Divya_Mohan_Resume
Divya Mohan
Student | Cyber Security Specialist
New Delhi, India 110040 | +917979930293 | [email protected]
LinkedIn | HackerRank | GitHub | Educational Initiative

Best viewed on a larger screen. Some contents are hidden for a simpler mobile experience.

For your convenience, you can download a PDF copy of this resume by printing this webpage.
Please press CTRL + P on your keyboard and select "Save as PDF" in the print options.
You can click on the project names to view their respective project pages. Scroll down for more. Thank you for visiting.

Lifelong learner with a filed patent and a resilient, adaptable leader currently developing a Tamper-Proof Digital Voting System using Blockchain and Homomorphic Encryption, driven by a passion for building secure, scalable systems as a CSE cybersecurity student.
Education
Bachelor of Technology in Computer Science | Specialization in Cybersecurity
9.4 GPA/CGPA
Shoolini University, Solan, Himachal Pradesh, India
Aug 2022 - Jun 2026
Work History
IAM Intern | Tata Consultancy Services
Gurugram, India | Jun 2025 - Jul 2025
  • Delivered identity lifecycle automation in One Identity Manager 9.3; authored 5+ SQL/PowerShell/VB.NET scripts; completed multiple KT sessions; did root cause analysis (RCA) on Jira defects; wrote runbooks, rollback, and configuration diffs; reduced onboarding time by 10%.
Chief Technology Officer | Biopronut Pvt. Ltd.
New Delhi, India | Nov 2016 - Sep 2022
  • Led tech for a health-tech startup; deployed OpenEMR in <6 hrs and scaled. Implemented HIPAA-aligned methods for 1,000+ tele-consults.
Skills

Programming Language: Python, C/C++, Java, Bash, PowerShell

Libraries/Frameworks: Infrastructure Automation, Digital Forensics, FTK, SonarQube, Kafka/WebSockets, Node.js/AJAX/React

Tools/Platforms: One Identity Manager 9.3, AWS/GCP/Cloudflare/Azure, ZTA/PQC, IAM/LDAP/SCIM/SSO, CI/CD/RCA/Git/Jira, Ghidra

Databases: MySQL/Oracle/MSSQL/PSQL, MongoDB, D1

Empathetic leader skilled in guiding teams with innovative problem-solving techniques and clear, effective communication.

Python, C/C++, Java, JS, VB.NET, Bash, PowerShell, Azure Data Explorer (KQL), Event Hubs, Service Bus, Event Grid; Azure Monitor & Log Analytics (labs); GCP; AWS; Cloudflare, Kafka (basics), Event Hubs (labs), WebSockets, batch to stream translation, OpenTelemetry concepts, metrics/logs/traces, runbooks/RCAs, uptime/error budgets (dmj.one), CI/CD, Git, IaC scripting, Zero Trust, LDAP/SCIM/SSO, PostgreSQL, MySQL, MongoDB, Oracle, Cloudflare D1

  • GCP
  • Cloudflare
  • AWS
  • C / C++ / Rust
  • Python
  • Java
  • z/OS
  • MySQL
  • MongoDB
  • Adaptable
  • Problem-Solver
  • Leadership
  • JavaScript
  • PHP
  • HTML/CSS
Technical Projects & Open Source Contributions
Digital Document Signing & Verification Platform (PAdES/CAdES) | Academic Project

Java, PDFBox, BouncyCastle, Javalin, NGINX, Cloudflare Workers, D1, CycloneDX, systemd, OCSP/CRL

Sep 2025 - Present

Full Stack Java PDFBox PAdES-B ESSCertIDv2 PAdES B-LT/LTA DSS/VRI Per-document cert issuance Runtime Hardening PKI BouncyCastle Javalin NGINX Cloudflare Workers D1 Database CycloneDX systemd OCSP/CRL
  • Designed and built a PDF-centric digital signing and verification platform implementing the PAdES (PDF Advanced Electronic Signatures) framework for legally binding, tamper-evident documents.
  • Implemented per-document certificate issuance using RSA-3072 + SHA-256, in line with modern cryptographic standards and long-term validation (LTV) requirements of PAdES. :contentReference[oaicite:2]{index=2}
  • Supported signature levels B, T, LT and LTA to ensure documents remain verifiable far into the future, even as certificate lifecycles change.
  • Embedded revocation data (CRLs/OCSP) and timestamping inside the signed PDF (DSS/VRI structures) so the document is self-contained and verifiable without external dependencies.
  • Deployed backend services on hardened infrastructure: service-sandboxed via systemd, reverse-proxied by NGINX, exposed APIs through Javalin, and serverless components on Cloudflare Workers with D1 database for audit/event logging.
  • Generated full supply-chain transparency: SBOM via CycloneDX 1.6, pinned dependencies, and implemented integrity checks for bootstrap artifacts and signing keys.
  • Secured API endpoints with HMAC nonce + timestamp replay protection, enforced file upload limits with streaming parsing to mitigate PDF-bomb attacks, aligning with OWASP file upload and API guidelines.
  • Achieved ~500 ms P-95 signing latency on this TRL-5 prototype that produces PAdES-B-LTA signatures with embedded full CRL/OCSP chain, DSS/VRI structures and RFC 3161 timestamps, enabling LTV of over 5,000+ demo documents in a prod pilot.
Quantum-safe Digital Voting System using VVPAT & Biometrics | Academic Project

