20 of 20 Contract Spring Jobs in London

Specialised Engineer HCL Commerce

Hiring Organisation
Vallum Associates Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £550 per day
environments. Key Responsibilities Design, develop, and maintain HCL Commerce/IBM WebSphere Commerce components and extensions Build and enhance backend services using Java, J2EE, Spring, Spring Boot, and REST APIs Ensure applications meet performance, scalability, availability, and security standards Diagnose and resolve complex issues across application, integration … Skills & Experience Strong hands-on experience with HCL Commerce/IBM WebSphere Commerce architecture Proficiency in Java, J2EE, GraphQL, and RESTful APIs Experience with Spring/Spring Boot backend development Strong knowledge of relational databases, particularly Oracle Experience with tools such as Eclipse, RAD, Git, Splunk, Dynatrace ...

Lead Java Tech Role- 3 month Contract

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£475 - £525 per day
Support compliance – Ensure systems align with standards such as ISO27001 and PCI What we’re looking for Strong backend engineering experience with Java (11+) & Spring Boot Event-driven architecture expertise – Kafka or similar Cloud experience – ideally AWS; Kubernetes knowledge beneficial Deep understanding of microservices, REST APIs & distributed systems Experience ...

Blockchain Smart Contract Developer - London and remote - 6 months+

Hiring Organisation
Octopus Computer Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
platforms (GoQuorum, Hyperledger Besu). Experience with enterprise blockchain frameworks such as R3 Corda and Ripple. Proficiency in Node.js, TypeScript, and/or Java (Spring Boot). Strong knowledge of microservices architecture and asynchronous processing patterns. Experience designing on-chain vs off-chain data models. Familiarity with REST APIs ...

Senior SmartContract developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £530 per day
platforms (GoQuorum, Hyperledger Besu). * Experience with enterprise blockchain frameworks such as R3 Corda and Ripple. * Proficiency in Node.js, TypeScript, and/or Java (Spring Boot). * Strong knowledge of microservices architecture and asynchronous processing patterns. * Experience designing on-chain vs off-chain data models. * Familiarity with REST APIs ...

Java Backend Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract, Work From Home
collaboratively within agile, cross-functional teams Essential Skills and Experience Strong commercial experience with Java (version 17 or above, 21 preferred) Proven experience with Spring Boot Experience building REST APIs and microservices from scratch Strong testing skills using JUnit and Mockito , with exposure to TDD Experience with PostgreSQL … automated testing as part of delivery Practical use of Docker and CI/CD pipelines Up-to-date knowledge of modern Java and the Spring ecosystem Mandatory Requirements Recent hands-on backend Java development experience Experience building Spring Boot services from scratch Use of Java 17/ ...

Senior Java Engineer - Payments (ICON IPF)

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract, Work From Home
seasoned background in modern Java development and a 'cloud-first' mindset: Java Mastery: 5-10 years of experience, with expert-level Java 11 , Spring Boot , and Microservices architecture. The ICON Factor: Minimum 3 years of hands-on implementation using the ICON IPF framework within a banking environment (this ...

Senior Software Engineer

Hiring Organisation
Intelligent Steps
Location
London, United Kingdom
Employment Type
Contract
initial 6 month contract with possible extensions (OUTSIDE IR35) Remote with occacional trips to London (1 day per month) Required Skills Java, Spring, Spring Boot Experience working with DevOps methodologies and scalable CI/CD pipelines Microservices Architecture Exposure to Big Data technologies such as: Kafka, Spark, Hadoop ...

Booking and Messaging Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £625/day
Kafka, or RabbitMQ. Reactive & Agile: Experience with Functional Reactive Programming (RxJava/Flow API) within an Agile/Scrum setup. Data & Systems: Proficiency in Spring, SQL (Sybase/PostgreSQL), and distributed systems (Zookeeper). Performance: Skilled in low-latency communication and debugging complex distributed systems. If interested, please apply ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
onsite work in Swindon or London. Key Requirements Strong commercial experience with Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful APIs Hands-on experience applying TDD and BDD testing approaches Good understanding ...

Senior Backend Java Engineer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £575 per day
Essential skills and experience Strong hands-on commercial coding experience with modern Java (Java v17 min, v21 LTS or newer preferred) Strong experience with Spring Boot Experience building REST APIs/microservices from scratch Strong testing skills using JUnit, Mockito, and ideally TDD Experience with PostgreSQL or another relational … based systems Written automated tests as part of delivery Used Docker and CI/CD in practice Stayed technically current with modern Java and Spring Boot Non-negotiables Recent hands-on Java backend coding experience Built Spring Boot APIs/services from scratch Used Java 17/21+ ...

