Atanu Biswas
Senior developer & consultant, building |
15+ years building PHP and Laravel systems for governments, companies and my own products. Two ways to work with me: hire me for your team, or bring me your business problem and I'll build the simplest thing that fixes it.
- 15+ years experience
- Kolkata · IST (UTC+5:30)
- Open to remote roles
- Freelance: Available
About
Hi, I’m Atanu.
I'm a senior PHP / Laravel developer with 15+ years of experience — government platforms, real-time systems, my own SaaS products — and alongside the day job I help small businesses and individuals turn their ideas into simple, practical digital solutions that bring real results.
Backend developer by trade, small-business problem-solver by choice
- Website
- atanubiswas.com
- City
- Kolkata, INDIA
- contact@atanubiswas.com
- Availability
- Open to remote senior roles
- Freelance
- Available
Either way you get the same person: someone who builds systems that stay fast, secure and maintainable, and explains them without jargon.
If you’d like to learn more about my technical background or access my details offline, you can download my CV or Resume. They include my experience, projects, and the technologies I work with. Jump to the download.
Stack
What I build with
The tools I reach for every day, and how I use AI agents to get more out of them.
- 15+
- years shipping PHP & Laravel
- 8,000+
- businesses served by platforms I built
- 3 → 100+
- engineering team sizes I have worked in
- 40%
- database query time cut through SQL & index work
Backend & Web
- PHP
- Laravel
- CodeIgniter
- Eloquent ORM
- PHPUnit
- REST APIs
- JavaScript
- jQuery
- HTML5
- CSS
- WordPress
AI Engineering
- OpenAI API
- LlamaIndex
- LangChain
- RAG / knowledge bases
- AI agents
- MCP
- Claude Code
- Codex
- Gemini CLI
- Ollama
DevOps & Infrastructure
- Linux / Debian
- AWS (EC2, Lambda, S3, SES, SNS, CloudWatch)
- DigitalOcean / VPS
- Docker
- Nginx / Apache
- CI/CD
- Jenkins
- Cloudflare
- SSL
Databases & Search
- MySQL / MariaDB
- PostgreSQL
- Redis
- Elasticsearch
- pgvector
- Firebase
Languages & Tools
- Git
- GitHub
- GitLab
- PhpStorm
- Bash
- Python
- Node.js
Security & Practices
- OWASP
- OWASP ZAP
- SQL injection / XSS prevention
- Server hardening
- Performance & SQL optimisation
- Code review
How I use AI agents
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AI-assisted software engineering
Claude Code, Codex and Gemini CLI for code generation, refactoring, debugging, architecture analysis, documentation and release automation.
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Agent & browser automation
An isolated browser agent over MCP that takes natural-language instructions for authenticated work — email processing, web research, social operations.
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AI in development operations
Agents connected to GitLab over MCP that read, create and manage issues and automate code analysis and review.
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Automated code quality
AI-assisted local and server-side review so a team continuously checks security, maintainability and project conventions.
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Intelligent research & scraping
AI-assisted workflows that discover, extract, analyse and structure information from complex websites.
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AI application development
OpenAI APIs, LlamaIndex and LangChain-style frameworks integrated into web applications, automation systems and business tools.
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AI-powered products
Knowledge-base chatbots, recommendation systems and intelligent business automation, shipped and running.
Experience
Where I have done it
15+ years of it, and who I did it for.
-
Senior Laravel Developer
2014 — Present
NetTrackers · Kolkata, India
- Lead development and maintenance of PHP applications on Laravel, MySQL and PostgreSQL, delivering government and enterprise platforms serving 8,000+ businesses in teams of 12 to 100+.
- Architect and consume REST APIs — streaming APIs, Google APIs and payment gateways — sustaining 40+ requests per second in production.
- Cut database query time by 40% through SQL and index optimisation, query refactoring and profiling across core modules.
- Run production deployment across three hosting environments and six AWS services (EC2, Lambda, S3, SES, SNS, CloudWatch), with Linux hardening and SSL.
- Mentor 14 developers and review 8–12 pull requests a day, raising security and performance standards across project teams.
