Job Specifications
Job Summary
We are looking for a Senior Software Engineer with proficiency in C# programming to lead the development of the IoT device software and cloud platform software for our connected energy storage systems. The successful candidate will be responsible for the development and maintenance of communications and cloud backend for our IoT devices.
This role is based at our head office in Oxford in the UK.
About Brill Power (part of the Palmer Energy Technology family)
Brill Power, a subsidiary of Palmer Energy Technology, works at the cutting edge of energy storage, power electronics, and battery software. We are a team of problem solvers and innovators, keen to make energy storage as efficient, sustainable, and widely adopted as possible.
Established in 2016, Brill Power is a deep-tech company with roots in the Engineering Department at the University of Oxford. Acquired in 2025 by Palmer Energy Technology Limited, we continue to grow our impact and expand to new markets. We are a small and talented team based in Oxford who are looking for new members to join us for the next chapter of Brill Power.
Here’s what we’re about:
Fun is essential to success: We love what we do. We think you should too.
We are not alone: We share spaces, markets, geographies, and Earth’s resources with everyone around us. Acting in a fair and honest manner is how we work at Brill Power.
We do cool stuff: We don’t make products that are the norm. We innovate and raise the bar on what is possible.
Brill Power develops innovative software and hardware for battery system and energy management. Our proprietary IoT devices enable connectivity, data acquisition and control of battery energy storage systems to provide our customers with an end-to-end hardware + software solution.
Job Overview and Responsibilities
The person who joins us as Senior Software Engineer will design, develop and deploy the software that runs on our IoT devices and our cloud platform as part of the software and data team. The successful candidate will work closely with our Oxford-based data, firmware and aftersales engineers, as well as our parent company’s international technical teams to deliver and maintain our IoT infrastructure.
Key responsibilities include:
IoT Software Development: Developing and maintaining the C# codebase for our IoT devices.
Cloud Software Development: Developing and maintaining the C# codebase for our cloud platform.
API Development: Developing APIs to expose data to external systems, or to ingest data from those systems into our own.
Monitoring & Troubleshooting: Maintaining system reliability, performance, and resolving connectivity issues.
Collaboration and Communication: Working with internal and external software teams, battery & data experts.
Team Dynamics: Maintaining a positive and productive atmosphere within the team.
Skills & Experience
Successful candidates will have the following:
Essential
8 years’ experience in C# (.NET Core 8 and later)
Experience with cloud services (ideally Azure)
Experience with Docker
Undergraduate degree in Computer Science, Engineering, or equivalent experience
Excellent communication skills
Nice to have
Azure IoT
Experience with CAN, Modbus
Kubernetes
QuestDb, DuckDb or KDB
Working knowledge of C++, Python
Track record of successfully delivering commercial IoT solutions
Working Style
· Fast-learner, eager to pick up new technologies
· Pragmatic; comfortable with ambiguity and changing requirements
· Able to work autonomously
· Comfortable working in a small team with a diverse range of responsibilities
Benefits
In addition to a fun and friendly team and working environment, we offer:
· Competitive salary, based on experience
· 25 days of holiday plus bank holidays
· Benefits package to be agreed
· Full time, permanent role, with flexible working hours
· Regular team social events
Get In Touch
There is no perfect candidate, and no single person can do it all, but if this sounds like you and you're looking for somewhere to thrive, we want to hear from you.
Brill Power is an equal opportunity employer and welcome applications from all, without regard to their race, sex, disability, religion/belief, gender reassignment, national origin, sexual orientation, or age.
Please send a CV and cover letter to jobs@brillpower.com, clearly indicating where your skills and experience match what we are looking for in this role.
Brill Power is proud to be a certified Oxford Living Wage employer.
About the Company
Brill Power’s Battery Intelligence Platform brings transformational advances in longevity, performance, cost and sustainability to electric vehicles and stationary energy storage. It is the ultimate end-to-end solution replacing legacy battery management systems and power conversion technology. Brill Power’s mission is to harness the potential in novel battery management systems to improve the performance and reduce the costs of ownership of stationary & motive power batteries as an enabling and sustainable technology for so...
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