Fintech Backend Development Services for Your Business
A fintech software development company builds the parts of a financial product where mistakes cost money. Omeiro engineers double-entry ledgers, order-book matching engines, WebSocket price feeds and risk checks, designed for low-latency transactions.
How fintech backend development works, step by step
A made-up example of one run, from start to finish. Each step is logged so you can see what happened.
- Systems are mapped
Which data moves where, and when.
- Connections are built
With retries for when a service is down.
- Tested with sample data
Before any real records are touched.
- Handed over with notes
Code and docs in your own repository.
Sample Made-up names, data and steps to show how a run is logged. Your steps, tools and rules follow your business.
What you get with fintech backend development
Ultra-low latency transactional systems. Real-time matching order books, double-entry immutable ledgers, WebSocket pricing streams, and sub-millisecond execution.
Basic Package
Double-entry ledger service with API and tests. 21-day delivery, 1 round + 30-day fixes.
Standard Package
Order-book matching engine; WebSocket price feed, source; docs. 40-day delivery, 1 round + 30-day fixes.
Premium Package
Trading core with risk checks, audit trail, load testing, 60 days support. 60-day delivery, 1 round + 60-day fixes.
Clear brief first
We confirm what you need before work starts, so the scope is clear on both sides.
Revisions listed
Each package shows its revision rounds. A round is one list of changes sent together.
Yours once paid
Copyright of the final work passes to you once the order is paid in full.
Third-party tools, API usage and hosting are billed to your own accounts, so the setup stays with your business.
How our fintech backend development works
Specify the rules
We write down accounts, order types and what must never happen, like negative balances.
Build the core
The ledger or matching engine is built with tests around every rule.
Stream and expose
APIs and price feeds are added so clients can connect.
Stress test
Where included, we load test the engine and review the audit trail.
Scoping fintech software development the right way
Fintech software development begins with a clear boundary: what moves money, what only records it, and what your licensed partners handle. Our packages cover the engine layer, meaning the ledger, the matching logic and the price feed. Bring your account structure, the asset types you will trade or hold and the rules that decide whether an order is valid. Those rules shape the risk checks and the audit trail on the Premium build.
Typical mistakes are storing balances as editable numbers, skipping idempotency on API calls and testing only with a handful of orders. We build with immutable entries, repeat-safe requests and automated tests, and Premium adds load testing. Good fintech software development leaves your finance team able to reconcile every balance from the entries behind it, and leaves your engineers with source and documentation to extend.
In short
- Delivery in 21 to 60 days, by package.
- Fixed price, shown before you order.
- Startups building a wallet, exchange or brokerage back end.
- Product teams that need an auditable record of every balance change.
- Copyright yours after full payment.
Fintech Backend Development: common questions
How much does fintech backend development cost?
Prices are fixed and shown by package on our Fintech Backend Development pricing page, so you see the full price before you order. You can also ask for a custom quote.
How long does trading platform development take?
Delivery depends on the package: Basic 21-day delivery; Standard 40-day delivery; Premium 60-day delivery.
What is included in the Basic Package?
The Basic Package includes: Double-entry ledger service with API and tests. Higher packages add more scope, revisions and support.
Can I get a custom trading engine development package?
Yes. If none of the packages fits, use the custom package form on our pricing page to describe what you need, and our team sends you a fixed price.
Why use a double-entry ledger?
Every transaction is recorded as matching debits and credits, which makes balances traceable and errors visible.
Do you handle regulation and licences?
No. We build software, and licensing or compliance advice should come from a qualified professional.
Can the engine handle high volume?
Premium includes load testing so you see how it behaves under pressure.
Will I own the source code?
Copyright of the final work passes to you once the order is paid in full. Paid fonts, stock files or licences, if used, are licensed in your name.
What is an order-book matching engine?
It is the component that pairs buy and sell orders by price and time and records each trade. Standard builds one with a WebSocket feed so connected clients see prices update live.
Ready to start your fintech backend development?
Compare the packages and pick the one that fits. Not sure which? Write to us and we will help you choose.