Grigore Guzun

Backend Developer

Chișinău, Moldova 3+ yrs exp 91 · Outstanding

About

Backend Developer with 2+ years of professional experience building and maintaining software applications in Java and Spring Boot. Proficient in designing REST APIs, working with PostgreSQL and SQL, and applying Git version control and Agile methodologies across the full software development lifecycle. Comfortable writing clean, efficient, maintainable code, troubleshooting and optimizing existing systems, and collaborating with cross-functional teams. Experienced with Docker, database design, and security best practices. Open to remote backend developer roles.

Skills & Expertise (27)

JavaScript Intermediate

6.5/10

Years Exp

Spring Boot Intermediate

6.5/10

Years Exp

REST APIs Intermediate

6.5/10

Years Exp

Docker Intermediate

6.5/10

Years Exp

Java Intermediate

6.5/10

Years Exp

Git Intermediate

6.5/10

Years Exp

GitHub Intermediate

6.0/10

Years Exp

Design Patterns Intermediate

6.0/10

Years Exp

SOLID principles Intermediate

6.0/10

Years Exp

Microservices Architecture Intermediate

6.0/10

Years Exp

Agile Intermediate

6.0/10

Years Exp

Jira Intermediate

6.0/10

Years Exp

Postgresql Intermediate

6.0/10

Years Exp

Spring Security Intermediate

6.0/10

Years Exp

SQL Intermediate

6.0/10

Years Exp

Docker-Compose Intermediate

5.5/10

Years Exp

Mockito Intermediate

5.5/10

Years Exp

Confluence Intermediate

5.5/10

Years Exp

JUnit Intermediate

5.5/10

Years Exp

SDLC Intermediate

5.5/10

Years Exp

Spring Profiles Intermediate

5.5/10

Years Exp

AWS Intermediate

5.5/10

Years Exp

Flyway Intermediate

5.0/10

Years Exp

Liquibase Intermediate

5.0/10

Years Exp

Minio Intermediate

5.0/10

Years Exp

AngularJS Intermediate

5.0/10

Years Exp

Google Cloud Intermediate

5.0/10

Years Exp

Work Experience

Software Developer

Next Generation Team (international)

Aug 2025 - Present

Develop and maintain software applications applying SOLID principles and design patterns to keep code clean, efficient, and maintainable. Troubleshoot, debug, and patch security vulnerabilities, improving application reliability and reducing reported issues by 42%. Upgraded JavaScript and React components and integrated Descope for authentication and BetterStack for monitoring. Participate in code reviews and enforce code-quality standards across the team.

University Assistant

Technical University of Moldova

Sep 2025 - Dec 2025

Taught and evaluated students on SOLID principles, design patterns, and code quality.

Java Developer

Esempla Systems

Feb 2024 - Aug 2025

Designed and developed back-end logic and REST API endpoints in Java and Spring Boot for a microservices architecture serving close to hundreds of endpoints. Managed PostgreSQL databases with Liquibase migrations and MinIO file storage; designed database schemas from requirements. Implemented Spring Security and Spring Profiles and containerized services with Docker, cutting deployment/setup time by 33%. Troubleshot, debugged, and optimized existing software; handled front-end modifications in AngularJS. Delivered features and bug fixes across many releases while maintaining application stability.

Java Developer Intern

Endava

Sep 2023 - Dec 2023

Built and tested Java Spring Boot features using JUnit and Mockito, applying core data structures and Flyway migrations. Collaborated using Atlassian tools within an Agile workflow.