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Professional Summary

Java Technical Lead with over 15 years of experience in software development, optimization, and architectural design across various sectors. Proficient in Java, Spring Boot, Hibernate, and modern database technologies. Demonstrated expertise in improving system performance and enhancing business processes. Passionate about education and mentoring, with extensive experience in teaching, conducting webinars, and coaching professionals. Proven leadership and innovative skills as an architect in the successful startup gtfs.pro.

Work Experience

Java Technical Lead

gtfs.pro
February 2022 - Present

• Leadership & Innovation: Architected robust solutions and led the development of new integration features to meet evolving business requirements.
• Microservices Architecture: Designed and implemented microservices using Java 21, Spring Boot, and Spring Cloud, enhancing system resilience and performance through advanced design patterns such as circuit breaker and rate limiter.
• Startup Success: Played a crucial role as an architect in the successful startup gtfs.pro, showcasing leadership and innovation in the tech landscape.

Senior Backend Java Developer

TeamIdea
April 2020 - February 2022

• Retail Sector Expertise: Developed and maintained microservices for retail clients, significantly improving digital experiences and operational efficiency.
• Technology Integration: Integrated PostgreSQL, CouchBase, Kafka, ElasticSearch, and Clickhouse for comprehensive data processing and analytics.
• Performance Optimization: Ensured robust system performance and scalability on Tomcat 10 using REST, WebSocket, and Grpc.

Senior Backend Java Developer

Almexecm (almexoft.com)
June 2016 - April 2020

• Automation & Document Management: Led the development of automation and document management systems with Java 11 and Spring Boot, enhancing business operations.
• Database Management: Managed Oracle, PostgreSQL, and MS SQL databases, implementing REST, SOAP, and WebSocket for seamless data integration.
• System Reliability: Maintained high system performance and reliability on Tomcat 9.

Java Developer

Massmo Group (Tele2)
May 2013 - June 2016

• Client Services Improvement: Developed CRM and web applications for business clients using Java 6 and 7, Spring, and Hibernate, improving client service and operational efficiency.
• Stable System Performance: Managed Oracle database and deployed applications on Tomcat 7 and JBoss servers, ensuring stable and efficient system performance.

Java Developer

IDC (idknet.com)
August 2009 - February 2013

• Network Management Tools: Created GIS and telecommunications network monitoring tools with Java 6, Spring, and Hibernate, enhancing network management and performance.
• Enhanced Functionality: Handled Oracle database operations and developed applications on Tomcat 6, improving system functionality and reliability.

Technical Skills

• Languages: Java (6, 7, 11, 17, 21), JavaScript
• Frameworks: Spring, Spring Boot, Hibernate, Zkoss, JSP, Mybatis
• Databases: MySQL, PostgreSQL, Oracle, CouchBase, MS SQL, Clickhouse
• Tools & Technologies: RabbitMQ, Redis, ElasticSearch, Kafka, REST, SOAP, WebSocket, Grpc, Docker
• Servers: Tomcat, JBoss, Jetty, Netty
• Others: React, Typescript, Tailwind CSS, Rust, C#
• Design Principles: SOLID, ACID, DRY, KISS, YAGNI

Education

• Bachelor of Information Systems and Networks
  Odesa National Academy of Telecommunications named O.S. Popov, 2007

• Master of Telecommunications
  Odessa National Academy of Telecommunications named O.S. Popov, 2008

Achievements

• Educational Contributions: Over six years of experience in teaching Java programming, developing and delivering comprehensive educational content, including webinars and open lessons.
• Mentoring Expertise: More than ten years dedicated to mentoring, focusing on developing technical skills, enhancing problem-solving abilities, and fostering a growth mindset. Successfully guided many individuals in achieving their career objectives and excelling in software development.