1 to 25 of 27 Contract Spring Jobs in London

Lead Java Developer

Hiring Organisation
Response Informatics
Location
Croydon, Surrey, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £500 per day
Support live systems and diagnose incidents. Collaborate with the team to ensure high-quality Java code. Essential Skills and Experience: Proficiency in Java 17+, Spring Boot, Spring DataJPA, Spring Integration, Spring Batch, Microservices, Quartz, SQL Database (PostgreSQL), JPA (Hibernate), REST and SOAP Web Services, Messagingservice(ActiveMQ … components, Postgres/Aurora, Bootstrap, Docker, TDD, Agile (Scrum) Public sector experience. 8-10 years of hands-on experience with large-scale Spring-based Java projects. Experience supporting live systems and diagnosing incidents. Experience in large-scale integration projects involving microservices, messaging, web services, and distributed systems. Experience with ...

Senior Back-End Developer – Java

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
with cross-functional team, including product owner, business analysts, scrum masters, front-end and back-end developers • Design, develop and implement microservices using Java Spring Boot, ensuring code is modular, testable and re-usable • Design, develop and implement responsive and intuitive user interfaces using Angular and TypeScript/Java … with the project’s overall vision. Qualifications: • Strong expertise in Core/Advanced Java and J2EE • Experience in developing and deploying microservices architectures using Spring Boot, Spring Batch, Spring Data, or similar frameworks • Knowledge of JIRA, Junit, and Apache Kafka are preferred • In-depth knowledge of REST ...

Back End Developer

Hiring Organisation
Experis
Location
Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
£520 - £570/day
Hands-on experience with Kafka in production environments Experience building and consuming RESTful APIs Solid understanding of backend engineering principles Nice-to-Have Skills Spring ecosystem (Spring Framework, Spring Boot, Spring Data) Postgres or other relational databases OpenSearch/Elasticsearch Node.js Wiremock or other API mocking ...

Senior Java Engineer (Smart Contract)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
paced atmosphere and enjoy collaborating with cross-functional teams, this opportunity is for you! What We're Looking For: Strong expertise in Java and Spring/Spring boot. Hands on Smart Contract (Solidity) experience in essential Experienced in financial services , Ideally Commercial Lons. Experience in developing and deploying … microservices architectures using Spring Boot, Spring Batch, and Spring Data In-depth knowledge of REST API principles and HTTP protocols. Proficiency in Git, CI/CD, and Agile methodologies. Familiarity with JIRA, JUnit, and Apache Kafka is preferred. Experience with NoSQL databases such as CosmosDB and MongoDB. ...

Principal Developer / Architect

Hiring Organisation
IntaPeople
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 - 620 Daily
background in distributed, cloud native, and data intensive systems. Deep AWS experience (essential). Strong data modelling and data architecture skills. Expertise in Java, Spring Boot, REST/event driven services; good knowledge of Angular/Node.js. Solid understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker ...

Principal Developer / Architect

Hiring Organisation
IntaPeople
Location
Remote, Sutton South, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £620/day
background in distributed, cloud‑native, and data‑intensive systems. Deep AWS experience (essential). Strong data modelling and data architecture skills. Expertise in Java, Spring Boot, REST/event‑driven services; good knowledge of Angular/Node.js. Solid understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker ...

Principal Engineer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600.0 - £640.0 per day + up to £640 pd (Inside IR35)
depth knowledge of a fourth-generation programming language (4GL) Strong skills in object-oriented analysis and design (OOAD) Proven experience with C#, Java (Spring Boot, JPA/Hibernate), REST APIs, observability, monitoring, queue technologies, security, and relational databases (especially Postgres). Strong understanding of SOLID principles, microservice development focused ...

Payment Lead

Hiring Organisation
e2e Infosys
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 420 Daily
across the payment ecosystem , including integrations, reconciliation, and payment processes Hands-on experience implementing payments with Stripe 10+ years of full-stack development experience (Spring Boot, Microservices, Node.js) Experience with AWS, Linux, ReactJS, MySQL (RDS), Elasticsearch Ecommerce & payment solution design experience, including Order-to-Cash Middleware and event-driven ...

ACBS Developer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
continuous improvement initiatives Produce technical documentation and support knowledge transfer Technical Skills Strong hands-on experience with FIS ACBS Proficiency in Java, J2EE, Spring, and related frameworks Experience with SQL, Oracle, or DB2 databases Knowledge of ACBS APIs, batch jobs, and reporting tools Experience with Unix/Linux environments ...

Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £522 per day
Skills & Experience required Skills: 2-5 years development experience, systems administration experience for J2EE applications, JBoss, Jenkins, Ansible, Git, Agile Scrum Experience. Technologies: Java, Spring Framework, Web Services, JMS, MDB, Junit, JIRA ...

Fullstack Developer

Hiring Organisation
Experis
Location
South Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
£520 - £521 per day
travel to Croydon Inside IR35 - Umbrella only Active SC clearance required, eligible candidates will be considered Required Skills: Java Kafka Nice to Have Skills: Spring (Framework, Boot, Data) Postgres OpenSearch/ElasticSearch NodeJS Rest API Wiremock (API mocking) Suitable Candidates should submit CVs in the first instance ...

Fullstack Developer

Hiring Organisation
Experis
Location
South Croydon, Surrey, United Kingdom
Employment Type
Contract
Contract Rate
GBP 520 - 521 Daily
travel to Croydon Inside IR35 - Umbrella only Active SC clearance required, eligible candidates will be considered Required Skills: Java Kafka Nice to Have Skills: Spring (Framework, Boot, Data) Postgres OpenSearch/ElasticSearch NodeJS Rest API Wiremock (API mocking) Suitable Candidates should submit CVs in the first i click apply ...

