Johny Abaev - CV Senior Java/Kotlin Developer

PROFESSIONAL EXPERIENCE Lead Software Developer Dec 2023 – Present (2 yrs 7 mos) GTS LLC — Moscow Projects: information & accounting request-management system, microservice architecture. • Built a high-load system with REST APIs and message brokers from scratch. • Delivered an MVP of a work-scheduling system in 1.5 months instead of 4, using a genetic algorithm and a weighting system to optimize schedules. • Improved engine performance 13x through multithreading. • Optimized interaction between microservices and the database (JdbcTemplate / jOOQ). • Initiated the migration to Clean Architecture and partial DDD adoption, simplifying maintenance and scaling. • Organized team processes: code reviews, sprint planning, and task definition for analysts. Stack: Java 17, Kotlin, Spring Boot, PostgreSQL, Kafka, Docker, ELK, Liquibase, Maven, Linux Middle Java Developer Nov 2021 – Dec 2023 (2 yrs 2 mos) FORS Development Center — Moscow Integration and government projects; microservice solutions for the public sector. • FlyDrone (UAV flight request & reference system): implemented an adapter between a military protocol and a REST API; built an “air-situation” module using Redis as a real-time store with minimal latency. • Ministry of Agriculture enterprise financing (B2B document workflow): developed a flexible, highly abstracted document-generation mechanism. • Galen (veterinary-drug accounting system): migrated and modernized legacy code, updated dependencies and tests. Stack: Java 8/17, Kotlin, Spring Boot, Redis, Kafka, Docker, PostgreSQL, Liquibase Junior / Junior+ Java Developer Mar 2019 – Nov 2021 (2 yrs 9 mos) Core Partners • Built and configured software; wrote and debugged code in Java. • Analyzed and optimized running software to improve performance and functionality; provided ongoing support and maintenance. • Ensured code met quality standards; debugged errors and identified and resolved issues.

Bachelor’s Degree, Software Engineering Bauman Moscow State Technical University (National Research University), Moscow — Faculty of Informatics and Control Systems; Software of Computing Systems and Automated Systems

SQL Java Git PostgreSQL Информационные технологии Базы данных Веб-программирование Обучение и развитие MySQL Работа с базами данных Разработка ПО Английский язык Solid Works Linux SQL запросы DDD Clean Architecture Agile Kotlin JOOQ Redis

Английский

Senior Java/Kotlin developer with 7+ years of commercial experience designing, optimizing and maintaining microservice and monolithic systems. Strong background in software architecture, Domain-Driven Design and Clean Architecture, and integration with external systems via REST, Kafka and message brokers. Core strengths: systems thinking, technical leadership, performance optimization and building scalable solutions. Regular attendee of the Joker and JPoint conferences.