Jezdan Gomez
Jezdan Gomez
Jezdan Gomez

I’m Jezdan Gomez

I write technical documents, build calculators and prepare reports from your product data. I also produce 3D models, drawings and CAD libraries from your released drawings. I design photodiodes and their readout electronics, along with EUV filters and multilayer mirrors.

I handle the writing, figures and calculations. Your engineers receive a draft with its calculation files for technical review, followed by a final review of the revisions.

I built EUV Insight for optics engineers designing EUV thin films and multilayer optics. It lets you model a layer stack, compare its spectra with other designs and examine thickness tolerances in the browser.

See the workAbout EUV Insight

How I work

  1. Product data and sources

    I work from your datasheets, test data and drawings, and the questions your sales team hears. I ask about missing data and cite public sources where I use them.

  2. Technical review and approval

    Packages include a technical review and a final review of the revisions; smaller projects include one review round. The proposal sets out the scope, price and delivery date before work starts. You approve the files before release.

Engineering tools

Figures are generated from your data. Models, drawings and libraries are built from your released drawings.

  • Simulation and modeling

    • MATLAB
    • LTspice
    • Python

    Device models, SPICE simulations and every figure drawn from code

  • Circuit and mechanical CAD

    • KiCad
    • Fusion 360
    • AutoCAD

    Schematics, PCB layouts, STEP models and dimensioned drawings

  • Data and documents

    • Python
    • Excel

    Test-data reports, reusable templates and datasheet tables

  • Tool building

    • Claude Code
    • Codex

    Browser calculators and automated checks of every calculation

Delivered as

  • PDF
  • DOCX
  • XLSX
  • STEP
  • DXF
  • KiCad

Plus several programming languages and many more tools. I use agentic coding with Claude Code and Codex to build tools and check calculations faster.

Technical scope

Component and subsystem makers, typically 20 to 400 people, that need application notes, product documentation or tools for selecting parts.

The same work suits precision components in test and measurement, scientific instruments, motion and industrial automation.

Industries I cover

Wavelength range covered, 10 nm to 5 µm

Explore the spectrum
  • Photodiodes and their readout electronics
  • Optics, filters and coatings
  • Lasers, laser drivers and TEC controllers
  • Fiber components
  • Electro-optic and acousto-optic devices
  • Photonic integrated circuits
  • Light sources
  • Optomechanics and motion
  • The optics and system design of spectroscopy, imaging and metrology instruments

Location

I’m based in Ventura County, California, and I work with companies across the US and worldwide, remotely. Documents, files and reviews travel by email and shared folders. Contact me to arrange a call.

Product photography

I also photograph optical and electronic parts for datasheets, product pages and trade-show graphics.

  • Nickel can with a square die on a gold base and two long leads
    Nickel can with a square die on a gold base and two long leads
  • Ceramic dual-in-line package with a long glass window and gold pins
    Ceramic dual-in-line package with a long glass window and gold pins
Product photography

Project terms

Direct contact
Discuss the draft, figures and calculations with me.
Calls by arrangement
Contact me to find a time.
NDAs on request
Confidentiality runs both ways in every contract.
Public-release information only
At kickoff I ask how your products are classified.
Fixed scope and price
The proposal lists the deliverables, price and delivery date.

Start with a free review of your technical content

Get a one-page comparison of your technical content with two competitors, three recommended documents or tools, and a price for the first project.

Get a free content reviewDiscuss a project