Bachelor of Science in Computer Science

1999 - 2007

Rochester Institute of Technology, Rochester, NY

Programming Languages: C/C++, JavaEE, J2EE, JavaScript, Kotlin, Objective-C, Python, PHP, Swift

Frameworks & Libraries: Node.js, React, AngularJS, Spring, Vaadin, Bootstrap, GWT, Swing, JSF, JavaFX, JMS, REST, SOAP

Databases: SQL, MySQL, MSSQL, Oracle, Postgres, MongoDB

Cloud Services & DevOps: Jenkins, Kubernetes, Git, SVN, Jira, Maven

Dev. Tools Git, Eclipse, NetBeans, IntelliJ, Xcode

Domain Expertise: UNIX, macOS, Linux, Windows, Solaris, FreeBSD

Freelance Software Developer

2022 - Present

DigitalBSD - Chesapeake, VA

• Played a pivotal role in the Software Development Life Cycle of a SaaS application to manage language schools, streamlining administrative tasks and integrating student information, course enrollment, attendance, grading, and communication, while delivering clean and scalable code in JavaEE, with Spring Boot, Vaadin, React, Maven and MySQL.
• Collaborated with cross-functional stakeholders, including school administrators and teachers, to synthesize requirements, enhance feature sets, and achieve alignment with institutional objectives. Leveraged Agile/Scrum methodology to maintain structured progress, resulting in a 20% improvement in project timeline efficiency.
• Implemented Spring Boot to improve development efficiency and streamline setup processes by leveraging its powerful ecosystem for dependency injection, data access, and MVC architecture, while integrating Java best practices such as clean code and modular architecture, along with Spring features like AOP and transaction management, resulting in a scalable system capable of supporting 7,000 concurrent users.
• while integrating React for specific dynamic and client-side interactions, enhancing accessibility and boosting user engagement, leading to a 15% increase in active user sessions.
• Developed robust data models and optimized database operations utilizing JPA and Hibernate with MySQL, incorporating normalization and query optimization, ensuring data integrity, performance, and scalability, and achieving a 10% increase in operational efficiency.
• Implemented a secure payment processing system, integrating PayPal with SSL for secure transactions and automating invoicing through IFTTT, reducing manual effort and achieving a transaction success rate of 98%.
• Enhanced real-time communication by implementing asynchronous messaging through Java Message Service (JMS), with point-to-point messaging for critical notifications such as class cancellations and schedule changes, ensuring delivery rates of over 97%.
• Executed thorough testing?including unit, integration, and acceptance tests?to confirm functionality, detect bugs, and ensure reliability, employing JUnit and achieving 70% unit test coverage, complemented by integration and acceptance tests for broader validation.
• Engineered and deployed duplicate detection algorithms in Java/C++, using MD5 hashing and parallel processing with multithreading to efficiently eliminate redundant files, achieving a 60% file reduction rate.
• Deployed applications using a canary release strategy, assisted by Jenkins, reducing deployment time to 6 minutes and minimizing risks during production rollouts.
• Supported ongoing maintenance and addressed user inquiries, troubleshooting, updates, and patches. Utilized preventive maintenance, monitored via Zabbix, effectively reducing system downtime to 6 hours per year.
• Provided comprehensive documentation, including user manuals, guides, and API documentation, to enhance implementation, training, and maintenance.
• Presented to stakeholders, leveraging storytelling and adapting messages to specific audiences to ensure understanding and alignment.
• Engaged in continuous learning and professional development, staying abreast of emerging technologies and industry trends to incorporate cutting-edge tools and techniques in the development process.

Senior Software Engineer - Java Developer

2009 - 2022

Fabbers - Moscow, Russia & Kyiv, Ukraine

• Participated in the technical effort by leading a distributed team of developers, ensuring seamless collaboration using Git while implementing both server-side and client-side features.
• Recruited, mentored, and managed a team of 5 engineers. Conducted 1-on-1 meetings, led performance reviews, and collaborated on employee personal development plans. Fostered a psychologically safe environment to maximize productivity, promote well-being, and strengthen team unity among onsite and remote members.
• Directed the enhancement of the CRM system, streamlining the tracking of product data, case history, and reporting to improve efficiency. Employed Salesforce, integrated workflow automation, and harnessed real-time analytics, resulting in a 20% increase in data processing speed.
• Initiated the development of application features using Vaadin for forms, Spring for controllers, and JSP for views, while integrating business logic and data management strategies with Hibernate, achieving a 96% completion rate for deployed features.
• Implemented scalable solutions by integrating React with Node.js, leveraging features such as virtual DOM and microservices architecture, along with API gateway integration, leading to a 20% increase in customer satisfaction and a 25% improvement in system usability metrics.
• Revamped the organization's technical infrastructure by optimizing website and server maintenance using HTML5, Nginx, and JBoss, enhancing load balancing and achieving a reliable online presence with a 15% reduction in load times.
• Maintained and enhanced software performance by implementing periodic updates and optimizations, utilizing Git for source code management and Prometheus for real-time performance monitoring, which ensured continuous system efficiency and reduced downtime by 20%.
• Conducted thorough code reviews using GitHub, refined Postman tests, and enhanced documentation with ReadTheDocs, streamlining operations and achieving a code quality rating of 80%.
• Actively participated in weekly strategic sessions, utilizing Agile practices to address and resolve open issues, delegate tasks, and drive continuous improvement initiatives.

Software Engineer - Java Developer

2008

Project Harmony - Moscow, Russia

• Maintenance web applications for an international non-governmental organization, enabling remote project management, finances, and office tasks.
• Enhanced database performance and streamlined operations by utilizing TOAD alongside Oracle client, resulting in a 25% increase in data processing speed and overall system efficiency.
• Executed the LEAP project, leveraging data-driven insights to optimize the organization's website, leading to a 15% increase in lead generation and a 25% improvement in overall website performance.

Software Engineer - C# Developer

2006 - 2007

IDI Billing, Inc. - Victor, NY

• Implemented C# .NET applications to optimize CostGuard billing and customer care software, resulting in a 15% reduction in billing cycle time and a 20% improvement in customer satisfaction.
• Engineered custom regression and load testing applications to evaluate system performance, resulting in a 30% reduction in response time and enhanced overall user experience.
• Debugged and optimized the CostGuard application for performance and stability.

Intranet Application Developer - Intern

2005

USDA - Washington, D.C.

• Developed C# .NET applications to process SF-52 Request for Personnel Action forms.
• Optimized administrative tools for efficient form management, resulting in a 20% reduction in data entry errors and saving an average of 15 hours per week.
• Strengthened login security measures by conducting security audits, reducing unauthorized access incidents by 45%.
• Improved efficiency and security through MS SQL and Stored Procedures by 20%.
• Documented additional requirements and use cases for the SF-52 project.