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Hi, I'm Tannmay Daas

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With 12+ years of industry experience, I turn complex business requirements into clean, performant web and mobile applications — whether that's a scalable Laravel backend, a dynamic MERN Stack app, a cross-platform Flutter mobile app, or a bespoke ERP solution. I don't just write code; I build products that work.

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Years in IT
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Yrs Web Dev
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Companies Served
Tannmay Daas — Full Stack Developer
Tannmay Daas
Open to Freelance & Contract Work

Your Vision, Engineered to Perform

I'm Tannmay Daas, a Senior Full Stack Developer based in Kolkata with 12+ years in the IT industry — 5+ of which have been dedicated to building production-grade web and mobile applications. From architecting robust Laravel APIs to deploying MERN Stack front-ends and cross-platform Flutter apps, I deliver end-to-end solutions built to scale and easy to maintain.

I've shipped software across ERP platforms, enterprise tools, and client-facing products for companies spanning manufacturing, technology, and IT services. My approach is consistent: understand the real business need, build the right solution, and deliver it on schedule — no surprises.

  • 5+ Years delivering production web and mobile applications across multiple sectors
  • 12+ Years total IT experience spanning dev, systems & infrastructure
  • Laravel & MERN Stack specialist — REST APIs to real-time features
  • Flutter developer — cross-platform iOS & Android apps from a single codebase
  • CCNA Certified — infrastructure-aware development approach
  • ERP module design, API integration & third-party service connectivity
Location
Kolkata, India
Email
tanmay.das@hotmail.com
Phone
+91 9804349062
+91 9080585337
Availability
● Open to Work
Let's Collaborate

My Expertise

A production-tested stack built over 12+ years — covering the full development lifecycle from UI design to database architecture and cloud deployment.

🎨
HTML5 / CSS3
90%
JavaScript / jQuery
80%
🐘
PHP (Laravel / CodeIgniter)
92%
⚛️
MERN Stack (MongoDB, Express, React, Node)
75%
📱
Mobile App Development (Flutter)
75%
🗄️
MySQL
88%
🐘
PostgreSQL
80%
🍃
MongoDB
82%
💨
Tailwind CSS
85%
🅱️
Bootstrap
90%
🔌
REST API Development
85%
🌐
Hardware & Networking (CCNA)
80%
Laravel
CodeIgniter
PHP 8
MySQL
JavaScript
jQuery
Tailwind CSS
Bootstrap 5
HTML5
CSS3
REST APIs
CCNA
React.js
Node.js
Express.js
MongoDB

Work Experience

12+ years of delivering scalable, high-quality software across enterprise ERP, full-stack web development, mobile app development, and IT infrastructure — always on time, always production-ready.

Dec 2025 – June 2026
Sr. Developer
Sustech Engineering Pvt. Ltd.

Led full-stack development of enterprise ERP modules — owning end-to-end feature delivery from requirement scoping through testing to go-live. Maintained proactive technical support, ensuring platform stability and zero critical downtime across active deployments.

April 2023 – Nov 2025
Sr. Developer
Technojagat

Architected and shipped multiple ERP modules and RESTful APIs over a 2.5-year engagement — translating complex client specifications into maintainable, production-ready code. Sustained high platform stability and performance throughout the entire contract lifecycle.

Dec 2021 – March 2023
Developer & Designer
Aryanss IT Solutions

Delivered pixel-perfect, responsive interfaces paired with robust backend logic and optimized database schemas. Built clean, well-documented codebases that clients continued to scale confidently long after project handover.

Oct 2010 – Feb 2017
Asst. Manager — System Administrator
Aludecor Lamination Pvt. Ltd.

Oversaw IT infrastructure, software licensing, and hardware operations across multiple nationwide locations for a large-scale manufacturing enterprise. Managed network and wireless infrastructure, ensuring consistently high system availability and swift resolution of multi-site technical issues.

Services I Offer

End-to-end development services built around your business goals — not just your tech stack. From first wireframe to post-launch support, I own the entire journey.

01
🎨

Frontend Development

Fast, responsive, pixel-perfect UIs that convert visitors into clients. Built with React.js, HTML5, Tailwind CSS, and Bootstrap 5 — tested across all major browsers and screen sizes before a single line ships.

02
⚙️

Backend & API Development

Secure, high-performance backends and RESTful APIs engineered in Laravel, Node.js, and CodeIgniter — with clean architecture and optimized MySQL/MongoDB schemas built for long-term growth, not just the first release.

03
🏗️

ERP Module Development

Custom ERP modules built around your exact workflow — not the other way around. I run requirement workshops, own the full build cycle, and ensure your team can operate and scale the system from day one.

04
🔗

System Integration

Third-party APIs, payment gateways, SMS/email services, or legacy system bridges — I connect your stack cleanly, with proper error handling and fallback logic built in from the start, not bolted on later.

05
🛡️

Maintenance & Support

Code needs attention beyond launch day. I provide ongoing maintenance, performance tuning, security patches, and feature additions — so your application grows with your business instead of holding it back.

06
📋

Requirements Analysis

Great software starts with clear requirements. I run focused discovery sessions that map your business goals to a precise technical specification — reducing rework, preventing scope creep, and keeping delivery on budget.

07
📱

Mobile App Development

Cross-platform iOS & Android apps built with Flutter from a single codebase — sharing business logic and API integrations with your existing web stack for faster delivery and easier long-term maintenance.

Education & Certification

A strong academic foundation in IT, backed by industry certifications that inform every architecture and infrastructure decision I make.

🎓
August 2010
M.Sc. Information Technology
S.M.U. — Distance Education
📚
2007
Bachelor of Commerce (B.Com)
Calcutta University (C.U.)
🏅
Certified
CCNA — Cisco Certified
Network Associate · Cisco Systems

Ready to Build Something Great?

Whether you have a defined scope or just an early idea — let's talk. I'll give you an honest technical assessment and a clear path forward, no obligation.

📍
Location
Gardenreach, Kolkata – 700024
📱
Phone / WhatsApp
✉️
Email
🕐
Response Time
● Within 24 Hours

Why Clients Choose Me

12+ years of IT experience — I know what works and what doesn't
Full-stack ownership — from database schema to pixel-perfect UI
Milestone-based delivery — clear timelines, no surprises
Post-launch support — I'm invested in your product's long-term success
Laravel, MERN Stack & Flutter expertise — the right tool chosen for every job
Clear communication throughout — you're never left wondering about progress
Cross-platform mobile apps — one Flutter codebase for iOS & Android
Database fluency — MySQL, PostgreSQL & MongoDB, whichever fits your data model