Happy Yadav

AI Researcher

Gurugram, Haryana, India2 yrs 2 mos experience
AI EnabledAI ML Practitioner

Key Highlights

  • Expert in real-time Voice AI and Generative AI systems.
  • Proven track record in building low-latency AI pipelines.
  • Experienced mentor and consultant in AI technologies.
Stackforce AI infers this person is a Backend-heavy Fullstack AI Engineer specializing in Voice AI and real-time systems.

Contact

Skills

Core Skills

Voice AiBackend EngineeringReal-time CommunicationMentorshipAi ConsultingData AnalysisBackend Development

Other Skills

ASRGoogle Cloud Platform (GCP)WebRTCVoIPPostgreSQLOpenAI GPT-4o-miniWhisper ASRDeepFilterNetLiveKitTwilioExotelArtificial Intelligence (AI)AutomationSQLMicrosoft Power BI

About

Hi I'm an AI Engineer focused on real-time Voice AI, Generative AI systems, and scalable backend architectures. I'm Currently building low-latency voice-to-voice pipelines, telephony-integrated conversational agents, and multi-agent LLM systems used in production environments. I do have hands-on experience with STT–LLM–TTS pipelines, WebRTC and VoIP systems, multi-agent orchestration using frameworks like LangGraph, LangChain, Pipecat, Livekit , and cost-aware inference optimization across OpenAI, Gemini, Groq models. I’ve also designed and optimized RAG-based chatbots with semantic retrieval pipelines, embedding optimization, context compression strategies, and structured response control for high-accuracy domain-specific use cases. Alongside this, I’ve worked on MCP tool ecosystems, enabling dynamic tool routing and controlled agent-tool interaction layers. Built real-time WhatsApp conversational bots and automation systems, including workflow-driven travel management solutions operating fully within messaging environments, handling structured data capture, async orchestration, and production-grade reliability constraints. I work at the intersection of AI systems, distributed backend engineering, and real-world deployment constraints focusing on latency, cost, observability, and scale. I'm actively sharing learnings around Voice AI, LLM infrastructure, RAG systems, and production-grade AI system design.

Experience

2 yrs 2 mos
Total Experience
1 yr 2 mos
Average Tenure
9 mos
Current Experience

Easemytrip.com

AI Engineer

Aug 2025Present · 9 mos · On-site

  • Built an end-to-end V2V (voice-to-voice) AI pipeline using OpenAI GPT-4o-mini Realtime, Gemini native thinking-audio model, Whisper ASR, and modular STT→LLM→TTS pipelines. Achieved <220ms latency via chunked audio streaming, adaptive buffering, server-side VAD tuning, and preemptive interruption control. Integrated DeepFilterNet, improving speech clarity by ~32%.
  • Engineered the complete real-time communication layer using LiveKit (WebRTC), custom WebSocket audio streaming, and VoIP-level μ-law/Opus experiments with RTP jitter optimization. Integrated Twilio + Exotel for scalable telephony with bidirectional audio, G711 μ-law transcoding, FFmpeg preprocessing, and async worker orchestration — resulting in 98%+ call stability and ~40% packet-jitter reduction.
  • Led R&D across major voice AI providers (OpenAI, Gemini, Anthropic, Groq, Deepgram) implementing token-aware routing, latency-based model selection, and compression-optimized payloads. Improved inference throughput by ~35% while reducing per-call operational cost. Designed PostgreSQL-backed async NLP architecture with multi-stage entity extraction and multi-channel support (Telephony, WhatsApp, Telegram).
ASRGoogle Cloud Platform (GCP)WebRTCVoIPPostgreSQLVoice AI+1

Topmate.io

Mentor

May 2025Present · 1 yr

  • Providing personalized 1:1 mentorship on technology, AI, and freelancing, empowering clients to enhance their skills.
  • Conducting live webinars on automation and agent technologies, fostering real-world applications and knowledge sharing.
  • Offerring strategic business consultations to streamline processes, transforming manual tasks into efficient systems.
Artificial Intelligence (AI)AutomationMentorshipAI Consulting

Hunar.ai

Back End Developer

Jul 2024Aug 2024 · 1 mo

  • In my capacity as a data analyst, I oversee the extraction of backend databases from a diverse client base using SQL queries in Retool, and I develop paginated reports in Power BI. This approach enhances report generation efficiency by 30% and optimizes access management for Hunar.ai’s client portfolio of over 20+ organizations. Each database, comprising more than 100,000+ entries, is managed with precision to ensure accurate and timely reporting.
SQLMicrosoft Power BIData AnalysisBackend Development

Coding ninjas cuiet

2 roles

Technical Director

Jun 2024May 2025 · 11 mos · Rajpura, Punjab, India · On-site

  • Led technical events and hackathons within the club, including developing event websites, coordinating with seniors for guidance, and mentoring peers in exploring new opportunities.
  • Organized and managed multiple initiatives, fostering collaboration, innovation, and hands-on learning for members to gain exposure to real-world problem-solving and technical growth.

Technical Executive

Mar 2024Jun 2024 · 3 mos · Rajpura, Punjab, India · On-site

Education

Chitkara University

Bachelor's degree

Sharda International School - India

Physics — Chemistry & Mathematics

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