Software Engineer

Wärtsilä is a world leader in marine technology and leading the industry's transformation towards a decarbonised and sustainable future. With the world’s widest portfolio and service network, we – Wärtsilians - deliver efficient, safe and sustainable integrated products and solutions to enhance the business of our customers. The opportunities presented through digitalisation and new technologies are offering a new era of shipping. Did you know that shipping is the world’s most efficient mode of transportation and that 88% of the world's trade is carried by sea?

We want to change the course towards an interconnected and cleaner maritime future and are constantly on the lookout for future-oriented talent to join our team and to work towards enabling sustainable societies through innovation in technology and services - together. Are you ready to jump onboard?

• Design and implement software components with focus on sensor integration, real-time data processing, and external system interfaces.


• Develop and maintain components including radar and ARPA processing, AIS data sources, network audio, direction finders, weather station integration, and recording/playback subsystems.


• Implement and support external system interfaces, including IALA IVEF target exchange, proprietary protocols, and REST/OpenAPI integrations with third-party port management systems.


• Contribute to platform architecture decisions, particularly around performance, redundancy, and high availability.


• Participate in code review, maintaining adherence to quality, safety, and maintainability standards.


• Investigate and resolve defects in live and pre-production deployments, including root cause analysis in complex, distributed environments.


• Produce and maintain technical documentation.


• Collaborate with system engineers, project delivery teams, and product management to translate customer and regulatory requirements into software solutions.

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  Demonstrated experience developing production-grade software 
  
  


• Sound understanding of asynchronous I/O, socket programming, and protocol parsing (TCP/UDP).


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  Experience developing for Windows-based platforms 
  
  


• Proven ability to work with and reason about large, existing codebases.


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  Strong analytical and debugging skills in complex, multi-component systems.
  
  


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  Efficient in C++ 
  
  

• Experience with real-time or safety-critical systems development.


• Familiarity with sensor communication protocols including NMEA, Modbus/TCP, or similar.


• Exposure to IALA standards, AIS protocols, or VDES.


• Background in maritime, defence, aviation, or other safety-critical domains.

Last application date: 30/06/2026 

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.