Architecting Systems.
Breaking Vulnerabilities.
Code. Break. Secure.
I'm Manickam Kumar — Senior Full-Stack Developer & eJPT-Certified Security Researcher. I design resilient backend microservices, deploy hardened container infrastructure, and perform proactive vulnerability research against modern threats.
Architectural Expertise & Security Practice
Proven technical competencies spanning enterprise backend microservices, hands-on offensive security assessments, and high-availability self-hosted deployments.
Enterprise Backend Architecture
Engineering decoupled RESTful services, transactional persistence layers, and modular applications using Java Spring Boot and modern PHP 8.3/Winter CMS. Designed with strict domain separation, defensive coding, and automated unit/integration validation.
Penetration Testing (eJPT)
Structured offensive security audits: network scanning, privilege escalation, web application vulnerabilities (OWASP Top 10), and practical remediation roadmaps.
Self-Hosted Infrastructure
Traefik automated TLS proxying, container isolation with Docker Compose, DNS privacy via AdGuard Home DoH, and atomic zero-downtime deployment pipelines.
Relational Database Engineering & Point-in-Time Recovery
Schema optimization, index strategy, and automated pre-migration SQL snapshots with verified rollback mechanisms. Ensuring database transactions remain isolated and completely decoupled from filesystem switches.
Self-Hosted Zero-Trust Infrastructure Topology
A public-safe schematic of the production hosting topology powering MKCyberLabs services.
Code. Break. Secure. My First Step to Self-Hosting
Transitioning from localhost experimentation to high-uptime self-hosting. A transparent case study evaluating ISP static IP costs, AWS Free Tier constraints, and building a budget-optimized infrastructure stack with Traefik TLS automation and AdGuard Home DNS-over-HTTPS.
Featured Systems & Applications
Authentic software projects, security tools, and self-hosted infrastructure architectures.
NutriSnap — Privacy-First Nutrition Intelligence
A privacy-first nutrition tracking platform integrating meal logging, macro calculations, and PostgreSQL health database.
MK-Proxy — Lightweight SSL & Reverse Proxy Gateway
Automated Traefik and Docker reverse proxy configuration with Let's Encrypt TLS and DNS-over-HTTPS.
MKCyberLabs Personal Website V2
Self-hosted developer portfolio and engineering blog running on private VPS infrastructure.
MKCyberLabs Gesture Controller
Computer vision gesture recognition platform mapping hand coordinates to OS actions in real time.
Verified Experience & Education
Full-Stack Architect & Security Lead
2024 — PresentArchitecting modular web platforms, multi-agent automated orchestration (CBDS / Herdr), containerized deployments, and security validation gates. Enforcing defense-in-depth across databases, reverse proxies, and backend APIs.
Self-Hosted Infrastructure Engineer
2023 — 2024Engineered automated edge proxy configurations with Traefik, private DNS with AdGuard Home, container health surveillance, and TLS certificate automation across self-hosted server nodes.
B.Sc. in Information Technology
Graduated First ClassCore academic foundations in Data Structures and Algorithms, Computer Networks, Database Management Systems, Linux Administration, and Software Engineering methodologies.
Professional Certifications
Rigorous external certifications verifying practical proficiency in penetration testing, security operations, Java, and Cloud Computing.
eJPT — Junior Penetration Tester
Practical hands-on penetration testing certification covering reconnaissance, assessment, and exploitation.
Google Cybersecurity Professional
Security operations, threat intelligence, packet analysis with Wireshark, and Python security automation.
Cloud Computing
Cloud virtualization, storage architecture, distributed computing, and SLA management.
Ready to Build Resilient Systems Together?
Whether you are seeking a senior full-stack engineer, need a penetration testing assessment, or want to discuss backend infrastructure architecture — I look forward to connecting.