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Hi, I'm Surendra

Full Stack Developer building scalable platforms and real-world systems. Creator of Skillnox & Skillnox.AI – secure assessment platforms load-tested with 5,000+ concurrent users at 100% success rate.

Surendra Varikallu - Profile

Surendra Varikallu

Full Stack Developer

AboutMe

Full Stack Developer building production-grade web platforms that solve real problems — from Skillnox.AI (AI-driven technical assessment platform) to secure examination engines serving 5,000+ concurrent users with 100% success rate and single-digit millisecond latency.

  • Full Stack Developer focused on scalable AI & web platforms
  • Creator of Skillnox.AI and Skillnox (KITAghire ecosystem)
  • Proficient in React, Next.js, Node.js, Express, PostgreSQL, and Local LLMs (Qwen)
  • Passionate about AI evaluations, proctoring security, and high-concurrency systems

0K+

Peak Users Load

0%

Success Rate (5K VUs)

0

Prod Systems Active

Skills & Technologies

Here are the technologies and tools I work with to bring ideas to life

Frontend

HTML

HTML

CSS

CSS

JavaScript

JavaScript

React.js

React.js

TypeScript

TypeScript

Next.js

Next.js

Tailwind CSS

Tailwind CSS

Backend

Node.js

Node.js

Express.js

Express.js

Python

Python

Django

Django

Databases

MongoDB

MongoDB

MySQL

MySQL

PostgreSQL

PostgreSQL

Tools

Git

Git

GitHub

GitHub

Docker

Docker

VS Code

VS Code

Postman

Postman

Vercel

Vercel

Always Learning

I'm constantly expanding my skill set and staying up-to-date with the latest technologies. Currently exploring advanced AI Integration, Cloud Architecture, and modern development practices.

Experience&Journey

My professional timeline — internships, leadership roles, and achievements.

Hackathon 1st Prize (Elevate X Season 2)

Codegnan

May 2026
  • Won 1st place in the Elevate X Season 2 Hackathon, a high-intensity 12-hour full-stack coding sprint organized by Codegnan.
  • Designed, developed, and deployed a production-ready prototype web application under strict time constraints.
  • Presented technical architecture and scalability roadmap to a panel of expert judges.

Hackathon 3rd Prize (StudentConnect)

Dept of CSE, KITS

Feb 21, 2026
  • Built 'StudentConnect' a collaborative platform for students to share academic resources and work on projects.
  • Developed the full-stack application using Python, Django, and PostgreSQL within 48 hours.
  • Secured 3rd place overall and successfully deployed the live project on Render.

Google Student Ambassador

KITS Akshar Institute of Technology

Aug 2025 - Dec 2025
  • Organized and hosted 7+ technical workshops on Google Cloud, Android, and AI tools, increasing student involvement by 45%.
  • Built and managed a student tech community of 150+ active learners, mentoring peers through Google certification tracks.
  • Increased campus adoption of Google programs through strategic outreach, resulting in a 50% rise in student registrations.

Full-Stack Web Developer Intern

Cognifyz Technologies

June 2025 - July 2025
  • Built dynamic full-stack web applications using HTML, CSS, JavaScript, and Node.js, delivering responsive UIs.
  • Integrated RESTful APIs with modern frontend components, boosting application functionality and reliability by 40%.
  • Engineered tailored solutions leveraging React.js, Express.js, and MongoDB, achieving a 30% reduction in bottlenecks.

Web Development Intern

Codegnan (Offline)

May 2025 - June 2025
  • Built and deployed a fully responsive travel website using HTML, CSS, JavaScript, and Bootstrap.
  • Optimized website performance by minimizing assets and structuring components efficiently, achieving under 2s load time.
  • Developed and integrated Design Applications using Figma and Adobe XD, accelerating UI prototyping and handoff.

FeaturedProjects

Highlights from my work — production systems, hackathon wins, and emerging AI platforms.

Flagship AI Platform

Skillnox.AI

Skillnox.AI

Live AI Platform • Successor to Skillnox

An intelligent, AI-powered technical assessment platform deployed as the successor to Skillnox. Features privacy-first local LLM evaluations (Qwen) combined with adaptive technical interviews and proctoring security.

Key Features

Privacy-first local LLM (Qwen) integration
Real-time AI interview & response evaluation
Adaptive technical assessment workflows
Anti-cheating & proctoring security
Child platform of KITAghire ecosystem
Scalable multi-tenant assessment engine

Impact

  • Deployed live as the successor to Skillnox within the KITAghire ecosystem
  • Autonomous AI interview evaluation with privacy-first LLM inference
  • Engineered for high-concurrency technical testing & real-time feedback
React.jsLocal LLMs (Qwen)Node.jsPostgreSQLTailwind CSS
Private Repository
Live Demo
Proven Assessment Engine

Skillnox Platform

Skillnox Platform

100% Success at 5,000 VUs • 3.97ms Latency

A secure assessment platform designed for large-scale college testing with anti-cheating mechanisms and extreme scalability.

