About Tomas Sedlacek
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Ing. Tomáš Sedláček / fullstack web applications developer




  • 2014: Master’s degree, University of Economics in Prague (Faculty of Informatics and Statistics - Information systems and technologies)
  • 2011: Bachelor’s degree (red diploma received), University of Economics in Prague (Faculty of Informatics and Statistics - Applied informatics)
  • 2008: Graduation with honors, High school Lepař in Jičín


  • Freelancer | Fullstack web applications developer | 6/2008 -> now
  • Hanaboso | Backend PHP 7 and Node.js developer | 07/2017 -> now
  • Aaron Group | Frontend developer, Java junior developer | 5/2013 –> 7/2014
  • Deloitte Czech Republic | Enterprise risk services analyst (IT part of the financial audits) | 1/2011 –> 5/2013

Technical skills

  • Experienced usage of following technologies:
    • PHP 7 (Nette, Symfony2, Zend2 frameworks)
    • Node.js, Typescript, NPM
    • Golang
    • MySQL, mongoDB, Redis, RabbitMQ, InfluxDB, ELK
    • GIT, Docker, Docker Compose
    • Wordpress
    • xpath, xsl, xslt, docbook, TeX, LaTeX
    • Designing and modelling using UML and BPMN notations
    • Adobe Photoshop, Illustrator, Premiere
  • Basic knowledge of following technologies and tools due to personal experience:
    • Java, Oracle DB, Python, Bash, Kubernetes, Drupal, Joomla, Apache Cordova

Other skills

  • experience with performing IT security audits of corporate IT systems
  • experience with Business Intelligence, ETL and systems interoperability


  • Czech - native
  • English - advanced
  • French - elementary

Personal projects

  • www.rezervacnik.cz - Rezervačník - SaaS reservation system for sport centres (project sold in 2017)

Significant clients (long-term cooperation)

  • DATART International, a.s. (internal CRM system development)
  • El nino parfum, s.r.o. (e-shop platform development)
  • Hanaboso, s.r.o. (data synchronization systems development, Node.js microservicers development)
  • KM – automatik elektro s.r.o., KM Fire s.r.o. (company websites maintenance)
  • NeuronAd Ltd. (development of anti-adblock solution)
  • PURO-KLIMA, a.s. (company websites for companies within the holding)
  • SpofaDental, a.s (company promotional materials and product micro-sites)

Public lectures

kedlas lectures