NextGenEnergyJobsRenewable Energy Jobs
CompaniesCitiesIndustries

NextGenEnergyJobs

The #1 platform for renewable energy careers. Join thousands of professionals who've found their dream jobs in renewable energy, sustainability, and renewable tech.

0+Newsletter subscribers
25K+Jobs posted
100+Companies

Sustainability Partners

Sustainability Software DirectoryRefurbished Tech Guide

Find Jobs

  • All Jobs
  • By Location
  • By State
  • International
  • By Industry
  • Top Companies
  • Job Titles

Job Types

  • Remote Jobs
  • Hybrid Jobs
  • Full-time
  • Part-time
  • Contract
  • Internships
  • Visa Sponsored

Experience

  • Entry Level
  • Mid Level
  • Senior Level
  • Executive
  • Remote Internships

Resources

  • Career Advice Hub
  • Top 10 Jobs
  • Solar Sales Salary
  • Become Solar Engineer
  • Salary Insights
  • CV Analyzer
  • Post a Job

Popular Job Locations

San Francisco
245 jobs
Boston
189 jobs
Denver
167 jobs
Austin
143 jobs
New York
298 jobs
Chicago
132 jobs
Seattle
201 jobs
Portland
98 jobs
Los Angeles
176 jobs
San Diego
87 jobs
Washington DC
203 jobs
Atlanta
112 jobs

Hot Remote Specializations

Project ManagerSolar SalesCustomer SuccessData EntryAll Data Entry
© 2026 NextGenEnergyJobs. All rights reserved.
Privacy PolicyTerms of ServiceAbout UsContact
  1. Home
  2. Jobs
  3. Lead Optical Engineer (Austin, TX)
Exowatt logo

Lead Optical Engineer (Austin, TX)

Exowatt
Austin, TX
Full Time
Posted June 16, 2026
Solar Energy
~54 people viewed this recently
Apply Now

Application opens on company website

Job Description

Exowatt is revolutionizing the energy landscape for the AI era with our groundbreaking P3 system that captures solar energy, stores it as heat, and generates electricity on demand.

Key Responsibilities

• Design, automate, and optimize optical test setups for our Fresnel-lens concentrators and complex opto-mechanical assemblies, ensuring efficiency and precision. • Characterize concentration ratio, focal-spot flux distribution, and end-to-end optical efficiency, and validate these measurements against design models. • Develop tailored solutions for validating optical models, ensuring they meet technical and performance specifications. • Execute advanced optical testing, troubleshooting, and validation to ensure optimal product performance and reliability. • Investigate sun-tracking alignment, acceptance angle, and off-axis behavior, and their impact on delivered concentration and system yield. • Characterize long-term optical durability — including UV-driven transmittance loss, soiling, and thermal cycling — to support a 30-year field lifespan. • Automate test procedures using Python and C++ to streamline workflows and improve accuracy. • Feed validated optical performance data into thermal models and the system digital twin (developed in collaboration with NVIDIA and AWS) to support predictive performance and O&M. • Work closely with the Optical Product Development and R&D teams to integrate test results and feedback into design and development processes. • Collaborate with optical, mechanical, electrical, and systems engineering teams to ensure alignment across product development stages. • Define and validate manufacturing tolerances for optical components produced at high volume in domestic factory settings. • Analyze and document test results, providing insights, recommendations, and clear technical documentation. • Utilize non-imaging ray-tracing software, such as LightTools or FRED, for performance simulations and test validation. • Research and address thermal and environmental impacts on optical system performance. • Maintain clear, organized technical documentation for internal teams and external stakeholders.

Requirements

• Master's or PhD in Optical Engineering, Physics, Electrical Engineering, or a related discipline, with a minimum of 3 years of industry experience, or equivalent work experience. • Strong expertise in optical testing and model validation, with experience automating test setups. • Proficiency in Python and C++ for test automation, data analysis, and workflow optimization. • In-depth knowledge of non-imaging optics and related practical applications. • Familiarity with non-imaging ray-tracing tools such as LightTools or FRED. • Hands-on experience with optical systems in a lab environment, including assembly, alignment, integration, and testing. • Proficiency in optical tolerance analysis and defining manufacturing tolerances for optical components. • Experience with concentrating optics, solar concentration (CPV/CSP), high-flux systems, or optical-to-thermal coupling is a strong advantage. • Familiarity with polymer optics (e.g., PMMA Fresnel lenses) and their long-term durability under UV and thermal stress is a plus. • Familiarity with optical modeling tools such as ZEMAX, CODE V, or similar is a strong advantage. • Competence in generating technical documentation and simple CAD drawings to support engineering and manufacturing. • A problem-solving mindset, with the ability to work independently and collaboratively. • Excellent communication skills, capable of articulating technical concepts to both technical and non-technical audiences.

Ready to Apply?

Join Exowatt and make an impact in renewable energy

Apply Now

Stay Updated on Sustainability Jobs

Get the latest renewable energy jobs and career tips delivered to your inbox.

Job Alerts

Get notified about new sustainability jobs

More at Exowatt

Data Center Engineering Project Manager

Austin

Lead Mechanical Engineer - Heat Exchangers

Miami

Electrical Engineer

Miami

Jobs in Austin, TX

Senior Sales Engineer

Last Energy

Contracts Counsel

Last Energy

Consulting Solution Architect, SLED- Austin

Pure Storage

More jobs at Exowatt

Exowatt logo

Data Center Engineering Project Manager

Exowatt
AustinAustin, Texas
Full Time
Apr 22
Exowatt logo

Lead Mechanical Engineer - Heat Exchangers

Exowatt
MiamiMiami, Florida
Full Time
Apr 11
Exowatt logo

Electrical Engineer

Exowatt
MiamiMiami, Florida
Full Time
Apr 24

More jobs in Austin, TX

Last Energy logo

Senior Sales Engineer

Last Energy
NEW
AustinAustin, DC
Full Time
22h
Last Energy logo

Contracts Counsel

Last Energy
NEW
AustinAustin, DC
Full Time
22h
Pure Storage logo

Consulting Solution Architect, SLED- Austin

Pure Storage
NEW
AustinAustin, Texas
Full Time
22h