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I am a seasoned Java Developer with over 6 years of experience specializing in software development using Java, Kotlin, SQL, and Groovy. I have extensive experience developing new features in microservice architectures to enhance application efficiency, scalability, and overall system stability. My expertise also includes code optimization, comprehensive testing frameworks, and streamlining CI/CD pipelines to boost team productivity and software reliability. I am fluent in English, Russian, and Ukrainian, and have a strong background in data analysis and cloud platform management. I thrive in Agile environments and maintain a passion for continuously refining my skills in the latest programming technologies and development practices.…I am a seasoned Java Developer with over 6 years of experience specializing in software development using Java, Kotlin, SQL, and Groovy. I have extensive experience developing new features in microservice architectures to enhance application efficiency, scalability, and overall system stability. My expertise also includes code optimization, comprehensive testing frameworks, and streamlining CI/CD pipelines to boost team productivity and software reliability. I am fluent in English, Russian, and Ukrainian, and have a strong background in data analysis and cloud platform management. I thrive in Agile environments and maintain a passion for continuously refining my skills in the latest programming technologies and development practices.

Nazar Kazymov

Developer, Programmer, App Developer, +2

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I am a seasoned Java Developer with over 6 years of experience specializing in software development using Java, Kotlin, SQL, and Groovy. I have extensive experience developing new features in microservice architectures to enhance application efficiency, scalability, and overall system stability. My expertise also includes code optimization, comprehensive testing frameworks, and streamlining CI/CD pipelines to boost team productivity and software reliability. I am fluent in English, Russian, and Ukrainian, and have a strong background in data analysis and cloud platform management. I thrive in Agile environments and maintain a passion for continuously refining my skills in the latest programming technologies and development practices.…I am a seasoned Java Developer with over 6 years of experience specializing in software development using Java, Kotlin, SQL, and Groovy. I have extensive experience developing new features in microservice architectures to enhance application efficiency, scalability, and overall system stability. My expertise also includes code optimization, comprehensive testing frameworks, and streamlining CI/CD pipelines to boost team productivity and software reliability. I am fluent in English, Russian, and Ukrainian, and have a strong background in data analysis and cloud platform management. I thrive in Agile environments and maintain a passion for continuously refining my skills in the latest programming technologies and development practices.

Available to hire

I am a seasoned Java Developer with over 6 years of experience specializing in software development using Java, Kotlin, SQL, and Groovy. I have extensive experience developing new features in microservice architectures to enhance application efficiency, scalability, and overall system stability. My expertise also includes code optimization, comprehensive testing frameworks, and streamlining CI/CD pipelines to boost team productivity and software reliability.

I am fluent in English, Russian, and Ukrainian, and have a strong background in data analysis and cloud platform management. I thrive in Agile environments and maintain a passion for continuously refining my skills in the latest programming technologies and development practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Russian

Fluent

Ukrainian

Fluent

Work Experience

Software Developer at Data Art

November 30, 2023 - August 20, 2025

Developed new features within a microservice architecture using Kotlin and Ktor to enhance application efficiency and scalability, applying modern programming paradigms and robust design practices. Maintained and developed Handlebars templates and underlying logic to generate XML and CSV files aligned with evolving business requirements. Enhanced code maintainability with comprehensive test coverage using JUnit, TestNG, and Mockito to reduce user-reported bugs and improve software reliability. Streamlined deployment and integration processes by optimizing GitLab pipeline configurations to achieve efficient workflows and minimize manual intervention. Increased test coverage by 25% leveraging GitLab CI/CD visualization tools to enhance code quality and ensure higher reliability across releases.

Java Developer at Dev.Pro

August 31, 2021 - August 20, 2025

Created, maintained, and enhanced Java and Spring Boot applications; managed Google Cloud Platform environment using Google App Engine to maintain system stability and performance. Created and maintained SQL queries for Java backend APIs. Proactively scanned the codebase for possible performance bottlenecks. Maintained and created App Engine configuration files using Python. Analyzed massive production logs using Linux shell commands and leveraged Groovy scripts to correct SQL transactional data to improve data integrity and system reliability. Enhanced and maintained a comprehensive end-to-end testing framework using Java and Groovy to reduce error rates and improve reliability. Implemented Swagger to standardize API development and streamline documentation, facilitating team collaboration and onboarding. Periodically performed small frontend tasks using Angular 4 and fixed frontend bugs.

Junior Java Developer at CHI Software

October 31, 2017 - August 20, 2025

Built and deployed commercial small-scale web applications using Spring Boot, Spring Data, and Tomcat, focusing on clean architecture and maintainability. Developed expertise in Spring Security, Spring Cloud, Apache Kafka, and Redis through structured self-learning and applied knowledge to boilerplate projects on GitHub with practical enhancements and integrations.

Junior Java Developer at DBBest

August 31, 2016 - August 20, 2025

Implemented features and maintained a JavaFX desktop application. Developed unit and functional tests using JUnit and TestNG.

Junior Java Developer at CS Ltd

June 30, 2015 - August 20, 2025

Implemented features and maintained a commercial client application using Java and GWT, widely used by top fintech companies in Ukraine. Implemented fintech-related business logic according to strict documentation and provided ongoing support and bug fixes.

Software Developer at Data Art

November 30, 2023 - August 20, 2025

Developed new features within a microservice architecture using Kotlin and Ktor to improve application efficiency and scalability. Maintained Handlebars templates and underlying logic to generate XML and CSV files aligned with evolving business requirements. Enhanced code maintainability through comprehensive test coverage using JUnit, TestNG, and Mockito, reducing user-reported bugs and improving software reliability. Streamlined deployment and integration processes by optimizing GitLab pipeline configurations, achieving more efficient workflows and minimizing manual intervention. Boosted test coverage by 25% via effective use of GitLab CI/CD visualization tools to enhance code quality and ensure higher reliability across releases.

Java Developer at Dev.Pro

August 31, 2021 - August 20, 2025

Created, maintained, and enhanced Java and Spring Boot applications, managing Google Cloud Platform environments using Google App Engine to ensure system stability and performance. Developed and maintained SQL queries for Java backend API, proactively scanning the codebase for potential performance bottlenecks. Managed App Engine configuration files using Python. Analyzed extensive production logs via Linux shell commands and leveraged Groovy scripts to correct SQL transactional data, improving data integrity and system reliability through scheduled shifts. Maintained and enhanced a comprehensive end-to-end testing framework using Java and Groovy to reduce error rates and enhance reliability. Implemented Swagger for API documentation and team collaboration, and periodically addressed small frontend tasks and bug fixes on Angular 4.

Junior Java Developer at CHI Software

October 31, 2017 - August 20, 2025

Built and deployed commercial small-scale web applications using Spring Boot, Spring Data, and Tomcat, focusing on clean architecture and maintainability. Developed expertise in Spring Security, Spring Cloud, Apache Kafka, and Redis through structured self-learning, applying knowledge to training projects cloned from GitHub with practical enhancements and integrations.

Junior Java Developer at DBBest

August 31, 2016 - August 20, 2025

Implemented features and maintained a JavaFX desktop application. Developed unit and functional tests using JUnit and TestNG.

Junior Java Developer at CS Ltd

June 30, 2015 - August 20, 2025

Implemented features and maintained a commercial client application using Java and GWT, widely used by top fintech companies across Ukraine. Implemented fintech-related business logic according to strict documentation and provided ongoing logic support and bug fixes as needed.