Syed Mehedi Hasan Nirob, Developer in Patuakhali, Barisal Division, Bangladesh
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Syed Mehedi Hasan Nirob

Bio

Nirob started his professional journey in 2016 as an app developer and is now managing an engineering team. He is the founding engineer of Retune, an AI chatbot builder. In the last five years, he has been part of the core software engineering team at three YC-funded startups and several other projects. He built core features, contributed to their MVP, and helped them scale up. Web app development in TypeScript and JavaScript libraries and frameworks is his main expertise in the IT industry.

Portfolio

Kad AI
Quality Assurance (QA), Automation, Integration, Bots, Admin Panels, Python...
Henrique Torres
OpenAI, GitHub, Google Cloud Platform (GCP), Google Development Tools...
Sunnyboy Publishing Ltd
Payment Processing, Digital Resources, Healthtech, Healthcare, Node.js, React...

Experience

  • TypeScript - 5 years
  • React - 5 years
  • CSS - 5 years
  • MySQL - 4 years
  • Tailwind CSS - 4 years
  • Next.js - 4 years
  • Node.js - 3 years
  • React Native - 2 years

Preferred Environment

MacOS, Linux, iOS, Visual Studio Code (VS Code), GitHub

The most amazing...

...thing I developed was an AI chatbot builder with my friends that we launched on AppSumo, which now has 20,000 users.

Work Experience

Vapi Voice Bot Developer

2026 - PRESENT
Kad AI
  • Implemented end-to-end VAPI order ingestion pipeline (tool/webhook payload handling, schema validation, fallback parsing, idempotency, and secure webhook handling) to reliably capture call-based orders.
  • Built a full multi-tenant architecture (organizations, org switching, memberships, and invitation-based onboarding) with proper org-level data isolation for bots, locations, and team access.
  • Developed an owner-facing Orders Queue module with filters, pagination, and order detail views, powered by back-end APIs and org authorization checks.
  • Delivered production-ready order notifications via Resend (email) and Telnyx (SMS), including recipient resolution, per-org opt-in logic (send_sms_email), and detailed provider-level error logging.
  • Stabilized and extended integrations/admin workflows across the portal: multi-bot support, per-location bot assignment, improved test-connection diagnostics, and migration-safe database upgrades for fast iteration in production.
Technologies: Quality Assurance (QA), Automation, Integration, Bots, Admin Panels, Python, Node.js, React, API Integration, TypeScript, APIs, Vercel, Voice, POS, AI Chatbots, AI-enabled Applications, Supabase, Supabase Auth, Webhooks, Telnyx, Resend

Developer for AI-powered customer service

2025 - 2026
Henrique Torres
  • Designed and implemented a production-grade WhatsApp AI assistant using Twilio, Chatwoot, and n8n, enabling automated customer interactions, order processing, and real-time responses.
  • Built an LLM-powered conversational pipeline with intent detection, structured JSON outputs, and dynamic response generation, achieving 95%+ intent classification accuracy and significantly improving automation reliability.
  • Developed scalable workflow automation using n8n, orchestrating multi-step processes including product lookup, validation, database operations (PostgreSQL), and external API integrations.
  • Implemented human-in-the-loop system architecture, allowing seamless handoff between AI and support agents via Chatwoot inbox, improving customer experience and operational efficiency.
Technologies: OpenAI, GitHub, Google Cloud Platform (GCP), Google Development Tools, Large Language Models (LLMs), Artificial Intelligence (AI), AI Chatbots, n8n, JavaScript, TypeScript, Twilio, Amazon Web Services (AWS), Amazon EC2, Retrieval-augmented Generation (RAG), Python, OpenAI API, WhatsApp Business, WhatsApp API, PostgreSQL, Agentic AI, Prompt Engineering, Workflow Automation & System Integration, Machine Learning

React/Node.js Healthtech Deployment Specialist

2025 - 2025
Sunnyboy Publishing Ltd
  • Built a full-stack healthcare platform from the ground up.
  • Implemented authentication, an admin dashboard, AI-driven chatbots, and secure digital storage.
  • Helped prepare the product for launch by iterating on the UI and resolving critical bugs.
Technologies: Payment Processing, Digital Resources, Healthtech, Healthcare, Node.js, React, Supabase, Generative Pre-trained Transformers (GPT), AI Engineering, Prompt Engineering, Workflow Automation & System Integration, Security

Developer for Chatbot Application

2025 - 2025
FRESH TV INC.
  • Built an admin dashboard to monitor live YouTube chat messages in real time using the YouTube Live Streaming API.
  • Integrated a system to fetch keyword-specific responses from a predefined document for efficient and context-aware replies.
  • Enabled real-time response functionality, allowing admins or bots to send customized or predefined replies directly into the live chat.
Technologies: JavaScript, Python, Artificial Intelligence (AI), Chatbots, Discord Bots, Bots, AI Agents, AI Engineering, Prompt Engineering, Workflow Automation & System Integration, Machine Learning

