14 of 14 Contract Java Jobs in Central London

Senior Java Architect - Payments

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
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 ...

Full Stack Developer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£1000/day
looking for a Full Stack Developer to join their team. The role will be working development and implementation of applications used across trading. Requirements Java, Springboot, Microservices UI - Angular, Typescript, JavaScript - (open to react also) Kafka, MQ, FIX Protocol Investment Banking or Investment Management experience. AI Driven Development tools, Claude ...

Senior Java Developer

Hiring Organisation
Michael Page
Location
London, Soho, United Kingdom
Employment Type
Contract
Contract Rate
£60000 - £75000/annum
client is in the Insurance sector and is looking to grow their team with a Java Senior Developer. This role will have a big focus on Agentic Development and is 2 days a week in London. Client Details Our client is in the Insurance sector and is looking to grow … their team with a Java Senior Developer. This role will have a big focus on Agentic Development and is 2 days a week in London. Description This role is primarily Java-centric - you will design and build cloud microservices on the platform - with the expectation that you actively apply ...

AI Native Systems Engineer

Hiring Organisation
Syntax Consultancy Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
500/day (Outside IR35)
+ deployment. Strong background in Software Architecture, systems engineering, distributed systems or complex cloud-native platform delivery. Programming languages: Go, Rust, C/C++, Java, Python. Desirables: AWS Solutions Architect Associate certification, Telecoms, AIOps, Network Ops, RAN/Core Analytics, Data Engineering, anomaly detection, RCA, lakehouse/agent orchestration patterns. ...

Senior Systems Engineer | Financial Service

Hiring Organisation
Twenty Recruitment Group
Location
City of London, London, United Kingdom
Employment Type
Contract
scale. Background in globally distributed, real-time systems or large-scale data infrastructure. Strong experience with Go, Rust or C++. Proficiency in Python, Java or TypeScript. Experience handling large data volumes and building scalable processing pipelines. Strong understanding of system performance, latency measurement and optimisation. Ideal Background: Experience in areas ...

Infrastructure specialist

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £510 per day
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 - Java, AWS, FS - OutsideIR35

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day + Outside IR35
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 ...

SITS StuTalk Developer

Hiring Organisation
Lorien
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 575 Daily
maintain complex integration processes using StuTalk. Experience integrating SITS with multiple third-party applications and services. Strong PL/SQL development experience. Experience with Java or another programming language. Experience developing and supporting multiple data integrations. Knowledge of APIs, web services, Middleware or ETL processes. Experience working with relational databases ...

Software Engineering Specialist

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £400/day
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 - Hands on - Java / Kafka - Outside IR35

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day + Outside IR35
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

Hiring Organisation
Sanderson Recruitment
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 600 Daily
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 ...

Integration Architect - Java, AWS, FS - OutsideIR35

Hiring Organisation
Sanderson Recruitment
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 - 600 Daily
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 ...

Principal Risk Datastore Engineer | Financial Service

Hiring Organisation
Twenty Recruitment Group
Location
City of London, London, United Kingdom
Employment Type
Contract
engineering role focused on market and historical time-series data supporting risk calculations, simulations and analytics. We are looking for someone with strong Java and data platform experience who can build highly reliable, scalable and auditable systems within a regulated environment. The ideal candidate will be technically strong, proactive … review designs and drive technical decisions. Key Skills: Strong experience building data-intensive, batch-processing platforms, ideally using market or time-series data. Advanced Java 11+ development, with Java 17+ preferred. Strong Spring/Spring Boot experience. Experience with durable data stores and data publishing to platforms Strong understanding ...

Hosting Platform Engineer (Unix/Linux)

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£475 - £550/day Inside IR35
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 ...