We build software that moves the numbers.
Web platforms, mobile apps, AI systems and blockchain products — designed, engineered and shipped by the same small team that scoped them.
The stack behind every project we ship
- React
- Next.js
- TypeScript
- Tailwind CSS
- Vue.js
- Redux
- Node.js
- Python
- Django
- FastAPI
- GraphQL
- REST APIs
- OpenAI API
- LangChain
- PyTorch
- TensorFlow
- Hugging Face
- Pinecone
- AWS
- Google Cloud
- Azure
- Vercel
- Netlify
- React Native
- Flutter
- Swift
- Kotlin
- Firebase
- Solidity
- Hardhat
- Ethereum
- Polygon
- IPFS
- PostgreSQL
- MongoDB
- MySQL
- Redis
- Supabase
- Prisma
- Docker
- Kubernetes
- GitHub Actions
- Terraform
- Sentry
Eight practices under one roof — so the people who design your product are the people who ship it, secure it and market it.
A selection of recent engagements — the constraint we were handed, what we built, and what changed afterwards.
E-commerce Platform for Fashion Retail
Web Development • Fashion Retail
Client needed a high-converting online store to replace their outdated WordPress site that was suffering from slow load times, poor mobile experience, and declining sales.
- Increase in online sales
- 340%
- Page load time, from 6.2s
- 1.8s
- React
- Node.js
- Express
- MongoDB
AI Customer Support Bot
AI & Machine Learning • E-commerce
Growing e-commerce brand receiving 2,000+ support tickets daily with an average response time of 48 hours. Customer satisfaction was dropping and support costs were escalating rapidly.
- Reduction in support tickets
- 70%
- Response time, from 48hrs
- 30 sec
- Python
- OpenAI API
- LangChain
- FastAPI
Enterprise Logistics Dashboard
Web Development • Logistics & Supply Chain
Operations team managing 500+ daily shipments using spreadsheets and manual processes, causing frequent delays, data entry errors, and lack of real-time visibility across the supply chain.
- Reduction in manual processes
- 60%
- System uptime
- 99.9%
- Next.js
- TypeScript
- PostgreSQL
- Prisma
The companies whose products we build, run and grow — across retail, healthcare, construction and events.
We pick the stack per problem, not per habit. Hover a domain to see what we actually build with.
Frontend
Typed, component-driven interfaces built on the frameworks that ship — and that other teams can pick up.
React
Next.js
TypeScript
Tailwind CSS
Vue.js- Redux
Frontend
- React
- Next.js
- TypeScript
- Tailwind CSS
- Vue.js
- Redux
Backend
Node.js
Python
Django
FastAPI
GraphQL
REST APIs
AI & ML
- OpenAI API
- LangChain
- PyTorch
- TensorFlow
- Hugging Face
- Pinecone
Cloud
AWS
Google Cloud
Azure
Vercel
Netlify
Mobile
React Native
Flutter
Swift
Kotlin
Firebase
Blockchain
Solidity
Hardhat
Ethereum
Polygon- IPFS
Data
- PostgreSQL
- MongoDB
- MySQL
- Redis
- Supabase
- Prisma
DevOps
Docker
Kubernetes- GitHub Actions
- Terraform
- Sentry
Four stages, weekly progress and a live staging environment throughout. You are involved at every step — no status theatre.
- 01
Discovery & Strategy
We dive deep into your business goals, target audience, and project requirements. Through detailed discussions, we craft a clear roadmap.
- Requirements gathering
- Market research
- Project scope definition
- Timeline & budget planning
- 02
Design & Prototype
Our designers create wireframes and interactive prototypes. You see exactly what you are getting before a single line of code is written.
- UI/UX design
- Interactive mockups
- Design system creation
- Feedback & iterations
- 03
Development & Testing
Our developers bring designs to life using modern tech stacks. With agile sprints, regular updates, and rigorous testing at every step.
- Clean, typed code
- Regular sprint updates
- Automated testing
- Quality assurance
- 04
Launch & Support
Smooth deployment to production with zero downtime. Post-launch, we provide dedicated support and continuous improvements.
- Deployment setup
- Performance optimisation
- Training & documentation
- 3 months free support
Domain constraints — compliance, payments, real-time data — shape the architecture. Knowing them in advance is most of the job.
Modern tech expertise
Latest frameworks, clean code, and battle-tested architecture. React, Next.js, Node, Python, Blockchain — we speak modern fluently.
Competitive pricing
Transparent pricing, no hidden costs and flexible packages — quoted against scope, not against how the project is going.
Fast delivery
Your project is our priority. Lean team, agile sprints, no committees. We move fast without compromising quality.
Dedicated support
Talk to the developers building your project. We respond fast because your success is our growth.
Zan Services is a digital engineering company headquartered in Kolkata, with offices in Dubai and a registered US entity, Zan Services LLC, in Sacramento, California. We build web platforms, mobile apps, AI systems and blockchain products.
We are small on purpose. The people who scope your project are the people who build it, you talk to them directly, and you get weekly progress and a live staging environment rather than a status report.
- Headquarters
- Kolkata, India
- Offices
- Kolkata · Dubai · Sacramento
- Engagements
- Fixed scope & retainer
- Support
- 3 months post-launch
Zan Services is a full-service IT company that delivers web development, mobile app development, and digital marketing solutions for businesses of all sizes. Founded in Kolkata, we have helped over 150 clients across industries transform their digital presence. Our team combines technical expertise with strategic thinking to build products that drive measurable growth. Whether you need a high-performance website, a cross-platform mobile app, or a data-driven marketing campaign, we handle the entire lifecycle from planning through launch and ongoing optimization.
Tell us the shape of the problem. We reply within 24 hours with an honest view of scope, timeline and cost.
Kolkata • Replies within 24 hours