Trabajos spring developer en Reino Unido

Java Developer - multiple roles £510/day Inside IR-35 6 month contract Active SC required Remote with occasional travel to London for client meetings only - expensable We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. You'll work in multidisciplinary teams delivering secure, reliable and scalable systems. The role is hands-on and focused on building high quality software using modern engineering practices. What you'll do You'll design, build and maintain Java based microservices, applying test driven development and following established engineering standards. You'll work with technologies including Java, Spring Boot, Postgres, Kafka, Docker, React and AWS. You'll contribute to CI/CD pipelines, ensure non-functional requirements are met and collaborate with colleagues across engineering, analysis and design. Essential experience • Java and Spring Boot, • Building and maintaining microservice based systems, • Postgres or other relational SQL databases, • Test-driven development (JUnit, Mockito or similar), • Docker and containerisation, • CI/CD pipelines (Jenkins or similar), • Kafka, • Liquibase or similar migration tooling, • Swagger/OpenAPI, • Gradle, • React, • TypeScript Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Senior Java Fullstack Developer - VP level - Investment Technology / Finance An industry leading global financial and technology organisation are looking for Senior Java Software Engineers with 7+ years’ experience, who have some experience in React or similar, plus modern JavaScript/TypeScript, who like to innovate and be part of a team creating next-generation investment finance technology. Based in London, you will be a key part of the team responsible for engineering a cloud-first Private Markets platform using a microservice architecture, supporting hundreds of client businesses, managing and analysing their portfolios. The team’s focus is to design and implement authorisation and permissions management using RBAC and policy based approaches. The team owns permissions management capabilities (roles, entitlements, lifecycle changes) and drives integration with the central authentication platform to enable consistent access control across applications and environments. The team is very quickly moving to AI-enabled development, and you will be at the heart of that transformation. Responsibilities • Work closely alongside the Engineering Lead to deliver the technical strategy for your team., • Deliver high efficiency, high availability, concurrent and fault tolerant software systems using API-First principles., • Design, develop, and implement secure, scalable, and reliable micro-services to deliver client-facing applications using a Java backend and React frontend., • Optimize performance and reliability through continuous testing, debugging, and refinement., • Stay abreast of industry trends and emerging technologies to drive innovation and maintain a competitive edge, with a particular focus on AI., • 7+ years of professional experience in Java development, with a focus on building client facing APIs or platforms, • Strong written and verbal communication skills, with experience managing and mentoring diverse teams., • Knowledge of building applications using AI tooling and frameworks (e.g. LLMs, prompt engineering, vector databases)., • Experience integrating AI/ML services into backend systems and APIs., • Familiarity with AI driven development practices and tools for code generation and testing., • Strong proficiency in Java and related frameworks (e.g. Spring Boot, Hibernate)., • Some experience in React or similar and modern JavaScript/TypeScript., • Solid experience with object oriented design and applying standard design patterns, • Experience designing, building, and deploying scalable microservices using API first principles with REST and/or gRPC., • Experience with API authentication and authorization mechanisms (e.g. OAuth, JWT)., • Hands on experience with engineering tools such as Git, Maven, unit and integration testing frameworks, and mocking libraries., • Exposure to Docker, Kubernetes, and cloud services in an enterprise environment is beneficial., • Experience with message brokers such as Kafka a plus., • A friendly, positive, and can do attitude., • A Bachelor’s degree in Computer Science, Engineering, or a related field.

Job Title:Java Technical Lead Salary: Paying up to £80,000 per annum Location: Wembley London - 5 days on-site Our client, a well-established and diversified multinational organisation, is seeking a Java / DevOps Technical Lead to join their team. Skills • Solid Experience in Java development with significant, demonstrable experience in Spring Boot and Microservices architecture - not just familiarity, but production ownership., • Azure Integration: Proven experience building applications that consume Azure-native services, including Azure Key Vault for secrets, Azure Storage API, and Azure Service Bus for event-driven messaging., • DevOps Mindset: Solid understanding of the full CI/CD lifecycle; comfortable reading and contributing to Dockerfiles and GitHub Actions YAML workflows - not as a DevOps engineer, but as a developer who understands the pipeline their code flows through., • Engineering Standards: Define and enforce the clients Java and Node.js coding standards across the team - with a specific focus on robust exception handling, ninary stream handling, structured logging via Application Insights, and adherence to security-first development practices., • Cloud-Native Readiness: Ensure all application logic is optimised for containerisation from the ground up. This includes implementing proper Health Check endpoints, secure Secret Management via Azure Key Vault, correct port mapping for Container Apps, and stateless design principles compatible with Azure Container Apps (ACA)., • Technical Mentorship: Provide direct, hands-on mentorship to junior and mid-level developers - identifying technical debt at the codebase level, running structured code reviews, and building a culture of engineering excellence that prevents recurring quality issues such as corrupted or misconfigured deployments., • Architectural Liaison: Work closely with the Principal Architect to translate High-Level Designs (HLDs) into production-ready implementation plans - ensuring the development team understands not just what to build, but why the architectural decisions were made, and what constraints must be respected., • Quality Assurance: Champion a strong automated testing culture - unit tests, integration tests, and contract tests - to prevent regression and ensure deployments are verifiably stable before reaching production.

