Typically requires substantial experience delivering large-scale applications. Required Qualifications: Extensive development experience delivering large-scale applications emphasizing performance, scalability, security, and reliability. Strong expertise in Java/J2EE, Spring Boot, web services, and SQL & PL/SQL (Oracle). Proven experience working in Agile environments with continuous integration and continuous deployment (CI/CD), preferably in financial services. More ❯
in a highly Agile continuous integration and continuous deployment environment within commercial banking sector is essential. Strong understanding of Payment processing (STP). Strong experience in Java/J2EE, Spring Boot, Mule, web Services, Kafka, SQL & PL/SQL (Oracle) Strong knowledge of XML, JSON and its usage within API and Microservice implementations at scale. Significant expertise in cloud More ❯
practices and Jenkins. Comprehensive understanding of SOA and Restful APIs. Desirable Skillsets: Java skill set with a strong foundation in OOP and functional programming (Java 8+). Familiarity with Spring Boot's annotations, configuration, and deployment. Experience in Restful API development. Hands-on experience with DataPower appliances. Development experience using XSLT, Gateway Script, and XPath. Knowledge of security integration More ❯
and hands-on implementation.* Front End -Angular, TypeScript, JavaScript. - Primary skill (must have)* Back End - NodeJS, Mongoose, Event driven and Service Oriented Architectures. - Primary skill (good to have)* Java - Spring Boot, Maven, JPA, Hibernate. - Primary skill (good to have)* AWS - Service Buses, Function Apps, Event Grid, managing App Services. - Primary skill (good to have)* Database - SQL, MongoDB data and More ❯
an end client.Key requirements: Principal FullStack engineer with experience leading teams of engineers on complex projects Active Security Clearance (SC) and Active NPPV3 Full stack experience in C#, Java (Spring Boot, JPA/Hibernate), Rest APIs Experience in building microservices and knowledge of SOLID principles Understanding of 4GL (fourth generation programming language) Experience in backlog refinement, preparation of user More ❯
passion for mentoring and team development Experience working in or with financial services organisations is highly desirable Strong background in full-stack development with hands-on experience in Java, Spring Boot, Kafka, Microservices architecture, AWS, Angular and React About Us Why join us Career coaching, mentoring and access to upskilling throughout your entire FDM career Assignments with global companies More ❯
Role: Java Developer Duration: Till end of this year (Extendable) Location: Birmingham, UK (Onsite) Description: 4+ years of Java Development experience- Java 11+ Spring Experience working with microservices architecture Kafka for messaging - to some extent or equivalent MongoDB - to some extent or equivalent Strong understanding of SDLC Nice to haves: Gitlab - experience with others is generally fine, they can More ❯
Requirements: Proven experience as a Lead Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯
Employment Type: Contract
Rate: £500.0 - £550.0 per day + up to £550 per day (Inside IR35)
Requirements: Proven experience as a Principal Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯
Employment Type: Contract
Rate: £600.0 - £635.0 per day + up to £635 per day (Inside IR35)
Requirements: Proven experience as a Lead Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯
Requirements: Proven experience as a Principal Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Lorien
join our team on a 6-month contract. You'll be working on a modern, cloud-native platform, helping to build and maintain scalable backend services using Java and Spring technologies. This is a hands-on engineering role with opportunities to influence architecture and mentor others. Key Responsibilities: Design, develop, and maintain backend services using Java … and Spring Boot/SpringFramework Write clean, maintainable, and well-tested code with a strong emphasis on unit testing and BDD Collaborate with cross-functional teams including DevOps, QA, and Product Deploy and manage services on AWS , ensuring performance, scalability, and security Participate in Agile ceremonies, code reviews, and technical discussions Contribute to architectural decisions and best … practices Required Skills & Experience: Strong commercial experience with Java 8, 17, and 21 Deep understanding of Spring Boot and SpringFramework Proficient in unit testing and behavior-driven development (BDD) Solid experience with AWS and cloud-native development Familiarity with CI/CD pipelines and containerization (e.g., Docker) Strong communication skills and ability to work independently or lead More ❯
Liverpool, Merseyside, England, United Kingdom Hybrid / WFH Options
Hays Specialist Recruitment Limited
model, with 2-3 days per week on-site in Liverpool, and is inside IR35 (via umbrella company). Key Responsibilities: Develop and maintain scalable Java backend services using Spring Boot and SpringFramework Build and test RESTful APIs using Postman and Swagger Collaborate with DevOps teams to support CI/CD pipelines Manage cookies and session handling … with POJOs and mock data for testing and development Integrate front-end components using Thymeleaf and JSON What you'll need to succeed Essential Skills: Java (Core and Advanced) Spring Boot & SpringFramework jQuery Thymeleaf RESTful API development and testing (Postman, Swagger) CI/CD pipelines and DevOps collaboration Cookies/session management Unit testing with JUnit Handling More ❯
