1 to 25 of 27 Part-Time Spring Boot Jobs in the City of London

Senior Java Engineer – Kafka & Spring Boot About the Client We’re working with an innovative team building the next generation of secure, real-time communication and data platforms. Their flagship product is a fresh reimagining of an existing system, crafted to provide robust, distributed coordination for a wide … or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure, distributed backend system designed for real-time operations and maximum resilience. You’ll … backend services that keep people and teams connected when it matters most. Your Day-to-Day ️ Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Senior Java Engineer – Kafka & Spring Boot About the Client We’re working with an innovative team building the next generation of secure, real-time communication and data platforms. Their flagship product is a fresh reimagining of an existing system, crafted to provide robust, distributed coordination for a wide … or workshops – always with advance notice. The Role We’re looking for a Senior Java Engineer who thrives in the world of Kafka and Spring Boot. You’ll play a key role in crafting a secure, distributed backend system designed for real-time operations and maximum resilience. You’ll … backend services that keep people and teams connected when it matters most. Your Day-to-Day ️ Architect and build event-driven microservices using Java, Spring Boot, and Kafka Be responsible for the backend engineering for secure, distributed real-time systems Design and deliver rock-solid APIs in collaboration More ❯

Technical Team Lead - Java | Spring Boot | AWS | Kubernetes £100,000-120,000 base salary Extensive Benefits and 10% bonus Java21, Spring Boot, Kubernetes, Docker, AWS Central London, hybrid with 2 days a week onsite ‍InsurTech | AI-Powered B2B/B2C SaaS Technical Team Lead - We have … You will report into the Director of Engineering being part of the technical leadership team for business vertical. The tech stack consists of Java21, Spring Boot, Kubernetes, Docker, Terraform, Helm and various AWS services. Requirements Experience leading an engineering team/squad (minimum of 3 direct reports) Experience … can explain technical concepts to different audiences and stakeholders. Ability to drive system design decisions, balancing scalability, performance, and maintainability. Technical Team Lead - Java | Spring Boot | AWS | Kubernetes More ❯

as the team expands. Key Responsibilities Design, develop, and maintain scalable and secure trading applications Write clean, testable, and maintainable code using Java and Spring Boot Build and integrate RESTful APIs and third-party services Participate in code reviews and Agile development processes Troubleshoot production issues and support … Bachelor's degree in Computer Science, Information Systems, or a related field 5–8 years of professional experience in Java development Strong expertise with Spring and Spring Boot frameworks Proficiency in SQL (PostgreSQL preferred) and ORM technologies (e.g., Hibernate) Experience with REST API development and test-driven More ❯

a small, agile team focused on end-to-end reporting solutions—spanning regulatory and strategic platforms. This role combines hands-on development with Java , Spring Boot , SQL , and data frameworks, alongside leadership in project delivery and resource planning. You’ll serve as a subject matter expert (SME) across … design best practices and technical guidance. Essential Skills & Requirements: Expertise in Java (essential), with additional skills in C#/.NET development. Proven experience with Spring Boot ; exposure to Spring Batch is a plus. Strong knowledge of SQL and experience with reporting tools like SSRS, Power BI, SSAS More ❯

a small, agile team focused on end-to-end reporting solutions—spanning regulatory and strategic platforms. This role combines hands-on development with Java , Spring Boot , SQL , and data frameworks, alongside leadership in project delivery and resource planning. You’ll serve as a subject matter expert (SME) across … design best practices and technical guidance. Essential Skills & Requirements: Expertise in Java (essential), with additional skills in C#/.NET development. Proven experience with Spring Boot ; exposure to Spring Batch is a plus. Strong knowledge of SQL and experience with reporting tools like SSRS, Power BI, SSAS More ❯

team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes , CI/… through automation. Requirements: 7–10+ years of professional experience in software engineering, with a strong focus on Java backend development . Solid understanding of Spring Boot , Kafka , RabbitMQ , PostgreSQL , and modern API design patterns. Hands-on experience or familiarity with DevOps tools and concepts – e.g. Kubernetes , Git-based More ❯

Role: Backend Java Spring Boot Developer Contract Duration: 12 months Work Arrangement: Hybrid - Croydon (Biweekly on-site presence) IR35 Determination: Inside Sector: Government/Public Services Interview Format: Single-stage via Microsoft Teams Security Clearance: SC/NPPV3 REQUIRED We are seeking a skilled Java Developer to contribute … Update API documentation to reflect new or modified functionality. -Present completed work for stakeholder review and approval during sprint reviews. Essential Skills -Java/Spring Boot Microservices -AWS Kubernetes -Hibernate -Debezium -Messaging systems (eg, SNS/SQS) -AWS RDS/Aurora PostgreSQL -AWS OpenSearch -Jenkins/Git/ More ❯

architecture, own features end-to-end, and putting your stamp on architectural decisions that drive the product forward. Key Responsibilities Design, implement and maintain Spring Boot services in Kotlin, with a focus on clean architecture and resilience. Model data in PostgreSQL , own schema migrations with Liquibase , and access … with logs/metrics, triaging incidents and feeding learnings back into design and tests. About You Professional experience building Kotlin (or Java) services on Spring Boot in production. Solid knowledge of PostgreSQL schema design, indexing, SQL queries and migration tools ( Liquibase or similar) and fluency with jOOQ or More ❯

