Available for freelance & full-time work

Hello, I'm

Arindam Sarkar

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Kolkata-based full-stack developer crafting scalable, user-focused web applications — from inquiry management systems and dashboards to workflow tools and AI-powered experiences.

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Arindam Sarkar, full-stack MERN developer in Kolkata, India
Your Own Cab Booking AppPaperless AI ClinicCRM + WhatsApp AutomationRestaurant POS & QR OrderingGST Billing & InventorySchool & Coaching ERPAI Project ManagementAI Chatbots for Your Website
Never Miss a Lead24x7 Instant RepliesOnline Bookings & PaymentsAutomatic Follow-upsMore Repeat CustomersLive Sales DashboardsGo PaperlessYour Brand, Your AppSave Hours of Staff TimeGrow Online
01 — Services

What I can build for you

End-to-end product engineering — design, build, ship and scale — with AI where it genuinely helps.

Full-Stack Web Development

Production-grade MERN & Next.js applications: API design, database modelling, server logic, third-party integrations and secure auth with role-based access.

  • React
  • Next.js
  • Node
  • Express
  • MongoDB
  • MySQL
New

AI Integration

Chat assistants, smart search, content generation and workflow automation built on modern LLM APIs — wired safely into your existing product.

  • LLM APIs
  • Chatbots
  • Automation

Web & UI/UX Design

Responsive interfaces, design systems and user flows that feel effortless on every screen.

Dashboards & Analytics

Admin panels and real-time reporting that turn raw data into decisions.

Graphics & Branding

Logos, brand identity, marketing creatives, social media graphics and illustrations.

Performance, Cloud & CI/CD

Fast-loading, SEO-friendly builds with automated pipelines and reliable cloud deployment.

02 — AI solutions

AI that does real work

From LLM integration to chatbots, agents and document AI, I add practical AI to new and existing products, with guardrails so it stays useful, safe and affordable.

LLM integration, done right

Large language models wired into your website, app, CRM or internal tools: chat, summaries, drafting, classification and structured data extraction, built for production.

  • Secure by default API keys stay on a server-side proxy, never in the browser
  • Grounded answers trained on your own content, with sources where it matters
  • Tool & function calling AI that can look up orders, book slots or update records
  • Guardrails & cost limits moderation, rate limits and human approval for key actions
Works with
  • Claude
  • OpenAI GPT
  • Gemini
  • Open-source LLMs
  • Embeddings
  • Vector search
  • Speech-to-text
  • WhatsApp API
yourbusiness.com · AI assistant
Live demo on this site

AI Chatbots & Assistants

Website and WhatsApp assistants that answer FAQs, qualify leads and book appointments 24x7, with smooth hand-over to your team.

  • Website
  • WhatsApp
  • Human handoff

Chat With Your Documents (RAG)

Ask questions across PDFs, policies, manuals and product data. Answers come from your own knowledge base, not guesswork.

  • Embeddings
  • Vector DB
  • Citations

AI Agents & Workflow Automation

Multi-step agents that triage enquiries, update your CRM, draft replies and send follow-ups, with approval steps where you want them.

  • Tool use
  • CRM / ERP
  • Approvals

Document AI & Data Extraction

Pull clean, structured data out of invoices, forms, IDs and resumes, straight into your database or spreadsheets.

  • OCR
  • Structured output
  • Validation

AI Content Generation

Product descriptions, emails, social posts, SEO copy and reports in your brand voice, reviewed before they go out.

  • Brand voice
  • SEO
  • Bulk generation

Voice AI

Speech-to-text notes, call and meeting summaries, and voice-driven forms, like doctors dictating prescriptions.

  • Speech-to-text
  • Summaries
  • Dictation

AI Analytics & Insights

Ask your business data questions in plain English, get daily AI summaries on WhatsApp, and spot trends and forecasts early.

  • Natural language
  • Forecasts
  • Auto reports

Smart Search & Recommendations

Semantic search that understands what customers mean, plus personalised product and content recommendations.

  • Semantic search
  • Personalisation

Vision & Image AI

Read photos and screenshots, tag and moderate images, check documents, and generate visuals for marketing.

  • Image understanding
  • Moderation
  • Generation

Quick AI add-ons for your business

Small, focused AI features that plug into what you already use, ideal as a first AI project.

  • Website FAQ chatbot
  • WhatsApp AI auto-replies
  • Lead qualification & scoring
  • Meeting notes → tasks
  • Invoice & form data extraction
  • AI product descriptions
  • Review reply drafts
  • Daily WhatsApp business summary
  • Support ticket triage & tagging
  • Resume screening & shortlisting
  • Email drafting & smart replies
  • AI search for your website
Discuss an AI project
03 — Ready solutions

Business solutions I deliver

Customisable, deploy-ready platforms tailored to your workflow, branding and scale, built on the MERN stack with AI and automation where they add real value. Open one for the full details, or download its brochure.

AI Business Automation

Automate repetitive work: lead capture, approvals, document drafting, reports and smart replies.

Enquire

Logistics & Delivery Management

Orders, dispatch, rider assignment, delivery status, proof of delivery and route-wise reporting.

Enquire

Fitness Tracker Management

Gym members, plans, attendance, trainer schedules, workout & progress tracking and renewals.

Enquire

CRM + ERP Solutions

Unified sales, customers, operations, inventory and accounts in one role-based platform.

Enquire

AI Assistants & Inquiry Systems

Chatbots trained on your content plus inquiry inboxes that route and track every lead.

Enquire
Industries served
  • Transport
  • Healthcare
  • Education
  • Restaurants
  • Logistics
  • Retail
  • Fitness
  • Startups & SMEs

How I work

1

Discover

Understand goals, users and constraints. Define scope that's realistic.

2

Design

Wireframes, UI and data model — validated before a line of code.

3

Build

Iterative sprints with demos, clean code and automated checks.

4

Launch & Scale

Deploy, monitor and improve — with AI and analytics where they add value.

Want everything in one place?My professional profile covers my skills, services, every ready solution and how I work.
Download profile (PDF)
04 — About me

Code is how I solve, innovate & inspire

👋 I'm Arindam Sarkar, a passionate Full-Stack Developer and tech enthusiast dedicated to building innovative, scalable digital solutions. With a strong foundation in the MERN stack and modern web technologies, I craft applications that deliver exceptional user experiences and solve real-world problems.

Beyond custom development, I offer ready-to-deploy, customisable business solutions for cab booking, clinics, schools, restaurants, logistics, ERP, CRM and more, with AI added where it genuinely helps.

Coding is more than a career for me — it's a way to continuously learn and create impact. I'm always exploring new technologies, and always open to collaborating on exciting ideas or chatting about tech trends.

Frontend

React.js, Next.js, TailwindCSS, Material-UI

Backend

Node.js, Express.js, REST APIs

Database

MongoDB, MySQL, Firebase

Other

Role-based access, CI/CD, cloud deployment, AI integration

05 — Skills

Tools I master

React Next.js Tailwind
Node.js Express REST APIs
MongoDB MySQL Firebase
AI / LLMs CI/CD
  • Frontend
  • Backend
  • Data
  • AI & DevOps
06 — AI assistant

Meet my AI assistant

Ask anything about my work, stack or availability — or describe your project and get an instant scope with a suggested stack and roadmap.

AI Project ScoperDescribe your idea in a sentence or two

150+ projects shipped.
Yours could be next.

Mail me
07 — Contact

Let's build something great

Reach out on social media or send a message — I'll get back to you as soon as possible.

Thank you!I'll contact you soon.