Field Applications Engineer — Energy Storage & Training

Signature Solar; Sulphur Springs (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Signature Solar in Texas seeks a Field Applications Engineer to drive energy access innovations. You will be the technical face in the field, owning install quality and training installers across residential and commercial solar, battery storage, and ESS deployments.

You will lead certification, create install guides, and maintain the technical content library while collaborating with engineering and product teams to reduce warranty costs and improve performance.

Qualifications

• 5+ years hands-on experience with residential or C&I solar, battery storage, or power electronics — installing, commissioning, troubleshooting, or supporting at a manufacturer or integrator.
• Deep comfort with inverters, batteries, BMS systems, DC coupling, AC coupling, and grid-interactive systems.
• NEC familiarity (Articles 690, 705, 706) — enough to call out a non-compliant design.
• Experience running training sessions or writing technical documentation that non-engineers actually use .
• Clear written and verbal communication — you can explain a complex fault to an installer without talking down to them, and write it up so the next person does not have to call us.
• Willingness to travel 20–40% depending on quarter (ramps up around new product launches and field campaigns).

Responsibilities

• Build and deliver technical training content — product deep-dives, install walkthroughs, commissioning guides, troubleshooting trees.
• Lead certification sessions for new installers and recertification for existing ones.
• Create install bulletins, best-practice guides, and short-form videos that explain the ‘why’ behind the install, not just the steps.
• Own the technical content library — keep it current as firmware, hardware revisions, and field learnings evolve.
• Review system designs from installers and EPCs before the install goes in — catch problems on paper, not after commissioning.
• Define and maintain the ‘approved install’ standard — what good looks like for each product line.
• Flag designs that are out of spec and partner with Sales and the installer to correct them.
• Take Tier 3 escalations from Technical Support — the ones front-line and Tier 2 can't close.
• Walk installers and techs through complex troubleshooting (parallel systems, grid-interactive edge cases, communication / BMS faults, firmware mismatches).
• Travel to site when the issue warrants it; document what you find, what you did, and what the root cause looked like.
• Partner with the Field Reliability Analyst and Engineering on RCA for field failures — bring the field perspective, not just the lab perspective.
• Reproduce field issues when possible; document reproduction steps so Engineering can fix them.
• Track recurring issues and push for permanent fixes (firmware updates, hardware revisions, install procedure changes).
• Review installer scorecard data with the Director — add technical context to the numbers (is this installer failing because of training gaps, product gaps, or just not caring).
• Lead the coaching conversation with installers on the ‘Developing’ and ‘Watch’ list — turn problem installers into good ones when possible.
• Recommend decertification when coaching is not working.

Skills

5+ years hands-on experience with住宅 or

Inverters & BMS familiarity

NEC familiarity

Training sessions or technical docs

Clear written/verbal communication

Willingness to travel 20–40%

Education

NABCEP certification (PV Installation Professional or Associate)

Job description

Signature Solar in Texas seeks a Field Applications Engineer to drive energy access innovations. You will be the technical face in the field, owning install quality and training installers across residential and commercial solar, battery storage, and ESS deployments.

You will lead certification, create install guides, and maintain the technical content library while collaborating with engineering and product teams to reduce warranty costs and improve performance.