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I am a Java Developer with 11 months of practical experience in building scalable microservices and cloud-based applications using Java 17+, Spring Boot, and AWS. I specialize in implementing efficient RESTful APIs and event-driven systems with Kafka. I have a proven track record in optimizing application performance, ensuring security with JWT, and streamlining deployment with CI/CD pipelines. I am eager to apply strong OOP principles and design patterns to deliver robust and maintainable solutions that meet business needs. I thrive in collaborative environments and continuously seek to enhance my skills in backend development and cloud infrastructure management.…I am a Java Developer with 11 months of practical experience in building scalable microservices and cloud-based applications using Java 17+, Spring Boot, and AWS. I specialize in implementing efficient RESTful APIs and event-driven systems with Kafka. I have a proven track record in optimizing application performance, ensuring security with JWT, and streamlining deployment with CI/CD pipelines. I am eager to apply strong OOP principles and design patterns to deliver robust and maintainable solutions that meet business needs. I thrive in collaborative environments and continuously seek to enhance my skills in backend development and cloud infrastructure management.

Roman Krasnoshapka

Developer, Programmer, Back-End Developer, +2

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I am a Java Developer with 11 months of practical experience in building scalable microservices and cloud-based applications using Java 17+, Spring Boot, and AWS. I specialize in implementing efficient RESTful APIs and event-driven systems with Kafka. I have a proven track record in optimizing application performance, ensuring security with JWT, and streamlining deployment with CI/CD pipelines. I am eager to apply strong OOP principles and design patterns to deliver robust and maintainable solutions that meet business needs. I thrive in collaborative environments and continuously seek to enhance my skills in backend development and cloud infrastructure management.…I am a Java Developer with 11 months of practical experience in building scalable microservices and cloud-based applications using Java 17+, Spring Boot, and AWS. I specialize in implementing efficient RESTful APIs and event-driven systems with Kafka. I have a proven track record in optimizing application performance, ensuring security with JWT, and streamlining deployment with CI/CD pipelines. I am eager to apply strong OOP principles and design patterns to deliver robust and maintainable solutions that meet business needs. I thrive in collaborative environments and continuously seek to enhance my skills in backend development and cloud infrastructure management.

Available to hire

I am a Java Developer with 11 months of practical experience in building scalable microservices and cloud-based applications using Java 17+, Spring Boot, and AWS. I specialize in implementing efficient RESTful APIs and event-driven systems with Kafka. I have a proven track record in optimizing application performance, ensuring security with JWT, and streamlining deployment with CI/CD pipelines.

I am eager to apply strong OOP principles and design patterns to deliver robust and maintainable solutions that meet business needs. I thrive in collaborative environments and continuously seek to enhance my skills in backend development and cloud infrastructure management.

Skills

Experience Level

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Intermediate

Ukrainian

Fluent

Work Experience

Junior/Middle Java Developer at Globalify

March 1, 2025 - August 26, 2025

Developed and optimized microservices using Java 17+, Spring Boot, and Spring Data (Hibernate), reducing database query times by 20%. Built robust REST APIs and asynchronous communication with Kafka, improving system responsiveness and resilience. Designed and launched a microservices-based online store, achieving 99.9% system uptime and handling over 10,000 daily transactions. Integrated JWT authentication and API Gateway for secure, centralized access management across services. Automated deployment pipelines using AWS CodePipeline, decreasing release cycle time by 40%. Leveraged AWS (EC2, S3, RDS, ECR) for scalable, cost-efficient infrastructure management. Applied SOLID principles and design patterns (Factory, Strategy, Proxy, Observer) to ensure clean, maintainable codebases.