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Mulesoft Developer Hybrid working 2 days per week onsite in Horley We are seeking a highly skilled Mulesoft Engineer with strong expertise to design, secure, and optimise enterprise-grade integration solutions. In this role, you will work across complex API ecosystems, ensuring robust connectivity, high performance, and secure data exchange between critical business systems. You will be responsible for developing MuleSoft applications, designing flows, applying security best practices, and delivering high-quality integrations using modern engineering principles. You'll also contribute to CI/CD pipeline creation, support API policy enforcement, and collaborate across teams to shape resilient, scalable integration architectures. This position is ideal for an engineer with a passion for API-led connectivity, problem-solving, and building secure, maintainable solutions. Key Skills: • Strong experience with SOAP & REST APIs, • Deep understanding of OAuth 2.0, JWT, IP whitelisting, and API security best practices, • Experience implementing policy enforcement, threat protection & encryption, • Hands-on expertise with MuleSoft & Anypoint Studio, • Effective use of MUnit for API testing, • Broad knowledge of MuleSoft connectors, flows & event processing, • Proficiency with DataWeave and functional programming, • Experience with Azure DevOps CI/CD pipelines, • Solid understanding of sync/async processing models, • Strong analytical and problem-solving skillsMulesoft Developer Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted. Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. Referrals increase your chances of interviewing at Client Server by 2x. This range is provided by Client Server.

This range is provided by Client Server. Direct message the job poster from Client Server. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn.

Company Description Ready to join a team that's leading the way in reshaping the future of insurance? Here at esure Group, we are on a mission to revolutionise insurance for good! We’ve been providing Home and Motor Insurance since 2000, with over 2 million customers trusting us to keep them covered through our esure and Sheilas’ Wheels brands. With a bold dedication for digital innovation, we're transforming the way the industry operates and putting customers at the heart of everything we do. Having completed our recent multi-year digital transformation, we’re now leveraging advanced technology and data-driven insights alongside exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Job Description We are currently recruiting for a QA Engineer (Automation) to join our wider Digital & Technology team at esure. You’ll play a key role in delivering high‑quality, reliable software solutions by driving automation excellence, embedding a quality‑first mindset, and supporting our ongoing digital transformation. What you’ll do: Design, develop and maintain automated test suites using Java, Selenium WebDriver and Playwright Build and execute automated and manual tests for APIs, microservices and UI journeys Create and own end‑to‑end test strategies, plans and executable BDD specifications Validate event‑driven message flows using Kafka Support continuous integration and delivery pipelines in Jenkins, ensuring high-quality releases Collaborate closely within an Agile squad to deliver reliable, scalable software Drive continuous improvement across QA processes, automation frameworks and tooling Qualifications What we’d love you to bring: Strong experience in Java and building automation frameworks Expertise in API testing (RESTful services) and service‑level automation Hands‑on experience with Selenium WebDriver, Playwright, and solid working knowledge of TypeScript Experience with GitHub (branching strategies, code reviews, PRs) Exposure to cloud environments, ideally AWS, and containerised/Kubernetes-based systems Understanding of Kafka, microservices architecture and distributed systems testing Experience working in BDD (e.g., Cucumber) and Agile/Scrum environments Strong collaboration, communication and problem‑solving skills Additional Information What’s in it for you?: Competitive salary that reflects your skills, experience and potential. Discretionary bonus scheme that recognises your hard work and contributions to esure’s success. 25 days annual leave, plus 8 flexible days and the ability to buy and sell further holiday. Our flexible benefits platform is loaded with perks to choose from, so you can build a personal toolkit to support your health, wellbeing, lifestyle, and finances. Company funded private medical insurance for qualifying colleagues. Fantastic discounts on our insurance products! 50% off for yourself and spouse/partner and 10% off for direct family members. We’ll elevate your career with hands-on training, mentoring, access to our exclusive academies, regular career conversations, and expert partner resources. Driving good in the world couldn’t be more important to us. Our colleagues can use 2 volunteering days per year to support their local communities. Join our internal networks and communities to connect, learn, and share ideas with likeminded colleagues. We’re a proud supporter of the ABI’s ‘Make Flexible Work’ campaign and welcome you to ask about the flexibility you need. Our hybrid working approach also puts you in the driving seat of how and where you do your best work. And much more; See a full overview of our benefits here

