Abhigyan Raj

Full Stack & AI Engineer | Ex-Instafix & Ex-Stremly | B.Tech Student @IIIT Delhi

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A little about me,

About

Hello! (^ω^)

• I'm Abhigyan, a Full Stack & AI Engineer from India.
• I specialize in AI/ML, Full Stack Development, Automation Systems, and Cloud Platforms.
• I build scalable applications, integrate AI models, and create automation workflows that solve real-world problems.
• Tags: AI enthusiast, full-stack developer, problem solver, quick learner, team player.

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Tech Stack

Skills

Languages: C, C++, Python, JavaScript, TypeScript, HTML, CSS
Frameworks & Libraries: React.js, Next.js, Node.js, Express.js, FastAPI, Electron.js, React Native, Tailwind CSS
Databases & Caching: MongoDB, PostgreSQL, Redis, Firebase, Vector DBs (Qdrant, Atlas Vector Search)
AI & LLM Engineering: RAG Pipelines, LLM Agents, Function Calling, Google Gemini, OpenAI API, Prompt Engineering
Backend & System Design: REST APIs, WebSockets, Multi-tenant Architecture, Microservices, Scalable Systems
Tools & DevOps: Git, GitHub Actions, AWS, GCP, Postman, Vercel, Railway, Render, Figma

Experience

Profile

SDE Intern

Instafix — Gurugram, India (On-site)
Nov 2025 – Apr 2026

• Architected and built a technician mobile app end-to-end (React Native + Expo) — designed full backend architecture, REST APIs, data models, and edge-case handling for a production repair-services platform.
• Engineered a device quality-check system running 15+ hardware diagnostics (display, speaker, sensors) on-device, functionally superior to M360, used in live technician workflows.
• Designed modular backend services with clean RESTful abstractions, focusing on scalable data flows and seamless web-mobile integration.

AI Engineer

Stremly — Dublin, Ireland (Remote)
Sep 2025 – Nov 2025

• Built the NoX agentic RAG pipeline (FastAPI + WebSockets + Qdrant + FastEmbed), orchestrated multi-agent workflows reducing task-execution latency to under 2s across 50+ automation workflows.
• Integrated JIRA, Notion, and Slack via MCP, automating 20+ real-world issue/page creation workflows; supporting 1K+ retrieval queries during enterprise testing.
• Deployed manager server and automation agents handling cross-platform UI automation via Google Gemini with context-aware tool selection.

Full Stack Developer

Foodoscope CoSyLab — IIIT Delhi
Aug 2025 – Dec 2025

• Built data-rich dashboards and optimised frontend components (MERN stack) for computational food APIs spanning nutrition, health, and sustainability domains.
• Developed and maintained structured backend APIs for food datasets; translated research models into scalable user-facing applications with reliable deployments.

Education

Academics

IIIT-Delhi

B.Tech in Electronics and Communications Engineering
2023 – 2027 (Expected)

CBSE Board – Aryan International School & St. Joseph Academy

Class XII: 81.4%, Class X: 96.4%
2020 – 2023

Projects

Work

Wuup | Next.js, Node.js, PostgreSQL, Redis, LLMs, RAG, Turborepo Apr 2026 – Present
• Built a multi-tenant AI platform to query live databases (MongoDB, PostgreSQL, Google Sheets) in natural language with workspace-scoped data isolation.
• Architected RAG pipeline with hybrid vector search, re-ranking, and model rotation across 4 Gemini models, 100% query uptime under rate limits via exponential backoff.
• Designed Brain Orchestrator with priority-based context eviction, LLM function calling, and structured meta-response protocol for dynamic UI rendering.
Live | GitHub | Docs

Voicely | React, Node.js, Express, MongoDB, Twilio, Deepgram, Gemini, TTS Jul 2025 – Present
• Built a real-time voice AI platform with end-to-end streaming pipeline (STT → LLM → TTS) achieving <1.5s latency and Rs 1.5/min cost via token streaming.
• Integrated Twilio, Deepgram STT, Gemini, barge-in detection, 12+ languages, contextual memory, and Telegram summaries; deployed on Vercel.
GitHub | Docs

Vok.Chat | React, WebRTC, Socket.IO, Node.js, Tailwind CSS, Vite Jul 2025 – Aug 2025
• Built a peer-to-peer video chat platform using WebRTC and Socket.IO with auth, real-time signalling, and responsive UI; deployed for 100+ users.
Live | GitHub

Angry Birds Game | Java, libGDX, Figma, Gradle Aug 2024 – Dec 2024
Recreated Angry Birds mechanics with modular screens using libGDX and Gradle.
• Designed assets/UI in Figma and optimized game performance.
Demo | GitHub

Real-Time Object Detector | Python, OpenCV, YOLOv3, Computer Vision Sep 2024 – Dec 2024
Implemented YOLOv3-based object detection with OpenCV at 30 FPS.
• Detected 80+ object classes with real-time bounding boxes and confidence scores.
GitHub

Awards and Achievements

awards

  • Winner – Epoch Hackathon, IIIT Delhi (2025); built IndieCraft, a platform to help local artisans sell handmade products online.
  • Certified – Earned 5-star ratings in Python and C++ on HackerRank; certified in problem-solving and CS fundamentals.
  • Rated – CodeChef current rating: 1263; regular participant in rated contests.
  • Top Scorer – Achieved 10.0 GPA in Advanced Programming (CSE201) at IIIT Delhi.

Interests and Hobbies

Hobbies

  • Passionate Filmmaker, Director, and Photographer.
  • Guitarist, Singer, and Songwriter with a love for creating and performing music.
  • National-level Badminton player with a deep enthusiasm for sports.

Let's Talk

Contact

Not a founder but would love to ideate on interesting problem statements, both Tech and Non-Tech, and create some impact together. Always open to side projects, collaborations, and discussions.
Drop a mail at: abhigyan23018@iiitd.ac.in | Call: +91-8595192809