- Handle security and incident response — SQL injection, XSS, file-upload flaws, brute force, malware and backdoors — with OWASP ZAP and manual review.
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PHP Web Developer
2013 — 2014
Techbridge · Kolkata, India
- Delivered ten client projects in custom PHP and MySQL, including two large platforms for clients in Thailand.
- Debugged and extended existing client websites and internal tools.
- Shipped responsive, SEO-optimised sites and six custom WordPress builds alongside designers and project managers.
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Freelance Web Developer
2011 — 2013
Self-employed · Kolkata, India
- Built eight dynamic websites for local clients and a startup team using PHP, MySQL and JavaScript.
- Owned delivery end to end: UI implementation, database design, server configuration and deployment.
- Developed custom WordPress themes and plugins, and recovered compromised sites through malware analysis, code review and server hardening.
Selected engagements
Enterprise Northern Ireland
Team of 12Northern Ireland Government, via NetTrackers
Lead Developer
Business networking platform serving 8,000+ businesses across appointments, events, opportunities and guides, with an AI recommendation engine.
Laravel, PHP, MySQL, pgvector, OpenAI · AWS EC2, Lambda, S3, SES, SNS
R2P Denmark — bus tracking
Team of 100+Danish Government, via NetTrackers
Senior PHP Developer
Real-time telematics across a fleet of about 80 buses — speed, braking, passenger count and stop duration — streamed for live rerouting through Movia and a map-tile server.
Laravel, PHP, MySQL, Python, Elasticsearch, Twilio · AWS EC2, SES, SNS
DriveBird
Team of 1Self-owned, solo build
Founder · Lead Developer · DevOps
Multi-product SaaS platform: 16 free and 5 professional business tools — AI chatbot, issue and project management, centralised billing, knowledge-base workflows, operations automation.
Laravel, PHP, MySQL, JavaScript, Redis · DigitalOcean, Cloudflare, S3/SES · OpenAI API, MCP
Deal84 e-commerce (SaaS)
Team of 3Self-owned, team of 3
Lead Developer · DevOps
Rentable e-commerce platform with lifetime maintenance, including a free price tracker across Amazon, Flipkart and AJio. Now part of DriveBird, as E-commerce and PriceTracker.
CodeIgniter, PHP, MySQL, jQuery · DigitalOcean, S3, Cloudflare, SSL
Education
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Bachelor of Science (B.Sc.)
Bangabasi College, Calcutta University · 2001–2004
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Higher Secondary (10+2)
M.K.K.G.C. Institute, West Bengal Council · 2001
Languages
- English — Professional
- Hindi — Fluent
- Bengali — Native
Work
Recent Projects
My recent work focuses on solving real business problems and delivering measurable results.
Issue Tracker (Team & Project Management Tool)
I built Issue Tracker as a lightweight remote team management system to simplify issue tracking, team collaboration, and project cost monitoring — without the complexity of traditional tools. Know more about Issue Tracker
- Problem
- Remote teams struggle to track tasks, manage communication, and monitor time/billing in one place
- Solution
- Developed a project-based issue tracking system with task management, time tracking, billing calculation, automatic worker payouts and real-time notifications
- Result
- Improved team coordination, transparent billing, and faster issue resolution with minimal setup and cost
MeBot (AI Website Chatbot & Lead Capture)
I built MeBot, a one-line AI chatbot for business websites that answers visitor questions 24/7 from the business’s approved knowledge and captures leads while the owner is busy or offline. Know more about MeBot
- Problem
- Small businesses lose interested visitors whose questions arrive after hours and never get an answer
- Solution
- Built an embeddable chatbot that learns the business through AI-assisted knowledge suggestions, answers instantly, and collects names, emails and phone numbers along with the conversation
- Result
- Every visitor gets an answer and every interested one becomes a lead in the owner’s inbox — starting free with 10 replies a day
Amazon Seller Performance Intelligence (Automation)
I built this automation system to help Amazon sellers monitor product performance, identify underperforming listings, and uncover new product opportunities through data-driven analysis — without manually reviewing Seller Central reports every day.
