Summary
Overview
Work History
Education
Skills
Websites
Interests
Timeline
Generic
Mustafa Güler

Mustafa Güler

Full Stack Java Developer

Summary

Result-oriented Software Developer with hands-on experience in designing and developing scalable backend systems. Skilled in working within Agile teams and contributing to DevOps processes. Committed to writing clean, testable code and continuously improving through learning new technologies and best practices.

Overview

4
4
years of professional experience
2
2
Languages

Work History

AI Software Developer

Outlier AI
10.2024 - 03.2025
  • - Analyzed the outputs of LLM based systems and made accuracy assessments.
  • - Evaluated the performance of LLM outputs, identified incorrect or incomplete responses, and provided improved samples to enhance model accuracy.
  • - Built both backend services and frontend components for AI-based applications.
  • Achievements/Tasks

Junior Java Developer

Pinatro
03.2023 - 02.2024
  • - Developed and maintained RESTful APIs using Spring Boot, reducing response time by 25%.
  • - Integrated JWT-based authentication with Spring Security, improving application security and role management.
  • - Implemented database interactions via JPA/Hibernate, designed efficient relational schemas in PostgreSQL.
  • - Improved CI/CD pipeline using Jenkins, leading to faster and error-free deployments.
  • - Actively participated in Agile/Scrum ceremonies such as daily stand-ups, sprint planning, and retrospectives using Jira and Confluence.
  • Achievements/Tasks

Junior Software Engineer

GittiGidiyor/eBay
07.2021 - 06.2022
  • - Developed and maintained backend services using Java and PHP, ensuring secure and scalable API communication for transaction workflows.
  • - Participated in Agile development (Scrum), using Jira for sprint planning and Confluence for technical documentation.
  • - Supported the frontend team with React.js components related to cart and order summary views, improving user experience.
  • - Supported integration of CI/CD pipelines via Jenkins and GitLab CI/CD, contributing to smoother deployment processes.
  • - Took active part in the shopping cart and payment modules, handling functionalities such as cart management, user payments, and order processing.
  • - Contributed to CI/CD pipelines with Jenkins and GitLab CI/CD, improving automation and deployment reliability.
  • Achievements/Tasks

Education

Computer Programming - Eng

Istanbul Aydin University
07-2021

Skills

  • Backend: Java (8), Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate / JPA, RESTful Services, Nodejs (Express), C#, NET Core, MVC, EF
  • Frontend: React, Typescript, JavaScript, HTML, CSS, Bootstrap, MaterialUi
  • DevOps: Docker, Kubernetes (K8s), Jenkins, GitLab CI
  • Databases: PostgreSQL, MySQL, Redis
  • Messaging: RabbitMQ
  • Methodologies & Principles: Agile/Scrum, SOLID principles
  • Testing: JUnit, Mockito, Integration Testing, Postman

Interests

Artificial Intelligence, Programming, Reading, Travelling, Searching

Timeline

AI Software Developer

Outlier AI
10.2024 - 03.2025

Junior Java Developer

Pinatro
03.2023 - 02.2024

Junior Software Engineer

GittiGidiyor/eBay
07.2021 - 06.2022

Computer Programming - Eng

Istanbul Aydin University
Mustafa GülerFull Stack Java Developer