About

How an electrical engineering background informs my approach to full-stack software, testing, automation, and security.

Sean G. BrownFull-Stack DeveloperBackground in electrical engineering, cybersecurity, and Microsoft 365 administration.

From engineering to software

I began my career in electrical engineering, designing industrial power and control systems where every change had to account for the larger system around it.

I moved into professional software development in 2020. Since then, I have built web applications, internal tools, data interfaces, and automation while also taking responsibility for cloud infrastructure, cybersecurity, and Microsoft 365 administration.

That range helps me follow a problem beyond the interface, through the API, data model, permissions, deployment environment, and the day-to-day work the software supports.

How I Work

I start by understanding what someone is trying to do and where the existing software gets in their way. That might mean following a task through several screens, tracing a bug through the backend, or checking assumptions in the data and permissions.

For larger changes, I write down the intended behavior, constraints, and acceptance criteria before implementation. I break the work into changes that can be reviewed and tested, adjusting the plan when the existing application reveals something the initial design missed.

I check complete user journeys as well as individual functions, including failure cases and the behavior around them. Coding agents help with research and implementation, but I review the changes and remain responsible for what gets released.

Toolbox

A focused view of the languages, frameworks, services, testing tools, and platforms I use in current work.

Languages

Frontend

Backend & APIs

Data & Infrastructure

Testing & Quality

Security, Administration & Automation

Engineering Background

Background

A condensed view of the roles, education, and credentials behind the work.

Experience

Web DeveloperApex Waves | November 2025 - May 2026

Modernized legacy e-commerce and internal applications used across inventory, quoting, returns, procurement, checkout, and fulfillment.

Full-Stack Software & Systems Engineer (Technical Developer)Sibylline, Ltd. | June 2020 - November 2025

Built and maintained web applications and analyst-facing data tools; administered Microsoft 365 and Intune; and developed business-process automation, phishing simulations, and employee security training.

Electrical Engineering Design Associate IIIndustrial TurnAround Corporation | March 2018 - May 2020

Contributed to the design of motor-control, substation, power-transmission, and industrial electrical systems.

Field EngineerIndustrial Tests, Inc. | June 2017 - August 2017

Performed field inspection, testing, and maintenance of substations and industrial electrical equipment alongside engineering and field teams.

Hydropower EIT Electrical EngineerAerotek - Contract with HDR, Inc. | January 2016 - June 2017

Supported electrical design and documentation for hydropower facilities.

Education and credentials

B.S. Electrical EngineeringWashington State University, Pullman, WA | May 2015
A.S. Sciences (Physics & Engineering)Bellevue College, Bellevue, WA | June 2012
A.S. Arts & SciencesBellevue College, Bellevue, WA | June 2012
Engineer-in-Training (EIT) in California
CPR/First Aid
OSHA-10 Hour Certified
HAM Radio Technician
Eagle Scout (BSA)