Fintech software development
Financial software has no margin for the kinds of bug most apps shrug off. Money, identity and trust are on the line, and regulators are watching. We build fintech products the way they have to be built: secure by design, correct under load and ready to meet the standards your business is held to.
Where fintech is unforgiving
Building for finance means clearing a bar most software never has to. Correctness, security, auditability and regulatory readiness aren't features you add later. They shape the architecture from the first commit, and that is how we approach this work.
- Money movement that must be correct, idempotent, and never double-spent
- Security and fraud resistance under constant, motivated attack
- An audit trail that can answer 'who did what, when' for compliance
- Readiness for standards like PCI DSS, PSD2, and strong customer authentication
What we build for fintech
The capabilities behind our own platform (secure backends, real-time systems and hardened infrastructure), together with the mobile apps we build, applied to the demands of financial software.
Secure, correct backends
Payment, ledger and transaction systems in Go or Rust, with idempotency, careful concurrency and the money-movement edge cases handled rather than hoped away.
Mobile and web apps
Customer-facing apps in Flutter and Next.js with biometric authentication, secure session handling, and the responsiveness people expect from a banking app.
API integration
Integration with payment processors, banking-as-a-service providers, KYC/AML services and open-banking APIs, with the retries, reconciliation and error handling finance demands.
Compliant-ready infrastructure
Hardened, observable infrastructure on Kubernetes with tenant-scoped access, encryption and a tamper-evident audit trail, built toward the standards your auditors will ask about.
How we build for finance
We build security into the process: static analysis and dependency scanning on every change, hardened pipelines and a penetration test before release. For finance, that discipline is the baseline, not an option.
Fintech development questions
Can you make our product PCI DSS or PSD2 compliant?
We build software designed to meet those standards: secure architecture, proper encryption, scoped access, strong customer authentication and the audit trails compliance requires. To be clear, certification is granted by qualified assessors and depends on your whole organisation, not only the code. We help you build toward it and support the assessment, but we don't claim to certify you ourselves.
Why Rust and Go for financial systems?
Both give you performance and reliability, which matter when money moves. Rust's compile-time memory and thread safety rules out whole classes of bug on critical paths; Go's simplicity and concurrency suit transaction services and APIs that have to stay correct under load. We choose per component, and we handle the idempotency and concurrency edge cases that cause double-spends instead of assuming the framework does.
How do you handle the security side?
Security is built into how we build, not bolted on. Static analysis and dependency scanning run on every change, secrets are kept out of the codebase, pipelines are hardened, and a penetration test runs before each major release. For fintech we also lean on threat modelling early, because the cost of a design-level security flaw in finance is far higher than the cost of catching it up front.
Can you integrate the payment and banking providers we use?
Yes. We integrate payment processors, banking-as-a-service platforms, KYC/AML providers, and open-banking APIs, with the reconciliation, idempotent retries, and error handling that financial integrations demand. We wrap each provider behind a clean abstraction so swapping or adding one later doesn't ripple through your whole system.