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I am an experienced backend developer with proven expertise in optimizing database queries, improving system throughput, and enhancing service response times. I have successfully maintained and developed electronic data interchange systems for government organizations, reducing processing times and eliminating data loss through smart implementations. I also rebuilt legacy systems using modern frameworks to improve scalability and ease of maintenance. Passionate about integrating modern technologies and implementing robust architecture, I have created personal projects such as an advertising Telegram bot with integrated payment systems, significantly reducing failure rates and providing seamless user experiences.…I am an experienced backend developer with proven expertise in optimizing database queries, improving system throughput, and enhancing service response times. I have successfully maintained and developed electronic data interchange systems for government organizations, reducing processing times and eliminating data loss through smart implementations. I also rebuilt legacy systems using modern frameworks to improve scalability and ease of maintenance. Passionate about integrating modern technologies and implementing robust architecture, I have created personal projects such as an advertising Telegram bot with integrated payment systems, significantly reducing failure rates and providing seamless user experiences.

Tulkunov Sarvar

Back-End Developer, Programmer, Web Developer, +1

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I am an experienced backend developer with proven expertise in optimizing database queries, improving system throughput, and enhancing service response times. I have successfully maintained and developed electronic data interchange systems for government organizations, reducing processing times and eliminating data loss through smart implementations. I also rebuilt legacy systems using modern frameworks to improve scalability and ease of maintenance. Passionate about integrating modern technologies and implementing robust architecture, I have created personal projects such as an advertising Telegram bot with integrated payment systems, significantly reducing failure rates and providing seamless user experiences.…I am an experienced backend developer with proven expertise in optimizing database queries, improving system throughput, and enhancing service response times. I have successfully maintained and developed electronic data interchange systems for government organizations, reducing processing times and eliminating data loss through smart implementations. I also rebuilt legacy systems using modern frameworks to improve scalability and ease of maintenance. Passionate about integrating modern technologies and implementing robust architecture, I have created personal projects such as an advertising Telegram bot with integrated payment systems, significantly reducing failure rates and providing seamless user experiences.

Available to hire

I am an experienced backend developer with proven expertise in optimizing database queries, improving system throughput, and enhancing service response times. I have successfully maintained and developed electronic data interchange systems for government organizations, reducing processing times and eliminating data loss through smart implementations.

I also rebuilt legacy systems using modern frameworks to improve scalability and ease of maintenance. Passionate about integrating modern technologies and implementing robust architecture, I have created personal projects such as an advertising Telegram bot with integrated payment systems, significantly reducing failure rates and providing seamless user experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Work Experience

Backend Developer at Scientific and Information Center "New Technologies" under the State Tax Committee

August 1, 2025 - August 21, 2025

Maintained and developed the electronic data interchange system of the Tax Committee with other governmental organizations. Optimized SQL queries, added indexes and partitions, and implemented backend parallelism to reduce main service response time by 5 times. Improved system throughput and reduced pause times by 43% through heap and thread profiling and JVM garbage collection tuning. Eliminated data loss in the notification service by implementing RabbitMQ, reducing processing time from 2 hours to 20 minutes through Java multithreading.

Full Stack Developer at Cash box

July 1, 2021 - October 1, 2021

Replaced legacy Python-based security with a new Spring Security module to ensure secure authentication and authorization. Securely migrated legacy user passwords for seamless login. Improved API response time by 12ms by caching frequently accessed user profile data in Redis, reducing redundant database calls. Rebuilt a legacy monolithic system by separating frontend and backend using Vue.js, Vuex, and Spring Boot, improving system scalability and ease of maintenance.