- Problem
- Amazon sellers often spend significant time manually reviewing performance metrics across multiple products, making it difficult to quickly identify weak listings, stock risks, or emerging product opportunities
- Solution
- Developed an automated data extraction and reporting system that collects key Amazon seller portal metrics including sales trends, click-through rates, purchase behavior, reviews, inventory levels, and product performance, then processes and updates structured CSV reports for analysis
- Result
- Enabled faster business decisions, improved focus on high-impact products, early detection of underperforming listings, and streamlined product opportunity discovery through automated performance tracking
DriveBird E-commerce & PriceTracker (E-commerce & Price Tracking)
I built DriveBird PriceTracker as an intelligent price tracking and deal discovery platform that helps users monitor products, track price history, and get notified when prices drop across multiple e-commerce stores. Know more about PriceTracker
- Problem
- Online shoppers waste time manually checking prices and often miss the best deals
- Solution
- Developed a system to track product prices, analyze price history, and send automated alerts when prices drop
- Result
- Helped users save time and money by making smarter purchase decisions with real-time deal insights
- Expansion
- Enabled merchants to list and promote their products, creating additional sales opportunities
Daybook (Online Booking with Deposits)
I built Daybook, a booking page for appointment-based businesses that collects deposits straight into the business’s own payment account — DriveBird takes no cut. Know more about Daybook
- Problem
- No-shows cost appointment businesses money, and most booking links give one side all the power and the other side an email
- Solution
- Built booking pages where both sides can cancel or move an appointment fairly, deposits go to the business’s own account, and every appointment keeps a plain-language history either side can export
- Result
- Fewer no-shows, money paid upfront to the business, and one shared record both sides trust — with 20 free bookings a day
ENI (AI-Powered Business Assistant)
I developed ENI, an AI-powered assistant that interacts with business data to answer user queries, automate workflows, and streamline data-driven operations within the platform.
- Problem
- Users struggled to manually search data and complete repetitive tasks within the platform
- Solution
- Built an AI-driven system using Python that understands query intent, retrieves relevant data, and automates actions like form filling based on user profiles
- Result
- Reduced manual effort, improved response time, and enhanced user productivity through intelligent automation
Asset Hosting (CDN File Storage & Delivery)
I built DriveBird Assets, a file hosting service that lets websites and applications upload images, documents, audio and video through a REST API or a dashboard and serve them from a global CDN. Know more about Assets
- Problem
- Web hosting charges a premium per gigabyte, and accepting file uploads is one of the riskiest things a website does
- Solution
- Developed an API-first asset service: one upload call returns the final CDN URL, 38 file types up to 200 MB each, and named buckets so one account can serve several sites without their files mixing
- Result
- Lighter, safer websites whose files load fast everywhere — year-long immutable CDN caching, unlimited downloads, billed by the day from a prepaid wallet
Fintrix (AI Paper Trading of NSE Stocks)
I built Fintrix, an AI that paper-trades up to 50 NSE stocks with pretend money and explains every decision — so a strategy’s real record is visible before a single rupee is risked. Know more about Fintrix
- Problem
- Trading tips rarely show their losing trades, so it is hard to judge any strategy honestly
- Solution
- Built an AI that checks a watchlist every 15 minutes in market hours, paper-buys with a target, a stop-loss and a size, sells when the trade is done, and records why
- Result
- An honest record: every trade counts estimated brokerage, taxes and fees, and is set against NIFTY 50 over the same days
WhatsApp AI Assistant (Conversational Automation System)
I developed a WhatsApp-based AI assistant that enables users to interact with business systems through simple messaging, eliminating the need for traditional interfaces.
