Open to opportunities

Cristobal Lozano Barrera

@cristoballozanobarre

Solar PV Design Engineer at Heliomex Integradores Fotovoltaicos, designing PV systems up to 50 kWp and reviewing residential installations.

Mexico

Message

What I'm looking for

I’m looking for fully remote work with occasional on-site travel, contributing to international solar development teams. I’m open to contractor or full-time arrangements and particularly interested in U.S., European, and Australian solar markets.

At Our World Energy, I review residential solar installations against CAD design packages, checking system configuration, workmanship, and compliance with local codes before final sign-off.

I document discrepancies and coordinate corrective action with field technicians, supporting quality assurance for a U.S.-based residential PV portfolio.

At Heliomex Integradores Fotovoltaicos, I designed photovoltaic systems from 2.5 kWp residential projects to 50 kWp commercial and industrial projects, while expanding into 100+ kWp systems. I analyzed CFE utility bills to size systems and developed designs using PVsyst and AutoCAD/Civil 3D.

I also conducted site surveys, prepared technical reports and Bills of Materials, configured and commissioned inverters, and created SketchUp renders for proposals. I’m interested in contributing to international solar development teams in a remote capacity.

Experience

Work history, roles, and key accomplishments

Current

Real-Time Review (RTR) Engineer

Current

Our World Energy

Jan 2026 - Present (9 months)

Performs Real-Time Review of residential solar installations, verifying workmanship and system configuration against CAD design packages and local jurisdiction codes. Coordinates corrective actions with field technicians to reduce inspection failures and rework.

Real Time Review Quality inspection CAD Based Installation Verification Code Compliance NEC AHJ Solar PV Systems

Solar PV Design Engineer

Heliomex Integradores Fotovoltaicos

Jan 2023 - Jan 2026 (3 years)

Designed and engineered photovoltaic systems from 2.5 kWp to 50 kWp, scaling to 100+ kWp projects. Performed energy consumption analysis, developed designs using PVsyst and AutoCAD/Civil 3D, and prepared BOMs and technical reports.

PVSyst Autocad Civil 3D SketchUp Energy Bill Analysis BOM creation site surveys Inverter Configuration 3D Rendering

Maintenance Assistant Intern

Flecha Amarilla

Jan 2022 - Jan 2023 (1 year)

Assisted the maintenance team in scheduled and corrective maintenance of bus fleets. Gained foundational experience in electromechanical systems, fault diagnosis, and preventive maintenance protocols.

Electro mechanical Systems Fault Diagnosis Preventive Maintenance