About FlexGen

Based in Durham, N.C., FlexGen is an innovative software and services provider in the global energy storage sector. At the forefront of the energy transition, FlexGen leverages decades of engineering and software expertise to help shape the future of sustainable power both in the United States and globally. FlexGen's HybridOS™ software seamlessly integrates with any hardware vendor and with both traditional and renewable power sources. Our advanced analytics and AI-driven insights enable energy storage owners to effectively deploy diverse power market strategies and integrate various generation forms, enhancing grid stability and increasing economic returns. With 1.5M hours of runtime and 8 GWh of energy storage systems managed with HybridOS™, FlexGen provides field-tested software and services solutions that are trusted by the most technically and commercially demanding developers, utilities, government agencies, and industrial companies in the world.

Position Description:

FlexGen is building the future of sustainable energy infrastructure—where datacenters aren’t just power consumers, but smart, responsive participants in a more resilient grid. As part of our energy storage platform team, you’ll engineer control systems that make datacenters more efficient, reliable, and sustainable.

We're looking for a systems-minded engineer to develop real-time control applications that orchestrate power routing, thermal systems, and auxiliary infrastructure within our energy-integrated datacenter platform. This role is about high-performance control on Linux-based systems, where milliseconds matter and uptime is everything.

Datacenters are critical infrastructure—and they’re also some of the world’s largest energy users. At FlexGen, we're changing the equation. Our HybridOS platform helps facilities operate more sustainably and intelligently, using energy storage to reduce peak demand, support grid reliability, and conserve natural resources. If you thrive at the intersection of physical systems and software—and want to help shape the datacenter of the future—we want to hear from you.

Major Job Responsibilities:

• Develop real-time applications that control power routing, thermal management, and system-level coordination
• Design fault-tolerant software architectures for auxiliary system control with sub-second response times
• Integrate FlexGen's energy storage and HybridOS platform into new datacenter product lines
• Interface with HVAC systems, sensors, and power hardware to monitor and optimize infrastructure performance
• Support commissioning and test of new installations—on-site or remotely—with an eye on uptime and efficiency
• Collaborate with power systems and software teams to align control logic with energy market participation and operational goals
• Deliver solutions that help reduce energy and water consumption while improving overall system resilience

Position Requirements:

• Degree in Electrical Engineering, Computer Engineering, or related field
• 3–7 years building control systems or real-time applications in a production environment
• Background in datacenter infrastructure, industrial automation, or grid-scale energy systems
• Demonstrated ability to work across domains—hardware, controls, networking, and software
• Clear understanding of fault domains, isolation techniques, and fail-safe system behavior
• Experience collaborating with cross-functional teams in fast-paced, reliability-focused environments
• Bonus: Experience with microgrid systems, energy optimization, or demand response strategies
• Technologies You Should Know
• • Proficiency in C++, Go, or similar systems-level languages
  • Interfaces and protocols: Modbus, SNMP, MQTT, CAN
  • Data acquisition and sensor control systems
  • Networking fundamentals and secure system communications
  • Experience with system redundancy, failover strategies, and high-availability design
  • Familiarity with HVAC controls, rack-level power systems, or facility-scale environmental monitoring

FlexGen provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, FlexGen complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. 

FlexGen expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. 

To the extent permitted by law, employees are subject to periodic random drug testing, and post-accident and reasonable suspicion drug and alcohol testing.