DevOps & Infrastructure Engineer

Rezwan Ahmed Ratul

Bridging code & systems through automatedCI/CD pipelines, Proxmox homelabs,and high-availability multi-WAN networks

Infrastructure

CI/CD Automation

Containerization

Multi-WAN

Linux & Homelab

High Availability

Observability & Security

Automate • Deploy • Scale

Services

Architecting resilient systems, reproducible builds,and high-uptime multi-WAN infrastructurefor cloud and homelab environments

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

Bridging software development and systems operationswith automated pipelines, resilient networks,and self-hosted cloud infrastructure
Md. Rezwan Ahmed Ratul
I am a Computer Science & Engineering undergraduate at Khwaja Yunus Ali University (CGPA 3.73 / 4.00) focused on DevOps, Cloud Infrastructure, and Systems Engineering.I enjoy building hands-on projects, running my own Proxmox VE homelab, and demystifying Linux internals and network protocols. Combining strong algorithmic foundations from competitive programming (ICPC Asia West Regionals 2025) with practical production skills in Docker, CI/CD, and multi-WAN routing, I aim to build high-availability systems that never go down.
Architecting a 24/7 Proxmox VE homelab with LXC containers, Docker, and Traefik reverse proxy
Configuring OpenWrt multi-WAN routing (mwan3), VLAN segmentation, and WireGuard secure tunnels
Deploying automated GitHub Actions CI/CD pipelines and containerized microservices
ICPC Asia West Regionals 2025 qualifier & 11th Nationally in Bangladesh ICT Olympiad (DUET)

Pillar 01 • Competencies

Technical Skills

01

DevOps & Infrastructure

{ 7 Tools }
Docker/Docker Compose/GitHub Actions/CI/CD Pipelines/Traefik/Git/Linux Admin
02

Networking & Homelab

{ 6 Tools }
Proxmox VE/OpenWrt (VLANs, mwan3)/Multi-WAN Failover/WireGuard VPN/Cloudflare WARP / Tunnel/Pangolin
03

Languages & Scripting

{ 7 Tools }
Bash / POSIX Shell/Python/TypeScript/JavaScript/C / C++/Java/SQL
04

Databases & Storage

{ 5 Tools }
PostgreSQL/MySQL/Supabase/Prisma ORM/MongoDB

Pillar 02 • Problem Solving

Competitive Programming

01

ICPC Asia West Regionals 2025

Qualified & Solved 2 Problems

Competed in the prestigious International Collegiate Programming Contest (ICPC) Asia West Regionals.

02

Bangladesh ICT Olympiad 2025 (DUET)

Ranked 11th Nationally

Achieved 11th position nationwide among university participants across Bangladesh.

03

University Programming Contests (KYAU)

1st Runner-Up (2025) & Multiple 1st Places

Earned 1st Runner-up award (2025) and multiple 1st-place campus contest victories.

04

Competitive Programming

140+ Problems Solved

Codeforces (Max Rating: 1042, 35+ rated rounds); active on Beecrowd and CodeChef.

Pillar 03 • Foundations

Academic Background

01

Expected Graduation: July 2028

Khwaja Yunus Ali University

BSc in Computer Science & Engineering (Third-Year)

Sirajganj, Bangladesh

CGPA: 3.73 / 4.00
02

Session: 2021 – 2022

Shahzadpur Government College

Higher Secondary Certificate (HSC), Science

Shahzadpur, Sirajganj

GPA: 5.00 / 5.00

Featured DevOps & Systems Projects

Works

Infrastructure in action, engineered to scale.Automated pipelines, self-hosted homelabs,and high-uptime multi-WAN routing

Personal Homelab & Multi-WAN Network

Jan. 2025 – Present

A 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.

Proxmox VEOpenWrtmwan3DockerWireGuardTraefik
Personal Homelab & Multi-WAN Network-bg-imagePersonal Homelab & Multi-WAN Network-image

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.

DockerGitHub ActionsNestJSNext.js 15PrismaPostgreSQL
MikroTik ISP Management Platform-bg-imageMikroTik ISP Management Platform-image

OpenWrt Access Manager & Sync Daemon

Aug. 2026 – Present

Web 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.

POSIX Shell DaemonOpenWrtNext.jsSupabaseSHA-256Docker
OpenWrt Access Manager & Sync Daemon-bg-imageOpenWrt Access Manager & Sync Daemon-image

PlayFlix – Movie & Anime Streaming Platform

Mar. 2026 – Present

High-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.

TanStack StartReactTypeScriptTailwind CSSSSR
PlayFlix – Movie & Anime Streaming Platform-bg-imagePlayFlix – Movie & Anime Streaming Platform-image

Blockchain-Based Voting System

2025 – 2026

Decentralized 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.

SolidityEthereumFastAPIPythonWeb3.jsMySQL
Blockchain-Based Voting System-bg-imageBlockchain-Based Voting System-image
AutomationHigh AvailabilityCI/CD PipelinesContainerizationResilient NetworksZero Downtime

“ Let’s architect
resilient, automated
& scalable systems together “

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Deploy • Automate • Scale

Contact

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