151 to 175 of 192 Java Jobs in London

Integration design patterns Cloud integration architectures Security and governance frameworks Experience with: SOAP REST OData SFTP IDoc JMS Strong knowledge of: Message Mapping XSLT Java Mapping Proven experience leading large-scale integration transformation programmes. Excellent communication, stakeholder management, and leadership skills. If you are interested or would like to know ...

Head of Engineering - Java, Javascript, Cloud, Healthcare Up to £850 per day (Inside IR35) London/Hybrid (3 days onsite) 6 months My client is a high-profile organisation seeking a Head of Engineering to lead a team of Software Engineering Managers, driving the development and transformation of technology products. … This role requires deep technical expertise (Java, Javascript, Azure/GCP) and a proven ability to build high-performing engineering functions in fast-paced, complex environments. You will play a key role in a wider transformation programme, introducing modern engineering practices, improving architecture, and delivering scalable, consumer-facing digital products. ...

Graduate Java Developer Location: Central London Salary: Circa £35,000 - £45,000 + Bonus + Benefits Graduate Java Developer required by a highly technical Algorithmic Trading Company based in Central London This is an excellent opportunity to join a small, engineering-led team building trading systems, market data infrastructure … play a hands-on role in the development of trading technology Experience: Degree in Computer Science, Engineering, Mathematics, Physics or similar quantitative discipline Strong Java fundamentals Exposure to Python Understanding of data structures, algorithms, networking fundamentals, OOP and software design patterns Familiarity with Linux/Unix environments Git or similar ...

Graduate Java Developer Location: Central London Salary: Circa £35,000 - £45,000 + Bonus + Benefits Graduate Java Developer required by a highly technical Algorithmic Trading Company based in Central London This is an excellent opportunity to join a small, engineering-led team building trading systems, market data infrastructure … play a hands-on role in the development of trading technology Experience: Degree in Computer Science, Engineering, Mathematics, Physics or similar quantitative discipline Strong Java fundamentals Exposure to Python Understanding of data structures, algorithms, networking fundamentals, OOP and software design patterns Familiarity with Linux/Unix environments Git or similar ...

annum ***CANDIDATES MUST BE UK NATIONALS AND ELIGIBLE FOR SC CLEARANCE*** Role Overview We are seeking an experienced Application Developer with strong expertise in Java and Web Technologies to design, develop, and support enterprise-grade applications. The role involves working across the full software development lifecycle, building scalable solutions using … Java/JEE stack, and contributing to modern, secure, and high-performing systems. You will play a key role in developing clean, reusable code, supporting live services, and mentoring junior team members while following modern engineering standards and DevOps practices. Key Responsibilities Application Development & Engineering Design, develop, and maintain applications ...

Solution Architect (Java, Spring Boot, Microservices) Location: Wembley, On-site Salary: Up to £85,000 + benefits 1 stage interview (ASAP) We're looking for an experienced Solution Architect to join a high-performing technology team delivering complex, enterprise-scale platforms. This role is ideal for someone who thrives … Experience: 5+ years in Solution Architecture Strong background in e-commerce platforms or API/middleware environments Technical Expertise: Strong knowledge of Node.js, Java (Spring Boot), and PostgreSQL Ability to review and critique code as well as architectural designs Integration & Architecture: Strong experience with API-led architecture, webhooks, and event ...

Were seeking a future team member for the role of Java Full Stack Engineer with AI-driven development exposure to join our Conventional Trust Platform team. This role is located in London . In this role, youll make an impact in the following ways: Define and execute the enterprise Java … platforms. Establish best practices for secure, scalable, and resilient application design. Oversee end-to-end delivery of complex platforms across backend (Java) and frontend technologies. Ensure high-quality engineering outcomes using CI/CD, automation, and DevSecOps practices. Lead large-scale programs focused on velocity, reliability, and cost efficiency. Drive ...

production support across multi country store environments. The role suits a hands on specialist with deep Xstore expertise who can move comfortably between configuration, Java development, integration and live operational support, working with both internal teams and third party vendors. Key responsibilities Implement, configure and customise Oracle Xstore POS across … store rollouts, POS deployments, environment setup and go live validation. Lead and deliver Xstore version upgrades, including codebase migration and file merge across Java classes, XML configuration and custom components. Develop and maintain integrations across OMS, payments, order shipping, customer queue and inventory systems. Manage critical production incidents, severity ...

about building safe, transparent, and reliable AI s ystem.Strong engineering foundations, with experience building scalable distributed systems or data plat forms.Proficiency in Python, SQL, Java, and modern data processing frame works.Experience working with cloud-based AI/ML ecosystems, particularly AWS SageMaker (requ ired).Understanding of monitoring frameworks, observability pipelines … performance monitoring, and lifecycle controls. Develop integrations with model registries, feature stores, lineage tools, and governance systems.Write clean, well‐tested, scalable code in Python, Java, SQL, and modern data/stream processing fr ameworks.Engineer a Robust, Resilient, and Secure AI Env ironment.Build high‐throughput pipelines to capture metrics:-o Model ...

currently working with a London-based Financial Services client who are actively seeking a Principal Java Developer with extensive experience in the Risk and Market Data space. What you'll need to succeed : Strong server-side Java Development experience in a lead role working on Risk and Market Data platforms ...

