Built for peak load
Bill cycles create sharp traffic spikes, so services were kept stateless and set to auto-scale on AWS — capacity when it’s needed, cost when it isn’t.
Work — Client
Overview
Services provided
The Challenge
The problems we set out to solve.
Research & Strategy
We listened first, then set a clear direction.
A focused round of research shaped a strategy the whole team could build against.
What we learned
How we responded
The Solution
Key Features
The moments that make it work.
Visual Showcase
A closer look at the product.
Technology
Engineered to scale, secure by design.
Results & Impact
What the work delivered.
Download and rating figures are public data from Google Play (KSEB, Dec 2025).
Project Team
The people behind it.
Client voice
In the client’s words.
“Faircode gave us an app our consumers actually trust — bills paid in under a minute, fewer counter queues and a team that owned every release.”
Developer notes
Notes from the engineering team.
The decisions and trade-offs behind a payments app built for state scale.
Native feel, one codebase
Flutter delivers a genuinely native experience on iOS and Android from a single codebase, so features ship once and stay consistent across platforms.
Payments that never drop
Idempotent transactions with safe retries mean a bill is never paid twice or lost — even if the network blinks mid-payment.
Consumer data, protected
Encryption in transit and at rest, least-privilege access and full audit trails — the baseline for handling millions of consumer accounts.
Works on weak networks
Graceful degradation and retry queues keep the core flows usable across low-connectivity regions, not just on office Wi-Fi.
Under a minute to pay
Cached account data and a trimmed Quick Pay flow were tuned together to hit — and hold — the sub-minute payment target.
StackFlutterNode.jsAWSREST APIsCI/CD
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