Katarina Milic, Developer in Belgrade, Serbia
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Katarina Milic

Verified Expert  in Engineering

QA Automation Developer

Belgrade, Serbia
Toptal Member Since
August 16, 2019

Katarina has several years of experience working as both an automation QA and developer—mainly creating automation test infrastructures and continuous integration processes. While working for the MathWorks, she developed test tools in Java, improved build infrastructure, and ran automation, performance, and manual tests. She's also worked as a technical team lead, supervised internship projects, and interviewed candidates for the QA position.


Linux, IntelliJ IDEA, Jira, Subversion (SVN), Git, Simulink, Hamcrest, JUnit...
Scrum, Visual Studio, Jenkins, Rally, WinDbg, Google Mock (GMock), Google Test...
Scrum, C#, Rally, Jenkins




Preferred Environment

MacOS, Linux, IntelliJ IDEA, Git, Selenium, JUnit, Java

The most amazing...

...thing I’ve built was a test utility in Java that creates simulink projects on disk from their in-memory dependency graphs.

Work Experience

Quality Automation Engineer

2016 - 2018
  • Developed Java and MATLAB test tools used for automation testing.
  • Designed and implemented makefiles for automating and improving product build infrastructure; also worked with other teams in the adoption of the new infrastructure.
  • Composed Python and Bash scripts to automate manual steps in test tasks creation.
  • Monitored and contributed daily to automate the UI, performance, and unit test suites.
  • Analyzed automation test failures, determined the root cause, and implemented effective countermeasures.
  • Collaborated with product developers and fixed bugs in the production code that were discovered with automated tests.
  • Created bug reports—taking part in test and bug-fix code reviews and verified that the bugs were fixed.
  • Worked as a technical project lead for QA interns.
  • Organized and actively participated in team and company-wide testing events.
  • Interviewed candidates for the QA position.
Technologies: Linux, IntelliJ IDEA, Jira, Subversion (SVN), Git, Simulink, Hamcrest, JUnit, Bash, Python, Make, MATLAB, Java

Software Developer

2014 - 2015
  • Developed new features for a collaboration application (Cisco Jabber) following product owner requirements, making sure code is testable and implements best practices.
  • Wrote unit tests to cover new features and maintain the highest level of code quality.
  • Triaged and fixed bugs found and reported by QA.
  • Presented new features to the product owner on the meetings.
  • Applied Scrum methodology in the team.
Technologies: Scrum, Visual Studio, Jenkins, Rally, WinDbg, Google Mock (GMock), Google Test, C++

Technical Team Lead

2014 - 2015
  • Attended and represented the team in meetings.
  • Made sure all technical questions are answered and forwarded to the right people.
  • Helped team with task assignments.
  • Ensure that the work was tracked properly with the Rally management tool.
Technologies: Scrum, C#, Rally, Jenkins

Quality Assurance Engineer

2011 - 2014
  • Designed and implemented an automation test and report mechanism in Jenkins used by the team and product managers as an insight into the product quality status.
  • Developed and maintained C# code (White automation framework) used in FitNesse automation test scripts.
  • Ran and maintained manual test procedure; wrote and executed test cases and documented and managed bugs in Rally.
  • Used various Cisco tools (CUCM, CUP, CDETS) for testbed configuration and issue management.
  • Automated manual test suites for desktop collaboration application (Cisco Jabber) which reduced test case execution significantly.
  • Applied Scrum in the day-to-day work while collaborating with a team located in Ireland.
Technologies: Scrum, Rally, TortoiseSVN, Jenkins, FitNesse, C#

PSTech | Cisco Jabber Test Automation

I set up automation infrastructure from the ground up using Jenkins. For this project, I've automated all the tests in multiple teams, that were run manually before. This required setting up test environments using Cisco unified collaboration servers, designing and developing test methods in C# and using FitNesse to write test scripts.

I also created a mechanism for automated result publishing used by the teams and product managers to gain insight into the current product quality.

PSTech | Cisco Jabber Development

I designed and developed new features for collaboration application in C++ using Visual Studio environment. This included writing unit tests using GTest and the GMock framework.

MathWorks | Simulink Project Builder Form In-memory Graph

I designed and developed a test tool in Java for creating Simulink projects from their in-memory graph representation. I also wrote unit tests for the tool. I made the code extensible and applying design patterns to fulfill high coding standards.

The tool was used by team members and automation tests to create Simulink projects with desired dependencies between files easily.

MathWorks | Improved Component Build Infrastructure

I designed improved build infrastructure by automating all the steps that required manual intervention. This included introducing myself to GNU Make to write new and improve existing makefiles.

I also wrote unit tests in MATLAB to cover the project. This project required working with other teams and giving technical support while they switch to new build infrastructure.

MathWorks | Improving Automation Tests

I worked as a technical lead for this project; the goal of the project was to have testing done along with documentation like readability.

This required designing and writing Hamcrest matchers that could be reused across the project with custom failure message that is easy to understand. The results were easily readable and understandable tests, with test conditions that read like natural language sentence. This also reduced time when investigating test failures as the failure message was clean and specific
2007 - 2012

Master of Science (MSc) Degree in Electrical Engineering and Computer Engineering

University of Belgrade School of Electrical Engineering - Belgrade, Serbia


Selenium WebDriver, WebDriver


MATLAB, Jenkins, GNU Make, FitNesse, IntelliJ IDEA, Jira, Rally, Git, Subversion (SVN), CUCM, Cisco Jabber, Apache Maven, Apache JMeter, GitHub, Makefile, TortoiseSVN, Make, Visual Studio, WinDbg, VMware


Selenium, JUnit, Google Test, Google Mock (GMock)


Java, Java 8, Bash, C++, C#, Simulink, Python, HTML, Bash Script


Agile, Scrum, Test Automation, Continuous Integration (CI)


Linux, Windows, MacOS


QA Automation, QA Testing, Hamcrest, Manual QA, Code Coverage, Test Cases, UI Testing, API Testing, Team Leadership, Performance Testing, LDAP

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