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Exowatt

Modular full-stack renewable energy for businesses

Optomechanical Integration & Test Engineer

Hardware Validation & TestingConfirmed live in the last 24 hours
Full-timeMiami, FL, USA

About the Job

Requirements

  • A Bachelor of Science or Master of Science degree in Optical Engineering, Mechanical Engineering, Electrical Engineering, Aerospace Engineering, Physics, or a closely related discipline.
  • At least 2 years of hands-on laboratory, test, or integration experience with optical or precision hardware; graduate research and substantial internship work count.
  • Strong fundamentals in mathematics and physics, including reasoning from first principles, estimating before computing, and checking results against known limits.
  • Hands-on optical bench experience mounting, aligning, and characterizing optics, with careful cleanliness habits for precision components.
  • Knowledge of instrumentation fundamentals, including sensor selection, signal conditioning, calibration, and data acquisition integration.
  • Python skills for test automation and data analysis, including instrument control, NumPy and pandas data reduction, and publication-quality plots.
  • Daily fluency with AI coding agents such as Claude Code or Codex; ability to review, test, and understand generated code.
  • Ability to decompose workflows into agent-executable steps with clean interfaces, verifiable checkpoints, and guardrails, and to identify when an agent is wrong.
  • Working knowledge of a parametric CAD tool for fixtures and test hardware; the team uses PTC Creo and SolidWorks.
  • Good measurement discipline: control variables, calibrate, quantify uncertainty, and validate the measurement before trusting data.
  • A track record of building real test setups or hardware through research labs, internships, capstone projects, FSAE, solar car teams, robotics, or independent builds.
  • Ability to own the full cycle from question and test plan through building a stand, producing trustworthy data, learning from mistakes, and iterating quickly.
  • Comfort with both bench and field work, including precision optical alignment and commissioning outdoor test stands.
  • Structured root-cause analysis when results appear wrong, including validating the measurement first.
  • Ability to write test reports that enable another engineer to reproduce the measurement.
  • Ability to adapt as designs and priorities change based on evidence.
  • Willingness to work extended hours and occasional weekends when test campaigns, commissioning windows, or program deadlines demand it.
  • Ability to lift up to 25 pounds unassisted and work on ladders and lifts and around energized equipment and concentrated light with appropriate personal protective equipment.
  • Ability to work outdoors in Miami heat for extended periods during field testing.

Responsibilities

  • Own optical test stands end to end, from indoor characterization benches and the high-flux test facility to outdoor on-sun stands, including concept, computer-aided design, fixtures, instrumentation, commissioning, first light, and daily operation.
  • Design and run test campaigns from hypothesis to conclusion by writing test plans, building setups, collecting data, quantifying uncertainty, and presenting results that drive design decisions.
  • Characterize optical components and assemblies through alignment verification, focal and flux measurements, camera-based flux mapping, radiometry, thermal power measurement, reflectance, and transmittance.
  • Develop precision alignment procedures and tooling for optical assemblies on tracker platforms, and verify pointing and tracking accuracy in the field.
  • Select, mount, wire, and calibrate instrumentation, including radiometers and power sensors, thermocouples, cameras, tilt sensors, encoders, weather and irradiance instruments, and integrate it into data acquisition systems.
  • Automate tests in Python, including instrument control, data acquisition, analysis pipelines, plots, and reports.
  • Make test infrastructure ready for AI agents by exposing instruments, test sequencing, and data pipelines through scriptable interfaces; use agents to configure tests, run them, monitor overnight, flag anomalies, and run campaigns.
  • Compare measured optical performance against ray-trace predictions and investigate discrepancies to determine whether the cause is hardware or measurement related.
  • Run environmental and durability testing on optical components, including thermal cycling, weathering, and soiling, and help establish reliability for hardware intended to operate outdoors for decades.
  • Own test safety around concentrated flux, including hazard analyses, interlocks, personal protective equipment, and safe operating procedures for indoor high-flux testing and on-sun operations.
  • Document test plans, procedures, results, and decisions on the team wiki; present and defend work in design reviews and grow into ownership of the team's test strategy.
  • Occasionally travel to vendors, calibration labs, and field sites.

Desired Qualifications

  • Radiometry or photometry experience, including power meters, flux mapping, camera-based flux measurement, or infrared thermography.
  • Exposure to concentrating optics, heliostat or concentrated photovoltaic testing, or high-flux measurement.
  • Camera-based metrology and image processing using OpenCV or similar tools to convert images into calibrated measurements.
  • Thermal measurement experience, including calorimetry, heat flux sensors, or flow-and-temperature-based power measurement.
  • Design validation and reliability practices, including DVP&R, accelerated aging, or environmental qualification against IEC or ASTM standards for solar hardware.
  • Motion control experience with stages, encoders, motorized mounts, or closed-loop pointing systems.
  • Exposure to optical simulation tools such as LightTools, Zemax, or another ray tracer, and comparison of measurements against models.
  • Statistics for test engineering, including design of experiments, measurement system analysis, and formal uncertainty budgets.
  • Experience building agentic systems around hardware or simulation, including agents driving instruments or ray-trace models through tool interfaces such as MCP, running parameter sweeps overnight, and summarizing results; or a project giving AI real levers and making its output trustworthy.
  • Machine shop skills and rapid prototyping.
  • Interest in solar energy, heliostats, or large-scale renewable infrastructure.

About the Company

Exowatt

Modular full-stack renewable energy for businesses

Exowatt designs, installs, and maintains modular full-stack renewable energy systems for commercial and industrial clients. Its products are customizable energy solutions built from modular components that can be designed to meet specific energy needs and regulatory requirements, then installed on-site and supported through ongoing maintenance. The company’s approach combines consulting, system design, installation, and long-term service into a single, integrated package, enabling a seamless transition to renewables. This end-to-end service helps clients scale energy capacity as needed and manage energy performance over time. Exowatt differentiates itself by offering a true full-stack, modular package that covers from initial assessment to ongoing upkeep, fostering long-term relationships rather than one-off projects. Its goal is to help businesses lower both their carbon footprint and energy costs by moving to renewable energy with adaptable, scalable systems.

Company size
51-200
Company stage
Series A
Total funding
$90M
Headquarters
Miami, FL
Founded
2023

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