Principle Java Engineer • Salary to £70k + Company Options Scheme, • Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency in the UK with no more than a 3 month break outside the UK. This company is a Workflow & AI Orchestration Specialist. They're on a mission to modernise how public sector organisations manage casework, derive insight from data and deliver citizen services. They’re growing fast and looking for bright, dynamic people to help build their business. Role They’re looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. You’ll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration — helping their public-sector clients build secure, scalable, and resilient digital services. You’ll collaborate with solution architects, business analysts, and designers to translate workflows into elegant, maintainable code. You’ll play a key part in defining technical standards, optimising runtime performance, and mentoring less- experienced engineers in workflow-centric delivery. This is an ideal role for someone who enjoys solving complex process problems through clean code, automation, and modern engineering practices. The role involves visiting client sites; the company will cover travel expenses. Frequency is uncertain but candidates should be comfortable with that being 2-3 days per week. Client sites could be anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service designers to refine and iterate business processes Develop and maintain automated test suites, CI/CD pipelines, and containerised deployments Optimise Camunda engine performance and monitor workflow metrics for production environments Participate in code reviews, peer testing, and technical design discussions Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided in the UK for the past 5 years) and prepared to go through UK SC Security Clearance Strong experience in Java software engineering and object-oriented design Strong Spring (Boot) experience Experience with REST APIs, and microservice architectures Knowledge of Docker and Kubernetes for containerisation and orchestration Proficiency in Git, CI/CD pipelines, and automated testing frameworks Understanding of event-driven design and message brokers (e.g. Kafka, RabbitMQ) Good knowledge of security, authentication, and integration patterns for enterprise systems Experience working in agile teams within digital transformation or automation programmes A willingness to learn BPMN and Camunda tooling Some exposure to process automation or microservice orchestration Desirable Experience with Camunda 8 (Zeebe) clusters and Operate/Tasklist components Experience implementing solutions using Camunda 7 or 8 (BPMN/DMN) Familiarity with Camunda connectors, external task workers, and scripting extensions Exposure to cloud platforms (AWS, Azure, GCP) and infrastructure-as-code (Terraform, Helm) Experience integrating process automation with case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National and able to achieve SC or DV clearance. i.e. you have at least 5 years residency in the UK with no more than a 3 month break outside the UK. NB: for non-UK Citizens; we cannot accept applications from anyone requiring sponsorship (now or in the future) for UK permanent employment status. If you are utilising a work visa this must allow you to work in the UK unrestricted for at least the next 5 years. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage

SENIOR SOFTWARE DEVELOPER £85,000 GUILDFORD This is an opportunity to join an innovation-led software consultancy working on complex, real-world engineering problems. The role offers high levels of autonomy, technically challenging work, and exposure to a wide variety of short-to-mid-term projects. THE COMPANY Our client is a specialist software consultancy delivering bespoke products for organisations operating in highly constrained, problem-heavy environments. They focus on technical excellence, innovation and delivery quality, offering engineers the chance to work on challenging systems rather than repetitive product features. THE ROLE • Design and build end-to-end software solutions, • Work as a senior full-stack engineer (backend-leaning), • Own delivery of complex technical problems, • Build, deploy and support cloud-based systems, • Collaborate with engineers and data specialists on production solutions, • 5+ years commercial software development experience, • Strong Java and Spring / Spring Boot background, • Frontend experience with Angular (React or Vue also acceptable), • Experience building microservices and APIs, • Cloud experience (Azure preferred, AWS acceptable), • Hybrid working, • Up to £80,000 base salary, • Pension contribution, • 25 days holiday plus bank holidays (option to buy more), • Paid training days and charity days, • Must be eligible to obtain UK Security Clearance Please submit your CV to Harry Lack for review through the 'apply' link.

