Trusted by finance teams worldwide

Design. Build.
Secure. Scale.

From ledgers and payment rails to trading dashboards and audit trails, we partner with you at every step — and stay on the hook after launch.

Senior-only team

No junior devs learning on your production ledger. Everyone here has shipped money-moving code before.

Transparent delivery

Weekly progress, real numbers, and access to the engineers who wrote the code — not a status you can’t verify.

Scalable teams

Spin capacity up for a launch, down for maintenance. You pay for the work, not the bench.

Relentless correctness

Reviews, automated tests, and reconciliation on every deliverable. We ship when the numbers balance.

Selected work
worth a closer look

001

AngelGlobal B2B Operations

We engineered a robust back-office payments platform featuring multi-currency wallets and named IBANs, delivering seamless B2B settlement flows, sharper operational control and reliable multi-currency handling at scale.

IndustryPayments
Duration9 months
ServicesBackend · Payments · Infra
002

Muffin Business Intelligence

We delivered a purpose-built business intelligence platform that equips finance and management teams with automated reconciliation and real-time performance monitoring, turning fragmented data into clear, actionable insight.

IndustryFinTech
Duration7 months
ServicesUX Full-Stack · Data · Analytics
003

Digiwealth DeFi Lending App

We built a decentralised stablecoin lending application using Morpho infrastructure, enabling secure, efficient on-chain lending with transparent rates and institutional-grade reliability.

IndustryLending (DeFi)
Duration2 months
ServicesSmart Contracts · Backend · Protocol Integration

Services we provide
for your business

01

Product & Design

User-focused interfaces for complex financial workflows — where clarity prevents costly mistakes.

  • Responsive layouts for every device
  • Dashboards that make data legible
  • Brand-aligned design systems
02

Engineering

Scalable, maintainable systems built with proven technology — fast, observable, and rock-solid.

  • Clean, modular, tested codebases
  • API-driven architecture
  • Automated testing & CI/CD
03

Reliability & Compliance

The boring stuff that matters: uptime, security, audit trails, and deploys that don’t need a war room.

  • 24/7 monitoring & alerting
  • KYC/AML & immutable audit logs
  • Regular security patches

Tools we use
to build your product

Go

Concurrent, fast services

Rust

Safety-critical components

PostgreSQL

Transactional data store

Kafka

Event streaming backbone

React

Declarative UI library

Node.js

Scalable network runtime

AWS

Cloud infrastructure

Kubernetes

Container orchestration

Grafana

Observability & metrics

Vault

Secrets & encryption

Our numbers
speak for themselves

75+

Projects delivered

Custom financial software shipped to production.

50+

Clients worldwide

Trusted across banks, startups, and fintechs.

10K+

Hours saved

Automation that removed manual, error-prone work.

99.9%

Uptime

Reliable platforms that stay up when it counts.

Ready?

Let’s talk.

Send us the ugly version — the outage, the deadline, the audit, the codebase nobody wants to touch. A senior engineer replies within one business day.

Company GS Fintech UAB
Address Vilnius, Naugarduko g. 3-401, LT-03231
Email us
  • Designed for user experience, built for results
  • From concept to launch — seamless execution
  • Reliable support & continuous improvements