System Controls Engineer

Invinity Energy Systems; Bathgate; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

A leading energy storage company is seeking a System Controls Engineer to join their innovative software team. The role involves designing and developing software for distributed battery control systems. The candidate will ensure efficient and reliable energy storage systems, contributing to renewable energy integration and grid stability. This hybrid position requires in-office presence 2 days a week.

Qualifications

• 2 to 5 years of ladder and structured text programming experience.
• Experience with field bus protocols such as Modbus and Ethernet-based protocols.

Responsibilities

• Design and develop PLC code using structured text and ladder logic.
• Optimize system performance and ensure high reliability and efficiency.
• Maintain software documentation.

Skills

Problem-Solving

Attention to Detail

Agile Development

Education

Bachelor’s or Master’s degree in Computer Science

Bachelor’s or Master’s degree in Electrical Engineering

Tools

Git

Jira

Confluence

Job description

Energy storage is the most exciting area in energy today. Massive amounts of energy storage are required if renewable energy is to take its rightful place on the electric grid. Invinity provides an alternative to the most common type of battery, lithium-ion, because the technology that works well in our pockets doesn’t perform as effectively at the grid scale; it wears out, limits use, and can even catch fire.

Manufactured as a standardized product in a factory, Invinity’s vanadium flow batteries don’t degrade, won’t catch fire, and can be operated continuously from full charge to full discharge for 25 years. Invinity has 75 megawatt-hours of modular battery systems in 82 projects across 15 countries—more than any other company in this space. We’ve deployed the largest flow battery systems in the U.S., Canada, Australia, and the UK, and are supported by the UK's National Wealth Fund, some of the world’s leading institutional investors, and projects backed by major institutions including the U.S. Department of Energy and the UK Government.

A compelling product and recent funding position Invinity for dramatic growth as it addresses the global need for stationary energy storage. Join us in transforming renewable energy into a stable and dependable contributor to the transition to net zero.

Invinity operates in the UK, Canada, and the U.S., and trades publicly in the UK on AIM and AQSE and in the U.S. on OTCQX. For more information, visit our webpage.

We are seeking a System Controls Engineer with a strong background in PLC and HMI development to join our innovative software team. In this vital role, you’ll design and develop software that powers our distributed battery control and energy management systems.

Reporting to the Manager of System Controls, you will help ensure our energy storage systems remain efficient, reliable, and responsive over their 25-year lifespan. This is an opportunity to shape the future of grid-scale battery technology with real-world impacts on renewable energy integration and grid stability.

This is a hybrid role requiring in-office presence 2 days a week or 8 days a month.

Role & Responsibilities

1. Design and develop PLC code using structured text and ladder logic
2. Develop and implement algorithms for energy management and battery control
3. Optimize system performance and ensure high reliability and efficiency
4. Promote good software engineering practices through design and code reviews, ensuring maintainable, efficient, and scalable software
5. Maintain software documentation
6. Identify opportunities for and propose continuous improvements

Qualifications and Skills

• Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related field
• Excellent problem-solving skills and attention to detail
• Experience with field bus protocols such as Modbus and Ethernet-based protocols
• 2 to 5 years of ladder and structured text programming experience
• Comfortable working in an agile development environment and taking initiative in design

Desirable

• Hands-on experience with Mitsubishi PLCs/HMIs or Wago PFC
• Experience with other text-based programming languages
• Participation in prototype projects and hardware-in-the-loop (HIL) testing
• Familiarity with tools such as Git, Jira, and Confluence