S44 Energy builds production-grade software and services for EV charging networks worldwide. With over a decade of hands-on experience, we help operators launch, scale, and evolve their platforms using open standards, flexible architectures, and software proven in real-world deployments.
We are the original authors of CitrineOS, an open-source Charge Station Management System (CSMS) foundation built on industry standards such as OCPP, OCPI, and ISO 15118. Today, CitrineOS is hosted by Linux Foundation Energy and serves as the extensible core behind many live charging networks, giving operators long-term control without vendor lock-in.

Our work lives at the intersection of physical infrastructure and software—integrating EV chargers, energy assets like solar and battery storage, cloud platforms, and user-facing applications to power reliable, scalable charging ecosystems.

Player-coach role owning architecture, product delivery, and technical execution while remaining hands-on in code.

Must Have

·        10+ years of software engineering experience

·        Strong system architecture and cloud-native expertise

·        Experience leading teams on AI/ML initiatives

·        Experience leading technical decisions in production systems

·        Ability to write and review production-quality code

·        Comfort collaborating with product and client stakeholders

Nice to Have

·        Experience with EV charging, energy, or infrastructure systems

·        Familiarity with open-source development models

·        Experience mentoring distributed engineering teams

Location 

· East Coast preferred but open to all U.S.-based legal residents and U.S. citizens

Please note 
· We are not offering visa sponsorship at this time. Candidates must be authorized to work in the United States without employer sponsorship.