Dennis Palmer

• Designing robots in OpenSCAD, 3D-printing and assembling them, and controlling them with Elixir on Nerves or AtomVM.
• Validating and prototyping SaaS products.

PepsiCo

• Worked on the Pepdirect platform used by PepsiCo brands.
• Helped build backend support for the Gatorade loyalty program.
• Implemented support for tracking all emails sent by Pepdirect and added the ability to resend unique emails.
• Added GraphQL mutations to support subscription editing features.

Swiss Fintech Startup

• Built a Phoenix LiveView application to support creating and coordinating blockchain mining pools.
• Developed and maintained CI/CD using Gitea Actions (GitHub Actions–compatible).

Cars Commerce

• Built a proof of concept for the rewrite of newcars.com in Elixir and Phoenix.
• Integrated with the existing service to call third-party APIs to deliver new car buyer leads.
• Implemented an Oban Pro workflow whose steps record data for use by later steps.

Remote.com

• Created several Honeycomb.io reports for real-time monitoring and alerting on critical payroll integrations with a third-party vendor.
• Enabled custom pay elements for payroll in Canada as payroll processing moved in-house.

• Built the front-end for an application that helps corporations manage international trade finance transactions.
• Facilitated team standups and retrospectives.
• Maintained the CI/CD pipeline using GitHub Actions and Kubernetes.
• Helped foster inter-team communication.

• Introduced Elm and SignalR for use in creating a fast, responsive SaaS application that enables clients to analyze business processes and accelerate automation via the company's flagship product.
• Led the effort to integrate Veracode static and dynamic scans into the Jenkins CI/CD pipeline and coordinated efforts across multiple product teams to mitigate security flaws found by those scans.

• Integrated the company's analytics platform with third-party applications and data sources such as OpenFinance and Bloomberg.
• Mentored junior developers.

• Implemented a TeamCity CI server to greatly improve speed, efficiency, and quality of automated builds and unit/integration test runs.
• Used SQL Server ScriptDom and Visual Studio T4 templates to generate code that standardized calls to stored procedures.
• Led the project to replace a Flex/Flash-based admin dashboard with an HTML5 single-page application (TypeScript and Angular) using SignalR for real-time push notifications.

Dean's List. Staff Photographer for newspaper and yearbook.

The US-based Nerves Meetup was in the middle of the night, so a group of us launched an online meetup that meets at a European-friendly time.

There wasn't a polyglot functional programming user group in the Dallas area, so I started the group that I wanted to attend. It was great to see people come together who were eager to learn and share what they had been learning.

• Shared my history of building robots and the lessons learned from a failed attempt to build a self-balancing robot.
• Explained the process of designing 3D parts with code in OpenSCAD.
• Demonstrated the power of binary pattern matching for reading sensor data.
• Showed a Livebook animation of the physical robot's balance state.

• Explained the limitations of traditional approaches to shrinking and how internal shrinking overcomes them.
• Demonstrated Decorum, an Elixir property-based testing library with shrinking that just works.

What is your response when looking at someone's code that's not as good as you think it should be?