Hi, I'm Zeeshan 👋
Software Engineer | Cybersecurity Consultant | Security Researcher (Bug Bounties & Pentesting)

About Me

I started my tech journey at 17 as a bug bounty hunter, deeply immersed in the world of cybersecurity. It was exciting and intense, filled with late-night hunts and constant learning. But over time, I realized I was only scratching the surface—repeating familiar patterns without truly understanding how systems were built.

That curiosity pushed me toward development. I wanted to go deeper—learn how the internet works, how real-world systems are architected, and how developers bring ideas to life. The more I explored, the more I fell in love with building things from the ground up.

I transitioned into Full Stack Development to connect the dots between security, code, and architecture. Now, I don't just identify vulnerabilities—I understand the systems behind them and can contribute to building secure, scalable solutions.

Over time, I’ve come to see development as a blend of logic and creativity, where every line of code shapes a bigger picture. I still participate in bug bounties occasionally, purely for fun, but my main focus is on building meaningful technology that solves real problems.

Outside of tech, I love listening to music—and sometimes even making my own. It’s my creative escape and a way to stay inspired.

Always learning. Always building.

Professional Summary

  • 5+ years of experience in software development.
  • 4 years of experience in cybersecurity.
  • Skilled in both monolithic and microservices-based architecture.
  • Strong hands-on experience with cloud platforms (AWS, GCP).
  • Proficient in database design and development (SQL & NoSQL).
  • Familiar with Agile methodologies and project management tools like Jira.

Work Experience

Rebolet

July 2024 - January 2025
Berlin, Germany - Remote
Senior Software Engineer
  • Planned and executed a Product Information Management (PIM) system with multi-channel sync using Vue.js, Directus, Express.js, GCP, and OpenAI for auto-enrichment. Eliminated 60% of manual workflows and reduced operational overhead.
  • Designed event-driven workflows with webhooks and queuing systems for real-time product sync and inventory updates, enabling faster launches and scalable integrations.
  • Managed a remote tech team, ensuring code quality, security, and best practices, while leading Agile ceremonies and writing Jira tickets, resulting in a 30% faster release cycle, reduced production incidents by 25% , and cutting dependency bottlenecks by 40%.
  • Pitched a centralized PIM B2B2C SaaS to C-suite stakeholders and multiple businesses, onboarding multiple clients and boosting revenue by 10% through a monthly-based pricing model while aligning the product with their multi-channel eCommerce needs.
Tech Stacks:
Typescript
NodeJs
NestJs
ExpressJs
Directus
Vue
GCP (CloudSQL, Cloud Storage, Cloud Run, Big Query, Cloud Logging And Monitoring etc.)
Sentry
Cypress
Jest
Docker
Gitlab CI/CD
Postgres
Firebase
Redis
Sass
Vite + React
Zod
Redux
AWS (Amplify, CloudWatch, DynamoDB, API Gateway, S3 etc.)
Serverless
Terraform
Industry:
B2C, B2B and B2B2C SaaS and versions of our app
E-Commerce
Retail
Re-Commerce
Logistics

Rebolet

July 2022 - July 2024
Berlin, Germany - Remote
Software Engineer
  • Led development of an MVP return management system for our customers using React, Vite, and AWS Amplify, integrating cloud services (DynamoDB, Lambda) for secure, scalable backend operations. Executed CI/CD deployment on AWS, reducing manual effort by 50%, and pitched it to C-suite stakeholders.
  • Designed and developed a customizable Supplier Portal Dashboard using NestJS, Vue.js, and GCP within a monorepo structure. Leveraged serverless architecture (Firebase, Google App Engine) to enhance scalability and performance. Automated document collection, reducing supplier onboarding time from 5 days to 2 days.
  • Collaborated with developers and designers in Agile sprints to build TestNGrade, a grading and pricing system for 500+ suppliers using Vue.js, Express.js, and GCP (Firebase Functions). Refactored APIs to boost backend performance by 40% and implemented automated testing with cypress. Optimized frontend via tree shaking(Webpack), reducing app size by 30% and load times by 20%.
Tech Stacks:
Typescript
NodeJs
NestJs
ExpressJs
Directus
Vue
GCP (CloudSQL, Cloud Storage, Cloud Run, Big Query, Cloud Logging And Monitoring etc.)
Sentry
Cypress
Jest
Docker
Gitlab CI/CD
Postgres
Firebase
Redis
Sass
Serverless
Auth0
Industry:
B2C, B2B and B2B2C SaaS and versions of our app
E-Commerce
Retail
Re-Commerce
Logistics

