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I am a technology professional with diverse experience in providing Technology Solutions for Government, Banking/Predictive Analysis, Healthcare and Public Service, Community Services, Human Resources, Communications and Manufacturing Industries. Proficient in requirements gathering, planning, analysis, design, coding/development and support/maintenance for web applications with experiences in the following technologies: J2EE, JSF, PrimeFaces, AJAX, JSP, EJB,, OAuth, GWT, ReactJS, VueJS, Angular, NestJS, NextJS, NodeJS, Typescript, JavaScript, JDBC, REST/SOAP, Microservices, Spring (Data, Boot, REST, MVC, AOP), Hibernate, MySQL, Oracle 12C, MSSQL, Docker, Kubernetes, MongoDB, CloudantDB NoSQL, AWS, Claude, CoPilot. Payment gateways integration: Stripe, PayPal Studied BS Computer Science and Masters of Science Teaching in Computer Science

I build and fix payment systems that cannot afford to break. I have shipped a production payment gateway on Adyen (split payments, per-transaction commission) and led multi-currency checkout on Stripe's FX Quote API, in Java and Spring Boot. Fifteen years of backend and full-stack engineering, six of them leading engineering at a UK SaaS booking platform serving 1,500+ businesses with 45M+ appointments booked. I led a team of 7 while writing production code every day, so you get someone who designs the solution and then actually builds it. What I am usually hired for: • Payment gateway integration and migration (Stripe, Adyen) — checkout, webhooks, idempotency, split payments, multi-currency and FX • Java / Spring Boot backend work — REST APIs, microservices, event-driven architecture, performance and reliability fixes • Rescue work — unstable releases, slow reporting queries, systems that fall over under real load. At Savvy I moved analytics off MongoDB into a rebuildable PostgreSQL read model and ended recurring outages. • AI features in real products — content generation, summarisation, voice-to-text on OpenAI and AWS Bedrock, plus AI- assisted delivery with Claude Code Stack: Java, Spring Boot, Spring Cloud, REST APIs, microservices, PostgreSQL, MongoDB, AWS, Docker, Kubernetes, React, Next.js. I work UK and EU hours comfortably and communicate in clear, non-technical language when you need it. If you are unsure how to scope the work, send me the problem and I will tell you honestly whether I am the right person for it.

I’m a developer and a graphic designer molded by experience in building websites for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. I'm capable of: - Full Stack Web Developer - Java Developer/Programmer - Logo Designer - Graphic Designer - Infographic Artist - Video Editing - 3D Modeling

8 years experience in Java Web Development

Claude is a software engineer that has 9+ years of solid experience in java enterprise development working in wide array of industries such as Insurance, Telecommunications, Utilities, Banking. Claude is highly skilled in java and other related web/desktop technologies but not limited to: --- Java EE, Java 8, Spring Boot, Spring Security, Microservices, Reactive Java, Hibernate/JPA, Kafka, RabbitMQ, Restful/SOAP APIs (I have written & supported numerous APIs), MySQL/MsSQL, Servlets & JSP, Jaxb, Junit/Mockito, JavaFX, Java Swing, Unix/Linux shell scripting, Javascript Other tools, practices and related technologies include: --- Maven, Gradle, Docker, Kubernetes, GIT/SVN --- Oracle SQL developer/Workbench/DBeaver, Bamboo, Sourcetree, Postman, SoapUI --- IntelliJ/Eclipse/Spring Tool Suite --- Jboss, Glassfish, IBM WebSphere Application Server --- Agile, DevOps, Jira, AWS (Certified developer associate), Microsoft Azure, Git/Gitlab, incident management (ITSM), serviceNow (snow)

Results-driven Senior Java Backend Developer with 5+ years of experience, specializing in complex FinTech projects and banking integrations. My key strength is the ability to oversee the entire project lifecycle — from rapid MVP development for hypothesis testing to building scalable, fault-tolerant, and secure systems designed for high load. Proficient in the full modern backend stack, with deep expertise in Spring Boot/Cloud, PostgreSQL optimization, caching (Redis), and asynchronous event processing. Actively contribute to DevOps practices by setting up CI/CD pipelines and deploying services in Kubernetes. Ready to take end-to-end technical ownership of critical system components