Fintech Software Development
Financial software where every rounding error is a real customer complaint.
Cryptr
Trading Platform Delivered
WinPay
Payment Solution Delivered
The Problem
Why Fintech Teams Struggle to Ship
Most Fintech engineering challenges aren't about missing features — they're about fragmented systems, technical debt, and delivery processes that slow teams down.
How CodeAir Solves It
Exhaustive Financial Test Coverage, ACID-Compliant Transaction Architecture, Government API Integration. We design systems around your domain constraints, not around ours.
Zero Tolerance for Calculation Errors: Rounding, currency conversion, and interest calculation bugs directly cost customers real money and expose the business to regulatory and legal risk.
Real-Time Data Under Load: Trading and payment platforms need live price feeds and balance updates that stay accurate and fast even during high-volume trading periods.
Regulatory Compliance Integration: Indian fintech increasingly requires direct integration with government systems — GST, Udyam, KYC verification — which demand careful API contract handling.
Our Approach
From First Call to Shipped Software in 3 Steps
Identify Core Challenges
We map your Fintech domain constraints — compliance, scale, integrations — and prioritise the engineering work that matters most.
Build Iteratively
We ship in governed sprints with weekly demos, so you always see what you're getting before the full build is complete.
Scale with Confidence
Every system we deliver is built for growth — clean architecture, documented APIs, and runbooks your team can own.
Ready to Build Your Fintech Platform?
Tell us what you're building and we'll scope it honestly — no commitment required.
Capabilities
What We Build for Fintech
Custom Software Engineering
End-to-end Fintech platform development from architecture to deployment.
Compliance & Security
Built-in regulatory compliance, data encryption, and security audit readiness.
Performance Optimisation
Load-tested systems designed to handle traffic spikes without latency degradation.
Team Augmentation
Senior Fintech engineers embedded in your existing team within 7 days.
Rapid Prototyping
Functional MVPs in 4–8 weeks, validated with real users before full investment.
Legacy Modernisation
Migrate and modernise legacy systems with zero downtime using our phased approach.
Our Approach
How We Deliver Fintech Software
Fintech is unforgiving of sloppy engineering in a way most software isn't — a rounding bug in a normal app is an annoyance, in a payment or trading platform it's a compliance incident and a customer's real money. We've built a complete crypto trading platform (Cryptr) with WebSocket price feeds and order execution, a digital payments platform (WinPay), and an AI-assisted business tax filing tool (TaxDraw) — each demanding exhaustive test coverage on financial calculation logic.
Our fintech builds treat transactional integrity as the top priority: PostgreSQL for ACID guarantees on money movement, idempotency keys on payment operations so a network retry never double-charges a customer, and reconciliation jobs that catch discrepancies between our ledger and payment processor records automatically rather than during a monthly audit.
We also integrate directly with government compliance APIs — GST and Udyam registration APIs for our 1Mitra business platform — because fintech in India increasingly means interfacing with regulatory infrastructure, not just moving money.
Ideal For
Built For Teams Like Yours
Engagement Models
Three Engagement Models. One Delivery Standard.
Team Extension
Best for: Scaling fast
We embed senior engineers directly into your existing team. You keep full control of roadmap and process.
Dedicated Pod
Best for: Full product builds
A self-contained squad — engineers, QA, and a tech lead — running your project end-to-end with weekly check-ins.
Project Sprint
Best for: Specific deliverables
Fixed scope, fixed timeline, fixed cost. Ideal for MVPs, integrations, and well-defined engineering goals.
Why CodeAir
Why Choose CodeAir?
Domain Experience
Engineers with hands-on Fintech project experience — not just generalists learning on your budget.
No Black-Box Delivery
Weekly demos, shared Notion boards, and full access to the codebase at every stage.
Architecture-First
We plan for scale from day one. No quick hacks that create technical debt.
Honest Scoping
We tell you what's achievable in your budget, and what's not — before we start, not after.
Quality Enforcement
Code reviews, automated testing, and CI pipelines are non-negotiable on every engagement.
IP Always Yours
You own the code, credentials, and infrastructure. We hand over everything at project close.
Case Studies
Work We've Shipped
2022–PRES
EXCHANGE-GRADE Professional Trading PlatformCryptR — Complete Trading Solution
Built a comprehensive cryptocurrency trading platform with real-time order books, candlestick charting, multi-currency wallets, P2P trading, staking, and advanced order types — inspired by Binance-grade functionality.
2017
B2B NETWORK Retailer Recharge PlatformWinPay — Digital Payment Solution
Built a B2B digital payment and recharge platform with CodeIgniter backend, native Kotlin Android app, and Firebase-powered push notifications — serving retailer networks for mobile/DTH recharges.
2017
AUTOMATED Tax Filing SimplifiedTaxDraw — Business & Tax Filing
Built a comprehensive tax filing and business services platform with Laravel API backend, React frontend, and automated form generation for GST, ITR, and business registration workflows.
2021
AI-DRIVEN Automated SMB Compliance1Mitra — AI Business Co-Founder
Built an AI-powered business co-founder platform for Indian SMBs — automating GST registration, Udyam certification, invoice generation, and business compliance through conversational AI workflows.
FAQ
Common Questions About Fintech Development
Timelines depend on scope, but a focused Fintech MVP typically takes 8–14 weeks. Full platform builds with integrations range from 3–9 months. We always scope before we start.
Both. We work with early-stage founders who need an MVP, and with Series B+ companies expanding their engineering capacity. The engagement model scales to fit.
We design systems with compliance in mind from the architecture phase — not as an afterthought. For Fintech, we routinely handle GDPR, SOC 2, and domain-specific regulatory requirements.
CI pipelines run on every PR, unit tests are a delivery requirement, and we do internal code reviews before each sprint demo. Quality is baked in, not bolted on.
Yes. We frequently take over projects from other vendors or internal teams. We start with a code audit, document what exists, and create a clear plan forward.
Have a Fintech Project in Mind?
Tell us your requirements and we'll give you an honest assessment of scope, timeline, and cost. No sales pitch — just straight answers.