Building secure, intelligent systems for real-world use.

Security-focused software engineer working across cybersecurity, AI/ML, and backend development.

I'm Srijan Kumar, a security-focused software engineer building intelligent, resilient systems at the intersection of cybersecurity and AI/ML. I design scalable backend solutions that prioritize real-world security and usability.

My experience includes working as an AI Intern at SPARKIIT and contributing as a Guest Blogger at the DEV Community, where I break down complex engineering and security problems into actionable solutions.

Core Expertise

Cyber & Secure Development

Cybersecurity Fundamentals Secure Software Development (C++/Python) Vulnerability Analysis (Simulations) PostgreSQL (Database Security) Threat Modeling

AI & Machine Learning

Supervised Learning (Classification/Regression) Feature Engineering (StandardScaler, One-Hot, TF-IDF) Time-Series & NLP Projects Scikit-learn

Languages & Tooling

C/C++ & Python Cloud Computing Fundamentals Technical Writing & SEO (Blogger) Web Development (HTML/CSS/JS)

Professional Experience & Contributions

Guest Blogger, Technical Writer & Ghost Writer

DEV Community (Forem) | Nov 2023 – Present

  • Published 25+ high-impact technical articles on cybersecurity, C++, and AI, achieving 12,000+ cumulative organic views in 6 months through strategic SEO optimization.
  • Authored 30+ ghostwritten articles across diverse tech topics, collaborating with the community to identify trending topics and increasing article relevance by 25%.
  • Educated beginner-to-intermediate developers through clarity-focused content structure, resulting in consistent feature placements.

Artificial Intelligence Intern

SPARKIIT | June 2025 – August 2025

  • Developed 5 end-to-end ML projects (classification, regression, recommendation), achieving 82-100% model accuracy through systematic data preprocessing.
  • Engineered modular codebase architecture, reducing code complexity by 40% and enabling 20% faster project iteration cycles.
  • Implemented supervised learning algorithms using Scikit-learn, applying advanced feature engineering techniques (StandardScaler, One-Hot, TF-IDF).

Technical Trainee - Industrial Training

Indian Railways (Modern Rail Coach Factory) | June 2025 – July 2025

  • Completed one-month technical training, gaining practical exposure to industrial processes, machinery operations, and workflow optimization.
  • Applied analytical and problem-solving skills to understand manufacturing systems and technology integration.

Web Development Intern

CodSoft | April 2025 – May 2025

  • Developed 3 responsive front-end projects (landing page, calculator app, portfolio website) using HTML5, CSS3, and JavaScript.
  • Implemented CSS Grid and Flexbox layout systems to create pixel-perfect UI designs with 95% cross-browser compatibility.

Selected Projects & Simulations

MM-CT-DAS: Multi-Modal Threat Detection System

Focus: Cybersecurity, AI/ML, C++

A Production-Ready Cybersecurity Detection System utilizing trained ML models for comprehensive threat analysis. Showcases skills in C++, security architecture, and AI-driven defense.

View GitHub Repo

ThreatFusion: Modular Threat Detection Suite

Focus: Multi-Layered Security, C++, Python, Go

Modular project combining C++, Python, and Go to deliver multi-layered threat detection through network scanning, log analysis, and behavioral monitoring for comprehensive security assessment.

View GitHub Repo

ShieldBlocker-V8: Cross-Browser Ad Blocker

Focus: Browser Security, JavaScript, WebExtensions

A lightweight, cross-browser (Chrome and Firefox) ad blocker powered by WebExtension APIs. Blocks intrusive ads using static filter rules and allows per-site control.

View GitHub Repo

AIO-SDMS: All-in-One System Monitoring Suite

Focus: Diagnostics, System Health, C++

A comprehensive tool suite combining battery monitoring, hardware diagnostics, and system package management into a single application with multiple interface options. Ongoing development.

View GitHub Repo

ThreatViz: Cybersecurity Threat Intelligence Dashboard

Focus: Threat Intelligence, Network Security, C++

ThreatViz is a modular cybersecurity project that combines C++, Python, and Go to deliver multi-layered threat detection through network scanning, log analysis, and behavioral monitoring for comprehensive security assessment.

View GitHub Repo

PDF Downloader

Focus: PDF Management, Downloading, and Processing

A professional Tkinter-based PDF downloader with concurrent downloads, network speed monitoring, and pause/resume functionality. Easily build standalone executables for Windows, Linux, and macOS.

View GitHub Repo

Education & Certifications

Key Certifications & Training

  • Deloitte Australia - Cyber Job Simulation

    Focus: Practical Cyber Scenarios, Incident Response.

  • Tata Group - Cybersecurity Analyst Job Simulation

    Focus: Analyst Workflow & SOC Triage.

  • Career Essentials in Cybersecurity (Microsoft & LinkedIn)

    Focus: Foundational Security Principles.

  • Technical Training at Modern Rail Coach Factory

    Focus: Industrial processes and technology integration.

  • Acmegrade Certification for Cybersecurity

    Focus: Technical Training & Concepts.

Education

  • B.Tech, Computer Science and Engineering

    I. K. Gujral Punjab Technical University (IKGPTU) | Expected: July 2027

  • Senior Secondary (11th & 12th) - Math & Science

    Maharani Kalyani College | 2021 - 2023

Get In Touch

I'm actively seeking opportunities to build secure and intelligent systems. Let's collaborate!