Location: London, UK Industry: Investment Banking Work pattern: Hybrid (2/3 days onsite) We’re looking for an experienced Backend Developer to join a leading investment bank and help drive innovation that empowers people and businesses across Asia, Africa, and the Middle East. This role is part of the Blade function, delivering strategic initiatives that make a real impact. Prior banking experience is highly desirable. The Key Responsibilities As a senior developer, you’ll be driving our platform forwards and delivering quality solutions to business-critical customer requirements. Based in London, you will collaborate in a dynamic global team with fellow technologists, business analysts, project managers and business stakeholders across multiple locations. Key Attributes • An excellent Java developer with good software design principles and the ability to write robust code and accompanying test suites, • Ability to write efficient, clear code and be able to articulate what has been implemented and why, • Self-starter who can drive/facilitate requirements and development effort, • Take ownership and responsibility for the full development lifecycle, • Experience working in an agile development environment, • A team player, capable of engaging with other teams, • Experience in the end-to-end design, development and support of financial markets systems, • Experience with real-time (event-driven) architectures, • Being a full-stack web developer is a plus Technical skills: • 5+ years hands on development with investment banking., • E-trading- FX/FI experience is must, • Core Java (essential), Concurrency, Spring, • RX Java is a plus, • Experience in micro-services and container technologies (preferably Docker) is a plus, • Familiarity with CI/CD and DevOps, • Experience with distributed data stores a plus, • Functional programming experience a plus Functional skills: • Financial Market domain knowledge, • Investment banking is a strong plus, • Derivatives knowledge is a plus Soft skills: • Fluent in English (speaking and writing), • Strong ownership and ability to deal with ambiguity, • Outstanding problem-solving skills, • Proactive, self-starter, autonomous, • Good team spirit Rate: GBP 700 - 750/day (negotiable) PAYE inside IR35 (Annual leave: 38 days including Bank Holidays + 3% Pension + 15% Employees NI)

Responsibilities • Engineering Standards: Define and enforce Java and Node.js coding standards across the engineering team, with a strong emphasis on robust exception handling, binary stream processing, structured logging using Application Insights, and security‑first development practices., • Cloud‑Native Readiness: Ensure all application logic is designed for containerisation from inception. This includes implementing reliable health check endpoints, secure secret management using Azure Key Vault, correct port configuration for Container Apps, and stateless architecture aligned with Azure Container Apps (ACA) principles., • Technical Mentorship: Provide hands-on mentorship to junior and mid-level developers by identifying code-level technical debt, leading structured code reviews, and fostering a culture of engineering excellence that proactively prevents recurring quality issues such as misconfigured or corrupted deployments., • Architectural Liaison: Collaborate closely with the Principal Architect to translate High‑Level Designs (HLDs) into production-ready implementation plans. Ensure the development team understands not only what to build, but why architectural decisions were made and which constraints must be observed., • Experience: 10+ years of professional Java development experience, with proven production ownership of Spring Boot–based microservices architectures., • Azure Integration: Demonstrated experience building applications that integrate with Azure-native services, including Azure Key Vault for secrets management, Azure Storage APIs, and Azure Service Bus for event-driven messaging., • DevOps Mindset: Solid understanding of the end‑to‑end CI/CD lifecycle, with the ability to read, review, and contribute to Dockerfiles and GitHub Actions workflows as a developer who understands the delivery pipeline their code passes through., • API Mastery: Deep expertise in RESTful API design, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email delivery using SendGrid., • Testing Discipline: A strong, non‑negotiable commitment to automated unit and integration testing, with the ability to define and promote testing standards that can be adopted and maintained consistently across the wider team., • Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent practical experience. Relevant Microsoft Azure developer certifications are considered an advantage.

esponsibilities • Engineering Standards & Code Quality, • Define and enforce Java and Node.js engineering standards across the team, with a strong emphasis on robust exception handling, binary stream processing, structured logging using Application Insights, and security‑first development practices., • Cloud‑Native Application Readiness, • Ensure applications are designed for containerisation from inception, including the implementation of health check endpoints, secure secrets management via Azure Key Vault, correct port configuration for container workloads, and stateless design principles compatible with Azure Container Apps (ACA)., • Technical Leadership & Mentorship, • Provide hands‑on technical mentorship to junior and mid‑level engineers by conducting structured code reviews, identifying and addressing technical debt, and fostering a culture of engineering excellence that prevents recurring quality issues such as corrupted or misconfigured deployments., • Architecture & Delivery Alignment, • Collaborate closely with the Principal Architect to translate High‑Level Designs (HLDs) into clear, production‑ready implementation plans. Ensure the team understands architectural intent, design trade‑offs, and non‑functional constraints that must be adhered to., • Quality Assurance & Testing Strategy, • Experience, • 10+ years of professional Java development experience, with substantial hands‑on ownership of Spring Boot–based microservices in production environments., • Azure Platform Integration, • Proven experience building applications that integrate with Azure‑native services, including Azure Key Vault for secrets management, Azure Storage APIs, and Azure Service Bus for event‑driven and asynchronous workloads., • DevOps‑Aware Development, • Strong understanding of the end‑to‑end CI/CD lifecycle, with the ability to read, understand, and contribute to Dockerfiles and GitHub Actions workflows as a developer who appreciates the operational path their code follows., • API & Integration Expertise, • Deep knowledge of RESTful API design, OAuth2 authentication flows (including FusionAuth integrations), and DMARC‑compliant transactional email delivery using SendGrid., • Testing Discipline & Standards, • A non‑negotiable focus on automated unit and integration testing, with the capability to define and uphold testing standards that can be consistently adopted across the engineering team., • Education & Certifications, • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent practical experience. Microsoft Azure developer certifications are considered an advantage.

