126 to 150 of 309 Java Jobs in London

squad Proven experience working in both backend services and mobile technologies Exceptional programming skills and knowledge of building APIs using modern OO languages preferably Java, SOLID principles, SOA, HTTP and REST Experience with AWS and strong understanding of cloud-based development Extensive, demonstrable knowledge of designing architectures that are secure ...

months with extension likely London - 2-3 days per week on site Active SC Clearance essential We're looking for a full-stack Java developer to join an established engineering team working on cloud-hosted applications in Azure. The role has a strong backend focus but also includes frontend development … working across Java services and modern web applications. You'll use VS Code or equivalent IDEs and work closely with frontend, backend and DevOps teams. About the role Full-stack development role Backend and frontend responsibilities Cloud-hosted systems on Azure API-driven, service-based architecture Modern engineering practices ...

In this developer role, you will: Provides senior-level system analysis, design, development, and implementation of applications and databases, including third-party product integration. Translates technical specifications into code for complex projects, writes programs, develops ...

esponsibilities Engineering Standards & Code Quality Define and enforce Java and Node.js engineering standards across the team, with a strong emphasis on robust exception handling, binary stream processing, structured logging using Application Insights, and security‐first development practices. Cloud‐Native Application Readiness Ensure applications are designed for containerisation from inception, including … contract testing, to prevent regression and ensure all deployments are demonstrably stable and production‐ready. The Ideal Candidate Experience 10+ years of professional Java development experience, with substantial hands‐on ownership of Spring Boot–based microservices in production environments. Azure Platform Integration Proven experience building applications that integrate with Azure ...

Senior Java Developer Senior Java Developers with a passion for cutting-edge technology and a desire to work on a flagship platform rebuild, look no further for your next role! We have an exceptional opportunity with a leading financial services technology vendor based in the heart of London. … Senior Java Developer within this team, you will play a crucial role in the next phase of their growth, working on autonomous software at the core of their processes. You will have the opportunity to bring the most cutting-edge technology to their global client pool, with a focus ...

secure Driving engineering best practices across testing, automation, and performance Working closely with product and engineering stakeholders to deliver robust solutions Technology Environment Java and Spring Boot (low-latency) Distributed systems and microservices architecture AI Skills mandatory Angular or TypeScript (full-stack capability beneficial) Cloud and containerisation technologies CI/… automated testing, and observability tooling Requirements Strong experience in Java and backend development Experience building and scaling distributed systems in production environments Solid understanding of software architecture and system design Experience working in financial services or other regulated environments Exposure to the full software development lifecycle Familiarity with modern development ...

across modern AWS infrastructure, React front ends, and advanced LLM/RAG workflows.What you'll be doing Building and enhancing cloud-native applications using Java and/or Python Developing modern React front-end solutions Designing scalable systems on AWS Delivering AI-powered features using LLMs, semantic search … engineering and product stakeholders on a flagship transformation programme What we're looking for 8+ years' software engineering experience Strong hands-on experience with Java and/or Python Proven expertise with AWS cloud technologies Full stack engineering capability, ideally including React Experience building secure, production-grade distributed systems Strong ...

leadership, architecture, and hands-on coding capability, with close engagement in client-facing and pre-sales activity. What good looks like: Strong engineering foundation (Java, .NET, or similar modern stack) Comfortable being hands-on in code when needed (e.g. CI/CD, Terraform, Kubernetes) Proven experience leading teams and mentoring ...

HCLTech’ s Candidate Data Privacy Notice. DevOps JD- Proven Experience leading the SRE teams Proven experience with managing complex devops projects Experience with Java platform engineering Low Latency trading Good understanding of following is beneficial Kubernetes/Helm Jenkins/TeamCity ArgoCD/GCP Anthos Ansible TeamCity Key Skill ...

HCLTech’ s Candidate Data Privacy Notice. Dev Ops Proven Experience leading the SRE teams Proven experience with managing complex devops projects Experience with Java platform engineering Good understanding of following is beneficial Kubernetes/Helm Jenkins/TeamCity ArgoCD/GCP Anthos Ansible Key Skill Set GKE Deployment Openshift Anthos ...