Founding Engineer

2023 - 2024
Retune
  • Took demo calls for potential users, created a Discord community for product discussion, and gave technical support to the users.
  • Developed the retune web app by implementing core features like embedding to train chatbots with data, showing responses using AI models, capturing info, etc. I also worked on both the front and back end.
  • Led the engineering team and got 20,000 users for our AI chatbot builder during this process.
Technologies: Next.js, TypeScript, MySQL, Node.js, CSS, Google Cloud Platform (GCP), Docker, JavaScript, Full-stack Development, Vercel, PlanetScale, Web Development, Chatbox, AI Chatbots, Landing Pages, Stripe, OpenAI, LangChain, Scalable Application, UI Design, Front-end, Full-stack, Back-end, SQL, Single-page Applications (SPAs), User Interface (UI), B2C, Websites, Web Design, PostgreSQL, Prisma, APIs, Payment Gateways, AI Programming, Open-source LLMs, Debugging, Generative Pre-trained Transformers (GPT), AI Agents, AI Engineering, Agentic AI, Prompt Engineering, Machine Learning

Front-end Software Engineer

2022 - 2022
Gerald (YC W21)
  • Redesigned the mobile app UI for both Android and iOS and added a few small features.
  • Improved the landing page UI with an updated design and fixed responsiveness on different devices.
  • Addressed different product feedback and fixed the issues accordingly.
Technologies: React Native, React, CSS, Tailwind CSS, TypeScript, Android, Mobile Apps, UI Design, Front-end, Single-page Applications (SPAs), User Interface (UI), Websites, User Experience (UX), Mobile Development, Expo

Software Engineer

2021 - 2021
Replo (YC S21)
  • Joined Replo right after the founders got into YC, and built the MVP for Replo, which is a visual React application builder for Shopify.
  • Developed core parts of the application, including visual editor, drag-and-drop features, and CRM integration with Shopify.
  • Fixed bugs and helped to scale up this product at the early stage.
Technologies: React, TypeScript, Tailwind CSS, JavaScript, CSS, Front-end, Full-stack, HTML5, User Interface (UI), B2C, User Experience (UX), Amazon Web Services (AWS), FastAPI, Debugging, Security

App Developer

2020 - 2020
AnyConnect
  • Worked on the app, which was developed in Objective-C and used libraries written in C to stream smart camera data.
  • Built the system for UI testing and wrote Unit tests for the iOS app.
  • Shared feedback to the back-end engineering team that helped to improve the streaming quality.
Technologies: Swift, C++, Objective-C, C, Automated UI Testing, Unit Testing, Mobile Apps, Front-end, B2C, Mobile Development

Software Engineer

2017 - 2019
AlgoMatrix
  • Developed an iOS content aggregator app from scratch using Swift.
  • Fixed bugs and UI issues throughout the app development process and approved the app for the iOS app store.
  • Designed and implemented RESTful APIs for projects in JAVA SpringBoot.
Technologies: Swift, Java, Xcode, Mobile Apps, HTML, Full-stack Development, Python, CSS, UI Design, Front-end, User Interface (UI), Websites, Web Development, Express.js, Firebase, Mobile Development, Angular, Security

Experience

10xlaunch

10Xlaunch identifies website visitors at a personal level and enriches their profiles with name, email, and LinkedIn data. It also sends lead data directly to Slack, making it easy for businesses to take immediate action. I built this platform from the ground up with my team, managing both the front end and back end of the project. 10Xlaunch was named Product of the Day and Week on Product Hunt (https://www.producthunt.com/products/10xlaunch). The project has gained 888 sign-ups, with 260 successful website installations, and generated 14,000 leads for our customers. My role was crucial in architecting the end-to-end solution and supporting users.

Thybrid AI

An app to create your workout program with the power of AI, your fitness trainer. You can chat with the bot, get a n-day workout, and complete or track it within the app. It also has a library of famous WODs which you can get in the app.

Education

2012 - 2016

Bachelor's Degree in Computer Science

Shahjalal University of Science and Technology - Sylhet

Skills

Libraries/APIs

React, Node.js, Stripe, OpenAI API, WhatsApp API

Tools

Prisma, n8n, Expo, Slack, Xcode, GitHub, Chatbox, Google Development Tools

Languages

TypeScript, CSS, JavaScript, HTML, SQL, HTML5, Swift, Python, Java, C++, Objective-C, C

Frameworks

Next.js, Tailwind CSS, React Native, Express.js, Laravel, Angular, Django

Paradigms

UI Design, Scalable Application, B2C, Mobile Development, Unit Testing, B2B, Automation

Platforms

iOS, Visual Studio Code (VS Code), Amazon Web Services (AWS), Firebase, Android, Replit, MacOS, Linux, Google Cloud Platform (GCP), Azure, Docker, Vercel, PlanetScale, Twilio, Amazon EC2, Telnyx

Storage

MySQL, PostgreSQL

Industry Expertise

Web Design, Healthcare

Other

Mobile Apps, Full-stack Development, Web Development, Chatbots, API Integration, OpenAI, Front-end, Full-stack, Back-end, Open-source LLMs, AI Programming, Single-page Applications (SPAs), User Interface (UI), Websites, User Experience (UX), APIs, Payment Gateways, AI-enabled Applications, Debugging, Supabase, Generative Pre-trained Transformers (GPT), AI Agents, AI Engineering, Agentic AI, Prompt Engineering, Workflow Automation & System Integration, Machine Learning, Security, Artificial Intelligence (AI), Customer Relationship Management (CRM), LangChain, Retrieval-augmented Generation (RAG), FastAPI, Framer, Competitive Programming, Software Engineering, Discord, Automated UI Testing, AI Chatbots, Landing Pages, Discord Bots, Bots, Payment Processing, Digital Resources, Healthtech, Large Language Models (LLMs), WhatsApp Business, Quality Assurance (QA), Integration, Admin Panels, Voice, POS, Supabase Auth, Webhooks, Resend

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