ENGINEER
Junior Software Developer

Beyzanur
Altındal

Backend Developer · Java & Spring Boot

Computer Programming graduate passionate about Java, Spring Boot, Backend Development and Artificial Intelligence integrations[cite: 2]. I build secure REST APIs with Spring Security, design relational database schemas[cite: 2], and deploy AI agent systems into modern web architectures[cite: 1] — sharing insights about optimized software delivery and structural code performance.

Java 17 Spring Boot 3 Spring Security SQL Server Python Kotlin AI Agents
View Projects → GitHub Profile

clean code · microservices architecture · open source contributor

01.

About Me

I'm a Junior Software Developer with an Associate Degree in Computer Programming from Gazi University, Ankara[cite: 2]. My primary technical focus is Java 17 & Spring Boot 3 — designing highly scalable, well-documented REST APIs with robust security layers and relational databases[cite: 2].

My experience includes engineering data pipelines and testing code-level optimizations for Turkey's national open-source T3 AI initiative[cite: 2]. This developer role allowed me to work closely on data curation models and deepened my domain interest in intelligent enterprise applications and LLM agent architecture[cite: 1, 2].

I continuously focus on software engineering principles, cloud fundamentals, and clean code practices. I aim to build high-performance backend systems while actively writing technical write-ups in both English and Turkish about backend development, AI tools, and full-stack software architecture[cite: 1, 2].

6+
Tech Certifications
4+
Production Projects
10+
Tech Stack Tools
B1
English Level
02.

Skills & Stack

Backend
Java 17
Spring Boot 3
Spring Security
REST API Design
SQL / MS SQL Server
Swagger / OpenAPI
Other Languages
Python
Kotlin
JavaScript
C#
Rust (Bootcamp)
HTML5 / CSS
Cloud & Tools
AWS (AI Fundamentals)
Google OAuth2
Groq API
Jetpack Compose
Git / GitHub
Microsoft Office
03.

Selected Projects

Featured Project
@RestController
@RequestMapping("/api/daycare")
public class DaycareController {
  @Autowired
  private AttendanceService service;

  @GetMapping("/attendance")
  public ResponseEntity<List<Record>>
    getRecords() { // ... }
}
Java Spring Boot MVC Architecture REST API SQL

Daycare Automation System

Full backend enterprise system developed during internship at the General Directorate of Forestry[cite: 2]. Handles structural scheduling, attendance tracking, and communications — production-ready with full API coverage[cite: 2].

  • Developed REST APIs with Spring Boot following MVC Architecture[cite: 2]
  • Implemented backend data management and processing modules[cite: 2]
  • Designed relational database schemas for complex internal entity structures[cite: 2]
  • Built structural endpoints ensuring high-speed corporate communication data paths[cite: 2]
  • Successfully finalized project requirements under production guidelines[cite: 2]
GitHub
AI · Full-Stack
@Service
public class GroqService {
  public String chat(
    String prompt,
    List<Message> history
  ) { // Groq API call }
}
Spring Boot 3 Groq API OAuth2 SQL Server AI Agent

ChinguAI

Full-stack generative AI application integrating an autonomous AI agent architecture with secure session persistence[cite: 1].

  • Integrated Groq LLM API with model switching capabilities for autonomous reasoning[cite: 1, 2]
  • Implemented secure Google OAuth2 authentication flow with Spring Security layers[cite: 1, 2]
  • Curated and engineered custom datasets to optimize model response context[cite: 1]
  • Persisted real-time chat history data schemas in MS SQL Server instances[cite: 1, 2]
  • Published an engineering deep-dive on DEV.to highlighting system workflows[cite: 2]
GitHub DEV.to
Backend API
@Entity
public class Task {
  @ManyToOne
  private User assignedTo;

  // Swagger OpenAPI 3.0
  // Spring Security RBAC
}
Spring Boot 3 Spring Security MS SQL Server Swagger

Smart Task Manager API

Secure task management backend featuring custom role-based access control (RBAC) and complete API documentation[cite: 2].

