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Yuvrajnode/README.md

Yuvraj Singh, Software Development Engineer

Typing SVG

SDE at Innovativus  ·  B.Tech CSE, VIT  ·  Uttarakhand, India

LinkedIn   Email   GitHub   Resume   Instagram   Profile views


Now

Software Development Engineer · Innovativus Technologies
Jul 2026 – present · Delhi

  • Production voice AI platform: real-time, two-way conversations with AI assistants grounded in a RAG knowledge base
  • Zero-shot voice cloning with F5-TTS and Supertonic TTS
  • Twilio phone assistant on a low-latency STT → LLM → TTS pipeline, 55% faster call handling

Software Engineering Intern · Innovativus Technologies
Apr – Jun 2026 · promoted to SDE after 3 months

  • SEO-tuned Next.js site with SSR, 95+ Lighthouse, +35% organic traffic
  • Python scraper over 7+ vendor sources with LLM summaries, 40% less manual reporting
  • Docker + GitHub Actions CI/CD, release cycles 50% shorter

Featured projects


Autonomous AI Coding Agent
Python · LangGraph · RAG · pgvector

Plan–act–observe agent with tool use, long-term memory, observability and evals. 80%+ completion on multi-step coding tasks.

LLM Fine-Tuning & Eval Pipeline
PyTorch · Hugging Face · LoRA/PEFT · RLHF

Fine-tunes an open LLM on 10k+ examples (+25% task accuracy) and benchmarks 15+ checkpoints automatically.

Real-Time Crypto Exchange
Next.js · TypeScript · WebSockets · Redis

Live order book and candlesticks for 100+ pairs, streamed to 1,000+ concurrent clients. Live demo

Doodle Space
Next.js · Turborepo · WebSockets

Collaborative whiteboard with an infinite canvas and multi-user sync.

Connect Four
React · Node.js · Socket.IO · PostgreSQL

Real-time multiplayer with a bot, reconnection and a leaderboard. Play

Web-Based Wallet
React · Solana · Ethereum · BIP39/44

HD wallet for Solana and Ethereum in the browser. Live demo


Open Source

Seven projects, about 490k stars between them. Seven of my patches are merged upstream.
Mostly small correctness fixes in code I hit while building something else.


Project Pull requests

  huggingface/​transformers
Python · the model library

merged  #47509 Phi-4 Multimodal vision embedding init
merged    #47558 Pix2Struct attention sized from d_kv

  safedep/vet
Go · supply-chain scanner

merged  #757 Propagate GitHub org scan errors
merged  #760 Match npm registry by hostname, not full URL
closed  #761 Surface malicious package lookups that never completed

  fishaudio/​fish-speech
Python · TTS and voice cloning

merged    #1317 Honour the recursive flag in list_files()
merged    #1318 Dispatch on type, not tuple length
merged    #1319 Validate reference args up front

  calcom/cal.diy
TypeScript · scheduling

closed   #29954 Sort duration badges numerically

  n8n-io/n8n
TypeScript · workflow automation

closed   #20393 Timezone-aware date formatting across the frontend

  freebsd/​freebsd-src
C · FreeBSD source tree

closed   #2384 libusb: Validate arguments before dereferencing the hotplug context
closed   #2383 libusb: Fix NULL dereference when a hotplug callback deregisters itself

  processing/p5.js
JavaScript · creative coding

closed   #9027 Clarify p5.Vector is always 3-component

All pull requests  ·  Merged only


Stack


Python, TypeScript, JavaScript, Java, Rust, Solidity, Bash


AI, LLMs and voice

PyTorch   Hugging Face LangChain and LangGraph OpenAI Twilio Voice
RAG with pgvector and Pinecone Fine-tuning with LoRA and RLHF Agents, tool use and evals Voice: F5-TTS, Supertonic, speech to text


Frontend
React, Next.js, Tailwind, Figma

Backend and data
Node.js, Express, Redis, Postgres, MongoDB, MySQL, Prisma

Infra
Docker, Kubernetes, AWS, GitHub Actions, Nginx, Grafana, Prometheus

Web3 and tooling
Git, Postman, Neovim, VS Code

Solana Ethereum


Activity


The same contributions as an isometric 3D city


Pinned Loading

  1. exchange exchange Public

    Real-time crypto trading terminal: live order book, candlestick charts and trades streamed over a multiplexed WebSocket. Next.js 15, React 19, TypeScript.

    TypeScript 7 1

  2. Solana-Launchpad Solana-Launchpad Public

    A Solana Token Launchpad built with React and Vite for creating SPL tokens, designed with a clean UI and wallet-ready architecture for future Web3 integrations.

    JavaScript 3

  3. Ethereum-wallet-adapter- Ethereum-wallet-adapter- Public

    Ethereum wallet adapter built with React, Vite, wagmi & Viem — enabling seamless Web3 wallet connection, address management, and scalable Ethereum interactions.

    JavaScript 2

  4. vet vet Public

    Forked from safedep/vet

    Protect against malicious open source packages 🤖

    Go 2

  5. Autonomous-AI-Coding-Agent Autonomous-AI-Coding-Agent Public

    Autonomous coding agent in Python: plan–act–observe tool-use loop, long-term memory, RAG over pgvector, LLM observability and automated evals.

    Python 2

  6. LLM-Fine-Tuning-Evaluation-Pipeline LLM-Fine-Tuning-Evaluation-Pipeline Public

    End-to-end pipeline to fine-tune open LLMs with LoRA/PEFT and RLHF, then benchmark checkpoints automatically with Hugging Face Transformers.

    Python 2