Project Manager - DevSecOps Platform Delivery

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
technologies, including: Ansible/Terraform Red Hat Enterprise Linux (RHEL) AWS Cloud Platform EKS/Kubernetes (K8s) Exposure to modern application development stacks: Java, Spring Boot, Microservices architecture Oracle RDS Experience working with distributed teams and third-party vendors Excellent stakeholder management and communication skills If this ...

Backend Java Engineer

Hiring Organisation
Alexander Mann Solutions - Contingency
Location
London, United Kingdom
Employment Type
Contract
subject matter expert. The skills you'll need: Solid practical and theoretical knowledge of Java software development. Strong experience of Spring Boot/Micronaut. An understanding of Kubernetes/Docker. Excellent understanding of AWS (deployment/configuration) Message-driven architectures/Kafka/event sourcing. Experience working ...

Java/Kotlin Developer

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£470 - £471 per day
direction, and championing quality through Test-Driven Development (TDD). Key Responsibilities Design, develop, and maintain secure, scalable backend services using Kotlin, Java, and Spring Boot. Collaborate closely with engineers, architects, and delivery teams in an agile environment. Contribute to technical discussions, architectural decisions, and continuous improvement initiatives. Write ...

Backend Software Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
London/Remote 6 months My client is an instantly recognisable consultancy who require a strong Backend Software Engineer with deep expertise in Java (Spring Boot) to join a large-scale, business-critical microservices programme. All candidates must be eligible for Security Clearance (SC) Key Requirements: Proven experience working … Java Software Engineer on large microservice architectures Strong experience building scalable backend and RESTful services using Java (Spring Boot) Ideally Java v21 (or very recent versions) Postgres (or other relational SQL databases) with a solid understanding of schema design and SQL Docker: confident containerising and deploying applications Test-Driven ...

Senior Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £451/day
basis. This is an exciting opportunity to work on innovative projects within a collaborative environment. Required Skills: Deep hands-on experience with Java and Spring Boot (Web Services, Spring Security, etc.) Strong knowledge of PostgreSQL (Postgres) - including schema design and query optimization Solid understanding of object-oriented programming ...

Full Stack Developer - Active SC, NPPV3, Java

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
commercial experience working as a Full Stack Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality, cross-functional … solutions using microservices and micro-frontend architectures Strong knowledge of Oracle PL/SQL and Web Applications. Hands-on experience with Java & Spring best practices, Docker, Git, Cloud Platforms, Jenkins, Nginx etc. Excellent communication skills. Nice to have: Technical leadership with the ability to identify delivery inefficiencies, escalate issues ...

Java Developer - Active SC, NPPV3, Java

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Proven commercial experience working as a Java Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality, cross-functional … solutions using microservices and micro-frontend architectures Strong knowledge of Oracle PL/SQL and Web Applications. Hands-on experience with Java & Spring best practices, Docker, Git, Cloud Platforms, Jenkins, Nginx etc. Excellent communication skills. Flexibility to go to various sites for training/knowledge transfer. Nice to have ...

Data Engineer (SC Cleared)

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £565 per day
support critical business and operational outcomes. Key Responsibilities Design, build and maintain scalable data pipelines and data services Develop backend components using Java and Spring Boot Work with Docker to containerise applications and support deployment Collaborate with cross-functional teams to deliver robust data solutions Ensure high data quality … across systems Support integration of data from multiple sources into unified platforms Core Skills & Experience (Required) Strong experience with Java development Proven expertise with Spring Boot frameworks Hands-on experience with Docker/containerisation Experience working as a Data Engineer within complex environments Solid experience with SQL and data ...

Senior Full Stack Engineer

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£90 - £100/hour Inside IR35
components ensuring software is exceptionally well covered by automated testing and software is clean and easy to understand and extend. * Build with Java Spring Book and Angular Typescript. * Ensure an exceptional user experience. * Ensure seamless integration and communication between front-end and back-end components. * Expose clear, documented APIs … external integrations. * Peer review code. Required: Extensive experience in: * Java Spring Boot and Angular web development. * Micro-services and micro front-ends. Reactive UX front end design patterns. High availability and high scalability design patterns. * GitLab and CI/CD. Agile development. Nice to have: * Experience working with Solidity ...

Backend Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £522/day
that ensure every production code change meets regulatory standards across thousands of repositories What You'll Do Architect & Build: Develop Java-based backend services (Spring Boot, Apollo) to enforce compliance controls within a GitHub Enterprise environment. Must have Skillset: Java, Springboot, GCP, GKE Who You Are Expert Developer: Java … experience (Spring Boot, Bazel, Maven) with a focus on distributed services and Kubernetes (GKE). System Designer: Strong skills in API design (gRPC, GraphQL, REST) and relational databases like PostgreSQL. Cloud Proficient: Hands-on experience with GCP services, including BigQuery and Cloud SQL. Security Minded: Experience with (or strong ...