About Me

What Makes Me Tick?

Good Morning Duane!

I am a Principal iOS Engineer and Software Architect specializing in modern Apple platform engineering. With a background in Full-Stack Development and large-scale systems, I design and build high-performance applications from architecture to publication, transforming complex ideas into scalable, maintainable, and polished user experiences.

I enjoy building software that balances technical precision with thoughtful user experience. My engineering approach emphasizes craftsmanship, long-term maintainability, and clean architectural design while still keeping development creative and enjoyable.

My professional approach is centered around accountability, honesty, craftsmanship, adaptability, and long-term thinking. I value clean execution, thoughtful planning, and delivering solutions that are both technically sound and maintainable over time.

I am analytical, detail-oriented, adaptable, and highly focused on solving complex technical challenges. I work well independently but also thrive in collaborative engineering environments where architecture, execution, and long-term product quality matter.

My Education: My education combines both theoretical and applied aspects of programming, equipping me with the knowledge to design and implement cutting-edge solutions. I continuously seek to expand my expertise through research, experimentation, and staying up to date with the latest advancements in technology.

Brigham Young University (BYU)
BSCS (Credits toward Degree)
1987-1988

Heald Institute of Technology
BSCS (Credits toward Degree)
1989-1990

Cisco Certified Network Associate (CCNA)
1998

Microsoft Certified Solutions Developer (MCSD)
1999

Microsoft Certified Database Administrator (MCSD)
2000

Other Training Seminars, Conferences, Bootcamps, WWDC, etc.
Too many to mention. 2017 - 2018

My Career

Never Work a Day in your Life!

$10M

Contract Won

Sole engineer who won a $10M Cisco Systems contract as Software Sales Engineer at HarmonyCom — which Cisco later acquired.

$600K

Revenue Saved

Identified and fixed revenue-leaking code at MCI Worldcom, stopping $50,000 per month in losses — totaling over $600K recovered.

Peak Achiever

MCI Award

Received MCI's most prestigious company award for flawlessly shutting down one of the first commercial email services in history.

I have an extensive background writing code under Apple, Microsoft, and Java environments. However, right now I work extensively within Apple's ecosystem, developing applications for iOS, iPadOS, and macOS.

I am often recognized for my ability to adapt across technologies, architectures, and engineering environments. I adapt in most environments easily.

A Brief History: With years of experience in software development, I have built a strong foundation in Swift and SwiftUI, focusing on clean, efficient, and maintainable code. My journey has been marked by a commitment to refining my skills, solving real-world problems, and contributing to meaningful projects that enhance user experiences. I graduated high school at 17 and immediately began attending Brigham Young University (BYU) in Idaho. After about 4 years I started receiving multiple compelling job offers.

I took a job with Rockwell International as a Field Service Engineer. One of my responsibilities was to field test software patches brought out by Software Engineering. Those guys hated me because I would find problems or errors with their code every single time.

As a result, I became very interested in Software Engineering and accepted a promotion as a Software Engineer. I started off by writing shell scripts and progressed to coding in C and C++ under Unix.

One day I was informed that it was impossible to have a PC emulate Rockwell's proprietary hardware. I began working on a proof of concept project for that idea.

When that was successful I was offered a promotion in the Chicago office to head up that endeavor. I had to turn down that position for family reasons. I was then offered to be transferred to the Hawaii office. I also turned down that offer for the same reason. To this day that was one of my biggest regrets... Heck, I could have been coding on the beach every day.

Many years later I went to work with DSC/Alcatel communications and traveled installing and/or implementing software. I established the practice of installing software remotely instead of incurring the expense to travel.

Then I received an offer from MCI WorldCom and started getting into Web Development and more Software Development. I implemented new code for all company websites/intranets. I created and updated many scripts and C applications under Unix. Eventually I migrated to Visual Basic, C++, and C#. That period significantly expanded my experience across enterprise software systems, web technologies, and large-scale application development.

Most Proud Of: One of my proudest achievements is my ability to solve complex problems while maintaining clarity and simplicity in execution. I take pride in crafting solutions that not only meet technical requirements but also provide seamless and intuitive user experiences.

MCI Email Services. While employed by MCI my manager Don Johnson asked for a volunteer to shut down a legacy system known as MCI Mail. No one wanted to do it and so I volunteered.

I did not realize at the time how historically significant that transition would become. The transition was flawless and went according to schedule. I was awarded the MCI most coveted "Peak Achiever" award. I am proud to be the one who shutdown one of the first ever commercial email service!

Updated Company Software. Also while I was working for MCI Worldcom, I was assigned to systematically go through old code in the MCI libraries and update it. This was quite a challenge but I also took the opportunity to make comments in code so that we could troubleshoot it easier in the future.

Saved Company $600K. Again, working for MCI Worldcom, I found errors in code where our company was losing potential revenue of $50K per month. I made necessary changes and the revenue loss stopped. Very proud moment for me!

$10M Contract Awarded. While working for a startup telecom company called HarmonyCom I held the position of "Software Sales Engineer". My first year I was the Engineer responsible for winning a contract with Cisco Systems worth over $10M. HarmonyCom has since been bought out by Cisco.