- Problem
- Users prefer quick communication channels but lack direct access to business data and services via messaging platforms
- Solution
- Built a webhook-driven system that processes WhatsApp messages, understands user intent using AI, and retrieves or updates data from internal systems
- Result
- Enabled real-time responses, simplified user interaction, and improved engagement through a familiar messaging interface
- Automation
- Integrated subscription management (subscribe/unsubscribe) and event-based messaging workflows
Vaishnava Matrimony (Community Matchmaking Platform)
I developed a dedicated matrimony platform tailored for the Vaishnava community, enabling users to find compatible matches through a structured and easy-to-use digital system. Know more about Vaishnava Matrimony
- Problem
- Community members lacked a focused and reliable platform to find suitable matrimonial matches
- Solution
- Built a full-featured matrimony system with profile creation, search filters, match discovery, and secure communication features
- Result
- Simplified the matchmaking process, improved user experience, and enabled efficient partner discovery within the community
Clinic & Pharmacy Management (Multi-Branch Medical Software)
I developed a centralized clinic management system for a therapy business operating across multiple locations — and the same multi-branch design now runs DriveBird Pharma, software for medical shops and chemists. Know more about Pharma
- Problem
- Managing patients, staff, stock and billing across several branches is complex — and one expired medicine sold at a busy counter costs a licence and a customer’s health
- Solution
- Built multi-branch software with patient records and treatment history, batch-and-expiry stock that blocks expired medicine at billing, fast GST billing, dues tracking, staff logins scoped to each job, and SMS and email notifications
- Result
- Owners see every branch from one account, counters bill faster, records stay accurate, and expired stock can no longer reach a customer
Docent — AI Knowledge Base (Document Intelligence System)
I developed Docent, an AI knowledge base that lets a business ask its own documents, websites and databases in plain words — every answer cites the documents it came from, and each person sees only what they are allowed to. Know more about Docent
- Problem
- Business information stored in documents is difficult to search, access, and utilize efficiently
- Solution
- Built a Python-based system that reads PDFs, Office files, spreadsheets, web pages, S3 buckets, databases and photographed paper pages, keeps them searchable, and answers questions through an AI chat interface
- Result
- Static documents became answers a team can trust — every reply shows its sources, and access is controlled collection by collection
Deskbell — AI Support System (Email Automation & Ticketing)
I developed Deskbell, an AI-powered support desk: one shared inbox for every customer email, and an AI that answers only from the business’s published help articles, cites them, and hands over to a person when it is not sure. Know more about Deskbell
- Problem
- Handling support emails manually is time-consuming and leads to delayed responses and inconsistent support quality
- Solution
- Built a support inbox that keeps every reply in the right conversation, filters spam, creates tickets, and drafts AI answers only from published articles — prices, dates and rules must match word for word, or it hands over
- Result
- Faster, consistent support customers can trust — sources under every answer, a person always one click away, and billing only for proven answers
Want to automate your business with AI or custom systems?
I build intelligent systems that help businesses automate operations, manage data, and handle customer interactions — so you can save time, reduce manual work, and scale faster.
How I work
How I Help Your Business
I focus on solving real business problems using simple, practical digital solutions.
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Understand Your Needs: I take time to understand your business and suggest the simplest solution.
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Build Practical Solutions: Websites and tools that are easy to use and actually help your business grow.
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Clear Communication: No technical confusion — I explain everything in simple terms.
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On-Time Delivery: Work is completed on time with proper structure and reliability.
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Long-Term Support: I stay available for future updates, fixes, and improvements.
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1
Your Business Has a Problem
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2
We Agree on a Solution
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3
I Build & Implement the Fix
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4
Your Business Grows & Thrives
Need a website or automation for your business?
I help small businesses build simple websites, sell products online, and automate daily tasks to save time and get more customers.
Services
What I Work With
I use modern tools and proven methods to build reliable, scalable, and secure solutions.
- Website Development
- E-commerce Systems
- API Integrations
- Automation Tools
- Performance Optimization
- Security & Protection
- Server & Hosting Setup
- Monitoring & Maintenance
- Lead Generation Tools
- Analytics & Tracking
- Workflow Automation
- AI-based Features
Outcomes
What I Can Do For You
I build simple systems that help you get more customers, save time, and run your business smoothly.
