8+ years · Fintech · Government · Healthcare

Senior Software Engineer building systems that matter.

From saving lives as a firefighter and EMT to building compliant, high-quality systems at scale. I bring calm under pressure, clear communication, and end-to-end ownership to every team I join.

8+
Years building software
6+
Industries served
End-to-end
Architecture to production
David Duron in a suit

FirefighterEMTEngineer

What I bring

Why companies hire me

Senior-level ownership, fast ramp-up, and the calm of someone who has worked in high-stakes environments.

8+ Years

Building greenfield applications, delivering application modernizations, building authentication and authorization.

Fast Ramp-Up

I dive into complex environments, quickly learn the codebase and business domain, and start making meaningful contributions early in the project.

Team Multiplier

I enjoy helping other engineers grow through mentoring, collaboration, and peer programming. I'm also writing a book to help professionals make successful transitions into second careers in technology.

Global Collaboration

I work directly with stakeholders and distributed teams to translate business and compliance requirements into clear technical solutions while keeping everyone aligned through delivery.

Engineering Quality

Good engineering isn't just about the code I write. I want the team to have better documentation, better practices, shared knowledge, and fewer dependencies on any single person.

Accountability

I take ownership from requirements through production. That means understanding the problem, defining the solution, coordinating implementation, validating the result, and making sure the feature works when it reaches production.

Working principles

How I approach engineering

The habits and standards I bring to every team and codebase.

01

Understand Before I Build

I start by understanding the business requirement, the underlying problem, and the desired outcome. Aligning all three helps ensure we're solving the right problem and spending the company's time and resources wisely.

02

Build a Healthy Culture

Complexity shouldn't exist simply because it's fashionable. I believe in clear documentation, practical development standards, and creating an environment where engineers can question unnecessary complexity and improve how we work.

03

Build for the Company

I take pride in my work, but I never forget that the code belongs to the company. I build systems that are straightforward, maintainable, scalable, and easy for the next engineer to understand and extend.

The path here

Work history

Two careers, one throughline: staying calm, making decisions, and owning the outcome.

  1. David as a firefighter, 2009 to 2012

    2009 – 2012

    Firefighter

    Built the discipline, teamwork, and urgency that set me apart.

  2. David as an emergency medical technician, 2012 to 2018

    2012 – 2018

    Emergency Medical Technician

    Learned how to make the right decisions with little to no room for error in high-stakes situations.

  3. David as a software engineer, 2018 to present

    2018 – Present

    Software Engineer

    Using the skills I learned as a firefighter and EMT (plus a little creativity) allows me to deliver results — not excuses.

Recent work

Selected projects

Systems delivered across fintech, government, healthcare, and insurance.

Fintech · Payments

The Money Service Lab

  • Design and develop microservices and REST APIs supporting payment processing and SaaS products across fintech and government technology domains.
  • Design and implement event-driven services and integrations for distributed applications, focusing on scalability, reliability, and maintainability.
  • Own end-to-end technical delivery across frontend architecture, backend services, UI/UX, cloud infrastructure, and application architecture.
  • Implemented GDPR, PCI-DSS, SEPA, EU, and vendor compliance for Mastercard Digital Enablement Service (MDES), Google Pay, and Apple Pay.
Microservices REST APIs Payments Compliance

Government · Modernization

M2 Systems Corporation

  • Led modernization of a Java 6 application ecosystem into a .NET and NextJS platform, architecting permission-based authorization and a hybrid JWT/session authentication architecture.
  • Delivered within a six-month deadline as part of a four-person team, owning critical application architecture and security functionality through production.
  • Mentored others and drove positive cultural changes that resulted in 20% less ticket time.
  • Became subject-matter expert and technical owner of a business-critical application.
Go Angular Auth Modernization

Insurance · Security

Summit Workers Comp Payment

  • Brought on to support a time-sensitive full-stack project, owning design and implementation of authentication and authorization.
  • Developed security components across an NextJs frontend and .NET backend, integrating access control with existing services.
  • Implemented authorization logic and user-access controls backed by DB2 and integrated with the company's midrange environment.
  • Ensured seamless integration with the event-driven architecture and microservices (payment, insurance quoting, sales, and more).
  • Collaborated with the team to integrate security into the broader application while meeting a strict delivery deadline.
Angular 19 Java 17 DB2 Security

Healthcare · Telehealth

Victoria's Voice Foundation VVF (Sapphire Health)

  • Collaborated with stakeholders to implement features and bug fixes for a multi-tenant e-commerce telehealth web application.
  • Implemented features end-to-end across frontend, APIs, and database, working closely with senior engineering and UI/UX.
Telehealth Multi-tenant Full-stack

Healthcare · Serverless

Kiaora (Sapphire Health)

Shares the same codebase as VVF.

  • Built and maintained Azure Functions and implemented quick-link authentication and support-user workflows.
  • Created support-user workflows that reduced lost sales by 15% and increased recurring prescription sales by 35%.
Azure Functions Auth Workflows

Healthcare · EHR

Advanced Correctional Healthcare

  • Lead developer for modernization of an eMAR system to Azure cloud-native EHR; modernized a legacy SharePoint application to .NET 6 Web API and NextJs
  • Built HL7 integration for vendors including radiology and pharmacy.
  • Implemented database design to ensure multi-tenancy.
  • Designed authorization and authentication using MS Identity and Entra ID.
  • Present and collaborate directly with stakeholders to ensure delivery of the MVP EHR.
.NET 6 Vue 2 Azure HL7

Open to meaningful conversations

Let's talk about what you're building.

I'm not actively looking, but I'm always open to conversations about impactful work.