Python, Flask, MySQL, TenSEAL (BFV), AES-GCM, HMAC, ThreadPoolExecutor, Dynv6, Cloud DNS, CloudNAT, Cloud SQL, Cloud KMS

Mar 2025 - Present

Full Stack Python Flask MySQL TenSEAL-BFV AES-GCM HMAC Threading/Queue Dynv6 Audit Chain Performance Simulation
  • Designed and built a fully automated end-to-end verifiable digital voting platform using homomorphic encryption (TenSEAL BFV) and chained audit logs to ensure ballot confidentiality, integrity and a tamper-evident audit trail.
  • Implemented AES-GCM encryption for sensitive voter-metadata and HMAC-signed SHA256-chained audit logs stored in a public audit table, enhancing tamper-resilience and traceability.
  • Architected a high-throughput vote‐queuing subsystem using Python ThreadPoolExecutor, MySQLConnectionPool, and asynchronous job tracking to support large-scale simulated elections.
  • Deployed dynamic DNS (via Dynv6) and service orchestration to maintain availability and address changes in cloud IPs; integrated session key management and rollback safe procedures for real-world readiness.
  • Built an admin interface for session control, candidate & voter management, live tallying (via homomorphic ciphertext aggregation) and historical session reporting for transparency and post-election audit.
  • Conducted simulation and performance evaluation (e.g., 5,000 votes/sec over 2 sec duration) with proper logging, queue drain, and failure handling (failed_votes.log) to validate system reliability under load.
  • Developing a TRL-3 digital voting platform with audit-chaining for secure, scalable and verifiable elections that can handle ~50 votes/sec.
dmj.one | Academic Project
HTML5, CSS3, JS, Bootstrap, CF Workers, Pages, D1, KV, AWS Lambda, EC2, CloudWatch, Python
Aug 2022 - Present
Full Stack HTML5 CSS3 JS Bootstrap CF Workers Pages D1 KV AWS Lambda EC2 CloudWatch Python
  • Founded dmj.one, an educational platform aiming to empower underprivileged children by delivering quality and accessible learning resources, reaching over 1300 (est.) learners daily through innovative web technologies.
  • Developed and deployed full-stack solutions using Cloudflare Workers, AWS services, and modern web technologies, ensuring scalability and reliability for continuous platform growth.
  • Launched a public welfare initiatives platform empowering users through education & delivering quality resources to ~1800+ daily.
Emotion-Aware Multimodal Biometric Authentication System | Academic Project

Python, Flask, OpenCV, SpeechBrain, InsightFace, MySQL, Noisereduce, DeepFace, Flask-Limiter, Google Cloud

Nov 2024 - Dec 2024

Full Stack Python Flask OpenCV SpeechBrain InsightFace MySQL Noisereduce DeepFace Flask-Limiter Google Cloud
  • Designed, Developed and implemented a fully automated multimodal biometric authentication system integrating facial recognition, voice authentication, and emotion detection for enhanced security and user verification.
  • Implemented liveness detection techniques to mitigate spoofing attempts using image sharpness, facial landmark analysis, and emotion consistency.
  • Optimized performance using state-of-the-art deep learning models such as SpeechBrain for voice features, InsightFace for facial embeddings, and DeepFace for emotion recognition.
  • Designed and deployed a scalable backend system on Google Cloud (Compute Engine, Cloud Run, Cloud SQL), utilizing Flask with rate limiting, Nginx, and MariaDB along with the Google Cloud SQL for optimized pooling to ensure high availability and robust data protection along with boosting performance and scalability.
  • Integrated dynamic threshold adjustment mechanisms for facial and voice authentication, enhancing real-time adaptability to different environments and noise levels.
  • Achieved efficient database synchronization between local and cloud storage using AES-encrypted biometric templates to maintain security and data integrity.
  • Built a multimodal biometric authentication system with facial, voice, and emotion recognition for AI-driven security.
View Report View Presentation
Privilege Escalation via 'localStorage' Manipulation | Academic Project