Responsibilities • Engineering Standards: Define and enforce Java and Node.js coding standards across the engineering team, with a strong emphasis on robust exception handling, binary stream processing, structured logging using Application Insights, and security‑first development practices., • Cloud‑Native Readiness: Ensure all application logic is designed for containerisation from inception. This includes implementing reliable health check endpoints, secure secret management using Azure Key Vault, correct port configuration for Container Apps, and stateless architecture aligned with Azure Container Apps (ACA) principles., • Technical Mentorship: Provide hands-on mentorship to junior and mid-level developers by identifying code-level technical debt, leading structured code reviews, and fostering a culture of engineering excellence that proactively prevents recurring quality issues such as misconfigured or corrupted deployments., • Architectural Liaison: Collaborate closely with the Principal Architect to translate High‑Level Designs (HLDs) into production-ready implementation plans. Ensure the development team understands not only what to build, but why architectural decisions were made and which constraints must be observed., • Experience: 10+ years of professional Java development experience, with proven production ownership of Spring Boot–based microservices architectures., • Azure Integration: Demonstrated experience building applications that integrate with Azure-native services, including Azure Key Vault for secrets management, Azure Storage APIs, and Azure Service Bus for event-driven messaging., • DevOps Mindset: Solid understanding of the end‑to‑end CI/CD lifecycle, with the ability to read, review, and contribute to Dockerfiles and GitHub Actions workflows as a developer who understands the delivery pipeline their code passes through., • API Mastery: Deep expertise in RESTful API design, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email delivery using SendGrid., • Testing Discipline: A strong, non‑negotiable commitment to automated unit and integration testing, with the ability to define and promote testing standards that can be adopted and maintained consistently across the wider team., • Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent practical experience. Relevant Microsoft Azure developer certifications are considered an advantage.

DV Cleared Backend Developer\n\nLocation: UK Wide\n\nClearance: DV clearance required\n\nSector: Defence & National Security\n\nRole Summary\n\nOur client is seeking DV cleared Backend Developers to support high impact Defence and Security programmes. You will design, build and operate secure, cloud‑native backend services that underpin mission‑critical national systems.\n\nThis is a hands on engineering role, focused on building robust APIs, services and data driven components within modern cloud and DevSecOps environments. You will work end to end - from shaping technical designs and delivering features through to improving reliability, resilience and performance in live operations.\n\nKey Responsibilities\n\nDesign and build backend services and APIs, delivering features end‑to‑end in collaboration with cross‑functional teams.\nDevelop cloud‑native and containerised applications using technologies such as Java (Spring Boot), Python (FastAPI), Node.js and modern datastores.\nBuild solutions within an Agile and DevSecOps environment, embedding security and quality throughout the delivery lifecycle.\nIntegrate backend services into CI/CD pipelines, supporting automated testing and deployment.\nEnsure systems are reliable, resilient and scalable, applying Site Reliability Engineering (SRE) principles.\nCollaborate closely with frontend developers, architects, DevOps engineers and client stakeholders.\nHelp clients and users understand technical trade‑offs and make informed product decisions.\nContribute to continuous improvement and engineering best practice across teams. \n\nRequired Skills & Experience\n\nDV security clearance is essential.\nProven experience as a backend or software engineer delivering production systems.\nStrong coding ability in Java, Python and/or JavaScript/TypeScript.\nSolid understanding of backend engineering fundamentals, design patterns and API design.\nExperience working in Agile teams (e.g. Scrum, Kanban).\nStrong communication skills and a collaborative mindset.Cloud & Engineering\n\nExperience building backend services on cloud platforms (AWS preferred).\nFamiliarity with microservices and containerisation.\nExperience with DevSecOps tooling (e.g. GitLab, Jenkins, Atlassian).\nUnderstanding of security best practices and OWASP principles.\nExperience with relational and NoSQL databases (e.g. PostgreSQL, Oracle, MongoDB) is beneficial