A great new permanent opportunity to for an experienced Middleware, MuleSoft Developer to join a busy and growing team and company. The role is to develop and support software applications and integrations, working as part of a Software Development team to deliver high-quality solutions. You will ideally be a mid-senior level Developer that has experience of programming within an SME sized organisation and looking to expand your skills and career further. You will be adept in working with MuleSoft, and you will have the opportunity to create a MuleSoft community within the development team. Mentoring of junior and mid-level members of the team and driving the technology forward across the business. You will be designing and developing software to a high standard and optimizing integration layers that allow different systems, applications and services to communicate. Secure all API’s and endpoints and apply API security best practices. Automate build and deployment pipelines for middleware solutions. Create unit test for all API’s and integrations, ensuring that these tests are run as part of the build pipelines. Deploy middleware services to cloud and or self-hosted environments. This is an exciting time to join a growing business and to work on some exciting projects. There is hybrid working available and you would be required to attend the office in Surrey, one day per week for meetings and training. A positive, friendly and supporting working environment, a competitive salary and fantastic company benefits on offer. Skills/experience/attributes: • Around 3-5 years’ minimum experience as a Software Developer, • Degree educated, • MuleSoft experience is essential (RTF – Runtime Fabric), • Solid experience of developing solutions in MuleSoft and MuleSoft Anypoint Studio, • Effective use of MUnit for unit testing Mule API’s, • Extensive knowledge of commonly user MuleSoft connectors, • Any knowledge of C#, .Net is desirable, • Thorough understanding of restful API’s and SOAP, • Experience of and enjoys mentoring of colleagues, happy to share knowledge, • Experience of Data Weave is essential, • Familiarity with Jira and Confluence is desirable, • Strong problem and analytical skills, • Strong understanding of software engineering fundamentals, • Good listener and can understand the needs of customers and colleagues, • Precise and appropriate written communication skills, • Ability to present information clearly and in an engaging way, • Articulate, professional and clear verbal and written communication skills

Senior Java Developer (AWS, API) - Hybrid - Sussex. You will work across modern cloud-native architectures, contribute to API and microservices development, and help drive best practices across the engineering organisation. Build and optimise RESTful APIs and contribute to GraphQL service developmen

System Analyst / Architect - API workflow. System Analyst / Architect - API & Workflow. You'll take ownership of workflow and API architecture, ensuring seamless integration, performance, and scalability across our platforms.

We’re looking for an API Product Sales Executive to drive adoption of our payments-as-a-service offering with enterprise customers.

We’re looking for an API Product Sales Executive to drive adoption of our payments-as-a-service offering with enterprise customers.

On the backend, you will develop and extend FastAPI services, design clean REST APIs, and work with PostgreSQL and SQLAlchemy to manage structured data. Solid backend experience with Python and hands‑on work with FastAPI. Experience designing and building REST APIs.

A leading compliance provider is seeking two Integration Managers for a hybrid role based in London.The ideal candidates will lead client integrations, assist commercial teams, and provide support post-go-live.Qualifications include a degree in information/computer science and over 2 years of integr

This 6-month contract position focuses on developing backend services, building scalable APIs, and collaborating with product and frontend teams.

A fast-growing technology firm in the UK is seeking a Senior Offensive Security Analyst to focus on API security and perform penetration testing on web applications.

The ideal candidate will have extensive experience in payments, API design, and agile processes.

A leading open source software company is looking for a talented software developer to create new features and improve the Landscape codebase.The role involves remote collaboration with a global team, committing to high-quality code and automated testing, and requires strong proficiency in Python an

Responsibilities include leading the design of integration solutions, overseeing end-to-end data flow, and implementing microservices and API-led connectivity.

The ideal candidate should have a strong command of Ruby on Rails and its nuances, along with the ability to work on Web APIs and understand object-oriented programming.

A leading telecommunications company in the UK is looking for a Senior Integration Engineer to oversee the integration backbone.The role involves developing complex patterns using TIBCO BWCE/BW6 and Node.Candidates should have deep expertise in TIBCO products and substantial experience with Kubernet

A high-growth SaaS company is seeking a Senior Manager – Cloud Talent Acquisition to lead backend development using PHP/Symfony.The role involves collaborating with diverse teams to deliver efficient solutions and mentoring fellow engineers.Ideal candidates will have experience with TypeScript lan

A leading accounting transformation platform is seeking an Integrations Solutions Consultant to drive customer understanding of their integration ecosystem.You will engage with clients to provide insights on technical components and best practices while collaborating with internal teams.Ideal candid

A modern tech firm is seeking a proactive PHP Developer Intern to join their development team in Greater London.This role offers a fantastic opportunity to gain real-world experience in backend and web application development using PHP.Interns will collaborate with experienced developers on live pro

Key responsibilities include designing identity flows, developing RESTful APIs, and automating identity configurations.