Web Security, JavaScript, Penetration Testing, Client-Side Exploitation

Oct 2024 - Dec 2024

Web Security JavaScript Penetration Testing Client-Side Exploitation
  • Identified and reported a privilege escalation flaw in a university platform, leading to a security patch.
  • Demonstrated unauthorized role escalation via `localStorage` manipulation and provided mitigation strategies.
  • Recommended secure authentication practices, improving access control and reducing attack risks.
  • Discovered and reported a critical security vulnerability, leading to improved authentication and access control.
Secure Document Collaboration System | Academic Project

Web Security, Cloudflare Workers, Pages, D1, KV, AES Encryption

Aug 2024 - Dec 2024

Full Stack Web Security Cloudflare Workers Pages D1 KV WebSockets AES Encryption
  • Developed a secure document collaboration system using Cloudflare Workers, ensuring data privacy and integrity.
Student Management System | Academic Project

Python, MySQL, RBAC, Caesar Cipher, Faker Library

Feb 2024 - May 2024

Python MySQL RBAC Caesar Cipher Faker Library
  • Designed and implemented a MySQL-backed Student Management System with automated table setup, resulting in 100% accuracy in database schema creation.
  • Developed role-based user login and password encryption using Caesar Cipher, ensuring secure user authentication across the system.
  • Successfully deployed the system, which improved the accuracy and efficiency of student data management by 60%, ensuring secure and scalable operations.
  • Developed a secure, scalable SMS using MySQL & RBAC, handling high-volume data, like financial institutions.
Robot Vehicle Collision Avoidance using 8051 | Academic Project

8051 Microcontroller, Ultrasonic Sensors, Proteus

Oct 2023 - Dec 2023

8051 Microcontroller Ultrasonic Sensors Proteus
  • Programmed an autonomous system using IR sensors and an AT89C51 microcontroller, with 95% accuracy.
Interfacing with 2 Peripherals using 8051 Microcontroller | Academic Project

8051 Microcontroller, LCD, Proteus

Sep 2023 - Dec 2023

8051 Microcontroller LCD Proteus
  • Connected a microcontroller interfacing system with AT89C51, achieving precise data communication with peripherals.
Timekeeper: A Java Reminder App | Academic Project

Java, Swing, AWT, PowerShell, Shell Scripting

Aug 2023 - Dec 2023

Java Swing AWT PowerShell Shell Scripting
  • Led the development of a Java-based cross-platform reminder app with a 98% user satisfaction rate.
  • Implemented native notification systems for Windows, macOS, and Linux, enhancing multi-OS support.
  • Successfully deployed a functional and reliable reminder application that is cross-platform, easy to use, and enhances user productivity by ensuring timely task reminders.
  • Designed a cross-platform Java reminder app with 98% user satisfaction, notifications for Windows, macOS, and Linux.
Automated Night Light using 555 Timer | Academic Project

555 Timer IC, LDR, Resistors, LED, Capacitors, Proteus Simulation

Feb 2023 - May 2023

555 Timer IC LDR Resistors LED Capacitors Proteus Simulation
  • Designed and tested a 555 Timer IC-based Automatic Night Light system with reliable LED activation in low light.
  • Achieved successful circuit optimization, preventing LED damage and ensuring consistent operation.
  • Successfully developed a prototype that reliably controls LED activation based on ambient light levels, demonstrating the practical application of the 555 Timer in automated lighting systems. Improved project understanding by solving initial circuit issues, leading to a functional and robust automatic lighting solution.
  • Engineered a 555 Timer based Automatic Night Light with 100% reliable LED activation, automating efficiency by 25%.
Certifications
View all certifications at dmj.one
Achievements & Awards
  • Global Rank 13 in TCS CodeVita Season 12, 2025.
  • Patent Filed: A Multi-Modal Knowledge Integration System with Breathing and Visual Stimuli (App. No. 202511010666).
  • HackerRank: 5-star in Python, C++, SQL, Java.
  • Led a team of 30 to win runner-up prize in SPRINT 2024 and 2x Best Speaker at SPRINT 2022 & SPRINT 2023.
  • AIR 12 in National Science Olympiad, 2007.
Extracurricular Activities
  • Student Ambassador of Shoolini University since 2023.
  • Won Silver Medal in Shoolini Marathon 2024.
  • Led GDSC Shoolini Chapter as part of Core Team (2022-2023).
  • Participated in C3iHub Hackathon at IIT Kanpur, 2025.
  • Runner-up in Debate Competition, 2023.
  • Managed a cross-functional team of developers and designers, ensuring on-time and within-budget project completion.
  • Hobbies - Reading, Walking.
  • Languages - Fluent: English, Hindi | Basic: French, Russian.