Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am a detail-oriented and results-driven software engineer with three years of experience in designing, developing, and maintaining scalable backend applications primarily using Java, Spring Boot, and PostgreSQL. I am proficient in RESTful API development, microservices architecture, and cloud integration, and adept at agile methodologies, version control, and CI/CD practices. I am passionate about clean code, performance optimization, and continuous learning. Throughout my experience, I have built secure and robust APIs for major banks enabling seamless financial data exchange, led engineering teams to ensure code quality and on-time delivery, and collaborated closely with front-end and mobile teams to align APIs with UX requirements and minimize integration issues. I thrive in dynamic and collaborative environments and continuously seek to improve my skills and technologies used.…I am a detail-oriented and results-driven software engineer with three years of experience in designing, developing, and maintaining scalable backend applications primarily using Java, Spring Boot, and PostgreSQL. I am proficient in RESTful API development, microservices architecture, and cloud integration, and adept at agile methodologies, version control, and CI/CD practices. I am passionate about clean code, performance optimization, and continuous learning. Throughout my experience, I have built secure and robust APIs for major banks enabling seamless financial data exchange, led engineering teams to ensure code quality and on-time delivery, and collaborated closely with front-end and mobile teams to align APIs with UX requirements and minimize integration issues. I thrive in dynamic and collaborative environments and continuously seek to improve my skills and technologies used.

Blerim Hasa

Developer, Programmer, Back-End Developer, +1





I am a detail-oriented and results-driven software engineer with three years of experience in designing, developing, and maintaining scalable backend applications primarily using Java, Spring Boot, and PostgreSQL. I am proficient in RESTful API development, microservices architecture, and cloud integration, and adept at agile methodologies, version control, and CI/CD practices. I am passionate about clean code, performance optimization, and continuous learning. Throughout my experience, I have built secure and robust APIs for major banks enabling seamless financial data exchange, led engineering teams to ensure code quality and on-time delivery, and collaborated closely with front-end and mobile teams to align APIs with UX requirements and minimize integration issues. I thrive in dynamic and collaborative environments and continuously seek to improve my skills and technologies used.…I am a detail-oriented and results-driven software engineer with three years of experience in designing, developing, and maintaining scalable backend applications primarily using Java, Spring Boot, and PostgreSQL. I am proficient in RESTful API development, microservices architecture, and cloud integration, and adept at agile methodologies, version control, and CI/CD practices. I am passionate about clean code, performance optimization, and continuous learning. Throughout my experience, I have built secure and robust APIs for major banks enabling seamless financial data exchange, led engineering teams to ensure code quality and on-time delivery, and collaborated closely with front-end and mobile teams to align APIs with UX requirements and minimize integration issues. I thrive in dynamic and collaborative environments and continuously seek to improve my skills and technologies used.

Available to hire

I am a detail-oriented and results-driven software engineer with three years of experience in designing, developing, and maintaining scalable backend applications primarily using Java, Spring Boot, and PostgreSQL. I am proficient in RESTful API development, microservices architecture, and cloud integration, and adept at agile methodologies, version control, and CI/CD practices. I am passionate about clean code, performance optimization, and continuous learning.

Throughout my experience, I have built secure and robust APIs for major banks enabling seamless financial data exchange, led engineering teams to ensure code quality and on-time delivery, and collaborated closely with front-end and mobile teams to align APIs with UX requirements and minimize integration issues. I thrive in dynamic and collaborative environments and continuously seek to improve my skills and technologies used.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Software Engineer at Tetra Pro

January 1, 2023 - Present

Lead software engineer responsible for designing and implementing scalable REST APIs using Spring Boot for core modules such as fiscalization, notifications, and reporting. Developed integrations for critical systems including DPT (Government Institutions) and built secure APIs for major banks to enable seamless financial data exchange. Architected and documented internal API contracts for inter-departmental modules including user management and access control. Collaborated with front-end and mobile teams to align APIs with UX requirements and minimize integration issues.

Junior Java Developer at Meta now

January 1, 2023 - August 21, 2025

Assisted in building web applications using Spring Boot and Hibernate. Wrote unit and integration tests using JUnit and Mockito. Participated in daily stand-ups and Agile practices. Integrated frontend ReactJS apps with backend APIs. Led a team of engineers as the group's technical lead ensuring code quality, task delegation, and on-time delivery. Designed and implemented scalable REST APIs for modules like fiscalization, notifications, and reporting. Developed integrations for critical systems including DPT (Government Institutions).