Fullstack Developer

1 day ago

Gurgaon, Haryana, India Insybit Full time ₹ 20,00,000 - ₹ 25,00,000 per year

Founding Full Stack Engineer (Voice + AI CRM Platform)

Gurgaon | Onsite | Full-time

We're building a voice-first, multilingual AI assistant that works across calls, WhatsApp, web, and email, with deep integrations into CRM, LMS, and booking systems. Alongside, we're developing an agentic AI-powered CRM and Lead Management System to streamline sales, support, and engagement across industries like hospitality, Real Estate, BFSI, healthcare.

As our Founding Full Stack Engineer, youll take ownership of the end-to-end architecture and development of this platform from building APIs and dashboards to integrating voice, AI, and messaging systems. Youll work closely with the founder and AI engineer to bring this vision to life.

Location : Gurgaon, Work from Office.

You can apply on below link or send your resume to

Role & responsibilities

  • Design and develop scalable backend services using + Express or Python + FastAPI
  • Design frontend systems (chat widget + admin dashboards+websites) using React + Tailwind
  • Design & Build AI CRM with features like lead management, agent assignment, status tagging, history tracking, and analytics
  • Build lead management workflows: submission, scoring, tagging, follow-ups via WhatsApp/email/Voice
  • Integrate telephony or IVR platforms like Twilio, Exotel, or Ozontel for calls and voicebots.
  • Create the technical architecture of the system.
  • Design and develop database schema as per the requirement
  • Integrate WhatsApp APIs (Gupshup or Twilio) and handle conversational workflows
  • Collaborate with AI engineer to implement - GPT-4/Gemini-based conversation flows, Post-call analysis (Whisper/Gemini STT),
  • Multilingual memory and tone detection logic.
  • Design robust MongoDB/PostgreSQL schemas and APIs
  • Deploy and manage infrastructure via AWS/GCP/Azure with CI/CD and observability
  • Ensure high uptime, secure data handling, and fast responses across all channels

Must have Skills:

  • 36 years of full-stack development experience, preferably in startups or fast-paced teams
  • Strong proficiency with , React, MongoDB, REST APIs, and webhooks
  • Experience building admin tools, internal CRMs, or customer-facing dashboards
  • Deep understanding of database design, caching, and async workflows
  • Hands-on with modern frontend (Tailwind, component libraries)
  • Strong Experience with GitHub workflows, CI/CD pipelines, and cloud deployments on AWS/GCP/Azure

Bonus:

  • Experience working with OpenAI, Gemini, or other LLMs
  • Experience integrating STT engines (e.g., Whisper, Google STT) or AI classifiers
  • Redis or vector DB familiarity for user memory or personalization
  • Prior work on chatbots, voicebots, or conversational flows
  • Exposure to building or integrating LMS/CRM platforms
  • Integrated telephony and whatsapp APIs like Twilio, Exotel, or Ozontel

Preferred candidate profile

If you're excited about building from scratch and shaping the future of AI-driven, voice-first CRM platforms, wed love to hear from you.

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