!! IMMEDIATE JOINERS !! Senior Java Software Developer Location: Bournemouth / Glasgow Work Mode: On-site Job Type: Full-time The Role We are looking for a Java Full Stack Developer who A Java Developer (2-5 years experience) designs, codes, tests, and maintains scalable Java applications, collaborating with teams, debugging issues, and using frameworks like Spring/Hibernate, focusing on clean, efficient, object-oriented code, participating in the full SDLC. You will be a key player in our agile squad, responsible for the end-to-end delivery of scalable web applications. What You’ll Do (Responsibilities) • End-to-End Development: Design and develop high-volume, low-latency applications for mission-critical systems., • Back-End Excellence: Write clean, maintainable code using Java and the Spring Boot ecosystem., • Front-End Innovation: Build responsive, user-friendly UI components using React, Angular, or Vue.js., • Database Management: Design and optimize schemas for relational (PostgreSQL/MySQL) and NoSQL databases., • API Design: Build and consume secure RESTful APIs to integrate with internal and third-party services., • Collaboration: Participate in code reviews, sprint planning, and daily stand-ups to ensure high-quality software delivery., • Strong understanding of Object-Oriented Programming (OOP) principles. What We’re Looking For (Requirements) • Experience: [Number] years of professional experience in Java-based software development., • Java Knowledge: Hands on experience of Core Java, Multithreading, and Spring Framework (Boot, Security, Data JPA)., • Modern Web Stack: Proficiency in HTML5, CSS3, and JavaScript/TypeScript., • Cloud & DevOps: Familiarity with AWS, Azure, or GCP and containerization tools like Docker/Kubernetes., • Tools: Expert knowledge of Git, Maven/Gradle, and CI/CD pipelines (Jenkins/GitLab CI). Nice-to-Haves • Experience with Microservices architecture., • Knowledge of Kafka or RabbitMQ., • Relevant AWS or Java certifications.

A fast-growing UK fintech bank is building the next generation of platforms that support underserved SMEs, helping power local economies through modern, scalable financial services. This role sits at the heart of its engineering function, shaping products that directly impact customers while driving technical excellence across a high-performing squad. Role Overview • Location: Milton Keynes (Once per month onsite /Flexible working available), • Package: Up-to 95,000 Basic, bonus scheme + benefits, • Industry: Fintech / Digital Banking What You’ll Be Doing • Leading the design and delivery of full stack features across backend and frontend systems within a cross-functional squad, • Building and maintaining Kotlin/Java Spring Boot microservices deployed as containerised applications on Azure, • Developing modern, accessible user interfaces using React and TypeScript, aligned to shared design systems, • Taking ownership of technical decisions, documenting approaches clearly through Architecture Decision Records (ADRs), • Improving system reliability by driving observability, SLOs, incident response practices, and operational excellence, • Enhancing CI/CD pipelines, testing strategies, and deployment workflows to improve developer experience, • Collaborating closely with Product and Design to shape solutions and ensure technical feasibility, • Ensuring secure, compliant, and performant systems aligned with regulatory expectations, • Mentoring engineers through code reviews, pairing, and technical guidance, while line managing junior team members, • Promoting effective use of AI-assisted development tools to improve speed and code quality responsibly Main Skills Needed • Strong experience with Kotlin or Java and Spring Boot microservices in production environments, • Solid frontend expertise using React and TypeScript with a focus on performance and accessibility, • Experience deploying and operating containerised services in cloud environments (Azure preferred), • Strong understanding of distributed systems, scalability, and system resilience, • Knowledge of secure coding practices, OWASP principles, and regulatory/compliance considerations, • Hands-on experience with CI/CD pipelines, observability tooling, and incident management, • Ability to write clear technical documentation including architectural decisions, • Experience mentoring engineers and contributing to team development and delivery capability, • Familiarity with AI-assisted development tools such as GitHub Copilot, with a strong focus on validation and quality What’s in It for You • Opportunity to shape modern, cloud-native systems in a high-growth fintech environment, • Significant ownership and autonomy within a fast-moving engineering culture, • Flexible and hybrid working arrangements, • Strong focus on professional development and technical growth, • Comprehensive benefits including private healthcare, pension, life assurance, and enhanced family leave, • Discretionary bonus scheme and regular team social activities, • The chance to work on meaningful problems supporting SMEs across the UK economy If you’re nodding along, let’s take the next step. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. By applying you are confirming you are happy to be added to the Addition Solutions mailing list regarding future suitable positions. You can opt out of this at any time simply by contacting one of our consultants.

