Software Testing Engineer

Wärtsilä is an innovative technology company known for being a forerunner in the Marine and Energy markets. Every day, we – Wärtsilians - put our hearts and minds into turning Wärtsilä's purpose of enabling sustainable societies through innovation in technology and services into reality. Our ultimate aim is to provide increased value to both our customers and society. New, game-changing ideas and continuous improvement have been part of our DNA since 1834. Together, we can create new business opportunities and more sustainable future that we can all be proud of. 

We want to transition the world towards a decarbonised and sustainable future. By pushing the boundaries of engineering and technology, we can make it work. We are always on the lookout for future-oriented talent – want to join the ride?

We are intensively looking for pro-active Software Testing Engineer to join Navigational  Simulator team. The candidate will work on market lead product Navi-Trainer Professional that actively in use for seafarers’ education in thousands maritime academies around the globe. The reason of hiring is active business and development team grow.

You will work in Scrum team on complex distributed system with tasks in many different domains from visual system to hardware integrations. The team believes in incremental delivery and work in close collaboration with customers. Company-wide communications are in English. We strive to use only English for written technical communication.

This is a fixed-term contract role, the location is in Belgrade, Serbia

What you will do:

• Participation in testing for navigational simulator
• Manual testing
• Analysis of test results
• Creation of test cases, checklists and automated testing scenarios
• Localizing and documentation of defects
• Simulation of situations leading to errors, their reproduction
• Monitoring bug fixes
• Preparation and support of test documentation (test plans, checklists, test cases, errors) and testing methods
• Analyse defects before handing them over to developers

To be successful in this role, we expect you to have:

• Knowledge and understanding of different software testing and development methodologies, understanding of software development and testing process
• Test design
• Experience in Smoke testing, functional, regression and integration testing
• Communicability
• Knowledge of operating system Windows
• English at intermediate level or higher

Will be a plus:

• Basic knowledge of network configuration
• Basic knowledge of programming languages: Python
• Experience in stress testing, writing simple autotests
• Experience in automating testing of integration solutions

In Wärtsilä Voyage you will have the opportunity to:

• Be a part of a global team of professionals
• Work on complex interesting products and build your career at international scale
• Introduce your ideas and take initiatives
• Profit from the medical insurance, flexible remote working arrangements & other internal benefits

Contact & next steps:

Please submit your application through our Careers Portal. Applications through email will not be considered. After submitting your application you’ll receive a confirmation email. We try our best to get back to everyone within 2-3 weeks after application deadline.  

In case of any questions, reach out to:

Anatoly Shapovalov,
Head of Engineering, Simulation,
anatoly.shapovalov@wartsila.com

Last application date: 28/08/2026 

At Wärtsilä we value, respect and embrace all our differences, and are committed to diversity, inclusion and equal employment opportunities; everyone can be their true self and succeed based on their job-relevant merits and abilities. 

Please note that according to Wärtsilä policy, voluntary consent for a security check may be required from candidates being considered for this position, depending on the applicable country.

This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 18,300 professionals, in more than 230 locations in 77 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com.