Lead Embedded Software 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?

Wärtsilä  Energy Storage Business (ESB) is the leading global energy storage optimizer. Our mission is to deliver integrated energy solutions that build a resilient, intelligent, and flexible energy infrastructure - unlocking the way to an optimized renewable future. By integrating renewables, energy management technology, and storage with traditional energy resources, we reinvent clean energy production from the largest and most complex grids to the most remote and essential microgrids. We play a key role in Wärtsilä’s vision towards a 100% renewable energy future through flexibility, reliability, and integration for a more sustainable world for us all.

Wärtsilä Energy Storage Business (ESB), a leading battery energy storage integrator, is seeking an experienced and motivated Lead Embedded Software Engineer to join our team with a minimum 8 years of experience in embedded software engineering. This exciting opportunity will allow you to contribute with your knowledge and passion in the development of cutting-edge technologies to aid on the Wärtsilä’s vision towards a 100% renewable energy future.

Background/Major:

• Electrical, Computer Engineering, or related field

Desired Technical Skills:

• Embedded System Programming: Experience programming in C, C++, and Assembly for common TI, ARM and PIC processors
• High-level Languages: Working Familiarity with Python, VBA, JavaScript, SQL, and HTML.
• Mathematical Computing: Experience with MATLAB and related products like Simulink and Stateflow for simulation and modeling tasks.
• Software Tools: Practical usage of software management tools like Git, Bitbucket, and Jira. Experience with GNU build tools and cross-compilers.
• Embedded Interfaces: Experience developing low-level device drivers for hardware peripheral interfaces such as SPI, I2C, USART, JTAG, GPIO, ADC and USB.
• RTOS and Frameworks: Programming knowledge of Operating Systems like TI-RTOS, Linux for embedded targets and VxWorks. Familiarity with frameworks like Embedded Coder from Mathworks.
• Safety and Reliability Standards: Working knowledge of safety standards like IEC 61508 and reliability methodologies such as Fault Trees, RBD, STPA, and FMEA.
• Coding Standards: Experience adhering to coding guidelines and standards like MISRA-C and SEI CERT C.
• Systems Engineering: Understanding of systems engineering principles, requirements gathering, analysis, and validation, including familiarity with Model-Based Systems Engineering tools.
• Test Automation: Experience with software quality assurance including unit and integration test development, and code inspection and reviews.
• Hardware Familiarity: Working knowledge of digital and analog circuits, PCBs, IC datasheet analysis, and usage of hardware testing equipment like oscilloscopes and power supplies.
• Communication Protocols: Additional expertise in communication and web protocols within the context of embedded systems such as RS232, RS485, CAN, MODBUS, OPC, Ethernet, TCP/IP, UDP, and HTTP is preferred.
• Documentation: Experience generating technical documentation and potentially authoring internal or external publications.
• Agile Methodology: Experience with Agile development practices and principles is a plus.
• Battery Management Technologies: Understanding of battery management and control systems will be considered a plus. 

Desired Soft Skills:

• Excellent written and oral communication skills
• Strong organizational skills
• Attention to detail
• Ability to work independently and in a team

Responsibilities:

• Develop and maintain embedded software solutions for battery management systems (BMS) and interfaces to the Energy Management System (EMS).
• This role will lean towards development of middleware and embedded communication interfaces to higher layer applications and client applications, such as EMS, as well as internal BMS components.
• Support software architecture design, requirements analysis, interface definition.
• Support interface to integrate model-based automatically generated code in embedded platform
• Conduct system validation and verification supported with automated tools.
• Collaborate with cross-functional teams for system integration and product certification.
• Ensure system reliability and functional safety compliance.
• Support network infrastructure development in an embedded system platform over embedded Linux or RTOS: Ethernet TCP/IP, Modbus TCP, OPC/UA
• Evaluate and implement BMS mathematical algorithms, machine learning and AI solutions in resource-limited embedded systems.

Last application date: 28/05/2026 

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.