Who We Are RE Partners is a technology consulting firm for those leaders that want to become champions by choosing a partner, not a staffing agency. RE Partners knows that a digital transformation is more than just technology. We have a successful track record of being a preferred vendor for Fortune 1000 companies by leveraging the talent of our global delivery organization and network of technology partners. This approach has helped a wide-ranging portfolio of global clients reach their goals. The firm's dedication to diversity has earned it the Women's Business Enterprise National Council (WBENC) certification as a Woman-Owned Business. RE Partners' current and future success is driven by the diverse experiences and cultures of our global organization. About the client Our client is the third-largest banking institution in the United States that is commonly cited as being too big to fail. We are looking for a highly skilled Principal Full Stack Developer with expertise in Java (Backend) and React (Frontend) to join our team. with strong LLM experience (Claude preferred). Key Responsibilities: • Develop and maintain backend services using Java, with a strong focus on server-side engineering, • Design and implement scalable, secure, and high-performance APIs, • Lead backend development initiatives and enforce best coding practices, • Contribute to the React frontend, ensuring seamless integration with backend systems, • Work hands-on with LLM/AI technologies (Claude preferred), • Mentor UI developers and guide frontend architecture decisions, • Collaborate with business stakeholders to translate requirements into technical solutions, • Participate in code reviews, architecture discussions, and performance optimization Requirements: • Strong backend development experience with Java (preferably Spring Boot), • Deep expertise in server-side architecture and API design/development, • Proficiency in React for frontend development, • Hands-on experience with LLM/AI tools (e.g., Claude or similar) and integrating AI into applications, • Experience mentoring UI developers and working in cross-functional teams, • Solid understanding of databases and query optimization Preferred Qualifications • Exposure to cloud platforms (AWS, Azure, or GCP), • Experience with CI/CD pipelines and DevOps practices, • Strong problem-solving skills with the ability to operate in a fast-paced environment

Technical Lead - Active SC, Java Up to £550 per day (Inside IR35) London / Remote 3 months initially My client is an instantly recognisable consultancy who urgently requires a Technical Lead/Lead Developer, with Active Security Clearance (SC), and with proven team lead experience to join a business-critical programme. Key Requirements: • Proven experience working as a Lead Java Developer within the public sector, • Demonstrable team lead / leadership experience - ability to guide developers, support technical decision making, and ensure delivery standards, • Active Security Clearance (SC), • Expertise in a range of technologies, including Java 8 and 17+, Spring / Spring Boot, React / HTML, • AWS Cloud Services experience, • Technical hands-on experience with Terraform, Kibana, Apache Camel, • Linux in a containerised environment Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for t...

Role Title: Java Developer Duration: 12 month contract Location: Remote Rate: £381 p/d via umbrella inside IR35 Clearance required: Active SC Clearance ideally held within the public sector Role purpose / summary Core Skills: Backend: Java, Spring Boot, SQL / Report Writing Cloud: AWS,

Join a dynamic and innovative technology consultancy as a Java Developer with SC Clearance. In this role, you will design and implement robust back-end systems using Java and Spring Boot while collaborating with a talented team to deliver exceptional value to clients.

A global consultancy firm is seeking a Java Developer to join their team in Leicester, Manchester, or London. Candidates should have 2-5 years of experience in Java and J2EE technologies with a good understanding of Agile methodologies.

A leading technology consulting firm in London is looking for a Full-Stack Developer. The role involves designing and developing web, eCommerce, and mobile solutions, with a focus on Liferay DXP and modern technologies like Java, Spring Boot, and React.

A tech company in London is seeking an experienced Java Developer to join their team. The ideal candidate has over 5 years of experience in Java development, strong knowledge of OOP principles, and familiarity with frameworks like Spring.

Backend – at least 3 years experience working as a backend developer on 1 or more large commercial projects (Node or JVM based frameworks). Demonstrating solid knowledge of modern architecture patterns, including React fundamentals, REST-based microservices (JVM Spring or Node.

Looking for a Senior Java Developer that has worked with Kotlin. The ideal candidate should be passionate about clean code and scalable solutions. This opportunity will allow you to design robust Microservices Architecture, within an automated data-heavy environment. • This will be an 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 etc, • Strong understanding of clean code principles, • Experience working with AWS Cloud, • Kotlin experience (preferred)

Java Developer Active SC clearance required Inside IR35 Location: Remote UK Role Overview We are seeking a skilled SC Cleared Java Developer to join our team. The ideal candidate will have a strong background in software development, specifically in Java and related technologies. You will be responsible for designing, developing, and maintaining robust applications that meet our business needs while collaborating with cross-functional teams in an agile environment. Responsibilities - Develop and maintain high-quality Java applications using Spring Boot. - Design and manage databases, preferably using Postgres or other relational SQL databases. - Utilise Docker for containerization and deployment of applications. - Implement test-driven development practises using Junit, Mockito, or similar testing libraries. - Participate in CI/CD processes using Jenkins or similar pipeline tooling to ensure smooth integration and deployment. - Work collaboratively within agile teams, contributing to discussions and decision-making processes. - Collaborate with colleagues from various disciplines to deliver comprehensive solutions. Qualifications Essential Skills/Experience: - Proficiency in Java, particularly with Spring Boot framework. - Experience with Postgres or other relational SQL databases. - Familiarity with Docker for application deployment. - Strong understanding of test-driven development and experience with Junit and Mockito or similar libraries. - Experience with CI/CD practises, particularly using Jenkins or similar tools. - Ability to work effectively in agile teams and collaborate with cross-functional colleagues. Desirable Skills: - Knowledge of API Specification using Swagger OpenAPI. - Experience with Gradle for project management. - Familiarity with Liquibase for database version control. - Understanding of Kafka for messaging services. - Experience with front-end technologies such as React and Typescript