London on a 12 month rolling contract. The ideal candidate will need to be a Strong Java Developer with experience working on A ngular, Spring boot and integration technologies. Responsibilities: Work closely with Product Owner, Development & QA engineers to deliver timely and quality deliveries Be adaptive to a … to squads on the platform with feature ownership as we deliver new functionality on a daily release cadence Experience: Core Java developer experience with Spring boot Experience with integration technologies - MQ/Xml/SOAP/JSON Proficiency in Database Management Systems (SQL Server/Mongo/Snowflake More ❯

qualification verification of workers. Migrate complex concepts from a monolithic Ruby on Rails app to standard Indeed service-oriented technology stack(s), typically Java Spring-boot OR Python Django . Fearless of technologies, frameworks, and languages. Drive requirements and display ownership of large, complex projects or systems. Manage …/Competencies Demonstrated polyglot ability and an eager willingness to jump into any code base. In particular, familiarity with Python/django, or Java, Spring Boot and Ruby/rails are strongly desired. Any experience in Rust will also be strongly considered. Breaking apart monoliths, utilizing contextually appropriate More ❯

to code reviews and troubleshoot production issues. What we're looking for: Minimum 8 years of Java development experience. Strong expertise in Enterprise Java, Spring/Spring Boot, Web, Security, ORM, Junit/Mockito, Maven/Gradle. Command of SQL/NoSQL, Hibernate/Spring Data. More ❯

with business stakeholders to shape solutions Contribute to agile best practices Key Requirements: 5+ years of core Java development experience Expertise in microservices architectures (Spring Boot, Docker, Kubernetes) Strong experience with GUI technologies (React, TypeScript, HTML5) Experience in full SDLC (Git, Maven, Bamboo) Strong understanding of modern software More ❯

Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience Cloud experience with containerization (Docker, Kubernetes), Database (Relational and More ❯

Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience Cloud experience with containerization (Docker, Kubernetes), Database (Relational and More ❯

level budget: £55k + full benefits + fully remote Primary requirements: Must be eligible for SC Clearance Extensive experience of building microservices with Java (Spring Boot) (and NodeJS as a bonus) Experience with cloud technologies such AWS or Azure Experience with CI/CD (Gitlab, GitHub, Jenkins) Experience More ❯

when making product decisions and explain why you would do things a certain way Manage client and stakeholder relationships Additional technical skills: AWS Lambda, Spring Boot, NodeJS, Python FastAPI, Oracle, PostgreSQL and MongoDB This represents an excellent opportunity to secure a permanent role with a high profile and More ❯

initiatives. Ensure software quality through unit testing, automation, and documentation. Requirements of the Contract Application Developer (Java, Typescript, Endur): Proven experience in Java development (Spring Boot, REST APIs). Solid front-end experience with TypeScript and modern frameworks (e.g., Angular or React). Hands-on experience with Endur More ❯

on sensitive UK Government projects. Key Skills & Technologies: Core Expertise: Microsoft Power Platform (Power Apps, Power Automate, Power BI) Desirable/Environment Tools: Java, Spring Boot JavaScript/TypeScript, React SQL Server, PostgreSQL, MongoDB Kafka, ActiveMQ, ElasticSearch Docker, REST, API Gateways AWS, Jenkins, Ansible WSO2 We’re open More ❯

object-oriented design, and microservices architecture (This will be tested) Proven record of complex software delivery in the Interest Rates domain Excellent Java 21, Spring Boot, strong practical experience with containers, REST APIs, and WebSockets Strong experience of Agile, SCRUM, and test-driven development processes Strong leadership experience More ❯

clients in London is looking for a Principal Software Engineer to lead a development team working on an exciting project. Key Skills: Java Development Springboot Microservices REST APIs Cloud (AWS Ideally or Azure) Leadership experience Mobile app development Exposure to retail industry (not essential) Key Responsibilities: Lead the team on More ❯

cross-functional application development teams, fostering a culture of excellence and collaboration. Drive the design and implementation of scalable microservice architectures using Java and Spring Boot. Guide teams through cloud-native application development and deployment, primarily on AWS. Design and model data structures, optimize databases, and address performance bottlenecks. … experience leading application development teams and delivering complex projects. Demonstrated ability to mentor, coach, and motivate high-performing engineering teams. Strong expertise in Java, Spring Boot, and microservice architecture. Deep understanding of cloud environments, particularly AWS. Experience in database design, data modeling, performance tuning, and optimization. Familiarity with More ❯

Strong problem solving skills are essential for identifying issues analyzing root causes and developing effective solutions Skills Mandatory Skills : Java, MS SQL, Spring, SpringBoot, Jpa More ❯

ways of working in the business Key Requirements: Strong commercial experience in Kotlin or related JVM technologies for backend development Confidence to work with Spring Boot or Ktor to build robust microservices Strong ability to write secure, resilient, and well-tested code Desire for building API-first products More ❯

improve the ways of working in the business Key Requirements: Strong commercial experience in the JVM ecosystem for backend development Confidence to work with Spring Boot or Ktor to build robust microservices Strong ability to write secure, resilient, and well-tested code Desire for building API-first products More ❯