• Own end-to-end development of a document conversion and interactive reporting platform across Java/Spring Boot services and a React/TypeScript application.

• Build Java 21 and Spring Boot 3 pipelines for PDF, Word, presentations, spreadsheets, HTML and text, including OCR-derived and multilingual/RTL content.

• Develop React 18/TypeScript workflows with Redux and Material UI for document reconstruction, analysis overlays, navigation, annotations, comments and PDF output.

• Define and maintain REST/JSON contracts between conversion and reporting applications, including text indexes, coordinates, media resources and analysis metadata.

• Improve reliability and performance through staged processing, payload/media optimization, lazy loading, caching, Micrometer and Prometheus metrics.

• Partner with client stakeholders from requirements clarification through acceptance; validate changes with JUnit, Jest/React Testing Library, contract tests, Playwright and visual regression checks.

Core stack: Java 21, Spring Boot 3, React 18, TypeScript, Redux, Material UI, REST APIs, MySQL, Cassandra, Apache PDFBox, Apache Tika, JUnit, Jest, Playwright, Gradle, Docker Compose, Micrometer, Prometheus, Git and Jira.

• Integrated PayPal and extended Stripe functionality to enhance the payment processing system.
• Developed and maintained a Spring Boot 3.x application with MySQL as the primary database.Worked in an Agile Scrum environment, participating in sprint planning, daily stand-ups, and retrospectives.
• Ensured high code quality by implementing comprehensive unit and integration tests.
• Contributed to frontend tasks using JavaScript, improving system interactivity and user experience.

• Led a team in the development of a custom payment system from scratch, integrating with multiple external services (e.g., banks, payment gateways).
• Spearheaded the microservices architecture project, utilizing Kafka, Spring Boot, Hibernate, and PostgreSQL to build scalable and resilient backend services.
• Collaborated with clients to gather requirements and ensure alignment with business goals, providing technical insights and project progress updates.
• Conducted code reviews, ensured adherence to coding standards, and played a key role in recruiting by conducting technical interviews.
• Managed project tasks and sprints using ClickUp within a Scrum environment, ensuring efficient delivery of features and timely resolution of issues.

• Contributed to an American e-commerce project, handling both backend and frontend development with technologies such as Java 8, Spring Boot, Vue.js, Hibernate, Thymeleaf, and Bootstrap.
• Developed and maintained critical system features, enhancing platform functionality, performance, and user experience.
• Coordinated with clients for requirements gathering, providing timely feedback and ensuring that deliverables met expectations.
• Managed project tasks and sprint planning using Jira, adhering to Agile/Scrum methodologies to ensure on-time delivery.

• Developed client demos and prototypes using Spring Boot to showcase solutions for prospective clients.·
• Created technical documentation for various client solutions, ensuring clarity and completeness for development teams and stakeholders.
• Collaborated with an international team, including spending three weeks on-site in Paris, France, to ensure smooth project implementation.

• Creating SMS and Voice sending.

• Making rest request to API.

• Fronted adding forms,

• Creating a tests.

• Helped new student learn Java Programming.
• Creating Java SE tasks.
• SQL request.
• Added new tasks and information to program education.

• Modeling parts of aircraft parts in Siemens NX Teamcenter.
  
• Work with technical documentation, aircraft building iso.
  
• Work and editing drawings.
  
• Technical solution to repair broken parts.