Java Engineer Salary to £ 45 k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency in the UK with no more than a 3 month break outside the UK. This company is a Workflow & AI Orchestration Specialist. They're on a mission to modernise how public sector organisations manage casework, derive insight from data and deliver citizen services. Theyre growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for aJava Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts, and designers to translate workflows into elegant, maintainable code. Youll play a key part in defining technical standards, optimising runtime performance, and mentoring less- experienced engineers in workflow-centric delivery. This is an ideal role for someone who enjoys solving complex process problems through clean code, automation, and modern engineering practices. The role involves visiting client sites; the company will cover travel expenses. Frequency is uncertain but candidates should be comfortable with that being 2-3 days per week. Client sites could be anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service designers to refine and iterate business processes Develop and maintain automated test suites, CI/CD pipelines, and containerised deployments Optimise Camunda engine performance and monitor workflow metrics for production environments Participate in code reviews, peer testing, and technical design discussions Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided in the UK for the past 5 years) and prepared to go through UK SC Security Clearance E xperience in Java software engineering and object-oriented design Spring (Boot) experience Experience with REST APIs, and microservice architectures Knowledge of Docker and Kubernetes for containerisation and orchestration Proficiency in Git, CI/CD pipelines, and automated testing frameworks Understanding of event-driven design and message brokers (e.g. Kafka, RabbitMQ) Good knowledge of security, authentication, and integration patterns for enterprise systems Experience working in agile teams within digital transformation or automation programmes A willingness to learn BPMN and Camunda tooling Some exposure to process automation or microservice orchestration Desirable Experience with Camunda 8 (Zeebe) clusters and Operate/Tasklist components Experience implementing solutions using Camunda 7 or 8 (BPMN/DMN) Familiarity with Camunda connectors, external task workers, and scripting extensions Exposure to cloud platforms (AWS, Azure, GCP) and infrastructure-as-code (Terraform, Helm) Experience integrating process automation with case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National and able to achieve SC or DV clearance. i.e. you have at least 5 years residency in the UK with no more than a 3 month break outside the UK. NB: for non-UK Citizens; we cannot accept applications from anyone requiring sponsorship (now or in the future) for UK permanent employment status. If you are utilising a work visa this must allow you to work in the UK unrestricted for at least the next 5 years. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid junior jnr TPBN1_UKTJ

Senior FullStack Developer Duration: 4 months Location: Remote £600 - £770 per day Inside IR35 - Umbrella only Active SC clearance or eligibility to obtain it Our client is seeking an experienced Senior Cloud FullStack Developer to join their dynamic team on a remote 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 principles and design Patterns Familiarity with front-end development and integration using HTML and JavaScript Experience with Jenkins and modern CI/CD practices Proficiency in AWS services and infrastructure-as-code using Terraform Strong experience with GitHub for version control and automated workflows (e.g., GitHub Actions) Working knowledge of Docker for containerization Proficiency in Python scriptingRequired Soft Skills: Soft skills are just as important as technical skills for this role - it is critical to have the right attitude and characteristics to be successful.This requires: Strong communication and collaboration skills - critical to build good relationships and to work well with people Collaboration - needs to be a team player and work closely and well with many different people both inside and outside the team Enthusiastic and engaged - positive attitude Pro-active - do not expect to be told what to do - will need a level of drive and the ability to work without needing constant support Handle ambiguity and changeIf you're passionate about cloud-native development and want to contribute to innovative projects, we'd love to hear from you. Apply now to join a forward-thinking organisation that values your skills and initiative

