RR
OPEN TO OPPORTUNITIES
FULL STACK DEVELOPER · AI ENGINEER · OPEN SOURCE CONTRIBUTOR

Ritik Raj

AI & Software builder open-source contributor to Haystack, co-founder of a scaled EdTech product, and creator of an AI content channel with 250K+ views. From LoRA fine-tuning to production automation with MCP, RabbitMQ, and Celery I build end-to-end.

View My Work ↓Let's Connect →
SCROLL
// about

More than just code.

I'm a B.Tech AI student at Newton School of Technology, Rishihood University (2023–2027) with a 8.57 CGPA. Strong CS fundamentals in DSA, OS, DBMS, Computer Networks, and System Design and 1000+ DSA problems solved across LeetCode and Codeforces.

I've interned at Physics Wallah (1.5M+ DAU platform), co-founded Seedite an EdTech platform with 320+ users and ₹16K+ revenue and contributed 11 merged PRs to Haystack, an open-source LLM orchestration framework.

Beyond code, I run a YouTube channel with 1.4K subscribers and 250K+ views on AI & tech innovation some videos produced entirely with an AI avatar, AI voice cloning, and AI-generated visuals, indistinguishable from self-shot content.

I think in systems, not syntax from LoRA fine-tuning and diffusion models to production automation with MCP, RabbitMQ, and Celery. Comfortable building end-to-end.

1000+
DSA Problems Solved
320+
Users on Seedite
11
Haystack PRs Merged
250K+
YouTube Views
1.4K
YouTube Subscribers
8.57
CGPA / 10
// experience

Where I've made impact.

Physics Wallah

Jan 2025 to Jul 2025
Tech Engineering InternNoida
  • India's leading EdTech platform. Built reusable TypeScript, Next.js, and Tailwind CSS UI components for production CMS interfaces.
  • Worked extensively on the internal UI library used across PW platforms serving 1.5M+ DAU, fixing component defects and implementing required changes.
  • Integrated the Otpless authentication SDK into production authentication workflows.
  • Performed technical testing and QA for PW's primary consumer facing website, validating production flows and release critical edge cases.
  • During Tech Sangam, worked on a gamified learning prototype inspired by Clash of Clans where students could solve questions, earn points, unlock features, and compete; team ranked Top 10 out of 50+ teams.
TypeScriptNext.jsUI Library1.5M+ DAUProduction QA

Seedite

Dec 2024 to Present
Co Founder & Sole EngineerRemote
  • Solo managed the technical architecture, building a production Node.js/Express backend with MongoDB Atlas.
  • Implemented Razorpay payments using dual verification (client side signature + independent webhook HMAC SHA256) and idempotent paths to prevent duplicate enrollment.
  • Built Google OAuth 2.0 account linking, session based single device login enforcement, and B2B college licensing with email based multi tenant access control and per student analytics.
  • Architected secure content delivery using Bunny Stream CDN with SHA 256 signed token URLs (24h expiry) and an S3/CloudFront asset storage layer.
  • Developed a Gemini powered admin natural language to MongoDB query engine, secured by an application level operation whitelist and secondary AI read only verification.
  • Configured GitHub Actions CI/CD to an Ubuntu VPS with PM2 process management and secret based environment injection.
  • Shipped 100+ hours of lecture content and iterated 100+ feature/UX changes from user feedback.
Node.jsMongoDB320+ Users₹16K+ Revenue99.9% UptimeSEO 1000.3s FCP

Haystack (deepset ai)

2025 to Present
Open Source ContributorRemote
  • 11 merged PRs and 2 improvement proposals to an open source LLM orchestration framework, improving framework level reliability.
  • PR #11569: Fixed telemetry decorator metadata loss/preservation issue and added targeted tests.
  • PR #11505: Implemented secure by default symlink handling for ByteStream and converters.
  • PR #11259: Fixed device state restoration in NamedEntityExtractor alongside release note updates.
  • Investigated and resolved framework level bugs, improving reliability of retrieval and pipeline components for downstream users.
Open SourceLLM Framework11 PRs MergedPython
// projects

Things I've built.

8 PROJECTS|4 IN PRODUCTION

Razorpay Merchant Onboarding AI Agent

Live
Multi-Agent Automation Pipeline2025
  • Built a multi-agent onboarding pipeline (4 microservices) that verifies merchant data.
  • Scrapes and cross-checks business websites automatically.
  • Generates a risk/trust score to auto-approve, reject, or grant a 48-hr grace period.
  • Orchestrated async agent workflows with RabbitMQ and Celery.
  • Exposed an MCP server so merchants can self-onboard directly through an AI assistant.
RabbitMQCeleryMCPFastAPIAI AgentsMicroservices

Fillica AI

Live
Autonomous Job Application Agent2026
  • Multi-LLM agent framework with retry logic, structured outputs, and provider abstraction.
  • Hybrid system utilizing deterministic Playwright DOM injection.
  • Integrates vision-language reasoning and semantic field disambiguation.
  • Reached 85% accuracy across 15+ ATS platforms.
  • Full-stack desktop app built with Electron, Next.js, Node.js, and MongoDB.
ClaudeGPT-4oGeminiPlaywrightElectronNext.jsMongoDB

