• Responsible for end-to-end development of a high-fidelity document conversion and interactive reporting platform across Java/Spring Boot services and a React/TypeScript application.• Built Java 21/Spring Boot 3 pipelines for PDF, Word, presentation, spreadsheet, HTML, and text formats, preserving page geometry, fonts, images, tables, and formulas while supporting OCR-derived and multilingual/RTL content.• Developed React 18/TypeScript workflows with Redux and Material UI for document reconstruction, analysis overlays, navigation, annotations, comments, and print/PDF output.• Defined and maintained REST/JSON contracts between conversion and report applications, aligning text indexes, coordinates, media resources, and analysis metadata.• Implemented staged processing, payload and media optimization, lazy loading, caching, Micrometer/Prometheus metrics, and regression validation to address reliability and performance risks.• Use Codex as part of an AI-assisted software development workflow for codebase analysis, implementation planning, debugging, refactoring, test generation, and code review, retaining engineering ownership and validating changes through automated tests and manual review.• Partnered with client stakeholders through meetings and Jira from requirements clarification through validation; built JUnit, Jest/React Testing Library, contract, Playwright, and visual-regression coverage.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.