Software engineering
Software design and development with close attention to architecture, performance, reliability, and maintainability.
Engineering & product development
Software
Systems
Technology
XLF develops software, systems, and AI solutions — from technical concepts to dependable implementation. From small, focused projects to complex systems, we build solutions that are sophisticated where they need to be, simple where they can be, and lightweight by design.
ProfileSoftware · Systems · AI · IP
LocationWarsaw · Poland
Operating since2017
What XLF does
Technology developed
with purpose
We combine software engineering, product development, and direct technical problem-solving. A compact structure makes it possible to move efficiently from an idea to a working solution.
Products and systems
Technology development from problem definition and prototyping through implementation, integration, and refinement.
Technology and IP
Proprietary solutions, reusable components, and technical knowledge that build lasting product value.
Artificial intelligence
AI in the real software development cycle
We design and develop solutions that use artificial intelligence, connecting AI models with the software, data, and real processes they are built to support.
Today, we develop software solutions at warp speed — moving exceptionally quickly from concept to a working version without sacrificing engineering control. LLMs and other AI tools support our work, but do not replace knowledge or experience built over the years.
Software engineering
Software built for real requirements
We select architecture and technical solutions to fit the product context. What matters is not only getting a system running, but also making it clear, stable, and ready for continued development.
01
Software architecture
02
Native applications: Windows, Linux, and macOS
03
Mobile application development: iOS and Android
04
Integration and automation
05
Technical maintenance and evolution
06
Game development and interactive experiences
Product & systems development
From concept to operational system
We develop technology products across the technical lifecycle: clarifying assumptions, validating concepts, building the solution, and refining it around real requirements.
ConceptPrototypeSystemEvolution
Hands-on capability
One process.
Many technologies.
XLF connects disciplines that are often separated in larger organisations. Software, electronics, digital media, and production preparation can be developed as parts of one product.
Software and web
Native applications for Windows, Linux, and macOS; mobile application development for iOS and Android; web applications; browser technologies; game development and interactive experiences; systems integration; file and binary-data analysis; specialist tools; and automation.
Electronics and prototyping
Embedded and electronics-related development, low-level assembly programming for embedded systems, hardware-supporting tools, product prototypes, and connections between digital and physical layers.
Visual and production preparation
Raster and vector graphics, artwork restoration and remastering, web design, technical documentation, and production-ready files for physical products.
Video and sound
Video production and editing, sound editing, audiovisual asset preparation, and music production using synthesizers.
Technology & intellectual property
Building lasting
technical value
Our work includes proprietary technology, reusable components, technical knowledge, and intellectual property that can support products over the long term.
We treat technology as an asset: it should be deliberate, extensible, and useful beyond a single implementation.
Company
Compact technology company
XLF sp. z o.o. is an independent technology and product-development company based in Warsaw, Poland. Since 2017, it has developed software, systems, tools, and proprietary technical solutions. From silicon to the user interface.
The work is direct and hands-on. Much of the design and technical implementation is carried out personally by the founders, who also often serve as the principal developers. We work with passion. We do what we enjoy. Specialist collaborators are involved where a project calls for them.
Contact
Let's talk about
technologies
Contact XLF about software development, AI solutions, technology products, systems, or intellectual property.
Write to usEmail[email protected]
Telephone+48 880 543 785
Address
XLF sp. z o.o.
ul. Mokotowska 15A/1B
00-640 Warsaw, Poland
European Union
Registration details
VAT ID: PL7010682335
Registry: 0000671329
Regon: 367023028
D-U-N-S: 438237656