151 to 175 of 190 Java Jobs in London

loyalty platforms E-commerce and booking engines Digital Asset Management systems Work with REST/SOAP APIs, XML, JSON, CSV Build custom extensions using Java Optimize performance for high-volume hospitality data Required Technical Skills Core STIBO Expertise 5+ years hands-on experience with Stibo STEP Strong knowledge of: Data … Business rule scripting Import/Export manager Event processors Experience in: Data quality frameworks Survivorship rules Reference data management Programming and Integration Strong in Java and JavaScript Experience with: REST and SOAP web services SQL XML/JSON processing Middleware exposure (MuleSoft, Boomi, Informatica) preferred Infrastructure Experience with Oracle/ ...

variety of sources, ensuring that different data sets can be effectively combined and analysed. They can also utilise programming languages such as Python, Java or SQL and tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful - R, Apache Spark. Very useful - Python ...

variety of sources, ensuring that different data sets can be effectively combined and analysed. They can also utilise programming languages such as Python, Java or SQL and tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful - R, Apache Spark. Very useful - Python ...

Java Engineer Salary to £ 45 k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency ...

Senior Full-Stack Engineer (Java & Python) We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated, enterprise environment. This role sits at the intersection of data engineering, full-stack development, and business ...

Terraform. Ensure secure deployment for mobile phone apps. Conduct regular code reviews and demonstrate leadership in influencing stakeholders and up-skilling teams. Work on Java, Python, Node.js, and JSON development. Required Expertise: Extensive hands-on experience with GCP, GKE, Helm, Terraform. Proficiency in Java, Python, Node.js, and JSON. Solid understanding ...

Cleared) Southend/Reading (Hybrid) 3 Month Rolling Contract £450/day (Outside IR35) Developer-in-Test needed with active SC Security Clearance and Java coding skills. 3 Month Rolling Contract based in either Southend (Essex) or Reading (Hybrid). Hybrid Working - 3-4 days/week remote … chance to work with a leading global IT and Digital transformation business specialising in Government projects: Developer-in-Test/SDET with strong Java coding + test automation skills. Government/(url removed) projects experience strongly preferred. Test automation tools experience -eg- Selenium, Serenity or Cucumber. Continuous Integration tools ...

models, collaborating closely with researchers. This includes curating code examples, providing precise solutions, and making corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go; evaluating and refining AI-generated code for efficiency, scalability, and reliability; and working with cross-functional teams to enhance enterprise-level … Like? Working on AI model training initiatives by curating code examples, building solutions, and correcting code in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross-functional teams to enhance ...

models, collaborating closely with researchers. This includes curating code examples, providing precise solutions, and making corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go; evaluating and refining AI-generated code for efficiency, scalability, and reliability; and working with cross-functional teams to enhance enterprise-level … Like? Working on AI model training initiatives by curating code examples, building solutions, and correcting code in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go. Evaluate and refine AI-generated code to ensure that it is efficient, scalable, and reliable. Collaborate with cross-functional teams to enhance ...

modern big data architectures Build scalable ETL workflows and data lake solutions using AWS-native services Engineer high-performance data processing solutions using Python, Java, Scala, Spark and SQL Integrate structured and unstructured data from multiple sources using APIs, scripting and cloud-native tooling Design and build robust AWS cloud … cloud expertise, particularly across data and analytics services Hands-on experience building ETL processes and data lake/warehouse architectures Proficiency in Python, Java, Scala, Spark and SQL Experience processing large-scale structured and unstructured datasets Experience extracting and integrating data via APIs and custom scripting Strong analytical thinking ...

Java Low Latency Connectivity Developer London | 4 Days Office, Victoria | Crytpo Exchange Connectivity/FIX A specialist electronic trading firm is seeking a Java Low Latency Connectivity Developer to join a highly technical, performance-driven engineering team. The business operates automated trading strategies across both traditional financial markets and crypto … designing, building and optimising exchange connectivity across multiple venues, with a strong focus on crypto markets. Key responsibilities include: Developing ultra-low latency Java components Managing FIX protocol sessions and order flow Integrating and optimising crypto exchange APIs using REST and WebSocket Handling real-time JSON market data feeds Improving ...

Java Full Stack Engineer - Consultant/Senior Consultant Location: UK (Hybrid Remote with client site travel) Salary: £45,000 - £75,000 + Benefits Security Clearance: SC cleared/eligible Hybrid working UK-wide Help transform public services through modern engineering click apply for full job details ...

involves supporting the technical operations team, investigating production issues, and resolving them using technical expertise and analytical skills. Experience Required: 4–10 years of Java development, design, and testing experience Prior experience in financial services technology Familiarity with Java frameworks (e.g., Spring) is beneficial Skills: Strong focus on delivery … ability to work in a dynamic environment Experience developing server-side Java applications Familiarity with version control systems (GIT, GitLab, GitHub) UNIX/Linux environment experience Knowledge of middleware and messaging systems SQL experience Understanding of order routing and messaging protocols Exposure to automated or algorithmic trading is a plus ...

seeking a skilled Java Developer to join our engineering team and contribute to the design, development, and maintenance of high-quality, scalable software solutions. The ideal candidate has strong experience in core Java, modern frameworks, API development, and cloud-based architectures. You will work closely with product owners, architects ...

