Radu-Mihai Voinea
github.com/Voinea-Radu
Versatile and self-motivated professional with extensive experience in diverse projects, from small teams to
large-scale collaborations, utilizing industry-standard technologies. Demonstrated ability to thrive under
pressure, effectively coordinating efforts to consistently meet targets ahead of deadlines. A fast learner with a
strong aptitude for mastering new skills independently, with a track record of swiftly adapting to new tools and
methodologies. Skilled in developing innovative solutions that enhance end-user experiences and proficient in
debugging, maintaining, and optimizing legacy codebases, achieving performance improvements of up to 50%.
Dedicated to delivering high-quality results in dynamic and fast-paced environments.
Education
National University Of Science and Technology Politehnica Bucharest, BS in Computer Science
2023 – present
Expected 2027
Certifications
New York University, MicroBachelors in Programming and Data Structures - [certificate]
2022
Georgia Tech, Professional Certificate - Introduction to Object-Oriented Programming with Java -
[certificate]
2022
Harvard: CS50x, CS50 Web, CS50 AI, 2022
Linux Foundation, LFS101x - Introduction to Linux - [certificate] 2022
Experience
Java Freelancer
September 2020 – present
Experienced Java Developer, DevOps Engineer and System Administrator with extensive hands-on expertise in
modern, industry-standard technologies. Skilled in designing, implementing, and managing scalable, distributed
systems for high-performance and reliability.
•
Distributed Systems & Cloud Computing: Proficient in creating and managing distributed load systems with a
focus on scalability and performance optimization. Skilled in cloud deployment and administration using
leading platforms, including AWS, DigitalOcean, and OVHCloud.
•
Containerization & Automation: Experienced with Kubernetes and Docker for container orchestration and
deployment. Proficient in Linux system administration and skilled in Bash and Python scripting to develop
automation tools for build, deployment, and DevOps processes.
•
Security & Performance Optimization: Proven track record in enhancing system stability, performance, and
security by up to 50% through best practices in system administration, monitoring, and vulnerability mitigation.
•
Web Server & Database Management: Strong background in configuring and maintaining web servers,
including Nginx and Apache2. Skilled in database design and management for both SQL and NoSQL databases,
including SQL relationships, MongoDB clusters, and Java drivers.
•
CI/CD Pipelines: Experienced in setting up CI/CD pipelines utilizing GitHub and Jenkins to automate
workflows, build, test, and deploy applications.
•
API Development & Integration: Proficient in creating and consuming REST APIs for inter-system
communication, as well as data scraping and analysis.
•
Legacy System Maintenance: Skilled in maintaining multi-platform systems and libraries, with experience in
modernizing and enhancing legacy infrastructure.
•
Leadership & Collaboration: Successfully assembled and led small, cross-functional development teams to
create and maintain microservices across various systems. Strong communicator, adept at coordinating with
team members to achieve collective project goals efficiently.
With a commitment to continuous learning and improvement, I bring a results-driven approach to all projects,
fostering stability, security, and scalability across infrastructures.
Projects
KingdomsCore
•
Developed a Kubernetes-based multi-server system for optimized data synchronization and dynamic scaling,
hosted on a public cloud for redundancy. It features auto-registering servers with a proxy, multi-layered caching
using MySQL, Redis, and in-memory solutions, and centralized logging for efficient monitoring and debugging.
•
Tools Used: Kubernetes, Java, MySql, Redis, MongoDB, Python, Linux
RustOS github.com/Voinea-Radu/RustOS
•
Created a Rust based Operating System aimed at offering code safety and extensibility at no expense to the
performance of OS, based on no external libraries.
•
Tools Used: Rust
ControlPanel github.com/Voinea-Radu/ControlPanel
•
Created a Spring Boot application to simplify Java application hosting by wrapping the Linux shell. It supports
multi-node management, user-selectable Java versions, automated SFTP server creation, and independent
resource monitoring per Java instance, with integrated Google 2FA for security.
•
Tools Used: Java, Spring Boot, Linux
RoyalSecurity github.com/Voinea-Radu/RoyalSecurity
•
Designed a Java-based Discord integration for enhancing Minecraft server security by using Discord as a second
authentication factor. Integrated with TicketSystem for seamless Discord-Minecraft account management,
enabling authentication, password resets, and moderation within the server environment.
•
Tools Used: Java, JDA, Rest API, Linux
RedisManager github.com/Voinea-Radu/RedisManager
•
Created a Redis-based inter-server event management library enabling two-way communication between
servers using events. It supports both one-to-one and broadcast communication modes, wrapping Redis’ pub-sub
mechanism for flexible and scalable inter-server event-driven interactions.
•
Tools Used: Java, Redis
Technologies
Languages: Java (Advanced), Python (Intermediate), C (Intermediate), Rust (Beginner), C++ (Beginner),
JavaScript (Beginner), Bash (Beginner)
Technologies: Kubernetes (Intermediate), Docker(Intermediate), Nginx (Intermediate), Apache2 (Beginer), Redis
(Intermediate), MySQL (Intermediate), MongoDB (intermediate), AWS (Beginner), DigitalOcean (Intermediate),
OVHCloud (Intermediate), REST APIs (Intermediate), Spring (Beginner), GitHub Actions (Advanced), SFTP
(Advanced), SSH (Advanced), Proxmox (Beginner), Hypervizors (Beginner)