- Get More Customer Enquiries
- Turn Visitors into Leads
- Sell Products Online Easily
- Build Your Online Presence
- Make Your Website Fast & Secure
- Fix Website Issues Quickly
- Manage Hosting Without Hassle
- Keep Your Website Running Smoothly
- Automate Repetitive Tasks
- Capture & Track Leads Automatically
- Understand Visitor Behavior
- Add Smart AI Features
Services
How I Can Help Your Business
I build simple websites and automation solutions that help businesses get more customers, save time, and run more efficiently.
Business Website Development
Modern, fast websites that build trust and generate customer inquiries.
WhatsApp Automation
Automate customer replies, follow-ups, and engagement to save time and increase conversions.
Data & Competitor Insights
Collect and analyze useful data to understand your market and competitors better.
Branding & Creative Assets
Simple logos and visuals to give your business a professional identity.
WordPress Fix & Security
Remove malware, fix issues, and secure your website from future attacks.
SEO & Visibility
Improve your website visibility so more customers can find your business online.
Deployment & Setup
Smooth setup from development to live website with proper configuration.
Website Security
Protect your website, payment systems, and customer data from threats.
Hosting & Email Setup
Fast, secure hosting and professional email setup for your business.
Pricing
Simple pricing, no confusion
Prices depend on what your business actually needs. These are honest starting points, not a quote — tell me the requirement and I’ll suggest the simplest option.
Business Website
Corporate, multi-page, or CMS
₹15k / $190
starting from
Products
Software As A Service (SaaS)
Ready-made software I built and run on DriveBird. Start free, then pay a small fee per use or for 30 days at a time — nothing to install or maintain.
MeBot
· AI website chatbotAnswers your website visitors around the clock from what you teach it, and emails you every lead it captures.
Daybook
· Online booking with depositsCustomers book a slot on your own page and pay the deposit straight into your account — DriveBird never takes a cut.
Deskbell
· AI customer supportOne inbox for every customer email, with an AI that answers only from your own help articles and hands over to a person when it cannot.
E-Commerce
· Your own online store Early accessOpen a store for your products in minutes and pay by the day while it is open — no subscription, no lock-in.
Built & running
Tools & products
Free utilities for everyone and the small SaaS products behind them — all on DriveBird, the platform I founded, built and keep online. Every card opens on drivebird.com.
Password Generator
Generate secure password for your online accounts.
Password Checker
Check if your secret password is actually known to the world!
EMI Calculator
Calculate EMI for home loan, car loan and personal loan!
URL Shortener
Shorten your long / ugly links and simplify your digital life!
Calorie Calculator
Estimate the number of calories you need to consume per day!
QR Code Generator
Simply put your desired information and get a high-quality QR code ready!
Text Encryption Decryption
Protect your sensitive text with password-protected encryption tool.
Issue Tracker
Having complications with your employee? Try Issue Tracker!
Public Chat
Chat and have fun with multiple website's users.
Anonymous Chat
Anonymously chat with other website's users. No login required.
Price Drop Alert
Track Amazon, Flipkart & Myntra prices — a free email alert the moment they drop.
Automation
Automation Tools
Need a custom automation? I can build tools based on your workflow.
- WhatsApp Auto Reply
- Lead Capture Forms
- Email Notifications
- Customer Follow-ups
- Data Scraping Tools
- Price Monitoring Systems
- Report Generation
- Task Automation
- AI Chatbot Integration
- Workflow Automation
- Analytics Tracking Setup
- Custom Business Tools
Documents
Resume & CV
Two versions of the same story — take whichever one fits. Both download as PDF.
Resume — short version
A focused 2-page summary of my work experience, key results and the core stack I build with. Best if you want the essentials in under a minute rather than the full history.
CV — the full detail
The complete profile: full technical skill set, project history and my AI & automation work from 15+ years of building software. Best if you want the depth behind the summary.
Contact
Let’s talk
Hiring for a senior PHP / Laravel role, or need a website, an online store or some automation for your business? Either way, tell me what you have in mind — I usually reply within a few hours.
Location
Vill: Gopinathpur, PO: Moukhali PS: Magrahat, 24 PGS (S), Kolkata, Baruipur, West Bengal - 743610
Call / WhatsApp
AI Assistant