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G-Tech
Cases

What we have built

For each project we wrote down what the client came with, what we built and what changed in numbers. Projects we are not allowed to name did not make it here.

FintechHealthcareConstructionRetail

At a glance

6

projects we can show

6

industries, each with numbers

Fintech
Node.jsPostgreSQLKubernetes

Customer onboarding for a neobank

European digital bank

Challenge

Issuing a card took 5–7 days. KYC and AML checks were done by hand by compliance officers, and every new market doubled operating costs. Up to 30% of applications were lost during document verification.

Solution

We built a modular platform under the bank's own brand: identity verification providers (Sumsub, Onfido), electronic document signing, configurable roles and a full action log. Deployed on Kubernetes with a 99.9% availability guarantee.

−65%

Time to issue a card

+18 pts

Customer NPS

How we built it
Healthcare
PythonFastAPILangChain

AI assistant for the first appointment at a clinic

Private clinic network, 15+ locations

Challenge

Reception could not keep up. Doctors spent up to 40% of an appointment collecting symptoms and history, and queues kept growing. One patient in four booked the wrong specialist.

Solution

We built a chatbot that interviews the patient before the visit: it clarifies symptoms, checks the clinic's own clinical protocols and suggests which doctor to see. The doctor opens the chart with the history already filled in.

−35%

Appointment length

−84%

Wrong bookings

How we built it
Construction
React NativeNode.jsPostgreSQL

Workforce time tracking on construction sites

Federal construction holding, 50+ sites

Challenge

Nobody knew for sure who had shown up on site. Timesheets diverged from reality by as much as 15%, and the only way to check how busy a site was involved phoning the foreman.

Solution

We built a mobile app: workers check in and out inside a geofence, and the app records a photo and coordinates. The data flows into the payroll system, and management sees a summary in Power BI.

98.5%

Timesheet accuracy

8 мес.

Payback period

How we built it
Retail
PythonXGBoostAirflow

Demand forecasting for a retail chain

Federal grocery chain, 400+ stores

Challenge

Perishables were written off at 8%, while bestsellers kept running out, with stockouts reaching 12%. Ordering was planned centrally, with no regard for what each individual store was actually selling.

Solution

We trained a model on sales history, weather, promotions and local events, more than 50 factors in all. It calculates an order for every item in every store and sends it without a manager in the loop.

−22%

Write-offs

+4.1 pts

Margin

How we built it
Crypto
GoPostgreSQLHSM

Crypto asset custody for an exchange

Crypto exchange licensed in the EU

Challenge

The exchange needed industrial-grade custody: multi-signature wallets, separated hot and cold storage, transaction screening for money laundering, and readiness for the EU's MiCA regulation.

Solution

We designed the custody architecture: keys live in a hardware security module, large operations require several approvals, and every transaction is screened through Chainalysis as it happens.

99.99%

Availability

0

Security incidents

How we built it
Logistics
ReactNode.jsTimescaleDB

A single control room for freight operations

Transport holding, 1000+ vehicles

Challenge

Six systems and no single place to look. Dispatchers spent three hours a day merging data by hand. The arrival time promised to the customer held up in 67% of cases.

Solution

We built one web platform: a live map of every trip, a model that recalculates arrival time from traffic and weather, and automatic alerts when a vehicle drifts off schedule.

−31%

Late penalties

95%

Arrival accuracy

How we built it
Next step

Tell us about your task

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We call you back within a day
You talk to an architect, not a sales manager
We sign the NDA before you send anything
Ways to work with us: fixed price, time and materials, or a dedicated team. We match the format to the task, the timeline and the budget.