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01Industry · of 34

Fintech software & app development.

Money moves fast. The software has to reconcile.

Payment apps, wallets and financial platforms built around a ledger that balances to the cent.

From our workAirwallex ↗
What we buildFinance
01Payment apps
02Digital wallets
03Lending platforms
04Investment apps
05Expense & spend
06Fintech back-office
Trusted byAirwallexZellerSkydoStockGroKoganHotDocGraphyFyndMILKRUNSnitch
100+
Senior engineers
300+
Products shipped
4 clients
In Fintech
NDA
Before the first call
What makes Fintech hard

The problems we design around.

01

Reconciliation

Every balance must trace back to a record, across providers that each report differently.

02

Compliance by design

KYC, AML and audit trails cannot be bolted on after launch.

03

Trust at first tap

One failed transfer loses a customer for good.

Why Mariox for Fintech

Built for how Fintech actually works.

01

Domain first

We map fintech workflows, users and regulations before design starts, so the product fits how the business already runs.

02

Compliance in the architecture

Requirements such as PCI DSS and KYC / AML are built into data models, access and audit logs from the first sprint.

03

Senior engineers only

The people who scope your fintech product are the people who build it. No juniors behind an account manager.

04

Built for peak load

Load testing, caching and monitoring are planned for the moments fintech traffic spikes, not after launch.

05

You own everything

Code, cloud accounts and documentation sit in your name from the first commit.

Planning a Fintech product? Start with one call.
Book a strategy call →
What we build

Fintech products, end to end.

Pick one, or combine them. Each comes with design, engineering, QA, cloud and support from the same team.

01↗

Payment apps

Send, receive and settle, with clear status at every step.

02↗

Digital wallets

Stored value, cards and top-ups with real-time balances.

03↗

Lending platforms

Applications, scoring, disbursal and collections.

04↗

Investment apps

Portfolios, market data and order flows.

05↗

Expense & spend

Cards, approvals and accounting sync for companies.

06↗

Fintech back-office

Ledgers, admin consoles and reporting.

Fintech work we have shipped.

All work →
AirwallexGlobal business accounts & FX
ZellerBusiness payments & settlement
SkydoCross-border payments for exporters
StockGroInvesting & market data platform
Client feedback

What working with us is like.

Rated by clients
4.8★
From 138 Google reviews
Read the reviews ↗

Certified, and accountable.

Partners · certifications · ratings
CloudAWSCertified engineers
CloudMicrosoft AzureCertified engineers
CloudGoogle CloudCertified engineers
SecurityISO 27001Information security
RatingClutchVerified client reviews
RatingGoogle 4.8★138 reviews
Compliance we build for
PCI DSSKYC / AMLRBI guidelinesSOC 2GDPR

Requirements are confirmed with your compliance team at discovery and built into architecture, access and audit logs from the first sprint.

Typical stack
Node.jsJava / SpringPostgreSQLKafkaReact NativeAWS
Technologies we apply

Emerging tech, applied to Fintech.

Used where it solves a real problem, not as a slide in the pitch.

01

AI & agents

Assistants, document reading and decision support built into fintech workflows, evaluated before launch.

02

Cloud

Secure, auto-scaling infrastructure on AWS, Azure or Google Cloud, with data kept in the region you need.

03

Data & analytics

Pipelines and dashboards that turn fintech operations data into decisions leadership trusts.

04

Automation

Manual handoffs, approvals and data entry replaced by workflows that log every step.

05

IoT & devices

Sensors, scanners and devices connected to your systems where physical operations matter.

06

Blockchain

Shared ledgers only where multiple parties need a record none of them controls.

Full stack

Typical for Fintech
ReactNext.jsAngularVueTypeScript

How a Fintech project runs.

011–2 weeks

Discover

Workflows, users and fintech requirements mapped with your team.

021 week

Scope

Architecture, compliance needs and a fixed estimate you can plan around.

03Sprints

Build

Two-week sprints with a working demo at the end of every one.

04Ongoing

Launch & run

Release, monitoring and a team that stays for what comes next.

Ways to work

Three ways to start.

Most clients begin with discovery, then keep the same people on as a dedicated team.

012–4 weeks

Product discovery

Map what to build, the risks and a fixed estimate before committing to the full build.

02Fixed scope

Build & launch

Two-week sprints with a demo every time, through release and handover.

03Monthly

Dedicated team

A senior squad that works only on your fintech product, scaling up or down by the month.

Fintech, answered.

It depends on scope. Most first releases fall between $25k and $150k. After a short discovery we give a fixed estimate, so the number holds.

Building in Fintech? Let’s talk.

A senior engineer replies within one business day with first questions and an estimate range. NDA on request.

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Other industries

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