Arnab Das

Software Engineer

Kolkata, West Bengal, India6 yrs 3 mos experience
Most Likely To RespondAI ML Practitioner

Key Highlights

  • Proven track record in building production-grade AI solutions.
  • Expertise in modern full-stack development and AI implementation.
  • Strong focus on system design and scalable architectures.
Stackforce AI infers this person is a Full-Stack Developer with a strong focus on AI solutions in SaaS and HealthTech.

Contact

Skills

Core Skills

Next.jsAi ImplementationRest ApisBackend DevelopmentMobile DevelopmentFrontend Development

Other Skills

AngularAngularJSBootstrapC++CSSCascading Style Sheets (CSS)Chroma DBGitGroovyHTMLHTML5JavaJavaScriptKafkaLogging

About

IIT Roorkee graduate with a proven track record of building production-grade AI solutions that transform complex challenges into practical realities. My expertise bridges the gap between innovative concepts and scalable, market-ready applications. Recently joined AIonOS to engineer next-generation intelligent systems that push technological boundaries while delivering tangible business value. During my tenure at ARThink AI, I architected sophisticated conversational platforms and healthcare applications that significantly improved user engagement metrics and operational efficiency through technical excellence. My foundation combines deep expertise in modern full-stack development (React, Next.js, Node.js, Django) with specialized knowledge in AI implementation (LLMs, vector databases, RAG architectures, agentic AI etc). This unique intersection enables me to craft solutions that are not only technically sophisticated but strategically valuable. What truly drives me is the art of system design—translating abstract requirements into elegant architectures that scale gracefully. Whether optimizing existing systems or building from first principles, I bring both precision and creativity to every challenge. Open to connecting with forward-thinking professionals who share a commitment to leveraging technology for meaningful innovation. Email: imarnab01@gmail.com | Phone: +916296540769

Experience

Aionos

Software Engineer

Feb 2025Present · 1 yr 1 mo · Gurugram, Haryana, India

  • 1. Generic Rest Caller -
  • Built a configurable microservice enabling internal systems to call any external REST API via a single unified endpoint and payload, reducing integration overhead and coupling.
  • Designed dynamic request/response mapping logic to support flexible headers, query params, and payloads, enabling reusable, environment-aware configurations.
  • Engineered modular architecture with middleware for logging, validation, and error handling, ensuring scalability and clean separation of concerns.
  • Abstracted API communication layer to promote loose coupling across services and simplify third-party integrations.
  • 2. AI Voice Assistant (Powered by Ultravox AI) -
  • Built a full-stack AI voice assistant in Next.js and TypeScript that enables real-time voice conversation, live transcription, and user-interactive tool execution.
  • Integrated OpenAI APIs (GPT & Whisper) for speech recognition, conversation handling, and document-based Q&A with contextual memory and response.
  • Designed real-time transcription UI and chat interface, with persistent storage of call history and user sessions.
  • Engineered document upload and search functionality, using OpenAI embeddings and Pinecone vector DB to enable semantic document querying.
  • Implemented OpenAI function calling to dynamically invoke external tools (e.g., flight detail retrieval) based on user prompts in conversation.
  • 3. Workflow Agent (Python) -
  • Built and optimized a concurrent voice workflow engine using Kafka, Redis, and PostgreSQL, enabling scalable task orchestration and reliable state persistence.
  • Implemented an event-driven architecture with Redis pub/sub and Kafka queues to manage asynchronous task execution across distributed agents.
  • Designed a persistent job tracking system ensuring high reliability and fault tolerance across voice workflow sessions.
  • Refactored modules for multi-threaded execution and concurrency, boosting system speed and throughput under load
REST APIsNext.jsTypeScriptOpenAI APIsKafkaRedis+2

Arthink ai

Software Engineer

Jan 2024Jan 2025 · 1 yr · Hyderabad, Telangana, India · On-site

  • QUADZ AI:
  • Developed a chatbot system integrating Python and Node.js backend operations, increasing user engagement.
  • Implemented Node.js APIs for data sources (website scraping, PDF text extraction, MongoDB), enhancing data acquisition efficiency.
  • Designed Python APIs for vector database functionalities using Chroma DB and Pinecone, improving data querying speed.
  • Integrated OpenAI LLMs for advanced question-answering, elevating chatbot AI features.
  • OnFit.AI:
  • Implemented core features like FCM Push Notifications, Permission Manager, Socket.io connection, and custom gesture handling for a React Native app.
  • Debugged and fixed runtime bugs, enhancing app stability and performance.
  • Improved chat loading and app performance by optimizing component rendering.
  • Developing a one-to-one video conferencing feature leveraging WebRTC and WebSocket for peer-to-peer video chats.
PythonNode.jsOpenAI LLMsMongoDBChroma DBPinecone+2

Srm software inc

Junior Software Engineer

Jan 2023Sep 2023 · 8 mos · Vancouver, British Columbia, Canada · Remote

  • Worked on the mobile application of the in-house workbrain product, developed forms, and supervised UI features.
  • Developed and debugged features of the ETM application.
  • Worked closely with the team to debug and test existing and assigned feature changes to me.
  • Wrote groovy scripts and implemented core features of the workbrain application for one of the cloud-based clients.
  • Tech Stacks used - Java, Groovy, JavaScript, MsSQL, Angular, etc.
JavaGroovyJavaScriptMsSQLAngular