SKILLS: My expertise includes working with diverse technologies like Swift, SwiftUI, Java, Kotlin, etc. My focus is on the iOS development with a strong focus on UI/UX design, animation, and performance optimization. I specialize in building dynamic and responsive applications, leveraging Apple Cores, technologies, and 3rd party APIs or SDKs. The following highlights a broad range of technologies and platforms I have worked with throughout my engineering career...

I excel at quickly mastering new skills and concepts. Here is a list of some of the abilities I have developed:

TECHNOLOGY

EXPERIENCE

Swift

7+ Years

UIKit, Swift SDKs

7+ Years

SwiftUI

7+ Years

Objective-C

7+ Years

Cocoa, Ruby, Python

4+ Years

Java, Kotlin

3+ Years

C, C++, Dart

10+ Years

SQL, SQLite

3+ Years

MSSQL, MySQL

10+ Years

HTML, CSS

10+ Years

JQuery, Ajax

10+ Years

Javascript

10+ Years

PHP, Perl

10+ Years

ASP/VB/C#.net

10+ Years

GIT, Agile

10+ Years

Some Last Words: One of my proudest achievements is my ability to solve complex problems while maintaining clarity and simplicity in execution. I take pride in crafting solutions that not only meet technical requirements but also provide seamless and intuitive user experiences.

I am often called to work as the sole Software Engineer or Architect on a project. While this is stimulating and exciting I also thrive in a team environment equally.

I am comfortable in mentoring others but humble enough to learn from anyone. I don't claim to know everything but I am really good at finding answers.

I enjoy solving difficult technical challenges, mentoring others, and building scalable systems that combine strong architecture with polished user experiences. I continue to approach engineering with curiosity, adaptability, and a commitment to delivering high-quality software solutions.

Rapid prototyping, proof-of-concept development, and iterative problem solving are core parts of my engineering process.

Recent Projects

Building Modern Apple Platform Experiences

I enjoy building modern software solutions that combine strong architecture, performance, and thoughtful user experience.

Much of my work is confidential and cannot be disclosed due to non-disclosure agreements. However, I am in the process of making them available. Coming soon when i have time...

CrumbTrails

This app tracks your path by dropping breadcrumb markers on a map, visually displaying your route as you walk or travel. Like the fairy tale: "Hansel & Gretel".

This App is interactive and provides real time information as you travel. Full of cool features, like speedometer, weather on demand, mark my spot, etc. You always control when you are dropping crumbs on the map. The App is completely configurable and has built in battery saving features because having GPS on uses up a lot of battery.

HealthDiff

A health analytics app for iOS that visualizes trends and differences in Apple Health data over time — helping users track fitness, vitals, and wellness metrics with clarity and precision.

In Development — iOS • Swift • HealthKit

Resipes

A modern recipe manager for iOS built around the way people actually cook — supporting ingredient scaling, smart shopping lists, and a clean SwiftUI interface designed for use in the kitchen.

In Development — iOS • SwiftUI • CloudKit

Testimonials

Working Hard To Get Noticed

Don Johnson

MCI WORLDCOM, SAN JOSE, CA.

Duane doesn't miss much, he is an extremely detail orientated person! With his leadership most of the projects have been successfully implemented and completed. I am pleased to announce he will be receiving the "Peak Achiever" award, our most prestigious company award.

Jose Rodriguez

DSC CORP, ALCATEL, PLANO, TX.

His advice was crucial to the successful completion of software installations through out the USA. I can count on Duane to complete projects on time and under budget every time. Over the last 3 years he has never let me down. I am sorry to see him go but I personally recommend Duane.

Cheryl Hefferon

M&T BANK, BUFFALO, NY.

Duane is simply wonderful! I hired him as a contractor and consultant to evaluate my banking application project. Duane saved my reputation on multiple occasions. On one occasion my project lead was delaying and not meeting our deliverables.

The following Monday, and I remember it well, my project leader was a no show at our weekly project meeting. To my surprise, Duane had spent the previous weekend on his own time and delivered the proof of concept for the project as well as his part of that project.

I terminated the existing Project Leader and promoted Duane to the Project Leader position. Duane continued to demonstrate his abilities and exceed my expectations by developing an entire suite of products. I personally recommend Duane for any software engineering position!

Joseph Poturalski

LACTALIS AMERICAN GROUP, BUFFALO, NY.

Duane has always displayed a high degree of Integrity, Responsibility, and Ambition. He is definitely a Leader rather than a Follower.

In addition to his good work ethics, his skills are excellent. Duane is team player, exhibits good judgement, and has a positive outlook when approaching any challenge.

Duane would be an asset to any organization!

Contact Me

About Me

My Career

Recent Projects

CrumbTrails

HealthDiff

Resipes

Testimonials

Don Johnson

MCI WORLDCOM, SAN JOSE, CA.

Jose Rodriguez

DSC CORP, ALCATEL, PLANO, TX.

Cheryl Hefferon

M&T BANK, BUFFALO, NY.

Joseph Poturalski

LACTALIS AMERICAN GROUP, BUFFALO, NY.

Thank You!