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Company profile

FlexGen Tech Stack

Battery energy storage integration and energy management software

Software Development Durham, North Carolina 201–500 employees Founded 2009 Privately Held

FlexGen integrates utility-scale battery storage systems and runs them through its own energy management software, staying hardware agnostic. A C++/Go control stack alongside InfluxDB and Seeq points to real-time telemetry and safety-critical control work, while hiring in Finland and Germany plus Nordic storage sales projects signal an active European expansion.

Tech Stack 36 technologies

What FlexGen Is BuildingChallenges and projects from their job posts

◆Challenges

  • Capturing utility-scale storage sales in Europe
  • Meeting grid interconnection requirements
  • Long-lead component delays
  • Vendor qualification complexity
  • Single point of failure risk
  • System modeling accuracy

▲Active Projects

  • Utility-scale storage sales in Finland and Sweden
  • Control software for power generation devices
  • Deterministic timing safety software
  • Battery and PCS integration
  • Energy storage system modeling
  • Interconnection applications

Hiring Activity

Steady9 roles · 1 in 30d

Department

Engineering
5
Sales
2
Finance
1
Ops
1

Seniority

Manager
3
Mid
3
Senior
3
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About FlexGen

FlexGen is a Durham, North Carolina-based company, founded in 2009, that delivers integrated battery energy storage systems. Its HybridOS energy management platform commissions and operates storage assets, and it works with third-party hardware or supplies complete systems. Customers include utility-scale storage, solar-plus-storage and backup power buyers. The privately held company employs 201–500 people and hires across the United States, Finland and Germany.

HeadquartersDurham, North Carolina
Company Size201–500 employees
Founded2009
Hiring MarketsFinland, Germany, United States

Frequently Asked Questions

What tech stack does FlexGen use?

FlexGen uses C++, Go, Python, Java, React and Node.js, with MongoDB and InfluxDB for data, Docker, Jenkins and Ansible for delivery, AWS for cloud, and Salesforce and NetSuite for business operations.

Is FlexGen expanding into Europe?

Yes. FlexGen is hiring in Finland and Germany and pursuing utility-scale storage project sales in Finland and Sweden, alongside its US operations.

Where is FlexGen headquartered?

FlexGen is headquartered in Durham, North Carolina, United States, and has 201–500 employees.

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How this profile is built

FlexGen's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.