1 to 25 of 652 Permanent Java Jobs in London

## 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 ...

event‐driven integration of AI into enterprise workflows Data platforms: Databricks, Spark, Snowflake; streaming via Kafka Backend & Distributed Systems Languages: Python (expert), Java/Spring Boot (enterprise standard), Go (plus) Architecture: Microservices, domain‐driven design, event‐driven systems APIs & Integration: REST/gRPC; Apigee, Kong Data & Messaging: PostgreSQL/Oracle ...

event‐driven integration of AI into enterprise workflows Data platforms: Databricks, Spark, Snowflake; streaming via Kafka Backend & Distributed Systems Languages: Python (expert), Java/Spring Boot (enterprise standard), Go (plus) Architecture: Microservices, domain‐driven design, event‐driven systems APIs & Integration: REST/gRPC; Apigee, Kong Data & Messaging: PostgreSQL/Oracle ...

SDLC to rapidly comprehend large codebases, generate production‐quality code, and accelerate delivery. Required Qualifications 8+ years of professional software development experience in Java (Java 17+ preferred), with strong command of concurrency, collections, and modern language features. Demonstrated experience with AI assisted engineering tools (e.g., Claude Code, GitHub Copilot Agent ...

delivery planning. What We’re Looking For Experience as a Software Engineer with strong capability in one or more of the following: Backend development (Java Spring Boot, Maven, Python) Frontend development (JavaScript/TypeScript, React, npm) Proven experience designing, developing, and deploying scalable backend systems. Familiarity with DevOps, CI/ ...

Title: Java Engineer Client: Fintech Salary: Up to £115,000 + Benefits Location: London About the Company Our client is an exciting and rapidly scaling fintech technology company building next-generation data infrastructure for modern financial markets. They are developing a high-performance data distribution platform designed to move, process … that operate at significant scale while contributing directly to the architecture and evolution of the platform. The Role They are looking for a talented Java Engineer to join their engineering team and help build the next generation of high-performance data distribution infrastructure. You will be responsible for designing ...

Senior Java Developer - Digital & Public Services A growing digital consultancy delivering complex, high-impact services into the public sector is looking for a Senior Java Developer to join its engineering capability. This is an opportunity to work on meaningful projects, contributing to the development of scalable, secure software solutions while … nature of the work, candidates must either hold current SC Clearance or be eligible to obtain SC Clearance . The Role As a Senior Java Developer, you will play a key role in the design, development, and deployment of modern digital services. You will work on complex systems, contribute ...

practice. Present solutions and technical progress to stakeholders. Experience you'll need as a Senior Full Stack Kotlin Developer Strong commercial experience with Kotlin, Java and the full software development lifecycle. Experience with Spring Boot, Spring Framework and microservices architecture. Exposure to Node.js, TypeScript, Express.js or Nunjucks. Experience with ...

Systems, Backend Development, API Development, Microservices, Cloud Infrastructure, Infrastructure Engineering, Platform Engineering, Algorithms, Data Structures, Object Oriented Programming, Functional Programming, Python, C++, Rust, Go, Java, TypeScript, JavaScript, Database Design, SQL, NoSQL, PostgreSQL, System Architecture, Technical Leadership, Engineering Strategy, Software Reliability, Performance Optimisation, Automation, DevOps, CI/CD, AWS, Azure, Google ...

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 ...

step workflows; instrument agents for tracing, metrics, and feedback loops to continuously improve reliability and utility Required qualifications, capabilities and skills Demonstrate proficiency in Java and/or Python programming languages Deployed production systems to GenAI platforms such as Google VertexAI, OpenAI, AWS Bedrock, or LangChain Utilized cloud technologies ...

dynamic and collaborative environment with various stakeholders and team members. Strong skills in programming languages and frameworks commonly used in SaaS development. In particular, Java/Kotlin, Python, C#. Strong skills in designing and developing APIs, basic understanding of HTTP/HTTPS protocols, and proficiency in API documentation. Familiarity with ...

