My only competition is yesterday's version of me. That's where the impossible gets solved — and why everything I ship is better than what came before.
I don't just
secure systems.
I build them.
I'm Shashank Mishra — a cybersecurity professional, ethical hacker, and full-stack developer. I've been writing code since 2019, back in class 5. No degree opened this door; obsession did.
As CEO & Founder of Zero Day Arena, I built a platform for ethical hacking competitions and community cyber defense — one that's been used at IIT. I also built Stockmedix, and serve as CTO at COP-G.
I've spoken at IIT twice, judged their CTF competitions, and went from competitor to organizer at Nepal's biggest hacking event. I co-founded Secure with Techies and Secure Society to push cyber awareness where it's needed most.
What I actually do is simpler than the titles suggest: I find solutions. Especially to the problems people have already given up on.
Invited to the rooms
that matter.
Guest Speaker
Indian Institutes of Technology
Invited to speak at IIT campuses on offensive security, ethical hacking, and building cyber defense infrastructure.
CTF Judge
Indian Institutes of Technology
Judged Capture-The-Flag competitions at IIT — evaluating exploit chains, methodology, and technical depth.
Player → Organizer
Nepal's Biggest Hacking Event
Competed in Nepal's largest hacking event in 2023, then crossed the table to help organize it.
Six years,
one obsession.
First line of code
Started coding at ten years old. No bootcamp, no mentor — just a keyboard and an obsession with figuring out how things worked underneath.
Player → Organizer
Competed in Nepal's biggest hacking event, then crossed the table and helped organize it. The year the hobby became a career.
Building the arena
CEO of Zero Day Arena, CTO at COP-G, co-founder of two security education platforms, and a speaker and judge at IIT.
Everythingisimpossibleuntilsomemadmanmakesitpossible.
I find the solution. That's the whole job.
Two platforms.
A whole arsenal.
Zero Day Arena
CEO & Founder
A cybersecurity platform for ethical hacking competitions, CTF challenges, and community cyber defense infrastructure. Deployed and used at IIT for competitive security events.
Stockmedix
Builder
A full-stack platform built end to end — architecture, secure backend, and user-facing product. Designed for scale and built with security baked in from the first commit.
Attack and defend,
build and break.
Security
- Penetration Testing
- Vulnerability Assessment
- SOC Operations
- Cyber Defense Design
- Red Team Ops
- Exploit Development
Web Exploitation
- SQL Injection
- XSS / CSRF
- Auth Bypass
- SSRF / XXE
- WordPress Exploitation
- Privilege Escalation
Engineering
- Full-Stack Development
- Platform Architecture
- Secure by Design
- Scalable Systems
- API Design
- DevOps
Tools & Platforms
- Burp Suite
- Metasploit
- Nmap / Masscan
- Wireshark
- Docker
- Custom Tooling
Let's build
mutual trust.
I don't work with everyone — I work with people who are serious about what they're building. If that's you, I'm all in.
Security consulting · Platform builds · CTF collaboration