Tradebuilder

Software Engineer

May 2022Jul 2022 · 2 mos · San Jose, California, United States · Remote

  • Worked on e-commerce application for mid-scale boutiques and influencers market.
  • Developed web pages and components using NextJs, TypeScript, CSS, and SCSS.
  • Integrated user-end dashboard for product listing on the front-end app.
  • Integrated the pages with REST API for real-time data and handled user authentication in the front-end app.
Next.jsTypeScriptCSSSCSSFrontend Development

Outshade digital media

Full Stack Developer (NextJS)

Feb 2022Mar 2022 · 1 mo · Hyderabad, Telangana, India

  • Worked on FinTech applications as a full-stack developer.
  • Developed website pages and components using NextJs, TypeScript, and SCSS.
  • Built REST APIs using NodeJS and integrated with the front-end app
Next.jsTypeScriptSCSSFrontend Development

Cartel101

Web Developer

Jun 2021Jul 2021 · 1 mo · Hyderabad, Telangana, India

  • Modified the front-end app (dashboard) for the hospital management system on ReactJs and Material-UI.
  • Built new components and pages, and debugged and fixed existing components and pages.
  • Integrated the API to the app and updated the CSS of existing pages to optimize the user experience
ReactJSMaterial-UIFrontend Development

Adwaita educare

Web Development Intern

Apr 2021Jun 2021 · 2 mos · Maharashtra, India

  • Developed the front-end app using ReactJS, Bootstrap, and Redux and integrated several systems.
  • Integrated an OTP-based multi-step user registration system with JWT authentication (JSON Web Tokes).
  • Integrated the payment gateway using Razorpay.
  • Built custom CSS and helper functions to enhance app performance across all platforms and devices
ReactJSBootstrapReduxFrontend Development

Zixwer

Lead Developer (Front End)

Oct 2020Feb 2022 · 1 yr 4 mos

  • Led multiple projects undertaken by Zixwer.
  • Developed the official website of Zixwer
  • Developed and delivered pixel-perfect complex frontend project within the deadline.
  • Worked on the core in house SRM and School management product
  • Tech stack -> ReactJS, JavaScript, NextJS, TypeScript, Html, CSS, Redux etc.
ReactJSJavaScriptNextJSTypeScriptHTMLCSS+1

National social summit, iit roorkee

Technical Head

Sep 2020Mar 2021 · 6 mos · IIT Roorkee

  • Developed the frontend app using ReactJs, Bootstrap, Redux, and CSS from a custom design.
  • Built a REST API using Django and connected it to a MySQL database.
  • Integrated the backend with Send In Blue SDK for custom mail service upon participant's registration.
  • Securely deployed both the apps on AWS EC2 instance using Nginx and added free certbot SSL certificates.
ReactJSBootstrapReduxFrontend Development

Bechho

Web Developer

Aug 2020Oct 2020 · 2 mos · Delhi, India

  • Bechho is India's first social e-commerce and re-commerce offline to online (O2O) platform which provides a two-way marketplace for users, shops, and businesses. Bechho lets anyone across India sell their used goods hyper-locally and locally by connecting them directly to re-commerce shops and other users in their hyperlocal vicinity, and simultaneously provides shops and businesses a platform to sell their products PAN India with social e-commerce.
ReactJSFrontend Development

Nss iit roorkee

3 roles

Cell Secretory

Jul 2020Jun 2021 · 11 mos · Roorkee, Uttarakhand, India

  • || Cell Secretory of Web Development cell, National Service Scheme, IIT Roorkee ||
  • Led and guided a team of 14 Volunteers and 4 Executives as the overall technical head of NSS IIT Roorkee.
  • Reviewed and debugged the codebase for the front-end app fixed issues and updated features.
  • Built a REST API using Django, integrated user authentication and APIs with the admin dashboard of NSS.
  • Securely deployed the front-end, back-end, and admin dashboard of NSS on AWS EC2 using Nginx and added SSL certificates
  • to the front-end app.
  • 2-time Recipient of the best Cell Secretary of the Month (September 2020, May 2021) award by NSS IIT Roorkee

Executive

Promoted

Apr 2019May 2020 · 1 yr 1 mo

ReactJSFrontend Development

Volunteer

Jul 2018Apr 2019 · 9 mos

  • • Awarded as Dedicated Volunteer for the session 2018-2019 among 400+ volunteers

Expidense

Web Developer

Jul 2020Sep 2020 · 2 mos · Hyderabad, Telangana, India

  • I have worked as a full stack developer on Angular and Django powered apps respectively.
ReactJSFrontend Development

National social summit, iit roorkee

Manager

Oct 2019May 2020 · 7 mos

  • National Social Summit 2019, IIT Roorkee (an inter-institutional meet) aims at giving a platform to
  • different organizations that work for society to come together and join hands to make a greater impact on the ground level.
  • Developed the front end for the National Social Summit 2020.
  • Optimized front-end codes to increase app performance and enhance user interactions and experience

Education

Indian Institute of Technology, Roorkee

INTEGRATED M.Tech — Geophysical Technology

Jan 2018Jan 2023

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