We will help you turn AI into a practical tool, from custom assistants and intelligent data search to automated document processing and advanced analytics. Since 2015, our team of 100+ engineers has supported companies across the US and EU in building scalable tech solutions.

We will turn AI into a practical tool for your business to support daily workflows and customer experiences.
Our engineers design and implement AI-powered systems that work with your existing data sources, platforms, and applications.

Our AI & LLM Engineers are your best choice. Here's what makes us so confident:
of our projects come from client referrals
star rating on Clutch
Expertise in LLM applications, RAG systems, and
production AI deployment
Proven track record with US and EU product
companies since 2015
Transparent communication and flexible
collaboration models
Know-how across the full AI stack, from model
integration to scalable infrastructure



Strong partnerships start with great people. That’s why we work with companies we believe in. We focus on thoughtful growth through quality work. Happy customers spread the word, bringing in like-minded partners. Though if you found us by chance, be like Lenny – say hi if it feels right! 😊
We offer flexible payment options: fixed price, time & materials, dedicated team or on-demand, so you can pick the setup that fits your project and workflow best.
…and more – let's talk about your needs!





Our software agency was established in 2015 by two cousins, Paweł and Marcin. What started out as a team of 5 quickly scaled to 100+ people across technologies and locations on a mission to shift the mentality of outsourcing tactical projects to Polish devs. We handpick clients and projects, which enables our team to create, design and implement complex solutions and softwares.
We're the brains and the heart behind the code. A quirky bunch of passionate pros who love turning ideas into reality. Here, every project is a team sport, and we’re all about building software - and relationships - that last, one line of code at a time.
Dawid
Aleksandr
Piotr
Łukasz
awesome engineers
Quality is our specialty, retention is our metric
Got a question or need project advice? Reach out, we’d love to hear from you! Better yet, visit us at one of our offices or anywhere in Poland.
If you have a question about our AI & LLM Services, you’ll probably find an answer below. If not, feel free to contact us – we’ll be happy to clear things up for you.
LLM development services cover the design, building, and deployment of systems powered by large language models, including custom AI assistants, RAG pipelines, document processing workflows, natural language interfaces, and AI integration with existing platforms. At STB, for instance, we handle the full scope from architecture to production deployment.
Using an LLM API (like OpenAI) means connecting your product to an existing model. Custom LLM development goes further building the architecture, pipelines, and integrations that make that model actually useful for your specific business data, workflows, and users. Most real business applications require both.
Developing an LLM agent involves defining the agent's goals, connecting it to relevant data sources or tools, and building the orchestration logic that lets it reason and act. We use frameworks like LangChain alongside RAG pipelines and vector databases to build agents that work reliably within real business environments.
Look for an LLM development company with hands-on experience across the full AI stack: not just API integrations, but data pipelines, retrieval systems, deployment infrastructure, and model optimization. It's worth asking whether they've delivered production-ready AI systems. We've been building scalable tech solutions for US and EU companies since 2015, and our AI work is grounded in the same engineering standards we apply across every engagement.
Yes, custom LLM development connected to internal knowledge bases is one of our core services. We build RAG pipelines that allow language models to search and retrieve from your documentation, databases, or data warehouses, so the AI works with your data rather than generic training data.
LLM app development typically starts with understanding your use case, whether that's a customer-facing assistant, an internal search tool, or an automated document workflow. We then design the architecture, integrate the relevant LLM and data systems, and build toward a scalable, monitored production deployment.
We optimize LLM serving using tools like vLLM and Nvidia Triton, and support hardware-accelerated formats such as TensorRT where needed. This means your AI systems stay fast and cost-efficient as usage grows.