Key Features

5,000 concurrent virtual users
100.00% request success rate (k6 load test)
3.97 ms avg latency under peak load
Tab switching & shortcut key blocking
Developer tools & AI extension blocking
100k+ completed exams processed

Impact

  • Used by final-year and pre-final-year students across college departments
  • Load tested with 100.00% success rate across 146,045 HTTP requests
  • Actively deployed for secure online assessments (skillnox.kitaghire.in)
ReactNode.jsExpressPostgreSQLRedisPM2 Cluster
Private Repository
Live Demo
Active College Portal

KITAghire.in

KITAghire.in

Parent Platform • Active College Scale

A live college training and placement portal actively used at college scale to manage placement drives, student profiles, and recruitment records, serving as the parent ecosystem.

Key Features

Parent platform of Skillnox & Skillnox.AI
Active college training & placement portal
Comprehensive TPO analytics dashboard
Placement drive & recruitment workflows
Student profile & resume management
Multi-department administrative controls

Impact

  • Parent ecosystem for Skillnox and Skillnox.AI
  • Actively manages placement drives & student recruitment records
  • Comprehensive TPO dashboard with real-time drive analytics
ReactNode.jsExpressPostgreSQLTailwind CSS
Private Repository
Live Demo

OtherProjects

Global Smile

AI-Powered Dental Care

Advanced prosthodontic care platform without borders. Integrates AI-powered smile visualization, treatment journeys, and global dental tourism coordination.

React.jsViteTailwind CSSPWA
Open Source

Student Connect

Hackathon 3rd Prize

A collaborative platform developed during a hackathon to help students connect, share academic resources, and collaborate on projects. Secured 3rd prize at the college hackathon.

PythonDjangoPostgreSQL
Open Source

Bug Bounty Competition Platform

Multi-round Scoring

Interactive cybersecurity event platform with multiple rounds including log analysis and vulnerable web exploitation, featuring secure login dashboards and event scoring.

ReactNode.jsExpress
Open Source

LumoraEd

A comprehensive student learning platform featuring learning roadmaps, coding challenges, certification tracking, and real-time progress analytics.

ReactNode.jsMongoDBExpress
Open Source

SkySense

Interactive weather dashboard providing real-time forecasts and geolocation services integration.

TypeScriptWeatherAPILeaflet
Open Source

Algo Assistant

AI chat bot for Blockchain and Algorand development. capable of creating NFTs, tokens, and building blockchain apps.

React.jsNode.jsGemini APITailwindCSS
Open Source

Certificates&Achievements

Professional certifications and achievements that validate my skills and expertise

Codegnan logo

Hackathon First Prize — Elevate X Season 2

Codegnan

2026

Won 1st prize at Elevate X Season 2 Hackathon, a 12-hour full-stack coding sprint organized by Codegnan. Developed and deployed a high-performance prototype, showcasing rapid full-stack engineering.

College Hackathon logo

Hackathon Third Prize — Student Connect

College Hackathon

2026

Secured third place for building Student Connect — a collaborative platform to help students connect, share academic resources, and collaborate on projects. Built with Python and Django.

Google logo

Google Student Ambassador

Google

2025

Spearheaded campus-wide technology initiatives and hackathons as a Google representative. Fostered a vibrant developer community by mentoring peers, organizing technical workshops, and facilitating access to Google's cutting-edge development tools and resources.

Codegnan logo

Web Development

Codegnan

2025

Acquired mastery in full-spectrum web engineering, moving from semantic HTML5/CSS3 to advanced JavaScript paradigms. Developed responsive, high-performance interfaces and dynamic applications using modern component-based architectures.

Cognifyz Technologies logo

Full Stack Development

Cognifyz Technologies

2025

Executed comprehensive full-stack solutions during an intensive internship, integrating robust backend RESTful APIs with sleek React frontends. Gained practical expertise in database schema design, server-side logic, and seamless client-server communication.

IIT Bombay TechFest 26 logo

AI & Data Science Workshops

IIT Bombay TechFest 26

2026

Completed a comprehensive 5-day journey at Asia's largest science and technology festival, attending two distinct intensive workshops focused on Artificial Intelligence and Data Science.

Google Developers Group logo

Participant — Google DevFest Hyderabad

Google Developers Group

2025

Participated in the premier technical conference, engaging with industry experts on modern web technologies, AI advancements, and cloud architecture.

HackerRank logo

SQL Certification

HackerRank

2025

Achieved advanced proficiency in relational database architecture and complex SQL querying. Demonstrated capability in optimizing data retrieval operations, designing normalized schemas, and managing large-scale datasets for performance-critical applications.

Oracle logo

Oracle Cloud Infrastructure 2025 Certified Generative AI Professional

Oracle

2025

Achieved professional-level certification demonstrating expertise in designing, deploying, and managing Generative AI solutions on Oracle Cloud Infrastructure.

Oracle logo

Oracle Cloud Infrastructure 2025 Certified AI Foundations Associate

Oracle

2025

Validated foundational knowledge in artificial intelligence, machine learning, and deep learning concepts within the Oracle Cloud Infrastructure ecosystem.

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Certifications & Events
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Internships
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Completion Rate

GetInTouch

I'm always open to discussing new opportunities and interesting projects. Let's build something amazing together!

Let's Connect

Phone

+91 9392423976

Location

Guntur, Andhra Pradesh, India

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