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Berlin GmbH LLC
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About us

Berlin GmbH LLC develops and runs its own digital products – web platforms, iOS apps and backends – and builds the same for companies.

We work remotely in CET working hours and communicate in English and Turkish. One experienced senior developer is your fixed contact, supported when needed by a trusted network of designers and developers.

BERLIN GMBH LLC, a Kentucky (USA) limited liability company

What we do

End-to-end product development – from concept to running in production.

All services in detail

  • Concept & UI

    Clarifying requirements, designing flows and creating interfaces that are ready to build.

  • Web front end

    Web applications and websites with Next.js, React, TypeScript and Tailwind CSS.

  • iOS apps

    Apps built with Flutter – published and maintained on the App Store.

  • Backend & APIs

    Services in Go and Node.js with GraphQL or REST, plus PostgreSQL and Redis.

  • Maps & geo

    Our own vector maps, routing and geocoding – without paid map APIs.

  • Infrastructure & operations

    Linux servers, automated deploys, monitoring and backups with tested restores.

Why running products matters

We don’t only deliver projects – we run our own products in production, every day.

That is why we know monitoring, backups, releases and incidents first-hand. This experience goes into every project we build for clients.

All work

  • Antalya Taxi

    Taxi platform with its own map and routing infrastructure: passenger and driver apps, realtime dispatch, admin panel

  • germate

    More than 120,000 job ads imported and processed every day

  • Antalya Weather

    Weather website and iOS app for the Antalya coast

Principles

  1. 1

    Cost awareness

    We choose solutions that pay off in operation: our own vector maps and routing instead of paid map APIs. The entire taxi platform runs on a single VPS.

  2. 2

    Reliability

    We rely on proven patterns: transactional outbox, race-safe dispatch, automated tests and CI – and backups whose restores we actually test.

  3. 3

    Honesty

    We only quote numbers that can be verified, and we are open about the size of our team.

  4. 4

    Handover

    The code lives in your repository, together with documentation for operations and further development. You stay independent – no lock-in.

Technologies

The stack from our live products.

Frontend
Next.jsReactTypeScriptTailwind CSS
Mobile
Flutter (Dart)iOSMapLibre GL
Backend
GoGraphQL (gqlgen)RESTNode.jschipgx/sqlc
Data
PostgreSQLPostGISH3Redis
Maps & geo
Protomaps/PMTilesMapLibreValhallaOpenStreetMap/Nominatim
Infrastructure
LinuxNginxsystemdPgBouncerCloudflareOwn deploy pipelinepgBackRest
Observability
OpenTelemetryPrometheusGrafana
Integrations
Firebase (Push, Remote Config, Auth)PaddleAWS S3LLM APIs (e.g. Anthropic Claude)

Company

Company name
Berlin GmbH LLC
Legal form
BERLIN GMBH LLC, a Kentucky (USA) limited liability company
Address
212 N. 2nd St. STE 100Richmond, KY 40475USA
E-mail
[email protected]
ImprintContact

Looking for support for your development team?

Briefly describe your project or open position. In a free introductory call (30 minutes) we clarify whether and how we can help.

Discuss your project

Or e-mail us directly: [email protected]