Ayush Joshi

Generative AI Engineer

Experience

Software Engineer

Tidyhire · Hyderabad, India · Jul 2024 – Present
  • Architected Charlie, an autonomous AI Interviewer conducting 60+-minute technical interviews; achieved 90%+ alignment with human hiring decisions using a 5-phase post-call analysis pipeline with OpenAI GPT-5-mini and Claude 4.5 Sonnet.
  • Architected Sentinel, a high-throughput proctoring engine (FastAPI/Celery/Redis) detecting AI-assisted cheating via a 60/40 weighted ensemble of behavioral forensics and semantic fingerprints.
  • Engineered Ria, a real-time voice screening agent handling 100,000+ conversation minutes; optimized the voice pipeline using LiveKit, Deepgram, and Cartesia Sonic-3 to achieve sub-second response times and 98.8% turn-detection accuracy.
  • Developed Brief, an intelligent script-builder using Claude 4.5 Sonnet's Extended Thinking and mathematical modeling to optimize interview duration and ensure 100% coverage of required technical competencies.
  • Built a high-concurrency Dispatcher Microservice on GCP Cloud Functions (Gen 2) using FastAPI and Pydantic; orchestrated job queuing and async webhook processing for 100+ concurrent LiveKit sessions.
  • Implemented Insights, a Dual-Path Skill Synthesis Framework using ChromaDB and 3072-dimensional semantic embeddings to evaluate technical depth (60%) vs. practical application (40%).

Software Engineer Intern

Tidyhire · Hyderabad, India · Jan 2024 – Jun 2024
  • Built a LinkedIn integration API achieving 100% profile extraction accuracy while mimicking human behavior to bypass anti-bot detection—used in 100+ outreach operations.
  • Developed a modular system to detect and adapt to DOM and UI changes in LinkedIn, ensuring 100% continuity in automation scripts during weekly updates.

Devin Mentor

Cognition Labs · Silicon Valley, US · Apr 2024 – May 2024
  • Evaluated 1,000+ prompt-response sequences to identify edge-case failure modes, leading to reduction in hallucination rates.
  • Researched open-source libraries (Django, scikit-learn) to improve Devin's code suggestions through deeper understanding of library internals.

Projects

memory

Python

Document ingestion engine that chunks and indexes knowledge sources into Qdrant for LiveKit agent contextual retrieval. FastRAGPipeline with async support.

inb 126 stars

Python

LinkedIn automation tool using the Voyager API. Automates connection requests, messaging, and skill endorsements.

nuro

Python

Lightweight ML library implementing algorithms from scratch with numpy. Includes deep learning roadmap and interactive documentation.

tscore

Python

Sentiment analysis using logistic regression trained on Twitter data to classify tweet polarity.

stlc

C

Standard Template Library for C providing StringStream, Vector, Map, and file system routines. Dependency-free.

xtest

C++

Minimal C++ unit testing framework inspired by Google Test. Simple TEST macro API for writing assertions.

argparse

Java

Lightweight command-line argument parsing library with no external dependencies. Supports options, flags, and positional arguments.

changelog

C++

Changelog generation tool for managing version history and release notes.

wizard

JavaScript

Interactive algorithm visualization platform with step-by-step playback, code highlighting, and complexity analysis.

gita

JavaScript

Web-based PDF application for writing PDF documents using Markdown.

Skills

Languages

Python JavaScript C++ C Java

Generative AI

OpenAI (GPT-4/4.1/5) Anthropic (Claude 4/4.5) RAG Prompt Engineering Extended Thinking Semantic Embeddings

Orchestration

LangChain LangGraph

Voice & Real-time

LiveKit (WebRTC) Deepgram (STT) Cartesia (TTS) VAD Tuning

Backend & Infrastructure

FastAPI Pydantic Celery Redis GCP MongoDB ChromaDB Qdrant

Education

Bachelor of Computer Application

Shri Guru Ram Rai School of Engineering & Technology, Dehradun · Sep 2021 – May 2024