Liverpool, Merseyside, United Kingdom Hybrid / WFH Options
SmartSourcing Ltd
experience working on UK government digital services and are familiar with the GDS style and standards. They also want someone who has experience of building dynamic forms with Java Spring Boot, as this would be highly beneficial for the role. Experience Required: Proficient in Java, Spring Boot MVC, jQuery, and Spring Framework. Strong experience with JSON and More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Become
on delivering secure, scalable, and production-grade digital solutions for the financial services sector. This is a hands-on engineering role ideal for someone with deep expertise in Java, Spring Boot, and secure API design , and who thrives in fast-paced, client-facing environments. The successful candidate will play a key role in shaping backend architecture, driving secure service … delivery, and contributing to engineering standards across engagements. Key Responsibilities Design and develop backend services using Java and Spring Boot Architect and implement secure APIs using OAuth2, FAPI, OpenID Connect Ensure backend services are performant, scalable, and resilient Collaborate with frontend, DevOps, and QA teams to deliver integrated solutions Participate in architecture reviews, technical design sessions, and stakeholder workshops … including Agile , CI/CD , and DevSecOps Contribute to the development of reusable backend assets and CoE standards Required Skills and Experience Extensive hands-on experience with Java and Spring Boot in enterprise environments Proven expertise in designing and delivering secure APIs (OAuth2, FAPI, OpenID Connect) Strong understanding of microservices architecture and distributed systems Experience working in regulated environments More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Become
on delivering secure, scalable, and production-grade digital solutions for the financial services sector. This is a hands-on engineering role ideal for someone with strong experience in Java , Spring Boot , microservices , and API development , who thrives in collaborative, high-accountability environments. The successful candidate will contribute to backend service design, secure API delivery, and the development of reusable … engineering assets across client engagements. Key Responsibilities Design, develop, and maintain backend services using Java and Spring Boot Build and integrate secure APIs aligned with industry standards (e.g., OAuth2, OpenID Connect) Contribute to the development of microservices architectures and distributed systems Collaborate with frontend, DevOps, and QA teams to deliver cohesive, end-to-end solutions Participate in technical design … CoE engineering standards and reusable components Ensure adherence to Agile delivery practices, CI/CD pipelines, and DevSecOps principles Required Skills and Experience Strong hands-on experience with Java , Spring Boot , and enterprise-grade backend development Proven experience designing and implementing secure APIs and service integrations Solid understanding of microservices architecture , service orchestration, and distributed systems Experience working in More ❯
hold SC and NPPV3 or be eligible for both Location: Croydon - onsite 2/3 days a week Job Description: What you'll bring:* Experience of Java.* Experience of Springframework or equivalent.* Knowledge of software design patterns and when to apply them.* Excellent knowledge of development processes.* Experience of containerization using Docker or Kubernetes.* Experience of Continuous Integration … the skills, if not we can help develop them: * Designing microservice-based architectures using domain driven design (DDD). CQRS and Event Sourcing patterns.* Kubernetes.* Knowledge/Certification in Spring framework.* Experience in cloud technologies AWS/Azure/GCP. Please apply to the advert for more information. Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as More ❯
with proficiency in building and maintaining CI/CD pipelines Understanding of automation and orchestration scripting (Python, Bash, Ruby) Demonstrable experience with React Proficiency in Backend - Java v17+/Spring/Spring Boot Proven experience designing and implementing cloud-based architectures (AWS, Azure or GCP) Ability to implement monitoring solutions (e.g. Prometheus, Grafana) Experience implementing security best practices More ❯
Senior Java Developer - Glasgow - Investment Banking - Data/Spring/Linux/SQL/SDLC/Equity Primary responsibilities: The developer will work within an agile squad developing within a system comprising of numerous Java services that interact via messaging to produce the product outputs in Real Time. Technologies and techniques such as highly multi-threaded Java, Sharded Mongo … DB and caching are used in the stack to provide the scale and performance that the product requires. Skills: - Core Server Side Java including Data Structures and Concurrency - Spring, Junit - Linux - Relational Databases (Sybase and/or DB2 is preferable) with ability to write SQL queries - Understanding of message-based architectures - Good Problem solving and analytical skills - Full SDLC More ❯