Job Description

Wärtsilä Energy Storage 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 and a more sustainable world for us all.

Wärtsilä Energy Storage, a leading battery energy storage integrator, is seeking an experienced and motivated Embedded Firmware Engineer to join our team with a minimum 3 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 . The location for this position is Herndon, VA.

Background/Major:

• Electrical, Computer Engineering, or related field

Desired Technical Skills:

• Embedded System Programming: Experience programming in C, C++, and Assembly for common microcontrollers (ARM-based preferred). Candidates with multi-core microcontroller experience will be given preference
• Working Familiarity with high level languages and scripting like Python
• Software Tools: Practical usage of software management tools like Git, Bitbucket, and Jira. Experience with GNU build tools, cross-compilers.
• Embedded Interfaces: Experience developing low-level device drivers for hardware peripheral interfaces such as SPI, I2C, USART, Ethernet, JTAG, GPIO, ADCs.
• Communication Protocols: expertise in communication and web protocols within the context of embedded systems such as MODBUS TCP, OPC, Ethernet, TCP/IP stacks, and
• RTOS: Programming experience with Real-time Operating Systems like free-RTOS, embedded Linux
• Safety and Reliability Standards: knowledge of safety standards like IEC 61508 and reliability methodologies such as Fault Trees, RBD, STPA, and FMEA considered a plus.
• Certification experience for safety applications: IEC 61508, or UL 60730-1, in the context of documentation, and implementation of functional safety code, such as periodic self-test to detect errors in hardware components: Memory, CPU, clocks, external components communicating to CPU
• Coding Standards: Experience adhering to coding guidelines and standards like MISRA-C and SEI CERT C.
• Mathematical Computing: experience with MATLAB and related products like Simulink and State flow a plus. Familiarity with frameworks like Embedded Coder from MathWorks.
• Systems Engineering: Understanding of systems engineering principles, requirements gathering, analysis, and validation.
• 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.
• Documentation: Experience generating technical documentation and potentially authoring internal or external publications.
• Agile Methodology: Experience with Agile development practices and principles.
• Battery Management Technologies: Understanding of battery management and control systems a plus. 

Desired Soft Skills:

• Excellent written and oral communication skills
• Strong organizational skills
• Attention to detail
• Ability to work independently and as part of 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 and support system reliability and functional safety compliance certification efforts for documentation and development.
• Support network infrastructure development in an embedded system platform over RTOS: Ethernet TCP/IP, Modbus TCP, and work with existing TGCP/IP stack

Last application date: 10/06/2025 

Why you and us:

You will be a part of a global organization with local presence and work in an exciting and dynamic working environment with highly motivated and skilled co-workers. We offer interesting and challenging work tasks, as well as personal and professional development in a great team. If you feel excited by being a part of this working environment and think your personal skills and qualities match the job requirements, we look forward to receiving your job application. 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.

We are not accepting unsolicited submissions from 3rd party recruitment agencies.

Successful applicant must be authorized to work in the USA without sponsorship. We look forward to hearing from you. Qualified candidates must apply online:

Individuals hired for positions that require on-site customer interactions and/or in-person travel may be required to be fully vaccinated against COVID-19 or other country-specific vaccinations, unless otherwise prohibited by law. Wärtsilä North America values our employees. We offer a competitive salary and comprehensive benefits package. Wärtsilä North America is an EOE/AA employer.

Effective January 2025, Wartsila companies in the USA will implement a new hybrid work model. Most employees who live within 40 miles of an office will work 2 days per week in office. This model will provide our employees the flexibility of working from home, while also providing the benefits of in-person collaboration twice a week. We will be happy to provide more information during your interview process.

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