Field Reliability & Serviceability Engineer, BESS

EOS; Edison (NJ); On-site; USD 120,000 - 150,000; Full time

Job summary

Eos Energy Enterprises in Edison, NJ, seeks an Engineer, Product Serviceability & Field Reliability to bridge product design with field deployment. You will translate field feedback into design inputs and equip Field Services and EPC partners with standards, diagnostics, and documentation for efficient serviceability.

The role emphasizes field data analysis, telemetry, and commissioning support, with travel across North America.

Qualifications

• 5+ years in utility-scale BESS or related power systems.
• Bridge OEM engineering and EPC/field execution.
• Megawatt-scale energy storage commissioning experience.
• Strong root cause analysis across hardware/firmware.
• SQL for fleet telemetry monitoring.
• Python for diagnostics and data analysis.
• Experience authoring technical standards or due diligence docs.
• MS in Engineering or equivalent experience; sustainability focus a plus.

Responsibilities

• Serve as primary liaison between Product Engineering and Field Services, ensuring constructability, commissioning sequencing, and long-term serviceability.
• Support Field Quality RCA on field-reported hardware/firmware failures and translate findings into design change requests, retrofit specs, or service bulletins.
• Build and maintain SQL-based fleet telemetry monitoring to flag precursor failure signatures; use Python for diagnostics and trend analysis.
• Author and maintain technical due diligence standards and field-readiness documentation used by EPC partners, Field Services, and internal stakeholders.
• Identify and resolve thermal, mechanical, and power-delivery bottlenecks impacting serviceability and commissioning timelines.
• Partner with Commissioning and Field Services to reduce time-to-resolution on site issues by improving diagnostic tooling and spare parts logic.
• Support RFP and pre-sale technical due diligence by providing serviceability input on system designs.
• Contribute to fleet-wide uptime KPIs and report data-driven reliability trends to Deployment leadership.

Skills

Field reliability

Root cause analysis

Python scripting

Diagnostic tooling

Systems commissioning

Education

MS in Engineering or equivalent

Sustainable energy systems focus (plus)

Tools

SQL-based telemetry

Python

Diagnostics tooling

Job description

Eos Energy Enterprises in Edison, NJ, seeks an Engineer, Product Serviceability & Field Reliability to bridge product design with field deployment. You will translate field feedback into design inputs and equip Field Services and EPC partners with standards, diagnostics, and documentation for efficient serviceability.

The role emphasizes field data analysis, telemetry, and commissioning support, with travel across North America.