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Software engineering studio · Kolkata, India

We take products from MVP to production.

First Penny builds MVPs, APIs and integrations, and reusable frontend architecture with StencilJS, web components and microfrontends. We have built 13 SaaS products of our own, so we plan for onboarding, integrations and operations from the first sprint.

Live sites of products we built: aidial.si, fithabb.com, uplin.io · captured 28 Oct 2026
Based in
Kolkata, India · IST (UTC+5:30)
Own products
13 SaaS products designed and built in-house
Engagements
Fixed-price MVP · Dedicated developer · Support retainer
Client work
Kredent · Linksmind · Kred Studios · VT Capital
Contact
info@firstpenny.io
+91 86974 20170

What we deliver

The four kinds of work we do most. Mobile apps, cloud and DevOps, and WebRTC sit alongside them.

MVP launch and MVP-to-production

Scope and build a first version to a fixed price, or take an existing MVP and make it ready for paying users: tests, CI/CD, monitoring and the admin tools nobody demos.

  • Next.js
  • React
  • TypeScript
  • Auth
  • Billing
  • CI/CD

APIs and integrations

Design and build the APIs your product and partners depend on, and connect payment, messaging, voice and hardware providers.

  • WhatsApp Business API
  • Payment gateways
  • GST e-invoicing
  • Biometric devices

StencilJS, web components and microfrontends

Framework-agnostic component libraries and microfrontends that let several teams ship into one product without rewriting it.

  • StencilJS
  • Web Components
  • Module Federation

Reusable frontend architecture

Shared component packages and design-system integration, so new screens reuse tested parts instead of copying them.

  • Design systems
  • Component packages
  • Theming

All services · Domain expertise

Evidence

13 products we built ourselves

Pick the kind of engineering your project needs to see where we have already done it. The products are at different stages; each product page lists what it does today.

What clients say

From teams we have built websites, apps and APIs for.

“The team that supported us with the backend development of our website worked with us from scratch and helped bring the entire build to life. They were quick, clear, and reliable — executing everything we shared with precision and a solid understanding of what we needed. Communication was smooth, and they were easy to work with. Would definitely recommend them to anyone looking for a dependable backend partner.”

Dhrubajyoti GhoshSenior Manager, Kredent

“We found First Penny through their website and talk shows, and they've been incredible ever since. They listen deeply to your business plan, assign dedicated support, and deliver custom UI/UX exactly as needed. Their team communicates daily, handles changes promptly, and meets tight deadlines without compromising quality. Special thanks to Rasimul, Aditi, and Mr. Sunny for their outstanding support and professionalism. We’re so happy with our website that we’ve already entrusted them with our upcoming mobile app. Highly recommended for anyone looking for smart, seamless, and customer-focused software solutions.”

Jyotirmoy MondalFounder, Linksmind

“First Penny Software Pvt. Ltd helped us set up a database API that made it easy for our team to access the data we needed for our research. The API worked smoothly and saved us a significant amount of time. Great work, and a very reliable service!”

MD Samshad AlamQuant Researcher, VT Capital

Client projects:LinksmindKred StudiosPortfolio

Ways to work with us

How we work
  • Fixed-price MVP

    For founders who need a working product in front of users.

  • Dedicated developer

    A full-time engineer on your product, managed by us.

  • Support retainer

    For live products that need steady maintenance and new features.

Tell us what you are building.

Send a short description of the product, where it is today and what you need next. We reply with questions or a time to talk.