technology team focused on building and enhancing risk platforms for a leading trading or investment firm. The ideal candidate will have strong expertise in Java development and deep experience working within quantitative or risk-focused environments, particularly in designing, developing, and optimizing systems that support real-time … scalable, high-performance platforms that process large datasets and support complex pricing and risk analytics across asset classes. Key Responsibilities Design, develop, and maintain Java-based risk platform components that support pricing, market data integration, and risk analytics. Collaborate with quantitative analysts and model developers to integrate risk models into ...

engineering team and help maintain, improve, and modernise a core enterprise system. You will work closely with existing developers to maintain and upgrade a Java-based monolithic application backed by an Oracle PL/SQL database, gaining deep knowledge of the system and the business processes it supports. Alongside maintenance … system modernisation, making it ideal for someone who enjoys understanding complex systems and improving them over time. Key Responsibilities Maintain and enhance a Java monolithic application with an Oracle PL/SQL database Pair with existing developers to learn system architecture, domain logic, and business processes Refactor and improve legacy ...

Principle Java Engineer Salary to £ 7 0k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV ) clearance i.e. you have at least 5 years residency ...

onsite role that will require you to work within our London office (near Liverpool street) 5 days on site per week. WhatYoullDo Expert Level Java Development:You will applyyourin-depthknowledge of the Java programming language(21+)to implement world class trading and pricing systems. Collaborative Development:Design and develop innovative … ever-changing financial landscape. Career Advancement:Opportunities for career growth, including leadership roles, are encouraged and supported by our mentorship programs. WhatWereLooking For Strong Java development experiencewithin financial systems, ideally in pricing or risk-related applications. Not just a coder, but someonewho also focuses on applying best practices, designpatternsand principles ...

Adword: Job title: Backend Java Developer Duration: 4 months contract with a possibility of extension Location: London 2 day a week Hybrid Job description: Looking for a Backend Java developer with 6+ years of experience in building and implementing large-scale systems across various projects and teams Technical Skills: Linux … system experience Java Backend development experience AI experience is a must - we will be working on AI tooling as well HTTP/networking Google Cloud (preferred)/AWS Kubernetes Github (Administration/Operations) Gitlab would be advantageous (if they don't have Github) Git expert Data experience - would be helpful ...

team within the Pricing and Risk area , where youll work on our low latency, high-frequency trading platform . You will use cutting-edge Java programming techniques so experience in this area is essential . As a Senior Developer, youll not only code but also take on key design responsibilities … role that will require you to work within our London office (near Liverpool street) 5 days on site per week . WhatYoullDo Expert Level Java Development: You will apply your in-depth knowledge of the Java programming language (21 + ) to implement world class trading and pricing systems . Collaborative ...

main focus is understanding and documenting existing systems, with the goal of supporting decommissioning activities. The role centres on analysing current solutions built using Java, Node JS, and React, and developing a clear, end to end picture of how data flows across the wider programme. This includes documenting data flows … accurate and trusted. Experience working in cloud environments such as AWS or Azure is expected, with Databricks considered a nice to have. Required Skills: Java background Node JS Json RDS React Data Modelling Python/Spark Cloud experience (AWS/Azure) o AWS Glue o Databricks Testing e.g. PyTest Data ...

commerce and booking engines o Digital Asset Management systems · Work with REST/SOAP APIs, XML, JSON, CSV · Build custom extensions using Java · Optimize performance for high-volume hospitality data Required Technical Skills Core STIBO Expertise · 5+ years hands-on experience with Stibo STEP · Strong knowledge of: o Data modeling …/Export manager o Event processors · Experience in: o Data quality frameworks o Survivorship rules o Reference data management Programming and Integration · Strong in Java and JavaScript · Experience with: o REST and SOAP web services o SQL o XML/JSON processing · Middleware exposure (MuleSoft, Boomi, Informatica) preferred Infrastructure · Experience ...

solutions-focused Senior QA Engineer with strong experience in Selenium, Java, C#, or Python? Do you want to be part of an ambitious, innovative company experiencing rapid growth? This organisation grew headcount by 35% last year and has major plans for 2026/2027. This role is based in WEST … testing Work with deployment teams and resolve CI issues Requirements 8+ years' experience in QA Automation Strong manual and automation skills Experience in Python, Java, or C# UI and API automation knowledge Cross-functional team experience Benefits 25 days holiday 10% bonus Private healthcare Pension Training allowance Enhanced holiday entitlement ...

software problems and implement them for production cloud deployments WHAT YOU'LL BRING: Experience building highly scalable and performant enterprise software Working knowledge of Java and its ecosystem (i.e. threading, concurrency ... etc). A positive attitude and a passion for sharing knowledge - the go-to person on the team … small and large questions Interest in fintech, markets, and trading is a must. knowledge or high interest in our main tools: Java, event-driven architectures (AMQP or similar), gRPC, service meshes, etc. Obsession with finishing projects properly, with good stakeholder management, communications, and documentation. WHO WE ARE: Do Your Best ...

multiple state-of-the-art automated facilities within the UK. You'll be based from home and will be focused on software development and JAVA development for highly automated distribution factories across the UK. The Senior software engineer will be involved in some high level software development projects within automated … warehouse environments. Non Negotiable skills required for the Senior Software Engineer 5 years minimum experience in JAVA development Extensive software development experience Understanding of distribution and automated warehouse environments Strong interpersonal skills to liaise with site teams, colleagues, and management effectively. The Senior Software Engineer will benefit from: Competitive ...