---
title: "Akash Sebastian - Product Security Engineer in Ernakulam | Tal"
description: "Meet Akash Sebastian, Security Researcher | Developer based in Ernakulam. AI stack includes antigravity, codex, and cursor."
image: "https://tal.club/meet/akash-sebastian/share-image"
---

# Akash Sebastian on Tal

## Headline

Security Researcher \| Developer

## About

I'm a security engineer who solves hard problems across cloud infrastructure, application security, AI and LLM systems, and DevSecOps\. 100\+ bug bounty Hall of Fame acknowledgments from Google, Netflix, Apple, Pinterest, SoundCloud, Nokia, Etsy, Mastercard and many more\. Won CTF competitions at national and international levels\. But honestly, the awards aren't what drive me\. I'm motivated by finding vulnerabilities nobody else sees and building systems that make security work as part of how products get built\. I'm comfortable doing both offensive work like penetration testing and red teaming, and defensive work like architecting security platforms and threat modeling\. Recently focused on emerging threats like prompt injection and agentic systems, but solid on fundamentals too: IAM, network segmentation, vulnerability management\. I've built things that move the needle\. AI automation that catches and triages vulnerabilities at scale\. I think about security as an engineering problem\. Every control is code\. Every process can be optimized\. Looking for roles where I can architect security systems across the full stack and help teams build secure products from the start\. If you're working on hard security problems, let's talk\.

## Location

Ernakulam

## AI stack

antigravity

codex

cursor

## Work experience

Product Security Engineer at JUSPAY, May 2025 \- Present · 1 yr 4 mos, Bengaluru, Karnataka, India

Product Security Engineer at Harness, Jan 2025 \- May 2025 · 5 mos, Bengaluru, Karnataka, India

Product Security Engineer at HighRadius, Oct 2023 \- Oct 2024 · 1 yr 1 mo, Hyderabad, Telangana, India

## Education

Master of Computer Applications \- MCA, APJ Abdul Kalam Technological University

[View the original profile](https://tal.club/meet/akash-sebastian)

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