Tej Lehal crossarms

Hi There! I am Hartej Lehal

I’m a security-focused Computer Science graduate with 6+ years of development experience building secure, scalable web applications. After working as a Front-End Developer at CXApp and Findspace, and running my own freelance practice, I pursued a graduate certification in Cybersecurity & Artificial Intelligence at Humber Polytechnic. I’m passionate about bridging development expertise with security knowledge to build more resilient systems.

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Skills

Development

  • React

  • TypeScript

  • JavaScript

  • Next.js

  • Python

  • Node.js

  • Django

  • Tailwind CSS

Security & Compliance

  • Splunk

  • Wazuh

  • Wireshark

  • Nmap

  • FTK Imager

  • NIST CSF

DevOps & Tools

  • Git

  • Docker

  • Proxmox

  • Vercel

Projects

Tito's Courts Platform screenshot

Tito's Courts Platform

Next.js | Prisma ORM | Vercel Postgres | Tailwind CSS

Full-stack web platform for a recreational volleyball organization featuring league management, team registration, standings, and scheduling with role-based admin controls and secure data handling.

ML Intrusion Detection System diagram

ML-Based Intrusion Detection

Python | Scikit-learn | TensorFlow | Pandas

Built and evaluated multiple machine learning classifiers (Random Forest, SVM, RNN/LSTM) on network intrusion datasets to detect and classify malicious traffic patterns, achieving high detection accuracy across multiple attack categories.

Cybersecurity Capstone infrastructure diagram

Cybersecurity Capstone

React | Postgres |Proxmox | Django | SSH | Linux

Designed a Project Management Dashboard and deployed a segmented multi-VM environment on Proxmox hosting a Django web application with separate frontend, backend, and database VMs, secured via SSH jump host access controls.

Coterie Brands website screenshot

Coterie

WordPress | WooCommerce | PHP | SASS

Developed and redesigned the Coterie Brand's website using WordPress and WooCommerce as part of freelance web development work.

DROPiN sports pickup game app screenshot

DROPiN

React | Firebase | REST APIs | HTML5 | SASS

A sports pickup game app that helps enthusiasts find and join games near them. Features user authentication with Google Auth and Firebase for real-time data.

Blogs

Let’s P.O.U.R. it all out in A11y
March 31, 2020

Let’s P.O.U.R. it all out in A11y

I recently attended the a11yTO 2020 camp where many well respected people in the accessibility world are there to share their knowledge and vision to all developers...

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