15 of 15 Contract Java Jobs in Central London

Senior Java Architect - Payments Location: London (Hybrid) Contract: 6 Months Initial Pay Rate: £550-£600 - Outside IR35 About the Role We're supporting a global financial services organisation undergoing a significant banking transformation programme. As part of this journey, they are building next-generation banking capabilities and modernising core platforms … that support cross-border payments, settlement, reconciliation, and banking operations. We are seeking an experienced Java Engineering Architect to provide technical leadership across backend engineering, architecture, and delivery. This role will play a key part in shaping modern banking platforms built on cloud-native technologies, microservices, event-driven architecture ...

team. Improving the performance, resilience and maintainability of existing platforms. Key Skills 5+ years of commercial software engineering experience. Strong backend development experience in Java + Spring environments. Experience working with Python and/or the Microsoft technology ecosystem. Strong understanding of distributed systems and scalable application design. Experience designing ...

work independently, communicate complex technical ideas clearly, collaborate effectively with stakeholders and champion better ways of working. Nice to Have Experience with Docker, Java/Scala, Kafka, Pulsar, Azure Event Hub, Collibra, Apache Iceberg, Apache Arrow, PySpark or AI engineering technologies such as Snowflake AI, LangChain, LlamaIndex or Pinecone would ...

Java EngineerJava Engineer | esynergy | London Hybrid Do you enjoy building scalable, customer-facing applications using Java, microservices and modern cloud technologies? Role overview We are looking for an experienced Java Engineer to join one of our strategic programmes, where esynergy is delivering a major piece of work for a FinTech … client. You'll be working predominantly across backend systems, helping to buildand evolve large-scale, customer-facing applications using Java, Spring Boot and microservices. For some positions within the programme, we are also looking for full-stack engineers with React.js experience. Backend engineering remains the primary focus. Essential Skills/ ...

existing supplier. The deal covers the Borders & Trade element of the ITT, providing environment management, I&T development and maintenance, and Java feature development and testing capabilities. The team will work alongside the existing CDS programme to deliver nationally critical infrastructure. What you'll bring: UK Citizen with 5 years ...

Integration Architect/Senior Integration Architect - JAVA/AWS (ESSENTIAL) £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this they are implementing a whole … across teams Design and deliver event-driven, API-first, and messaging solutions (NATS, REST) Lead end-to-end integration delivery, including hands-on development (Java/Spring) Ensure scalable, cloud-native solutions on AWS Produce architecture artefacts (blueprints, contracts, ADRs) Guide teams on best practices, API governance, and event design ...

seeking a seasoned, high-caliber Senior e-Trading Java Developer to join the UI & Electronic Trading team. You will contribute directly to a strategic multi-year greenfield build-out and modernization of our core Rates electronic trading platform. The position offers a dynamic working environment embedded closely with global trading ...

will bridge the gap between traditional telecommunication protocols and modern cloud-based AI. Your core focus will be developing stable SIP services using Java, managing open-source media engines, and integrating advanced Speech AI technologies across multi-cloud environments. Key Responsibilities SIP Development: Develop, test, and maintain mid-to-high … Team Collaboration: Work alongside senior architects and DevOps teams to roll out scalable conversational AI bots. Required Skills & Qualifications Core Language: Professional experience with Java, including multi-threading and network programming. In depth knowledge of Java Good knowledge of java applications using JAIN SLEE framework, SIP Servlet Frameworks Telephony Engines ...

Solution Architect/Senior Solution Architect/Technical Solution Architect - Java/Kafka - Hands on £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this … implementing a whole host of new platforms and technologies. For this role, we're looking for a hands on/technical Solution Architect with Java and Kafka to drive forward the end-to-end architecture for s RTL & Payments Transformation, ensuring cohesive design across Payments, Reconciliation, KYC, Cash Management, Monitoring ...

Senior Java Architect - Payments Location: London (Hybrid) Contract: 6 Months Initial Pay Rate: £550-£600 - Outside IR35 About the Role We're supporting a global financial services organisation undergoing a significant banking transformation programme. As part of this journey, they are building next-generation banking capabilities and modernising core platforms ...

seeking a seasoned, high-caliber Senior e-Trading Java Developer to join the UI & Electronic Trading team. You will contribute directly to a strategic multi-year greenfield build-out and modernization of our core Rates electronic trading platform. The position offers a dynamic working environment embedded closely with global trading … desks. The ideal candidate brings extensive buy-side or top-tier investment banking experience in Rates e-trading, deep low-latency Java expertise, and strong business-facing capabilities to elicit requirements directly from traders. Key Responsibilities & Accountabilities Core Platform Build: Design, develop, and optimize greenfield components of the Rates electronic ...

Integration Architect/Senior Integration Architect - JAVA/AWS (ESSENTIAL) £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this they are implementing a whole ...

Solution Architect/Senior Solution Architect/Technical Solution Architect - Java/Kafka - Hands on £600 Pay - Outside IR35 - 4 Days per week on site in London Bridge 6 month initial contract We've partnered with a genuinely exciting organisation who are building a greenfield Bank, as part of this ...

Java EngineerJava Engineer esynergy London Hybrid Do you enjoy building scalable, customer-facing applications using Java, microservices and modern cloud technologies? Role overview We are looking for an experienced Java Engineer to join one of our strategic programmes, where esynergy is delivering a major piece of work for a FinTech ...

Engineer to join their fast-paced team on an initial 6 month contract. Job description Manage and execute operating system, middleware, application server, and Java platform patching, upgrades, and lifecycle maintenance across UNIX/Linux environments. Perform security hardening, vulnerability remediation, configuration management, cluster patching, rolling upgrades, rollback planning, disaster … change management standards. Skills requireed for the role UNIX/Linux (RHEL, Solaris, AIX) Red Hat Satellite Ansible Oracle WebLogic OPatch JBoss EAP Java (JDK/JRE) JVM Tuning Security & Vulnerability Management Change Management Disaster Recovery Smoke Testing Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited ...