Systems engineering for financial infrastructure

We build the
infrastructure
fintech runs on.

A engineering studio for banks, payment platforms, and financial infrastructure teams — from ledger architecture to real‑time settlement, built to hold up under audit and under load.

Start a project See how we work

What we build

Four disciplines, one standard: money moves correctly, every time.

Payments

Payments infrastructure

Real-time settlement, card processing, and payout rails, engineered to reconcile to the cent and to keep moving when a downstream provider doesn't.

Core

Ledger & core banking

Double-entry ledger systems, reconciliation engines, and core banking migrations, designed so every balance can be traced back to its source event.

Risk

Risk & compliance systems

Fraud detection pipelines, KYC/AML workflows, and regulatory reporting automation built alongside your compliance team, not bolted on after.

Platform

Platform & data engineering

Event-driven architecture, data pipelines, and observability tuned for the uptime and audit trails financial systems are held to.

How we work

A build sequence shaped by what happens when money is involved.

  1. 01

    Discover

    Audit the existing systems, map every data flow, and surface the constraints your regulators and stakeholders won't compromise on.

  2. 02

    Architect

    Design for consistency and auditability first, throughput second — the order financial systems actually have to be built in.

  3. 03

    Build

    Ship in small, reviewable increments, with test coverage on every state transition that touches a balance.

  4. 04

    Ship

    Roll out behind flags, with reconciliation checks and a rollback path defined before go-live, not improvised after.

  5. 05

    Scale

    Instrument everything, tune for the failure modes that actually matter, and hand over documentation your own team can run with.

What we build with

GoKotlinPostgreSQLKafkaKubernetesTemporalgRPCTerraformSnowflakeReact
120+ Systems shipped to production
$40B+ Transaction volume processed by systems we've built
0 Security incidents across production ledgers
99.99% Average platform uptime

Tell us what you're building.

Send a short brief on the system, the constraints, and the timeline. We reply within one business day.

contact@fintekengineers.com