Shubhankar Singh
aka Saimson
Cyber Security Consultant · Software Engineer · Researcher
Breaker of systems.
Builder of solutions.
I'm Shubhankar Singh — known online as Saimson — a Cyber Security Consultant at Ernst & Young (EY) with a specialization in Web, API, Infrastructure, and Network security assessments. I have experience across multiple software and security companies as both a developer and penetration tester.
My work bridges offensive security and software engineering. I break systems to make them stronger, while also building production applications for clients across industries. Whether it's a black-box web app assessment, an Android APK deep-dive, or a Flutter mobile app — I approach every engagement with the same methodology: thorough, documented, and 100% authorized.
Outside client work, I actively publish OSCP prep notes, Hack The Box VM walkthroughs, and buffer overflow research on GitHub — contributing back to the community that taught me.
Experience Timeline
Web, API, Infrastructure and Network security assessments for enterprise clients. Vulnerability assessment and penetration testing across complex environments. Delivering security insights that protect reputation, trust and long-term resilience.
Dual-role engagement combining offensive security assessments with custom security tooling development. Conducted black and grey box web application penetration tests, mobile app security reviews, and OT security audits.
Delivered web applications, mobile apps and security assessments for international clients. Projects included e-commerce platforms, Flutter apps with Firebase, and WordPress deployments with integrated payment gateways.
Co-founded an on-demand car washing startup delivering professional cleaning to your doorstep via a mobile app. Led product architecture, app development, and technical operations from ideation to launch.
Certifications & Achievements
"Don't just aspire to make a living.— Denzel Washington
Aspire to make a difference."