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💼 8+ Years Building Production-Grade Java Backends for Enterprise & Startups 🤝 Worked with Macy's · Backcountry · Agrobank · Dubai Islamic Bank 🛠️ Spring Boot · Microservices · AWS · PostgreSQL · Docker · React · Full-Stack When It Counts I'm a Senior Java Backend Engineer specializing in building secure, scalable, production-grade systems using Java, Spring Boot, and microservices architecture for enterprise eCommerce, digital banking, and government platforms across the US and UAE. I've built systems serving millions of users at Macy's, delivered nationally regulated banking infrastructure at Agrobank. Every system designed with security, scalability, and long-term maintainability at the core. When the project demands it, I extend into the full stack with React, Next.js, and TypeScript delivering end-to-end without losing the backend focus. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 Backend (Core): Java · Spring Boot · Spring Security · Spring Cloud · Spring Data JPA · Hibernate · Microservices · REST API · GraphQL · OAuth2 · JWT · Apache Kafka · RabbitMQ · Maven · Gradle · Lombok · Liquibase · Flyway Frontend: React.js · Next.js · TypeScript · JavaScript · Redux · Zustand · React Query · Axios · Tailwind CSS · Material UI · Node.js · Vite Databases: PostgreSQL · MySQL · MongoDB · Redis · Firebase Cloud & DevOps: AWS (EC2, S3, SNS) · Azure · Docker · Kubernetes · CI/CD · GitHub Actions Testing & Docs: JUnit · Jest · Postman · Swagger 𝐖𝐡𝐚𝐭 𝐈'𝐯𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝗠𝗮𝗰𝘆'𝘀 | eCommerce Platform Built Java Spring Boot microservices for catalog, promotions, and cart operations serving tens of millions of shoppers annually. Optimized performance through Redis caching and CDN integration, reducing response times across high-traffic retail events including Black Friday. 𝗕𝗮𝗰𝗸𝗰𝗼𝘂𝗻𝘁𝗿𝘆 | Online Retail Platform Developed Java backend services for product catalog, inventory management, and order processing at scale. Implemented Redis caching and CDN integration that cut API response times during peak retail traffic. 𝗔𝗴𝗿𝗼𝗯𝗮𝗻𝗸| Digital Banking Platform Architected the backend microservices layer for a nationally regulated digital banking platform using Java, Spring Boot, and PostgreSQL covering account management, transactions, and financial reporting under strict compliance requirements. 𝗗𝘂𝗯𝗮𝗶 𝗜𝘀𝗹𝗮𝗺𝗶𝗰 𝗕𝗮𝗻𝗸 | Investor Relations Portal Built secure Java Spring Boot backend APIs for one of the world's largest Islamic banks. Delivered financial reporting endpoints with compliance-grade data security for institutional stakeholders. 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤 🔹 Architecture designed before a single line of code is written 🔹 Clean, maintainable Java with documentation built in 🔹 Security and scalability from day one, not retrofitted later 🔹 Full ownership from architecture through deployment 🔹 Proactive updates and clear communication throughout I work with modern development tooling and productivity practices to maintain high output and code quality, with rigorous human review and production standards applied to every deliverable, no exceptions. 🚀 𝐋𝐞𝐭'𝐬 𝐓𝐚𝐥𝐤 𝐀𝐛𝐨𝐮𝐭 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐣𝐞𝐜𝐭: Whether you're building a Java backend from scratch, scaling a system that's hitting its limits, or need a full-stack engineer who leads with architecture, I'm here to make it production-ready. Send me a message and let's get started.

Hello there! My name is Yurii and I am a certified Google Cloud Architect and Engineer passionate in Cloud development and Java. I have more than 10 years of commercial enterprise development experience in Java working as a Senior Java Developer and leading a small but efficient team. During my career, I had developed multiple services and applications from desktop apps to huge standalone web applications and micro-service-based platforms for image processing, studying, etc. A brief summary of my expertise could be found below. Programming Languages: Java, JavaScript, TypeScript, Python Main Technologies: Java SE, Java EE, Spring, Hibernate, JSP, Servlets, AspectJ, AngularJS, Django, Flask Testing frameworks: JUnit, Mockito, Spock, Geb, Selenium, PowerMock IDE: Eclipse, NetBeans, IDEA Application servers: Tomcat, WebLogic, Glassfish, Jetty OS: Windows, UNIX DBMS: Oracle, Apache Derby, MySQL, SQLite Build Tools: Maven, Ant, ivy, gradle Version Control System: Subversion, git Management Tools: JIRA, Confluence, Gerrit, ZenHub, GitHub Additional skills: technical documentation writing, knowledge transferring CI/CD: Jenkins