HackerOne

August 2017 - January 2021
San Francisco, California - Remote
Security Researcher
  • Recognized by industry leaders like Meta, Airbnb, Toyota, Snapchat, HackerOne, Shopify, and Spotify for identifying security vulnerabilities impacting 100M+ daily users. Notably, Authored a top-ranked HackerOne report, on Nov 10, 2017, which led the HackerOne Hacktivity dashboard for two months, serving as a key resource for security researchers.
  • Earned several badges, including Greybeard for submitting valid reports for more than one month in a row, Good Samaritan for resolving issues with teams that do not pay, Belle of the Ball for a top-ranked Hacktivity report which maintained a high-impact presence in the security community, contributing to industry best practices and Hacking Hackers. https://hackerone.com/zeesek/badges

Education

Bahria University E-8 Campus

February 2020 - February 2024
Islamabad, Pakistan
Bachelors In Information Technology

Technical Skills

TypeScript
JavaScript
Python
Go
SQL
Next.js
Vue.js
Express.js
Nest.js
GoFiber
FastApi
PostgreSQL
MongoDB
DynamoDB
Firestore
Redis
Supabase
Node.js
React
Vite
Redux
Vuex
Tailwind CSS
Amplify UI
Shadcn UI
Magic UI
Next UI
SCSS (Sass)
Ant Design (Antd)
Styled Components
GraphQL (Apollo Client/Server)
React Hook Form
Zod
TanStack Query
Directus
Sanity
I18n
next-intl
Auth0
WebRTC
Socket.io
tRPC
Apache Kafka
Git
Docker
GitHub Actions workflows
GitLab CI/CD
Sequelize
Prisma
Terraform
Jest
Cypress
Sentry
Nx
TurboRepo
GCP (App Engine, CloudSQL, Cloud Storage, Cloud Run, Big Query etc.)
AWS (Amplify, EC2, RDS, Cognito, Lambda, API Gateway, VPC etc.)
Projects

I like building things

I've worked on a variety of projects, from simple websites to complex web applications and I like builiding tools that make life easier for other devs. Here are a few of my favorites.

VAssist

Developed a Virtual Assistance Platform for users where they can connect on a single platform to have an interaction and exchange information live, they can get help or get paid for providing help.

Next.js
Typescript
TailwindCSS
Shadcn UI
framer-motion
Redux
Stripe
WebRTC
Socket
Nestjs
Nodejs
Mongodb
Prisma
Mau
Vercel
Sentry
Turbo Monorepo

Product Information Manager

Developed a Product Information Management System to automate and govern product data.

Vue.js
Typescript
PostgreSQL
Directus
GCP
Nodejs
KafkaJS
Sass
OpenAI
Docker
Jest
Cypress

Supplier Portal

Designed a Supplier Portal Dashboard that allowed suppliers to monitor and manage transactions, communications, and performance metrics related to their business with the company.

Vuejs
Typescript
Javascript
Nodejs
Nestjs
Firebase
Google App Engine
Auth0
SQL
I18n
Nx Monorepo
Serverless

React Custom Hooks VSCode Extension

Developed a VS Code extension to streamline real-time development by providing ready-to-use React custom hooks. Simplified workflow, reduced boilerplate, and improved code consistency for JavaScript and TypeScript projects by dynamically adapting hooks to project needs.

VSCE
Typescript
Javascript
Nodejs
open-source

Active Tracker

Developed a Workout Tracker App to keep track of all your activity inside gym.

Javascript
Vue 3
Tailwind CSS
Supabase
Supabase Auth

Customer Return Portal

Developed a Return Management System MVP to automate returns from customers.

Typescript
AWS
DynamoDB
Zod
Vite + React
I18n
Tailwind CSS
Amplify UI

And much more. To explore additional projects, please checkout my Github.

Contact

Get in Touch

Want to chat? Just shoot me a dm with a direct question on LinkedIn and I'll respond as soon as I can.