DevOps & Infrastructure Engineer
Rezwan Ahmed Ratul
Infrastructure
CI/CD Automation
Containerization
Multi-WAN
Linux & Homelab
High Availability
Observability & Security
Automate • Deploy • Scale
Services
CI/CD & Deployment Automation
Automating the journey from commit to production with reproducible builds, containerization, and zero-downtime workflows
01GitHub Actions CI/CD pipelines & automated test runners
02Docker containerization & multi-stage image optimization
03Multi-branch deployment strategies (Main/Prod & Staging)
04Automated container registry publishing & version tagging
Homelab & Virtualization (Proxmox)
High-availability private cloud infrastructure, virtual machine clustering, and self-hosted microservices
01Proxmox VE hypervisor, LXC containers & KVM virtualization
02Traefik reverse proxy with automated SSL/TLS termination
03Snapshot-based disaster recovery & backup automation
04Resource isolation, hardware passthrough & metrics monitoring
Networking & Multi-WAN Routing
Resilient network topologies, automated failover routing, and secure zero-trust remote access tunnels
01OpenWrt firmware tuning & VLAN traffic segmentation
02Multi-WAN load balancing & failover routing via mwan3
03WireGuard VPN & Cloudflare WARP/Tunnel secure ingress
04MikroTik PPPoE server integration & bandwidth traffic control
Linux Systems & Scripting Daemons
Robust POSIX shell automation, kernel-level networking tools, and high-integrity state verification
01POSIX shell sync daemons & background automation services
02Cryptographic state validation (SHA-256 router sync tracking)
03Linux server hardening, SSH key auth & firewall (iptables)
04PostgreSQL, Supabase & MySQL database provisioning
Homelab Tinkerer • Infrastructure Automator
About
Pillar 01 • Competencies
Technical Skills
DevOps & Infrastructure
Networking & Homelab
Languages & Scripting
Databases & Storage
Pillar 02 • Problem Solving
Competitive Programming
Problems Solved
Codeforces, Beecrowd & CodeChef
Regional Finalist
Asia West Regional Contest
National Rank
Bangladesh ICT Olympiad (DUET)
Academic CGPA
Khwaja Yunus Ali University
ICPC Asia West Regionals 2025
Competed in the prestigious International Collegiate Programming Contest (ICPC) Asia West Regionals against the top university teams across South Asia.
Bangladesh ICT Olympiad 2025 (DUET)
Achieved 11th position nationwide among university participants across Bangladesh in competitive algorithmic challenges.
University Programming Contests (KYAU)
Earned 1st Runner-up award (2025) and multiple 1st-place campus contest victories, representing the university's competitive programming team.
Online Competitive Programming
Active competitive programmer on Codeforces (Max Rating: 1042, 35+ rated rounds), Beecrowd, and CodeChef focusing on discrete mathematics and graph algorithms.
Pillar 03 • Foundations
Academic Background
Khwaja Yunus Ali University
BSc in Computer Science & Engineering
Sirajganj, Bangladesh
Shahzadpur Government College
Higher Secondary Certificate (HSC), Science
Shahzadpur, Sirajganj
Featured DevOps & Systems Projects
Works
Personal Homelab & Multi-WAN Network
Jan. 2025 – PresentA 24/7 Proxmox VE homelab running virtual machines, LXC containers, and self-hosted services behind Traefik reverse proxy. Configured OpenWrt with VLANs for traffic segmentation, mwan3 for multi-WAN failover across multiple ISP uplinks, and WireGuard + Cloudflare WARP/Pangolin for zero-trust remote access.
MikroTik ISP Management Platform
Sept. 2026 – Present (In Progress)Web-based ISP platform with Next.js 15, NestJS, and PostgreSQL (Prisma ORM). Deployed operational PPPoE user management with Docker, powered by an automated GitHub Actions CI/CD pipeline on main while maintaining isolated staging branches for billing modules.
OpenWrt Access Manager & Sync Daemon
Aug. 2026 – PresentWeb application to control OpenWrt router client access via MAC addresses with Next.js and Supabase (PostgreSQL). Features a staging workflow so network access changes are reviewed before applying, backed by SHA-256 version tracking and a POSIX shell sync daemon running on the router.
PlayFlix – Movie & Anime Streaming Platform
Mar. 2026 – PresentHigh-performance media streaming platform built with TanStack Start, React, TypeScript, and Tailwind CSS. Features SSR and TanStack Query for low-latency data fetching from TMDB and AniList APIs, with client-side watchlist persistence and resilient iframe streaming.
Blockchain-Based Voting System
2025 – 2026Decentralized voting application combining Solidity smart contracts on Ethereum with a Python FastAPI backend, MySQL database for voter verification, and MetaMask wallet authentication via Web3.js.
“ Let’s architect
resilient, automated
& scalable systems together “
Deploy • Automate • Scale