Java Data Engineer 6-Month Contract (Possible Extension) Inside IR35 Hybrid London (3 days) I have been engaged my client to bring in a Java Data engineer to work on a Big Data Project in the finance sector. Required Experience: Java Big Data experience On-premises cluster experience Databases Kubernetes ...

Java Engineer Salary to £ 50 k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you have resided in the UK for the past 5 years and are prepared to go through UK SC Security Clearance This company ...

Java Engineer Salary to £50k + Company Options Scheme Fully remote working available for the right candidate (hybrid working between your home, their offices (London Vauxhall) & client sites would be preferred but isnt essential). NB: Please only apply if you have resided in the UK for the past ...

Java Engineer Salary to £50k + Company Options Scheme Fully remote working available for the right candidate (hybrid working between your home, their offices (London Vauxhall) & client sites would be preferred but isnt essential). NB: Please only apply if you have resided in the UK for the past ...

staff. Role Assist in the design, development, and testing of software applications and internal tools Write clean, well-documented code across languages including Python, Java/C#, HTML, CSS, and JavaScript Support the Data Ops team in managing version control, code reviews, and collaborative development using Git and GitHub Contribute … software development projects. QA’s Junior Developer Level 3 apprenticeship programme enables the apprentice to: Explore a wide range of skills including Python, C#, Java, SQL, HTML, CSS, JavaScript, Git, Microservices and cloud Interpret simple design requirements for discrete components of a project under supervision Implement code which other team ...

Insurance, Regular social events What You ll Work On The environment is primarily Node.js and Go but strong engineers from .NET/C# or Java backgrounds are encouraged to apply. Integrating with payment platforms, banking infrastructure, FX/crypto providers, and card processors Designing and optimising SQL and NoSQL data … testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows and AI-assisted development Experience designing APIs ...

Insurance, Regular social events What You’ll Work On The environment is primarily Node.js and Go but strong engineers from .NET/C# or Java backgrounds are encouraged to apply. Integrating with payment platforms, banking infrastructure, FX/crypto providers, and card processors Designing and optimising SQL and NoSQL data … testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows and AI-assisted development Experience designing APIs ...

Insurance, Regular social events What You ll Work On The environment is primarily Node.js and Go but strong engineers from .NET/C# or Java backgrounds are encouraged to apply. Integrating with payment platforms, banking infrastructure, FX/crypto providers, and card processors Driving architectural decisions across distributed systems … testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows and AI-assisted development Experience designing APIs ...

Insurance, Regular social events What You’ll Work On The environment is primarily Node.js and Go but strong engineers from .NET/C# or Java backgrounds are encouraged to apply. Integrating with payment platforms, banking infrastructure, FX/crypto providers, and card processors Driving architectural decisions across distributed systems … testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows and AI-assisted development Experience designing APIs ...

Java Data Engineer 6-Month Contract (Possible Extension) Inside IR35 Hybrid London (3 days) I have been engaged my client to bring in a Java Data engineer to work on a Big Data Project in the finance sector. Required Experience: Java Big Data experience On-premises cluster experience Databases Kubernetes ...

Principle Java Engineer Salary to £70k-£90k + company options scheme ( for £90k you will have to be their Unicorn candidate i.e. having hands on experience of working with Camunda + having SC clearance already in place + being eDV eligible. They will consider remote workers, if you are prepared ...

other related field, or experience in consulting, design and implementation of serverless distributed solutions - Experience with one or more object-oriented programming languages (e.g., Java, C/C++, Python) - Experience integrating AWS cloud services with on-premise technologies (e.g., Microsoft, IBM, Oracle, HP, SAP) - Experience in automation or monitoring frameworks … with one or more of the following domains: systems administration (Linux/Window), network administration (DNS, IPsec, BGP, VPN, Load Balancing), or programming (Node.JS, Java, Ruby, C#, Python, or PHP) - degree in advanced technology, or experience in external or internal customer facing, complex and large scale project management PREFERRED QUALIFICATIONS ...

design documentation and oversee quality of other technical consultants' outputs. Skills Endur Development: Considerable experience in developing and customizing JVS and/or OpenComponents (Java or .NET C#) to extend Endur functionality. Connex Integration: Expertise in integrating Endur with external systems and data sources using Connex, ensuring seamless data exchange … Database Management: Strong understanding of Oracle and MS SQL Server databases, including database design, administration, optimisation, and performance tuning. .NET C# and/or Java Development: Proficiency in .NET C# and Java development for building custom applications, modules, and integrations within the Endur ecosystem. Endur Gateways and Accelerators: Demonstrate ...

Description: As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integration. Key Responsibilities: Develop and maintain … backend systems using Java 17/21 and the Spring MVC framework. Manage and execute Java EE library migrations and middleware upgrades. Ensure efficient database management and operations with Oracle 19C. Implement and maintain SOAP/REST integrations to support system interoperability. Collaborate with cross-functional teams to deliver high ...

expertise to support critical financial applications within Mastercard. The ideal candidate will have hands-on experience in CI/CD, automation, observability, and supporting Java-based applications in complex production environments. Key Responsibilities: Provide production and application run support for business-critical systems. Design, implement, and maintain … Splunk and Dynatrace. Improve alerting quality, dashboards, and proactive anomaly detection capabilities. Troubleshoot and resolve issues across Unix environments, middleware, databases, and applications. Support Java-based applications running in virtualized environments and collaborate with development teams to drive reliability improvements. Participate in incident management, root cause analysis, and continuous service ...