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Shaping personIdeaspersonConceptspersonDesignspersonCodepersonIdeaspersonConceptspersonDesignspersonCode

into Real Projects

that Deliver Results

Hi, I’m Alin, a developer based in Romania with a passion for code.

See My Work

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Year of Industry Experience
Academic Projects Completed
Internships & Minors
Commitment to Learning & Growth
project1

METABRIEF – AI-Powered Developer Productivity Platform

By combining research and development, METABRIEF demonstrates how AI can streamline developer workflows. It reduces onboarding friction, saves time spent searching through unfamiliar code, and ensures that meeting knowledge is preserved and accessible. While still a prototype, testing with real repositories and meeting recordings shows strong potential for real-world adoption

project2

MyDrive - Storage & File Sharing Platform

View the live demo
project3

On-Demand Rides Made Simple with a powerfull

Quality Focus

Quality Focus

Delivering high-quality results while maintaining attention to every detail.

Reliable Communication

Reliable Communication

Keeping you updated at every step to ensure transparency and clarity.

On-Time Delivery

On-Time Delivery

Making sure projects are completed on schedule, with quality & attention to detail.

My Career Timeline 💼

Profesional work Experience
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Alin brought strong backend expertise to the team, improving code quality and system reliability. His contributions in building REST APIs, modernizing Spring Boot services, and integrating Keycloak for secure access control were invaluable in making our platforms more scalable and maintainable.

Java Backend Developer

Java Backend Developer

🗓️January 2025 - Present

Responsibilities

  • Built and maintained backend services using Java and Spring Boot.
  • Built and improved REST APIs using Spring Boot, following a clean structure with separate layers for controllers, services, and repositories. Used Spring Data JPA with Hibernate for database work, and tools like Lombok and MapStruct to keep the code clean and simple.
  • Worked on Keycloak-based IAM integration to enable dynamic group and role management, supporting scalable multi-tenant access control.
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Alin quickly became a valuable part of the team, contributing to real projects with Java, Spring Boot, and Next.js. He showed strong curiosity, learned fast, and left behind improvements that made a real impact.

Software Engineer - Internship

Software Engineer - Internship

🗓️August 2024 - December 2024

Responsibilities

  • Contributed to full-stack development tasks using Java (Spring Boot) and Next.js, gaining hands-on experience across backend, frontend, and testing layers.
  • Applied agile methodologies (SCRUM), CI/CD, and code documentation practices, gaining insight into real-world software lifecycle management.
  • Collaborated with senior engineers and received mentorship on coding standards, architecture, and communication, enhancing both technical and soft skills.
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Alin and his team did a solid job during the Hack&Sea minor. They carried out security checks on the KASTEELBORG ship, identified weak spots, and documented issues clearly. It was great to see their teamwork and curiosity in action, gaining hands-on insight into how cybersecurity applies to real ship systems.

Hack&Sea Minor

Hack&Sea Minor

🗓️December 2023 - March 2024

Responsibilities

  • Helped with security checks on the KASTEELBORG ship to find possible problems in its computer systems.
  • Took part in basic testing to find weak spots and helped write down about 30% of the issues found.
  • Learned how ship computer systems work and got a better understanding of cybersecurity at sea.
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Alin and his team did an excellent job in the Ethical Hacking minor, producing a solid penetration testing report and applying real-world techniques like social engineering. They worked well together, showing strong technical skills and clear communication.

Ethical Hacking Minor

Ethical Hacking Minor

🗓️September 2023 - December 2023

Responsibilities

  • Produced a professional penetration testing report, presenting structured analysis and documenting 100% of test findings and remediation steps.
  • Practiced social engineering techniques, gaining insight into human error as a factor in over 40% of simulated security breaches.
  • Gained hands-on experience in ethical hacking methods and followed responsible disclosure practices, improving technical and communication skills by ~50% through peer-reviewed feedback.

⭐️ Customer feedback highlights

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💬 Have questions or ideas? Let’s talk! 🚀

Get in Touch – Let’s Connect
Costache Alin

Costache Alin

Just a dude, software-developer

Alin Costache

#.../alin-costache.com:

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Github Stats

Followers

5.6 years of experience
Software Engineering4.0 years
Java Development1.6 years