rohit raj rajana
network security engineer · germany
i secure networks for a living: firewalls, zero trust, cloud infrastructure, and the bits in between. 5+ years across palo alto ngfw, cisco asa, aws, and enterprise security tooling.
outside of work i'm building homelab infrastructure, automating workflows with n8n, writing about applied ai in security engineering, and learning german.
know me
age 30.000000000it started with a simple question: how does all of this actually connect? networks. systems. people. the links nobody notices until they break. that curiosity pulled me in. 5+ years later, i'm the one mapping the flow, spotting the weak links, and making sure things run the way they're supposed to, not the way attackers hope they will.
along the way, i earned a master's in management information systems from the university of illinois chicago, usa, and before that, a bachelor of technology in computer science from gitam university, visakhapatnam. i'm also ccna certified (cisco certified network associate): part engineer, part keeper of the blinking lights. my job is keeping things up and running.
faith in god and curiosity drive me. faith keeps me grounded. curiosity keeps pulling me forward.
so i build, i learn, and i question things. if i've done something twice, i script it.
between clean network diagrams and late-night troubleshooting, i share what actually works. i skip theory that only sounds smart.
what started as curiosity about how packets move across networks became a full career. 5+ years deploying palo alto ngfw, cisco asa, arista switching, and zero trust architectures. against a 20-year career arc, it's still early days.
if a task happens more than twice, i automate it, and n8n is my primary tool. i've built pipelines for content scheduling, receipt processing, birthday messages, and more. these days i spend most of my thinking time on ai and security engineering.
shooting with a sony alpha a6700. started with street photography and architecture. you can follow the photography work at @travellin.soldier →
training is a non-negotiable part of my week. mostly compound lifts. consistency over intensity.
semifinalist in team doubles at UIC's 2024 intramural tournament. the only sport where i actually enjoy the competitive pressure.
long-term focused. heavily influenced by naval ravikant's philosophy on wealth creation: own equity, not time.
tech & gadgets
software
gaming
projects
i build, i break, i fix, i defend. here is a mix of homelab security research, automation pipelines, and infrastructure work.
penetration testing and ad exploitation in a homelab: kerberoasting, pass-the-hash, smb/llmnr spoofing, and ntlm relay.
homelabpentestingactive directoryosint investigations using maltego, theharvester, and shodan. built sock puppet accounts, automated data collection, and produced threat intelligence reports.
homelabosintproduction-hardened n8n docker environment with portainer, watchtower, crowdsec, and docker socket proxy.
dockersecurity hardeningcentralizing osint tooling into one dashboard for faster recon workflows.
in progressa browser extension that flags suspicious links and sender patterns before a click happens.
in progresswatches dns query patterns for signs of data exfiltration disguised as normal lookups.
in progresszimablade 7700 running casaos/debian. pi-hole, tailscale, portainer, nextcloud, jellyfin.
infrastructureself-hosteddiscovers and maps active devices. next step: a clean visual topology output.
in progressbaselines normal traffic patterns and flags deviations.
in progressdeploying and tuning snort/suricata rule sets for real-time traffic inspection.
in progressend-to-end n8n workflow: google sheets → gpt-4o generation → approval gate → auto-publish to linkedin.
n8ngpt-4on8n pipeline that monitors email for receipts, extracts structured data using ai, and auto-generates invoices.
n8ndocument aireads google calendar & contacts, generates personalized birthday messages with gpt-4o, routes through approval gate.
n8ngoogle apia living record of what i'm building and learning this year. last update: october 2026
self-hosted server with casaos/debian
guide coming soonall the workflows i'm running locally
guide coming sooncert prep structured in obsidian
guide coming soonportainer, watchtower, crowdsec, socket proxy
guide coming soonsoc 101, linux 101, active rooms
activemachines and ctf challenges
activeresources
free notes and downloads, the guides i'm writing, and the books that shaped how i think.
ztna in a small org without enterprise licensing
coming soonhomelab build guide: casaos, portainer, tailscale
coming soonautomating repetitive security ops with n8n and ai
coming soonchancenkarte process, job market, salary expectations
coming soonbeginner ethical hacking environment at home
coming soonbooks that stuck with me, with one line on what i took from each.
see my full shelf on goodreads →store
things i've made: books, guides, and tools worth your time.
cards, paypal, and more. worldwide checkout.
shop on gumroad →upi, netbanking, and cards. built for india.
shop on instamojo →ON
FILE
security engineer.
educator. builder.
5+ yrs enterprise networks · chevron · bath & body works · TCS
helping people learn, build, and grow. theory only where it helps.
sessions via zoom or google meet · 60 or 90 min · CET (UTC+1) · also works for CST & IST · english & telugu
five 1:1 sessions for the stuff that doesn't fit a cert syllabus: figuring out direction, building momentum, or getting unstuck.
anyone drifting, switching jobs or majors without knowing why.
anyone feeling foggy, on autopilot, or worried about wasting time, at any age.
anyone whose fitness apps fizzled out after two weeks.
students, job seekers, freelancers, creators.
students and professionals who want a real roadmap, not generic search results.
ready to begin a mission?
free 20-min intro call · no commitment · no pressure
contact
have a question, a collab idea, or just want to say hi? drop a message below.
form not loading? email rohit7rajana@gmail.com or message me on linkedin.
| linkedin.com/in/rohit7raj → | |
| instagram.com/rooh7t.studios → | |
| YouTube | youtube.com/@itsrooh7t → |
| Photography | instagram.com/travellin.soldier → |
| Medium | medium.com/@rooh7t → |
| Buy Me a Coffee | buymeacoffee.com/rooh7t → |