Software development · AI consulting · Berlin
Software, AI and agents – from the idea to production.
BerliTec GmbH has been building custom software since 2001 and advises companies on artificial intelligence, large language models, locally hosted models and autonomous agents.
Services
What we do for you
We work at the intersection of product, data and model – from the first analysis to the running system.
- 01
Consulting & technology advisory
We assess where software and AI create real value – and where they do not.
- Feasibility and opportunity assessment
- Technology choice: cloud, hybrid or local
- Architecture, data flow and interfaces
- Cost, operations and scaling models
- 02
Software development
We build web applications, backends and interfaces that hold up in daily use.
- Web frontends and backends
- APIs and databases
- Mobile and desktop applications
- Integration into existing systems
- 03
AI and large language models
We integrate language models into products and processes – controlled, measurable and affordable.
- LLM integration into existing applications
- Retrieval-augmented generation (RAG) over your data
- Prompt, testing and evaluation strategy
- Cost control and quality assurance
- 04
Local models & data protection
When data must not leave the building, we run models where the data lives.
- Operation with Ollama, llama.cpp or vLLM
- On-premises and private cloud
- No transfer of your data to third parties
- GDPR-compliant processing
- 05
Agents & automation
We build agents that do more than answer: research, extract, verify, trigger.
- Agents with tools (tool use)
- Multi-step workflows and approvals
- Automation of recurring processes
- Guardrails, logging and control
Focus
Artificial intelligence that lands in the business.
Large language models are not an end in themselves. We bring them to where they take work off your plate: into your processes, with your data, under your responsibility.
- Local and open models on your own hardware – with no data leaving the building
- RAG over your documents, databases and file stores
- Agents with tools for research, extraction and process steps
- Evaluation, guardrails and monitoring in live operation
$ ollama serve
$ ollama run qwen2.5:7b-instruct
# runs entirely on your hardware – no data leaves the buildingHow we work
Four steps, no detours
- 01
Understand
We clarify the goal, the constraints and the data – and what the result has to deliver.
- 02
Prototype
Within a short time there is a working prototype you can use to test decisions.
- 03
Build
We take the solution to production, with tests, error handling and clear documentation.
- 04
Operate
We support the launch, monitor quality and keep developing the system.
Technologies
What we work with
We choose tools by the task, not by fashion – and rely on traceable, maintainable systems.
Languages & frameworks
- Python
- TypeScript
- JavaScript
- Node.js
- FastAPI
- React
Data
- PostgreSQL
- SQLite
- Vector databases
- Redis
AI
- Ollama
- llama.cpp
- vLLM
- Hugging Face
- OpenAI-compatible APIs
- RAG
Operations
- Docker
- Linux
- Nginx
- CI/CD
- Monitoring
Platforms
- Web
- iOS
- Android
- Desktop
Contact
Let's talk about your project.
Send us a short message. We will get back to you with a first assessment.