10/11/2026 updated
100 % available
Full-Stack / Backend Developer & Cybersecurity Specialist
Kozhikode, India
Only remote
Bachelor of Technology, Computer Science & Engineering (Cybersecurity Specialisation)JavaScriptApplication Programming Interfaces (APIs)Penetration TestingDevOpsDjangoMiddlewareGitHubPython (Programming Language)Network SecurityPostgreSQLNode.jsNoSQLOpenStackPHP DevelopmentData Science
Backend & API Development
Expertise in building production-ready REST APIs using Node.js, Express.js, and Python (Django), including middleware architecture, async/await and event loop optimization, and full request/response lifecycle management.
Cybersecurity & Penetration Testing
Hands-on experience conducting structured penetration testing and VAPT protocols, uncovering critical vulnerabilities such as SQL Injection and XSS, and engineering targeted mitigation playbooks to reduce exploitable attack vectors.
Frontend Development
Proficiency in building modern web interfaces using React.js, TypeScript, JavaScript (ES6+), HTML5/CSS3, and Tailwind CSS, with strong understanding of state and props management and API integration.
Databases & Data Layer
Experience with PostgreSQL, MySQL (parameterized queries, schema design, RBAC), Firebase Firestore, Appwrite NoSQL, and Prisma/Mongoose ORM concepts for secure and scalable data management.
Authentication & Authorization
Implementation of JWT-based authentication, Role-Based Access Control (RBAC), session/cookie handling, and input validation and sanitization to secure web application architectures.
Tools, Workflows & DevOps
Proficiency with Git, GitHub (branching, PRs, conflict resolution), npm/yarn, Postman, environment configuration (.env), Docker (basic), and Linux/Unix environments.
Network Security & IDPS
Detection and classification of network anomalies using Wireshark and Nmap, building repeatable IDPS workflows and documented reference frameworks for TLS/SSL and firewall rule logic.
IoT & Edge Computing
Development of autonomous edge-computing navigation systems using Python on Raspberry Pi, real-time sensor data streaming, and IoT security endpoint protection systems using Arduino Uno and GSM modules.
Data Science & Machine Learning
Foundational knowledge in machine learning algorithms, data science with Python, data mining, and MATLAB for data processing and visualization, supported by multiple certifications.
Expertise in building production-ready REST APIs using Node.js, Express.js, and Python (Django), including middleware architecture, async/await and event loop optimization, and full request/response lifecycle management.
Cybersecurity & Penetration Testing
Hands-on experience conducting structured penetration testing and VAPT protocols, uncovering critical vulnerabilities such as SQL Injection and XSS, and engineering targeted mitigation playbooks to reduce exploitable attack vectors.
Frontend Development
Proficiency in building modern web interfaces using React.js, TypeScript, JavaScript (ES6+), HTML5/CSS3, and Tailwind CSS, with strong understanding of state and props management and API integration.
Databases & Data Layer
Experience with PostgreSQL, MySQL (parameterized queries, schema design, RBAC), Firebase Firestore, Appwrite NoSQL, and Prisma/Mongoose ORM concepts for secure and scalable data management.
Authentication & Authorization
Implementation of JWT-based authentication, Role-Based Access Control (RBAC), session/cookie handling, and input validation and sanitization to secure web application architectures.
Tools, Workflows & DevOps
Proficiency with Git, GitHub (branching, PRs, conflict resolution), npm/yarn, Postman, environment configuration (.env), Docker (basic), and Linux/Unix environments.
Network Security & IDPS
Detection and classification of network anomalies using Wireshark and Nmap, building repeatable IDPS workflows and documented reference frameworks for TLS/SSL and firewall rule logic.
IoT & Edge Computing
Development of autonomous edge-computing navigation systems using Python on Raspberry Pi, real-time sensor data streaming, and IoT security endpoint protection systems using Arduino Uno and GSM modules.
Data Science & Machine Learning
Foundational knowledge in machine learning algorithms, data science with Python, data mining, and MATLAB for data processing and visualization, supported by multiple certifications.
Experience
Professional experience0 - 5 years
Freelancer since2026
Languages
EnglishFluent
Project history
Developed a custom, end-to-end vulnerable web application designed to serve as a practical penetration testing target. Reverse-engineered secure coding principles to intentionally introduce and document multi-stage vulnerabilities (SQLi, XSS, insecure direct object references). Built built-in mitigation playbooks alongside the vulnerable architecture, creating a dual-perspective learning tool.
Operating Salesforce CRM daily in a live enterprise environment, managing case workflows, omnichannel interaction pipelines, and AI-assisted agent interfaces for Lowe's. Identifying recurring friction points in customer interaction flows and escalating structured feedback into process improvement recommendations. Maintaining consistent CSAT benchmarks across complex product and service resolution workflows under high-volume, real-time operational load.
Designed and built a secure Node.js API Gateway managing request routing, middleware validation, and preventing frontend exposure of API credentials. Implemented strict database rules and authentication in Firebase Firestore using UID-matching to ensure role-based authorization. Handled real-time telemetry streaming pipelines and prevented CORS vulnerabilities across endpoints.