Senior Software Engineer mobile, web & delivery

Earl Hayes

I design and ship products end to end — from architecture and offline data to app-store release and the delivery systems that keep them moving.

I am a Michigan-based full-stack developer specializing in cross-platform mobile and web software. My deepest work is in C#/.NET and .NET MAUI, with React, Python, Azure, SQL, and Linux when a product crosses into web, cloud, or hardware.

Email me Case studies Résumé

The 60-second version

Earl Hayes

Current scope

I am a Senior Software Engineer at WorkWave, focused on application architecture, native iOS and Android development, mentoring, and end-to-end mobile and web delivery. Outside the day job, I am the Founder and Owner of Big Bwain LLC, which currently owns, operates, and produces the mobile apps, web software, open-source tools, and physical products in its public catalog.

AI-assisted delivery

I build internal AI tooling and agents that other engineers use, and I work with LLM-assisted development and design tools, including Claude, alongside testing, release engineering, and direct product ownership. AI-assisted development has dramatically increased my own throughput.

01 / Track record

A delivery record you can verify

Every figure below can be checked against the résumé, a public store listing, or the catalog.

  • Years shipping software

    10+

    One continuous tenure since 2015: Real Green Systems, then WorkWave after its June 2021 acquisition.

  • Live mobile and watch products

    8

    3DCDesign, Your Whey Fitness, Adventure Cache, Cache Creature, Rubetris, Tattoo Finder, Guidlands Watch, and CachePal: Watch Pet.

  • Current store listings

    13

    5 on the App Store and 8 on Google Play, across phones and watches.

  • Public catalog projects

    20

    Live and in-development apps, games, web software, open-source tools, and physical products in the current public catalog.

02 / Career

One continuous path, increasing scope

— Present

Continuous employment that began at Real Green Systems around August 2015 and continued without a break when WorkWave acquired the company in June 2021.

  1. Mobile Software Technical Support

  2. Software QA and Automation Developer

  3. Software Engineer

  4. Senior Software Engineer

    Current

See the full career history

04 / Maker range

Software is not the only output

I design for the physical world too: functional CAD models and 3D-printed products that other people can download, print, and use.

A black 3D-printed truss bridge carrying a red O-scale locomotive on a model railroad layout.
Model Train Truss Combo Design and print details

  • Designs

    Hundreds

    Functional tools, device mounts, gaming gear, jewelry, and model railroading; a selection is published across platforms.

    Published designs

  • Downloads across platforms

    150k+

    Downloads of the published designs across platforms.

    Published designs

  • Former print-shop listings

    50+

    A former catalog of functional prints, geocache containers, decor, and articulated pieces, including prints of other makers' designs.

05 / Technical range

Depth, breadth, and delivery

Core

  • C#
  • .NET
  • .NET MAUI
  • Xamarin
  • ASP.NET Core
  • SQLite
  • SQL

Native, web & tools

  • Swift
  • Objective-C
  • Kotlin
  • Java
  • TypeScript
  • React
  • Node.js
  • Python
  • Linux

Cloud & delivery

  • Azure
  • GitHub Actions
  • CI/CD
  • App Store
  • Google Play

Product practice

  • Architecture
  • Offline-first systems
  • AI-assisted development
  • Release engineering
  • Accessibility

06 / Résumé

Everything on one page

Experience, selected accomplishments, and technical skills on one page. Read it here or download the PDF.

Read the résumé Download PDF

07 / Contact

Get in touch

Email is the direct route for a conversation about a staff-level or architecture role, product work, or a question about something I have shipped.

LinkedIn