Full-Stack Developer

Hiring Organisation
Sanderson Recruitment
Location
South Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £500 per day + Inside IR-35
public sector programme focused on delivering secure, high-performance systems that support critical government services. Required Skills * Java * Kafka Nice to Have Skills * Spring (Framework, Boot, Data) * Postgres * OpenSearch/ElasticSearch * NodeJS * Rest API * Wiremock (API mocking) Reasonable Adjustments: Respect and equality are core values to us. ...

Senior Platform Software Engineer - F56465

Hiring Organisation
Caresoft Global Ltd
Location
Stratford, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£73.18 per hour
coding standards. Qualifications and Skills Essential: Java Ecosystem: Extensive software development experience in JVM languages (Java, Kotlin) across multiple projects, with deep knowledge of Spring and Spring Boot Frameworks. Cloud & Infrastructure: Experience with Google Cloud Platform (GCP) products (e.g., Cloud Run, PubSub, Secret Manager). Observability: Experience implementing ...

FX e Trading Senior Full Stack Engineer (React TypeScript + Java)

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven, and microservices-based backend components (e.g., Spring Boot), including APIs, market data, order/risk workflows, and real-time streaming. Build performant and accessible UIs with modular, reusable components; drive state … looking for Professional software engineering experience, with deep expertise in: Frontend: React, TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar), multithreading/concurrency, performance tuning. Experience designing and operating distributed systems (microservices, event-driven architectures, messaging/streaming). Strong understanding ...

Java Developer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £420/day up to £420 pd (inside IR35)
client. Key Requirements: Must have Active SC Clearance Strong experience in Java 1.8+ application development. Expertise in ReactJS and NodeJS for web applications. Spring/Spring Boot development. Proficiency in Test Driven Development and design patterns for modular, reusable code. Knowledge of REST APIs, asynchronous messaging, and database ...

Senior Platform Software Engineer - Mobile Apps

Hiring Organisation
ARM
Location
Stratford, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540/day
Ensure UX alignment with platform conventions Community - Share best practices - Define coding standards - Identify cross-product opportunities Essential Skills & Experience - Java/Kotlin with Spring and Spring Boot - Google Cloud Platform (Cloud Run, Pub/Sub, Secret Manager) - Observability tools (Grafana, Splunk) - REST API design - TDD, pair programming ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven, and microservices-based backend components (e.g., Spring Boot), including APIs, market data, order/risk workflows, and real-time streaming. Build performant and accessible UIs with modular, reusable components; drive state … implementation plans. Essential: Professional software engineering experience, with deep expertise in: Frontend: React, TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar), multithreading/concurrency, performance tuning. Experience designing and operating distributed systems (microservices, event-driven architectures, messaging/streaming). Strong understanding ...

Senior Full Stack Engineer – FX e-trading – Java / React

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven, and microservices-based backend components (e.g., Spring Boot), including APIs, market data, order/risk workflows, and real-time streaming. Build performant and accessible UIs with modular, reusable components; drive state … looking for Professional software engineering experience, with deep expertise in: Frontend: React, TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar), multithreading/concurrency, performance tuning. Experience designing and operating distributed systems (microservices, event-driven architectures, messaging/streaming). Strong understanding ...

Mobile App Experience Layer Engineer

Hiring Organisation
ARM
Location
Stratford, London, United Kingdom
Employment Type
Contract
Contract Rate
£508 - £548/day Inside IR35
Ensure UX alignment with platform conventions Community - Share best practices - Define coding standards - Identify cross-product opportunities Essential Skills & Experience - Java/Kotlin with Spring and Spring Boot - Google Cloud Platform (Cloud Run, Pub/Sub, Secret Manager) - Observability tools (Grafana, Splunk) - REST API design - TDD, pair programming ...

Mainframe Developer with CICS Webservices

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £350 to £400 per day
/Experience Option 1: Java-Based Skills Java skill set. Strong foundation in Java, including OOP and functional programming (Java 8+). Familiarity with Spring Boot annotations, configuration, and how it simplifies Spring application setup and deployment. RESTful API development experience. Option 2: Integration & Middleware Skills Hands ...

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 Hands-on experience with Java & Spring best practices, React, and cloud/data services including SNS, SQS, S3, Aurora/PostgreSQL, and OpenSearch Excellent communication skills. Nice to have: Technical leadership with the ability to identify delivery inefficiencies, escalate issues, and drive ...

Mobile Apps Developer

Hiring Organisation
Harvey Nash IT Recruitment UK
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
automotive applications tech. Experience within Automotive industry Technical essentials Software development experience in JVM languages (Java, Kotlin) across multiple projects, with deep knowledge of Spring and Spring Boot Frameworks. Experience with Google Cloud Platform (GCP) products (eg, Cloud Run, PubSub, Secret Manager). Experience implementing and utilizing observability ...

Mobile Apps Developer

Hiring Organisation
Harvey Nash
Location
London, United Kingdom
Employment Type
Contract
automotive applications tech. Experience within Automotive industry Technical essentials Software development experience in JVM languages (Java, Kotlin) across multiple projects, with deep knowledge of Spring and Spring Boot Frameworks. Experience with Google Cloud Platform (GCP) products (e.g., Cloud Run, PubSub, Secret Manager). Experience implementing and utilizing observability ...

Automation Tester

Hiring Organisation
FDM Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
within the release process About You Extensive experience in Automation testing and keenly interested in gaining experience in Automated testing using common frameworks including Spring boot, Phyton and Selenium Possess strong programming language expertise in Java and Spring boot Familiar with agile software development especially SCRUM Good communication ...