In this developer role, you will: Provides senior-level system analysis, design, development, and implementation of applications and databases, including third-party product integration. Translates technical specifications into code for complex projects, writes programs, develops code, tests artifacts, and produces reports, ensuring automation support. Elevates code to development, test, and production environments on schedule, provides production support, and submits change control requests with documentation, including peer reviews. Understands software development methodology and architecture standards, trains and mentors less experienced staff, and resolves elevated issues. Participates in design, code, and test inspections throughout the lifecycle, explains technical considerations at meetings, and performs systems analysis activities. Understands client business functions and technology needs, with a broad knowledge of Vanguard's technologies, tools, and applications. Interfaces with cross-functional team members and communicates system issues at the appropriate technical level for each audience. Works with business-facing IT teams to deliver new solutions, reviews functional specifications, translates them into program specifications, liaises with end users for acceptance testing, and provides 3rd line support. Builds thought leadership and expertise in best-practice solution design and implementation. Manages time effectively across multiple projects with competing business demands and priorities. What it takes: Experience in Test Driven Development and strong knowledge of Java (17 or higher), Spring Boot, Spring MVC, RESTFul API implementation, GraphQL, and open-source frameworks Experience in software development using cloud technologies (AWS preferred) Knowledge of build/deployment/testing/logging/monitoring tools and frameworks like Maven, Cucumber, Bamboo, GitHub, Claude Code / Bedrock and Splunk. Understanding of investment management domain with strong analytical, problem solving and communication skills. Ability to work well with both business managers and operations team, and ability to perform well under pressure, and deliver to tight deadlines. Knowledge of agile software development process/practices and familiarly with JIRA, Confluence, and other tools. Desirable - Knowledge and experience in Python programming, regulatory / transaction reporting domain knowledge. Languages Python & Java.AWS technologies Lambda (Python 3.7 and above), S3 buckets Step functions SNS/SQS GraphQL IAM Roles CloudWatch/CloudTrail CloudFormation AppSync Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Software Engineer / Developer (Java Kafka API) London / WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joining a global technology consultancy. What's in it for you: Salary to £90k Hybrid working (x2 days WFH per week) Pension, Life Assurance, Income Protection Private medical care for you and your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Software Engineer you will design, develop and deliver a range of transformational projects for clients, mainly within the financial services sector and with a focus on Kafka messaging, migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments. You'll join a collaborative team with a focus on engineering best practice and continuous improvement of client systems; you will have lots of business and client exposure and continual learning and development opportunities. Location / WFH: There's a hybrid work from home policy with three days a week in the London, City office (or at client sites), you'll join a friendly, diverse, upbeat team. About you : You have Java development skills including multi-threading and concurrency You have experience with Spring Boot and microservices environments You have experience with Kafka (or similar messaging tools) You have a good knowledge of REST APIs You have a good understanding of AWS You have a thorough understanding of software development and Computer Science fundamentals such as Object Oriented Programming, Data Structures and Design Patterns You are familiar with DevOps, CI/CD pipelines You're collaborative, enjoy problem solving and interacting with clients Apply now to find out more about this Software Engineer / Developer (Java Kafka Spring Boot AWS microservices) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values. TPBN1_UKTJ

In this developer role, you will: Provides senior-level system analysis, design, development, and implementation of applications and databases, including third-party product integration. Translates technical specifications into code for complex projects, writes programs, develops code, tests artifacts, and produces reports, ensuring automation support. Elevates code to development, test, and production environments on schedule, provides production support, and submits change control requests with documentation, including peer reviews. Understands software development methodology and architecture standards, trains and mentors less experienced staff, and resolves elevated issues. Participates in design, code, and test inspections throughout the lifecycle, explains technical considerations at meetings, and performs systems analysis activities. Understands client business functions and technology needs, with a broad knowledge of Vanguard's technologies, tools, and applications. Interfaces with cross-functional team members and communicates system issues at the appropriate technical level for each audience. Works with business-facing IT teams to deliver new solutions, reviews functional specifications, translates them into program specifications, liaises with end users for acceptance testing, and provides 3rd line support. Builds thought leadership and expertise in best-practice solution design and implementation. Manages time effectively across multiple projects with competing business demands and priorities. What it takes: Experience in Test Driven Development and strong knowledge of Java (17 or higher), Spring Boot, Spring MVC, RESTFul API implementation, GraphQL, and open-source frameworks Experience in software development using cloud technologies (AWS preferred) Knowledge of build/deployment/testing/logging/monitoring tools and frameworks like Maven, Cucumber, Bamboo, GitHub, Claude Code / Bedrock and Splunk. Understanding of investment management domain with strong analytical, problem solving and communication skills. Ability to work well with both business managers and operations team, and ability to perform well under pressure, and deliver to tight deadlines. Knowledge of agile software development process/practices and familiarly with JIRA, Confluence, and other tools. Desirable - Knowledge and experience in Python programming, regulatory / transaction reporting domain knowledge. Languages Python & Java.AWS technologies Lambda (Python 3.7 and above), S3 buckets Step functions SNS/SQS GraphQL IAM Roles CloudWatch/CloudTrail CloudFormation AppSync Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk TPBN1_UKTJ