Est. 2026 · Slovakia

KLS Labs

Ideas, tested before they're built.

KLS Labs works on quantitative market research, custom software and new products. Every idea starts as a cheap, honest test, on real data or with real users. Only what survives gets built.

Get in touch About the founder

01Expertise

Three areas, one method.

Form a clear hypothesis, test it cheaply on real data, and report what fails as plainly as what works. The same discipline applies to a trading strategy, a piece of software or a physical product.

Quantitative research

Trading strategy research and backtesting, portfolio and factor analytics, statistical testing. Out‑of‑sample validation and realistic trading costs.

  • Equities
  • Crypto
  • Forex
  • QuantConnect LEAN

Software development

Data pipelines, research tooling, analytics dashboards and web applications, from raw data to a working interface.

  • Python
  • C#
  • Go
  • SQL
  • Web

Product development

Taking new products from idea to tested prototype: physical products, iGaming and online businesses. Fast validation, realistic path to execution.

  • Hardware
  • iGaming
  • Online business
Portrait of Filip Kalús

02Founder

Founded and run by Filip Kalús.

A quantitative developer since 2019 and co‑author of four research papers on SSRN. Filip combines quant research and software development with building new products.

Personal website filipkalus.com Background, publications and projects

03Contact

Let's talk.

A project, a collaboration, or an idea worth testing. Email is the quickest way to reach us.