Stefan Varga, Developer in Bratislava, Bratislava Region, Slovakia
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Stefan Varga

Verified Expert  in Engineering

Software Developer

Bratislava, Bratislava Region, Slovakia
Toptal Member Since
March 5, 2015

Stefan is a qualified software developer with a computer science degree and nearly a decade of experience in the tech industry. He has founded startups, worked on eCommerce and B2B projects, and more. He is an efficient, reliable individual, and will be an asset to any development team.


Unionsoft s.r.o.
MongoDB, JSON, AngularJS, JavaScript
Independent Startup Companies
PostgreSQL, MySQL, JSON, PHP, Java, CSS3, HTML5, jQuery, JavaScript
Alson s.r.o.
Oracle RDBMS, Microsoft SQL Server, MySQL, XML, Hibernate, Jakarta EE, Java...




Preferred Environment

Git, Eclipse, Linux, Windows

The most amazing...

...thing I've coded is an ERP system with many custom calculations and workflow automations.

Work Experience

Front-end Developer

2014 - PRESENT
Unionsoft s.r.o.
  • Updated the front-end to a new visual design.
  • Fixed bugs in the website's content editing module (a small CMS) and added new types of content blocks.
  • Wrote protractor e2e tests for front-end functionality of the whole system.
  • Wrote unit tests for some modules of the system.
  • Customized the system for several different customers - both graphics and functionality.
Technologies: MongoDB, JSON, AngularJS, JavaScript

Co-founder and Developer

2011 - 2014
Independent Startup Companies
  • Developed an SaaS application for process management of SMEs.
  • Programmed for a site that visualized financial information about private companies. The site presented company financial data collected from public sources.
  • Created parts of an IDE for Android –
  • Wrote responsive promo sites.
  • Built a site visualizing public information on government companies.
Technologies: PostgreSQL, MySQL, JSON, PHP, Java, CSS3, HTML5, jQuery, JavaScript


2006 - 2010
Alson s.r.o.
  • Built an ERP for an SME company.
  • Developed and deployed custom eCommerce sites for medium-sized B2B distributors, engaging in real-time communication with enterprise ERPs.
  • Coded front-ends for document management systems for enterprise companies and government organizations.
  • Built software for data collection and reporting of mystery shopping.
  • Worked on middleware optimization of a BPEL system for a major telco.
  • Built a social networking site for grandparents to connect with grandchildren.
  • Coded a process management system for a major factory.
Technologies: Oracle RDBMS, Microsoft SQL Server, MySQL, XML, Hibernate, Jakarta EE, Java, jQuery, JavaScript
2000 - 2005

Master's Degree in Computer Science

Comenius University - Bratislava, Slovak Republic




Eclipse IDE, CVS, Git, Grunt


HTML, CSS, SQL, Java, JavaScript, HTML5, CSS3, PHP, XML


Hibernate, Spring, AngularJS, Jasmine, QUnit, Protractor


JSON, MySQL, Oracle RDBMS, MongoDB, Microsoft SQL Server, PostgreSQL


Jakarta EE, Windows, Linux, Eclipse

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