Senior Software Engineer

Senior Software Engineer

Battalion Energy | Austin, Texas, or Bend, Oregon | Hybrid

About us:

Battalion Energy is advancing the power infrastructure that AI data centers and critical industries depend on. We've built a next-generation software platform for battery energy storage systems (BESS) and critical power. We're seeing exceptional demand, with major projects under contract and a growing slate of large-scale opportunities.

Our energy management system (EMS) unifies supervisory control, power plant and microgrid control, optimization and cloud operations in an extensible platform. Its flexibility and our expertise in battery systems and medium voltage uninterruptible power supply (MV UPS) systems help customers address demanding power requirements.

Our wider software offering includes battery modeling, analysis and optimization. With deployments in several countries, we serve front-of-the-meter and behind-the-meter storage, solar-plus-storage projects, critical power microgrids and industrial facilities. We're extending the platform into new applications, site and fleet operations, and additional energy markets.

Battalion's technical leadership brings deep expertise in energy storage, utility software, remote monitoring, automation, and controls. Strong customer relationships and partnerships with battery and power system manufacturers support our growth. We work collaboratively and hold ourselves to high engineering standards.

We're expanding across engineering, operations, field service, marketing and business support, with growing offices in Austin, Texas, and Bend, Oregon.

The role:

This role focuses on our EMS and control platform, with substantial autonomy and ownership of software behind major customer deployments. You'll work directly with our CTO and Chief Engineer, making architectural decisions and delivering production capabilities that can be reused across customers, sites, and markets.

Most of your time will be spent designing, writing, testing, and reviewing code. You'll also help mentor engineers and shape development practices.

The technology:

The core EMS is built in Rust on real-time Linux. It combines supervisory control and data acquisition (SCADA), power plant control (PPC), microgrid control and optimization, with an architecture for plugins and applications. You'll work on real-time coordination, resilience, and integration across battery systems and data center infrastructure.

Beyond core controls, you can contribute to equipment integrations, the React interface, and Battalion Live, our AWS monitoring and telemetry portal. Integrations span batteries, power electronics, meters, protection relays, microgrid controllers and data center systems.

What you will do:

• Design and build production Rust software for the EMS, taking ownership from technical design through implementation, testing, and release.
• Work directly with project teams implementing customer systems to understand requirements, equipment integration needs, and operational constraints.
• Translate those needs into well-designed, reusable platform features and reliable production code, clarifying tradeoffs and validating the result with project teams.
• Improve reliability, performance, diagnostics, and maintainability as the platform serves more sites and applications.
• Participate in architecture discussions and code reviews, explain tradeoffs clearly and document decisions that others need to understand.
• Help interview and onboard new engineers, mentor colleagues, and strengthen shared development practices while remaining primarily hands-on.

What you bring:

• 10 or more years of software engineering experience, with substantial responsibility for complex production systems and demonstrated ability to deliver high-quality code.
• Hands-on Rust experience and systems programming depth in areas such as concurrency, memory, timing or failure handling.
• A passion for writing clear, well-tested software that behaves reliably in production, and curiosity about energy, physical systems, and AI data center infrastructure.
• Experience collaborating with software and project delivery teams to turn complex customer requirements into reliable, maintainable production software.
• The ability to work independently, seek context when needed, and discuss technical disagreements constructively.
• An interest in mentoring and reviewing code. Formal people management experience is not required.
• Thoughtful use of AI development tools, with responsibility for understanding, reviewing and testing the code you ship.

Experience with BESS, MV UPS or real-time controls is a plus, but not necessarily a requirement. Familiarity with real-time Linux, industrial protocols, AWS or React is also helpful.

Location and working arrangements:

Austin, Texas, or Bend, Oregon. At least three days each week are spent in the office, with the remaining days available for remote work. Occasional field travel is available based on interest and is not required for this role.

Compensation and benefits:

Competitive base salary, bonus and options, with flexibility in the mix based on the candidate and role. We currently offer a benefits stipend while a benefits package is being established, with availability estimated for Q1 2027.