferred), with strong command of concurrency, collections, and modern language featuresDemonstrated experience with AI-assisted engineering tools (e.g., Claude Code, GitHub Copilot Agent Mode, Devin ...

regulated financial services environments, translating business, risk, compliance and operational requirements into pragmatic technical designs. Required skills Skill Area Technologies/Capabilities Engineering leadership Java, Spring Boot, .NET or Node.js, microservices, REST APIs, event‐driven architectures, OpenAPI/Swagger, integration patterns Front‐end engineering Data & integration SQL, NoSQL, data integration ...

Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate ...

Java Developer - Active SC, Java, Oracle WebLogic Up to £425 per day (Inside IR35) Remote 12 months My client is an instantly recognisable Consultancy who are hiring a Java Developer with Active SC Clearance (Security Cleared), Java, Oracle WebLogic and ElasticSearch skills to work with a high profile end client. … Requirements: Demonstrable experience as a Java Developer Active SC Clearance is essential; NPPV3 would be advantageous Strong expertise in Java 11+ with experience supporting legacy systems Proven experience with Oracle WebLogic 11gR1 or similar Experience developing and supporting PL/SQL Hands-on experience with ElasticSearch development and support Nice ...

REST, GraphQL, gRPC, WebSocket) and relational/non-relational database design (PostgreSQL, SQLite). 3. Systems & Mobile Architecture (Android ART) Proficiency in Kotlin or Java on native Android environments, including background services, thread management, and Inter-Process Communication (IPC via AIDL/Binders). Understanding of event-driven architectures, local ...

within Agile delivery teams What We’re Looking For Full stack experience within an agile team building enterprise‐grade web applications or backend services Java development with Spring Boot Front‐end development using modern JavaScript frameworks (e.g., React, Vue) Experience with cloud platforms such as AWS or Azure Containerisation ...

need to be the successful DV Cleared Software Engineer: Experience as a Software Engineer in one of: Backend development and it's ecosystem (Java Spring boot, Maven, Python) Frontend development and it's ecosystem (JS/TS, React, Npm) Familiarity with CICD, containerisation, deployment technologies & cloud platforms (Jenkins, Kubernetes, Docker ...

production. Strong platform and product support. The ability to make real changes with real business value. Technical Stack & Requirements Object‐oriented programming in Java (version 11+), ideally using the Spring Boot framework. Highly scalable, highly available cloud‐native applications on AWS, written to 12‐factor principles. Cloud‐related tools ...

software security principles and best practices Desirable The following key skills are desirable, non-exhaustively: Experience with a non-system language, including Python, Java or similar Knowledge of database systems and proficiency in database query languages/tools Familiarity with Continuous Integration/Continuous Deployment (CI/CD) pipelines, containerization ...

business stakeholders. Experience leading modernization, platform transformation, organizational change, or cloud adoption initiatives. Experience mentoring and developing engineering talent. General Requirements: Technical Skills Advanced Java development expertise. Advanced React and TypeScript expertise. Deep expertise with relational and non-relational database technologies. Deep understanding of distributed systems, microservices, and event-driven ...

across multiple teams Open-source contributions or technical writing that raised the bar for others Spanish proficiency Tech Stack Languages — Go and Kotlin (core), Java APIs — gRPC, REST Frameworks — Spring Boot, Spring WebFlux; Go standard library Messaging — Apache Kafka, SQS Databases — PostgreSQL, Redis Infrastructure — AWS, Kubernetes, Docker, Terraform Observability — Datadog ...

development fashion YOU HAVE : Strong understanding of QA methodologies, shift-left practices, and the full software development lifecycle (TDD, BDD, Scrum, Kanban) Proficient in Java, with a focus on automated testing, root cause analysis, and debugging Comfortable implementing tests across the full test stack: unit, component, integration, system ...

core computer science principles, including data structures, algorithms, software design, and complexity analysis. Demonstrable programming ability in at least one modern language (e.g., Python, Java, Go, etc).Strong analytical and problem-solving skills, with the ability to approach complex challenges in a structured manner. Excellent communication and interpersonal skills, with ...

conferences. Skills and experience that you need Essential Experience Mastery of multiple modern programming languages and extensive engineering experience across diverse technology stacks (Python, Java, Node, etc.) Expert track record of leading multiple delivery teams to deliver enterprise-scale, high-quality, and technology-agnostic solutions. Strategic mastery in coaching ...

Junior Java Engineer TradingTo 75,000Quant Capital is urgently looking for a Java Developer to join our high profile client. They have recently raised (PE and Bank) 50 million and are set for another 100 million raise in February. They are acquiring users at 50,000 per month … Review of designs/code and knowledge sharing are key to smooth organizational continuity. Two brains are better than one. Day to Day The Java Developer will: Design, develop, test and deploy micro services into the cloud (AWS) Supporting other business units investigating problems, querying data, and building tools ...

implementing scalable secure cloud-based solutionsCloud Solution Architect certification (Azure/AWS/GCP), Linux (Preferably) and/or Windows sysadmin certificationProgramming experience (Java, Go, Python, Bash, PowerShell, etc.)Proven Experience of microservices and container-based systems (Docker, Kubernetes, Mesos)Experience with Atlassian Jira/Confluence or similarExperience with Oracle ...

Professional Expertise Experience developing backend software in a production or professional environment Good programming skills in at least one major programming language, such as Java, Go, C/C++, Python, or similar Understanding of software engineering fundamentals, including testing, code reviews, debugging and documentation Familiarity with REST APIs, microservices ...