More than 6 last years I've been developing web applications. I have strong PHP (plain PHP, Kohana, Zend Framework, Wordpress, Joomla, Moodle, eyeOS etc), MySQL, Javascript(jQuery/AJAX) experience. Also I have Java and mobile application developement for Google Android skills, experience in Linux administration, software and database architecturing, project management, code and database optimization, SVG, Git, SVN, Facebook API, Twitter API, Google APIs, jQuery Mobile, RegEx, Smarty. If your project requires some other technology - this is no problem for me, and if necessary I'm happy to investigate your project and give you feedback how to improve it. So, if you are looking for reliable, experienced and responsibler web programmer, who is ready to show creativity and initiative, and high quality code is something that makes sence for you - I'm the person you are looking for!

Over the last 15 years, I have developed a wide range of applications using Java technologies. Spring / Spring Boot, Hibernate JSP, JSF, Apache Wicket, Apache Struts HTML.CSS, JavaScript, jquery, mySql, postgreSQL, Oracle. My skills are confirmed by certifications: VMWare Spring Certified Profesional OCP (Oracle Certified Professional Java SE 17) SCJP (Sun Certified Java Programmer) SCWCD (Sun Certified Web Component Developer).

I specialize in automating and optimizing your core business processes, particularly across sales and finance. My focus is on connecting critical platforms like your CRM (HubSpot/Pipedrive) with finance software (QuickBooks/XERO), and any other API-enabled software you rely on. Having automated entire departments in my own ventures and worked with global giants like Bosch & Siemens, I empower businesses to achieve similar efficiencies, saving hundreds of hours and significantly cutting costs. ——— Longer version ——— I'm a software engineer with a master's in economics and deep business expertise, specializing in Sales & Finance automation and all kinds of software integrations. Before automating entire departments (sales, finance, recruitment) in my own businesses and cutting costs by up to 70%, I led software development for companies ranging from small North American family businesses to global giants like Bosch & Siemens. This hands-on experience allows me to design solutions that are not just technically sound but strategically aligned with your business goals. I don't just "connect apps"; I create lean, reliable, and scalable systems built to grow with your team. I've developed a large library of automation blueprints that allow me to quickly adapt solutions for your exact needs. My Core Focus Areas: 📊 Optimizing CRM Data & Workflows: HubSpot migrations and integrations with finance and lead generation platforms; auto-triggered follow-up workflows based on stage or client behavior. 💰 Streamlining Financial Workflows: QuickBooks/XERO automation for invoicing, reconciliation, salary calculation, and payroll; API-based syncing with CRMs and payment systems. 🔗 Custom API Integrations: Syncing CRM data with finance, marketing, and operations tools. Multi-step processes with n8n that completely replace manual tasks. 🤖 AI for Operations: Implementing AI-backed email agents for enhanced productivity; virtual helpdesks; anomaly and error detection in financial data; automated transaction classification. 📈 Reporting & Dashboards: Automating reports and creating custom dashboards for real-time insights into cash flow and expenses. 🚦 "Human in the Loop" Flows: Adding approvals for sensitive operations to maintain control where needed. Looking to optimize your business processes? Let's connect and explore how we can transform your operations. 🚀

If we work, you can count on me. I: - ensure clear communication; - pay attention to details; - strive to deliver in the shortest timeframe. Top technologies I like and use often: Frontend - Redux, RTK, SWR, Apollo GraphQL Client - Next.js (App & Pages), CRA, React Router - CSS Modules, Tailwind CSS & UI, Headless UI - Storybook, Testing Library, Jest, MSW - PNPM, Yarn & Workspaces, Lerna, Nrwl Nx Backend: Node.js - NestJS (RESTful & GraphQL APIs) - TypeORM, Prisma - Apollo GraphQL Server Backend: Go (Golang) - PGX, GORM, GoRedis - Gorilla, Gin - Protocol Buffers (Protobuf), gRPC - Temporal Platform & Go SDK DevOps: Automation tools - Docker & Compose - GitHub Actions DevOps: Infrastructure - DBs: Redis, Postgres, Mongo, Neo4j - PaaS: DO, AWS, Heroku, GCP, Vercel, Appflow