Architect and implement public trading APIs (REST, WebSocket, and FIX) in Rust. Design and implement authentication and authorization for public trading APIs. Translate trading and product requirements into clean API designs and reliable backend flows.

A global employment solutions company is hiring a Senior Backend Engineer specializing in Elixir.Candidates should have substantial backend engineering experience, particularly with Elixir, and a strong understanding of Postgres and CI/CD processes.This role offers a flexible, fully remote work envi

You will guide the integration landscape, ensure all dependencies are communicated, and develop an effective strategy for APIs and integration services.

The role includes writing maintainable Python code, supporting data migrations, and building APIs for integrations.

Define and execute the API Tooling roadmap, prioritising initiatives that make our APIs easier to onboard, use, and test. As the Senior Product Manager for API Tooling at Wise Platform, you will own the roadmap and execution for the tools and infrastructure that make our APIs easy to adopt and integ

A leading energy solutions provider in Greater London is seeking an experienced API Developer to join their Asset Sustainability Group. This role focuses on developing and maintaining APIs that facilitate integration for internal and third-party applications.

The ideal candidate requires strong API integration experience, collaboration skills, and the capacity to work with large enterprise customers.

A technology firm in Greater London is looking for a Technical Writer to join their Content and Comms team.In this hybrid role, you will create and maintain technical documentation, ensuring clarity and accessibility for developers and operational teams.Ideal candidates should have a strong writing

A UK recruitment consultancy is seeking a GraphQL Full Stack Engineer to design and implement high-performing APIs in TypeScript and Node. It's a great opportunity for those interested in cloud-native environments and API strategy.

A global sports trading firm in London is seeking a motivated C# Developer / Software Engineer to work on complex systems, offering a competitive salary up to £90k with substantial bonuses.Ideal candidates will possess strong SQL knowledge, a solid understanding of OOP and design patterns, and exce

A UK educational institution is seeking an Application Support Analyst to join their MIS team.This role involves providing 1st and 2nd line support, developing SQL queries, and assisting with system integrations using Python and PowerShell.Applicants should have a minimum of 3 years of experience wi

Responsible for implementation and delivery of new server side components, micro services, web API, and enhancements to the BestX product. Responsible for implementation and delivery of new server side components, micro services, web API, and enhancements to the BestX product. Extensive experience i

The role involves designing and developing scalable backend services for an enterprise discovery application, focusing on building robust APIs and ensuring the reliability and security of backend systems.

This role involves managing API integrations, ensuring effective communication, and aligning various teams to drive project success.

A healthcare tech startup is seeking a full-stack engineer to join their remote team.In this role, you will develop customer-facing products that improve healthcare access and affordability.You don't need prior healthcare experience, but a strong grasp of full-stack development and an eagerness to s

A leading healthcare technology company in Greater London is seeking a skilled developer to focus on frontend application development and ensure the integration of backend APIs.

Analyse customers needs and advise how they can use our APIs to better meet them. You will help our customers by addressing their current questions and suggesting ways to use our APIs to build the best travel experience for their users. Experience integrating APIs, debugging integration issues, writ

Candidates should possess 7+ years of project management experience in a technical environment, a Bachelor's degree, and proven skills in API integrations.

A leading financial technology company is seeking a Product Director to lead product strategy and development, focusing on embedding payments in services.The ideal candidate will have a strong background in product management, technical development, and leading high-performing teams.This role offers

The successful candidate will have experience in technical documentation, an understanding of APIs, and the ability to simplify complex concepts.

A technology company in Greater London is seeking a Software Engineer to craft unified APIs for various platforms.

NET Developers to design and implement secure, scalable API services. This role focuses on architecture-led API engineering in a production-grade environment, requiring experience with.

A leading API infrastructure company in the UK is seeking polyglots to tackle developer-focused products.

A leading energy solutions provider is seeking an API Developer to architect, build, and maintain APIs for various applications. Experience with RESTful APIs and modern development practices is essential.