Seedite

Production
Full-Stack EdTech Platform2024
  • A complete learning platform for competitive exam prep.
  • Features structured practice workflows, video streaming, mock tests, and interview prep.
  • Includes performance analytics and a full admin dashboard.
  • Gained 320+ users and Rs. 16K+ revenue with zero paid marketing.
  • Achieved 99.9% uptime, SEO 100, and 0.3s FCP.
Next.jsNode.jsExpressMongoDBRazorpayBunny CDN

RAIDEN-C

Open Source
Terminal Shooter Engine in Pure C2026
  • Built a terminal-based shooter game engine entirely in C without string.h, math.h, or standard allocation APIs.
  • Implemented custom libraries for memory management, string operations, terminal rendering, and non-blocking keyboard input.
  • Created manual memory allocator using a preallocated pool with custom lifecycle handling.
  • Engineered frame-based game loop with collision detection and double-buffered rendering.
CManual Memory AllocationState MachinesGame Engine

University Library Cabin Booking

Live
Campus-Wide Booking System2025
  • Campus-wide cabin booking platform built and deployed solo, replacing manual cabin allocation.
  • Features authenticated, concurrent-safe reservations and group-consent workflows.
  • Engineered robust race-condition handling using an in-memory Node.js mutex for concurrent slot requests.
  • Ensures duplicate/overlapping booking prevention.
  • Evolved the system to v4 with a group-booking model requiring member consent via QR codes.
  • Scaled to 600+ users, 1,500+ bookings, and 800+ completed sessions.
Node.jsExpressMongoDBGoogle OAuth 2.0JWTRBAC

Discrete Diffusion Text Generation

Demo
Fine-Tuning / Model Internals2025
  • Trained a 17M-parameter Masked Diffusion LM.
  • Utilized 6-layer DiT, AdaLN, and log-linear noise schedule.
  • Optimized with AdamW, cosine LR, EMA, and noise-weighted ELBO.
  • Shipped a live Gradio demo on Hugging Face Spaces.
PyTorchTransformersHugging FaceGradioDiTAdamW

Quantum Research HHL Algorithm

Research
Quantum Computing2025
  • Studied and implemented the Harrow Hassidim Lloyd (HHL) quantum algorithm for solving linear systems.
  • Explored quantum circuit design, algorithmic complexity, and limitations of quantum linear solvers.
  • Focused on theoretical understanding and simulation-based validation.
PythonQiskitLinear AlgebraQuantum Circuits

MergeFlow

Demo
MR/PR Management Tool2025
  • Built a centralized PR coordination tool to resolve fragmented Slack-based manager approvals.
  • Engineered an organization-level hierarchy where teams authenticate specific GitHub projects.
  • Members can securely tag managers on PRs.
  • Integrated GitHub API to fetch real-time PR status.
  • Provides managers a consolidated dashboard of pending reviews.
  • Successfully demonstrated the workflow optimization to the engineering team.
Next.jsNode.jsExpressMongoDBTailwind CSS
// tech stack

My toolkit.

LANGUAGES
PythonJavaScriptTypeScriptCC++JavaGoSQL
FRONTEND
React.jsNext.jsElectronTailwind CSS
BACKEND
Node.jsExpress.jsFastAPI
DATABASES
MongoDBMySQL
AI / ML
PyTorchTransformersHugging FaceLLM AgentsRAGLoRA Fine-tuningDiffusion ModelsMCP
AUTOMATION
RabbitMQCeleryPlaywrightMicroservicesREST APIsWebhooks
CORE CS
DSAOperating SystemsDBMSComputer NetworksComputer ArchitectureSystem Design
SECURITY
Ethical HackingJWTOAuth 2.0RBACRate Limiting
SYSTEMS PROGRAMMING
Terminal RenderingManual Memory AllocationGame LoopsState MachinesLow-Level C
INFRA & TOOLS
AWSDockerGitGitHub ActionsLinuxRazorpayBunny.net CDN
AI CONTENT
AI AvatarsVoice CloningAI Video GenerationAI Image Generation
// achievements

Recognition & milestones.

Open Source Haystack

11 merged PRs and 2 improvement proposals to deepset-ai/Haystack, a widely-used open-source LLM orchestration framework.

1000+ DSA Problems

Solved 1000+ Data Structures & Algorithms problems across LeetCode, Codeforces, and other competitive programming platforms.

YouTube 1.4K Subs, 250K+ Views

Built a tech & AI content channel with 1.4K subscribers and 250K+ views. Some videos produced entirely with AI avatar, AI voice, and AI-generated visuals.

Tech-Sangam (PW + AWS)

Ranked Top 10 out of 50+ teams at Tech-Sangam, developing a gamified learning prototype featuring point-based question solving, unlocks, and competitive mechanics.

Razorpay AI Buildathon

Participant at the Razorpay AI Buildathon built a multi-agent merchant onboarding pipeline.

Hacktoberfest 2024

Merged 4 PRs during Hacktoberfest 2024 and earned the official contributor badge.

// education

Academic foundation.

Bachelor of Technology Computer Science & AI

2023 – 2027

Newton School of Technology, Rishihood University

CGPA: 8.57 / 10.0
KEY COURSEWORK
Data Structures & AlgorithmsOperating SystemsDBMSComputer NetworksComputer ArchitectureSystem Design
// let's connect

Got something interesting?
Let's talk.

I'm always open to exciting opportunities, collaborations, or just a good conversation about tech and AI. Drop me a line.

rajritik2425@gmail.com

+91 9113132537

Designed & Built by Ritik Raj | 2026