step workflows; instrument agents for tracing, metrics, and feedback loops to continuously improve reliability and utility. Required qualifications, capabilities and skills: Demonstrate proficiency in Java and/or Python programming languages Deployed production systems to GenAI platforms such as Google VertexAI, OpenAI, AWS Bedrock, or LangChain Utilized cloud technologies ...

operational systems Bachelor's or Master's degree in Computer Science, Engineering, Telecommunications, or related technical field Background in hands-on development with Python, Java, or similar languages (nice to have but not required for day-to-day work) Knowledge of AI ethics, responsible AI practices, and regulatory requirements relevant ...

Role Overview Were looking for an experienced Java Camunda Engineer to join our implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration, helping our clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts, and designers to translate … through clean code, automation, and modern engineering practices. Key Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service ...

Professional knowledge and experience Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Significant hands on experience with Java, Spring Boot and Microservices. Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming … languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code. Familiarity with CI/CD pipelines, automated testing, and modern software development practices. Knowledge of technologies such as microservices, containerisation (Docker, Kubernetes), or serverless architecture. Awareness ...

Java Full Stack Engineer - Senior Consultant Salary: £60,000 - £70,000 plus benefits, perks, and healthcare options! Job type: Permanent | Hybrid (1-2 days per week) | Occasional travel to client sites Security Clearance: Must be SC eligible Base locations: London, Manchester or Glasgow Overview We're looking for a Java … help build scalable, secure and high-performing solutions using modern technologies and engineering practices. Your Role Design, develop and maintain scalable microservices using Java and Spring Boot. Build responsive web applications using React, JavaScript/TypeScript, HTML and CSS. Develop and integrate REST APIs and cloud-native applications. Work across ...

successful in this role, you will need a blend of the following engineering and data science capabilities: Core Development: Proficiency in Python, JavaScript, and Java, alongside modern frameworks (React, Redux, Vue, or Angular). Data Science & ML: Solid understanding of common ML techniques, trade-offs, and scalable ML architecture (MapReduce ...

excellence activities. Troubleshoot production and non-production issues, identify root causes, and drive continuous improvement initiatives. Required Skills & Experience Strong hands-on experience in Java development, Spring Boot, and microservices architecture. Experience designing, developing, testing, and supporting REST APIs for enterprise-scale platforms. Hands-on experience with AWS cloud services ...

engineering culture, real influence, and meaningful problems to solve. What We’re Looking For Core Experience Strong foundation in JVM-based development (Kotlin preferred, Java welcome) Experience designing and implementing data-driven APIs Background working on large-scale web services Solid SQL experience, including schema design and performance-aware queries ...

DevSec & Responsible AI: Privacy‐by‐design, PII handling, secrets management, policy enforcement, human‐in‐the‐loop approvals, auditability. Languages: Advanced Python plus one of Java/TypeScript/Go; containerization (Docker/K8s). Leadership & Communication Executive presence: influence C‐suite decisions with crisp, data‐backed narratives. Lead distributed teams ...

practical experience in system design, application development, testing, and operational stability Proficient in at least one major programming language: Go, Python and/or Java Experience with Kubernetes and Terraform Experience in developing automated tests as an integral part of the development cycle. Overall knowledge of the Software Development Life ...

organisation Ability to work independently on ambiguous and technically complex problems. Preferred technical and professional experience Apache Kafka or other distributed messaging technologies. Java development. Public cloud platforms (AWS, Azure or Google Cloud). Kubernetes, Docker or containerised environments. Linux system administration. Networking fundamentals (DNS, TLS, load balancing, firewalls). ...

Skills & Experience: Eligibility for SC clearance Significant experience in Agile environments (e.g., SCRUM, Kanban). Solid technical development background with strong coding skills in Java, C#, TypeScript, JavaScript, or similar Proven expertise in automation testing, with hands-on experience using tools like Playwright, Selenium, Cypress, or RestAssured Strong knowledge ...