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

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.

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Experience Level

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).

Education

Bachelor's Degree in Computer Science at Faculty of Epoka University
January 1, 2019 - January 1, 2022

Qualifications

High School
January 1, 2017 - January 1, 2019
Java 17, Udemy Oracle Certified Associate, Java SE Programmer
January 11, 2030 - August 21, 2025
PHP Developer Certification
January 11, 2030 - August 21, 2025
CanCan IT
January 11, 2030 - August 21, 2025
Spring Security
January 11, 2030 - August 21, 2025
Spring Data JPA
January 11, 2030 - August 21, 2025
Kafka
January 11, 2030 - August 21, 2025
Scheduler
January 11, 2030 - August 21, 2025
iText PDF
January 11, 2030 - August 21, 2025
Oracle Cloud (OCI)
January 11, 2030 - August 21, 2025
Docker
January 11, 2030 - August 21, 2025
JUnit
January 11, 2030 - August 21, 2025
Mockito
January 11, 2030 - August 21, 2025
Jenkins Pipelines
January 11, 2030 - August 21, 2025
Postman
January 11, 2030 - August 21, 2025
SQL Developer
January 11, 2030 - August 21, 2025
Tomcat
January 11, 2030 - August 21, 2025
Jakarta Servlet API
January 11, 2030 - August 21, 2025
OpenAPI (Swagger)
January 11, 2030 - August 21, 2025
Shell Scripting
January 11, 2030 - August 21, 2025
Log4j2
January 11, 2030 - August 21, 2025
Keycloak
January 11, 2030 - August 21, 2025

Industry Experience

Financial Services, Government, Software & Internet