Linux Kernel instrumentation or performance engineering Low-latency or high-performance distributed systems Strong systems programming background (C++, Go or Rust preferred) Python/Java for higher-level services Kubernetes/cloud-native infrastructure Observability concepts (metrics, logs, traces, SLI/SLOs) Contract details Hybrid working (London) Inside IR35 Long ...

scale trading environments and modern technologies.Essential skills - Fidessa Application Support Analyst: Strong experience with Fidessa Equities/Global Markets knowledge Understanding of FIX Protocol Java & Linux experience Scripting (Python, Shell, or TCL) Experience with SQL databases (Sybase/MS SQL) Messaging frameworks (IBM MQ, TIBCO or similar) Desirable skills - Fidessa ...

latest Android trends, tools, and technologies Required Skills & Experience 5+ years of experience in Android development Strong proficiency in Kotlin (and solid knowledge of Java) Experience with modern Android architecture patterns ( MVVM, Clean Architecture ) Deep understanding of Android SDK, Jetpack components, and app lifecycle Experience with RESTful APIs and third ...

clean energy for the charging of electric vehicles. In this position, they are looking for experience in: 3+ years commercial experience JVM development - Java, Kotlin or Scala (Bonus) if you have already worked with Kotlin Microservices architecture Public cloud technologies e.g. AWS Have worked in modern, product-focused tech companies ...

front-office, brokerage, exchange, ISV, software vendor or market data business. Experience within Equities or Fixed Income markets. Familiarity with modern tech stacks, including Java, Python or C++. Experience working within an electronic trading environment is essential. Excellent analytical, communication, and stakeholder management skills. 🌍 Why Join? You’ll be part ...

skills and experience are required for this role: Technically minded. Comfortable both as architect and hands-on developer. Strong and experienced C++ developer. Capable Java developer with coding experience in the workplace. Strong hands-on experience with multi-threading, and real-time systems. Using SQL, preferably MS SQL Server. Experience ...

Science, Engineering, or another quantitative/technical discipline Required Skills Strong programming ability in at least one major language such as Python, C++, or Java Excellent attention to detail and a methodical approach to problem solving Strong communication skills and the ability to work effectively with teams across multiple global ...

grounding in algorithms, data structures, and software design Experience building complex systems — not just application-layer UI Exposure to a statically typed language (C++, Java, C#, Rust, etc.) Understanding of performance trade-offs in rendering and interaction Working knowledge of basic linear algebra Why this role stands ...

central to the team’s core systems Python is widely used across quant and data groups Open to candidates from other OO backgrounds (C++, Java, Go) with strong fundamentals Exposure to high‐performance, low‐latency, or business‐critical systems is valuable Financial markets experience is not essential, but interest ...

Strong AWS expertise, including tools such as Glue, Lambda, Kinesis, EMR, Athena, DynamoDB, CloudWatch, SNS and Step Functions. Skilled in modern programming, particularly Python, Java, Scala and PySpark. Solid knowledge of data storage and big data technologies, including data warehouses, databases, Redshift, RDS and Hadoop. Experience building and managing ...

understanding of both traditional and modern data warehousing approaches Hands-on experience with cloud platforms such as AWS, Azure, GCP, or Databricks Proficiency in Java, Scala, or Python A strong track record of mentoring and developing technical teams Desirable Experience Knowledge of data architecture principles such as Master Data Management ...

interfaces. Utilise Workday Studio, Workday Web Services (WWS), EIB, and Cloud Connect (CCW, PECI) for integration tasks. Apply coding skills such as XSLT, XML, Java, SQL, and other integration technologies to build scalable and efficient custom integrations. Ensure accurate and seamless data flow between Workday and other enterprise systems. Identify ...

must Proven track record building Real Time, investment management-focused data solutions, ideally on OMD platforms Strong hands-on experience with Python and AWS; Java beneficial Experience delivering complex integrations and scalable data systems in Front Office trading or market data environments Comfortable operating as a senior technical authority within ...

methodologies End-to-end incident response lifecycle experience Detection engineering and alert development expertise. Strong scripting or programming skills (Python, Bash, C/C++, Java). Solid grounding in cybersecurity fundamentals: network security, cloud security, cryptography, forensics. Understanding of common network protocols and attacker abuse patterns. Awareness of current ...

essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Leadership & Approach Experience working in front‐office or trading‐technology ...