Atharv Mittal

Professional Journey

Work Experience

Founder / Full-Stack Web Developer

Independent Web Development Business · Oct 2025 – Present · Remote

Built and deployed production-ready applications for approximately 50 local business clients using React, Next.js, TypeScript, Node.js, Supabase, and Stripe — managing the full delivery lifecycle end-to-end
Implemented frontend, backend, database design, authentication, and payment workflows for real customer-facing systems, applying secure coding practices throughout
Generated approximately $5,000/month in revenue through recurring and project-based web development services while operating fully remotely

Cyber Security Intern

Centrient Pharma · Oct 2025 – Dec 2025 · Gurugram, India

Supported SOC operations across 5,000+ enterprise endpoints using Microsoft Defender and Mimecast, monitoring and triaging 200+ daily security alerts to identify and escalate threats
Investigated security events to assess severity, identify indicators of suspicious or malicious behavior, and escalate confirmed threats for response and containment
Performed log analysis across Active Directory and cloud-connected environments to support incident investigations and improve operational security visibility
Learned enterprise ticketing and escalation workflows end-to-end — following incidents from alert generation through analyst handling, triage, and coordinated response
Collaborated with IT teams to enforce 3 key security policies, strengthening baseline mitigations and security hygiene across enterprise systems

CompTIA Security+ (SY0-701)

Certified January 2026

Featured Work

Projects

Adversary Emulation & Detection Lab

January 2026 · MITRE ATT&CK | Wazuh, Elastic, Sigma

Designed and executed a full adversary emulation environment simulating 10+ MITRE ATT&CK techniques across Discovery, Persistence, Lateral Movement, and Collection on Windows and Linux hosts
Deployed Wazuh and Elastic SIEM to ingest and correlate endpoint telemetry, enabling end-to-end behavioral visibility of simulated attacker activity
Authored 10+ custom Sigma detection rules mapped to specific ATT&CK technique IDs, building a reusable detection content library and strengthening detection engineering skills

TinyVulnScanner

Sep 2025 – Nov 2025 · Python Security Automation

Engineered a multi-threaded Python scanner capable of probing 500+ ports concurrently (~70% faster than sequential), automating detection of reflected XSS and SQL injection vulnerabilities
Implemented detection across critical OWASP Top 10 categories and generated structured HTML and JSON reports with per-vulnerability severity ratings for clear remediation workflows

Prompt Optimiser

2026 · Chrome/Edge Extension | Llama 3.3 70B, Groq

Built and shipped a production browser extension running user prompts through a 6-stage AI optimization pipeline powered by Llama 3.3 70B via Groq API
Designed the full browser-side architecture including real-time DOM injection, API integration, and state management — compatible across ChatGPT, Claude, and Gemini
Strengthened hands-on experience in browser-side engineering, applied LLM tooling, and user-focused software design

Proto Paper

January 2026 · Hackathon | React, Python

Built a full-stack tool that converts uploaded research PDFs into actionable experiment guides — including required materials lists and runnable Python simulation code
Led frontend development and contributed to backend implementation, delivering a working product under hackathon time constraints
Reduced research operationalization time from hours to under 2 minutes by automating the translation of dense technical content into reproducible workflows

EDUAI – AI-Powered Study Scheduler

Jan 2025 – Apr 2025 · Python, ML, Canvas LMS

Built an AI-assisted scheduling system ingesting data from 5+ courses and 30+ tasks via Canvas LMS, applying ML techniques to estimate assignment effort and optimize study allocation
Evaluated real-world limitations of predictive modeling on subjective workload data, developing practical intuition for data quality, model reliability, and applied ML challenges

AI Outfit Recommender

2025 · Python, Machine Learning

Developed an AI-powered outfit recommender generating top-N clothing combinations using item attributes and user preferences across occasion and seasonal context
Identified key system limitations related to data sparsity and personalization depth, informing future ML-driven improvements in preference modeling

Expertise

Skills & Technologies

SIEM & Detection Engineering

Wazuh, Elastic, Sigma Rules, Custom Detection Rules, Log Analysis, Threat Hunting, MITRE ATT&CK Mapping

Endpoint & Email Security

Microsoft Defender, Mimecast, EDR/XDR Platforms, Alert Triage, Incident Escalation, Enterprise SOC Operations

Application & Web Security

OWASP Top 10, Vulnerability Scanning, Reflected XSS, SQL Injection, Web App Pen Testing, Security Automation

Programming & Scripting

Python, JavaScript, TypeScript, Bash, PowerShell, SQL — security tooling, automation, and full-stack development

Full-Stack Development

React, Next.js, Vite, Tailwind CSS, Node.js, Supabase, Stripe — production-grade client-facing systems

Systems & Networking

Windows, Linux, Active Directory, DNS, DHCP, TCP/IP, TLS/SSL, Routing Fundamentals, Cloud Environments

AI & LLM Tooling

Groq API, Llama 3.3 70B, Browser Extension Development, Prompt Engineering, AI-powered Automation, API Integration

Offensive Security

CTF Competitions, Hack The Box, Adversary Emulation, Reverse Engineering, OSINT, Pwn, Cryptography Challenges

Competitions & Practice

Technical Activities

CTF Competitions

2026 · Solo Competitor

LACTF 2026 — Solo · Top 100 · Feb 7–9, 2026 · Solved challenges across web, crypto, reverse engineering, pwn, and miscellaneous categories; published writeups on GitHub
0xFun CTF 2026 — Solo · Top 110+ · Feb 12–14, 2026 · Completed challenges spanning web, pwn, crypto, forensics, and OSINT-oriented problem solving
BSides CTF — Solo · Mar 20, 2026 · Participated primarily in web-focused security challenges

Hack The Box

Ongoing · Hands-On Offensive Security

Completed the WingData machine, strengthening practical skills in offensive security analysis, enumeration, and system investigation
Practiced across challenge categories including web exploitation, binary exploitation, cryptography, forensics, and OSINT

Community

Leadership

Head of Cybersecurity Club

KBDAV · Jan 2022 – Mar 2023 · Chandigarh, India

Led cybersecurity awareness initiatives for students and teachers, covering phishing, hacking techniques, and core security fundamentals
Organized workshops and events to promote practical security knowledge and digital safety across the school community

Volunteer

Local NGO · Jun 2024 – Aug 2024 · Chandigarh, India

Supported community outreach programs focused on digital literacy and online safety education