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Gen AI Intern @ Sariki Technologies

Kola Mohan Vignesh Kumar

Building Intelligent Products with AI & Code.

Full Stack AI Engineer working across Generative AI, RAG, and production MERN applications — from embeddings and retrieval pipelines to deployed frontends, APIs, and databases. Full Stack AI Engineering, Generative AI and RAG — built for production, not demos.

Explore ProjectsContact Me
GitHubLinkedInkmvk777@gmail.comVisakhapatnam, India
working withLlama 3.1 · GroqRAG · Vector SearchReact · Next.jsNode · MongoDBDocker · CI/CD

About

Engineer across the stack, focused on useful AI.

I build products where the AI actually ships — retrieval pipelines, evaluation paths with fallbacks, and full-stack apps that survive real users, timers, payments, and flaky networks.

Full-stack engineering

React and Next.js frontends, Node + Express APIs, JWT with role-based access — owned end to end, from schema to deployment.

Generative AI & RAG

LLM workflows, document ingestion, chunking, embeddings, Atlas Vector Search retrieval, and grounded generation with Llama 3.1 and Hugging Face models.

Deployed, not demoed

College-used exam platform for hundreds of concurrent students, a cross-platform study app, and a franchise system with payments and invoicing.

background

I'm Mohan Vignesh, a Full Stack AI Engineer based in Visakhapatnam, India. My work sits at the intersection of Generative AI and full-stack product engineering — RAG assistants, proctored exam infrastructure, and admin systems with real payments.

Currently a Gen AI Intern at Sariki Technologies and previously a MERN Stack Intern at Headway Vision. I care about grounded generation, server-authoritative state, clean access control, and deployments that hold up under load.

Experience

Where I've worked.

Three roles spanning campus web development, full-stack MERN work, and Generative AI product engineering.

  1. Gen AI Intern — Sariki Technologiescurrent

    Jun 2026 — Present

    Internship

    Generative AI applications and AI-powered product features, integrating LLM capabilities with application backends.

    • Work on Generative AI applications and AI-powered product features involving LLM-based workflows and AI engineering.
    • Integrate AI capabilities with application backends, focusing on LLM API integration, data processing, prompting, and reliable application behavior.
    Generative AILLMsPrompt EngineeringREST APIsNode.js

  2. MERN Stack Intern — Headway Vision

    Jul 2025 — Mar 2026

    Internship

    Full-stack MERN development on SaaS products with authentication, role-based access, and deployment support.

    • Developed MERN applications with JWT authentication, RBAC, REST APIs, and MongoDB.
    • Built backend services with validation and error handling; supported Docker and Jenkins CI/CD deployments.
    • Collaborated through Git workflows and code reviews while contributing to SaaS products.
    ReactNode.jsExpress.jsMongoDBJWTDockerJenkinsLinux

  3. Associate Web Developer — Students Gymkhana Center

    Mar 2024 — Mar 2025

    Internship

    Campus web development — built and maintained internal web applications with the student gymkhana team.

    • Built and maintained internal web applications using React and Node.js.
    • Integrated backend APIs and enhanced UI/UX through team collaboration.
    ReactNode.jsREST APIs

Featured projects

Production systems, different problems.

Each card opens a case study with architecture, features, and engineering trade-offs. Previews are illustrative diagrams — not screenshots.

Full Stack · AI Evaluation · Proctoring

2025

CSE Placement Training

Live proctored examination platform used by my college

Exam scheduling, automated grading, rankings and percentile analytics for up to 300 concurrent students — with webcam proctoring, Trust Score violation tracking, and resilient exam recovery.

ReactNode.jsExpress.jsMongoDBFirebaseJWTWebGazer+5
Case studyLive

Mobile · RAG · Vector Search

2025

StudyMate

Student productivity app with a RAG study assistant

Cross-platform React Native app with Pomodoro, timetable, SGPA and study workflows — plus a RAG assistant that answers questions over the student's own PDFs.

React NativeExpoNode.jsExpress.jsMongoDB AtlasFirebaseRAG+1
Case studyGitHub

Full Stack · Admin Dashboard · Payments

2025

Tea Mahall

Admin-based tea franchise application

Franchise management with an authenticated admin dashboard, role-based CRUD, real-time state, Razorpay payments, transactional email, and automated invoice PDFs.

MERNClerkRazorpayNodemailerMongoDBExpress.jsReact+1
Case studyLiveGitHub

Full Stack · DevOps · CI/CD

Kuchipudi Kala Gurukulam

Live classical dance academy platform

Full-stack MERN platform with JWT authentication and role-based access, Cloudinary-backed media, and Docker + Jenkins deployment on a Linux server.

MongoDBExpress.jsReactNode.jsJWTCloudinaryDocker+2
Case studyGitHub

Showing 4 of 4 — filter by AI / Full Stack / Mobile. Add future projects in data/projects.ts without redesigning this section.

Skills

A practical, production-oriented toolkit.

No proficiency bars or fake ratings — just the tools I actually build and deploy with, grouped by where they run.

AI & Generative AI

Applied LLM and retrieval systems

  • Generative AI
  • LLMs
  • RAG
  • Embeddings
  • Semantic Search
  • Vector Search
  • Prompt Engineering
  • Document Processing
  • Hugging Face
  • Groq API
  • Llama 3.1

Frontend Development

Web and mobile interfaces

  • React.js
  • Next.js
  • React Native
  • Redux
  • Tailwind CSS
  • Bootstrap

Backend & APIs

Services, auth, and access control

  • Node.js
  • Express.js
  • REST APIs
  • JWT
  • Role-Based Access Control

Databases

Operational and vector storage

  • MongoDB
  • MongoDB Atlas Vector Search
  • PostgreSQL
  • Firebase Firestore

DevOps & Tools

Shipping and collaboration

  • Docker
  • Jenkins
  • CI/CD
  • Vercel
  • Railway
  • Git
  • GitHub
  • Postman

Programming Languages

Daily drivers

  • C++
  • JavaScript
  • Python

Core Computer Science

Foundations

  • Data Structures & Algorithms
  • DBMS
  • OOP
  • Computer Networks
  • LLD
  • API Design

Achievements

Signals of consistency.

500+ DSA problems on LeetCode

Consistent problem-solving across data structures and algorithms — the foundation behind my backend and AI engineering work.

View LeetCode profile

MVGR Hackathon — Finalist

Selected for the final round after clearing the initial online screening.

CSE Branch Coordinator — Techniverse 2K25

Coordinated CSE participation for the Techniverse 2K25 technical fest.

Contact

Let's build something that ships.

Fastest way to reach me is email. I read everything — whether it's an internship, a collaboration, or feedback on the exam platform and RAG work.

Email Me

kmvk777@gmail.com

Based in Visakhapatnam, India · RGUKT IIIT Srikakulam · Graduating Apr 2027.