Cevrynt engineering case studies: Selected work.

What we built, the problem it solved and the stack — for a POS company, a UK EdTech company and a UK home-services company.

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01Case studies

Problem, what we built, stack.

What the client needed, what we built and the stack.

Megapos Ltd

Stripe Terminal Tap to Pay kiosk

Problem: Megapos, a point-of-sale company, needed in-person card payments inside a kiosk app whose interface is a web app, while Stripe Terminal Tap to Pay runs natively on the device.
What we built: A Flutter WebView kiosk with a Node/Express backend and a native Kotlin bridge to Stripe Terminal Tap to Pay. The PaymentIntent and its client secret pass securely from the web layer to Flutter to Kotlin, so the payment is collected natively without exposing keys in the web app.
Stack: Flutter
Kotlin
Stripe Terminal
Tap to Pay
Node.js
Express

UK EdTech company

Online education platform

Problem: An education company needed a single platform for video lessons, student progress and payments, with an admin side for its own team.
What we built: A Laravel and Redis platform with authentication, video lessons, progress tracking, payments and an admin dashboard.
Stack: Laravel
PHP
Redis

UK home-services company

Quote pricing engine

Problem: A home-services company needed default prices for products and add-ons that staff could override per item, while always seeing which price is actually in effect.
What we built: A React/Inertia admin with default and override pricing rules for products and add-ons. Each line shows the default, the override and the effective value, with mobile-friendly inline editing.
Stack: React
Inertia.js

02Clients

Teams we have built for.

03Track record

Across the team’s work.

You work directly with Arindam Pradhan, who has built production software since 2018, and four senior engineers with six or more years each. We work remotely from India with overlap into US and European hours. Before Cevrynt, the same team delivered client work as GreenBorn Infotech.

300+: projects delivered
50+: CRM deployments
90,000+: leads a day handled by systems we built
9GB+: production databases
~$800 → $150: monthly cloud costs, cut for a client

Delivered by the team, including work as GreenBorn Infotech.

04Services

Work with us.

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Have a similar problem?

Tell us what you are building or fixing. We will say plainly whether it is a fit.

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