  • Developed structural REST APIs using Spring Boot 3 and Java 17 architectures[cite: 2]
  • Implemented Spring Security with precise role-based endpoint authorization[cite: 2]
  • Designed efficient One-to-Many entity relational boundaries within MS SQL Server[cite: 2]
  • Integrated Swagger / OpenAPI 3.0 specs for developer-friendly documentation[cite: 2]
GitHub
Android · Kotlin
@Composable
fun GoalCard(goal: Goal) {
  Card(modifier = Modifier
    .fillMaxWidth()
    .padding(16.dp)) {
    // Jetpack Compose UI
  }
}
Kotlin Jetpack Compose Android

Development Tracker

Android mobile application built to log metric metrics, personal progression tracking, and objective management[cite: 2].

  • Built using pure Kotlin and modern Jetpack Compose declarative layouts[cite: 2]
  • Monitors tracking metrics and custom metric-driven target allocations[cite: 2]
  • Follows Android architectural clean-app patterns and encapsulation principles[cite: 2]
GitHub
04.

Experience & Background

2024 – 2025
Remote
Junior Software Developer (Volunteer)
T3 AI — National Open-Source Initiative

Contributed to Turkey's open-source T3 AI infrastructure codebase[cite: 2]. Managed data engineering, rigorous curation workflows to tune model responses, executed continuous model validation testing, code-level optimizations, and structured technical technical documentation[cite: 2].

2025 – Mar 2026
Ankara
Contract Data Management Specialist
Archivist Design Company

Organized corporate digital archives, performed exact-match data entry, data normalization, and document verification flows protecting integrity for scaling project pipelines[cite: 2].

2023
Ankara
Software Development Intern
General Directorate of Forestry

Completed a mandatory one-month software development internship[cite: 2]. Architected and built a daycare automation system using Java Spring Boot, developing key knowledge on structural system deployment and backend data architecture[cite: 2].

2025
Remote
Online Intern
TNC Group

Completed technical training modules in Python, analytical data organization within Excel, AutoCAD, and Photoshop layouts[cite: 2]. Participated in process documentation and project summary writing pipelines[cite: 2].

Core Specialization
Backend Architecture & AI Integrations
Robust REST APIs · Data Engineering · Secure System Design
Java
Core Lang
Spring
Framework
SQL
Database
05.

Writing & Articles

DEV.to · 2026

ChinguAI: Building an AI Chat App with Spring Boot & GitHub Copilot

A deep dive into building a full-stack AI chatbot — OAuth2, Groq API integration, SQL persistence, and the debugging journey[cite: 2].

Read Article
Medium · Apr 2026

Writing Code with ChatGPT: Is It Making You Lazy or Turning You Into a Superhero?

A junior backend developer's perspective on using AI as a growth engine rather than a shortcut[cite: 2].

Read Article
Medium (TR) · Feb 2026

Bir Chatbot ile Bir AI Ajanı Arasındaki Fark Nedir?

Chatbot'lar cevap verir, AI ajanları iş yapar. Bu farkın neden önemli olduğunu keşfediyoruz[cite: 2].

Makaleyi Oku
Medium · All Articles

The Human Side of Code

Reflections on technology volunteerism, the T3 AI initiative, and what it means to build for a national open-source mission[cite: 2].

View All on Medium
06.

Education & Certifications

Education

2021–2024Gazi University
Associate Degree · Computer Programming · Ankara[cite: 2]
2016–2020Ümitköy Anatolian Imam Hatip High School
GPA: 86.37 / 100 · Science & Social Sciences · Ankara[cite: 2]

Certifications

2025AI Fundamentals and the Cloud
Amazon Web Services (AWS)[cite: 2]
2025Python Bootcamp
Turkcell Academy[cite: 2]
2025Data Science
Turkcell Academy[cite: 2]
2024Rust Bootcamp
Rise In · Patika[cite: 2]
2024Introduction to Machine Learning
AI Business School · Global AI Hub[cite: 2]
2024Python Tutorial
AI Business School · Global AI Hub[cite: 2]
07.

Get in Touch

Open to backend engineering opportunities, open-source projects, and technical collaborations.

GitHub beyzanur314 LinkedIn beyzanur-altındal Medium @altindalbeyzanur DEV.to beyza312
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