Patrick
Lehmann
About Me
Adaptable full-stack engineer who thrives in dynamic environments
The Art of Adaptation
Over 6+ years, I've learned that the best engineers adapt quickly to change. Tech stack migrations, shifting business requirements, legacy system overhauls - I've handled them all and consistently delivered working solutions.
At Global Payments, I've worked across three different teams: started on Heartland Retail Online adding e-commerce capabilities to the POS system, moved to Heartland Retail POS working with the legacy Backbone.js codebase, and now I'm on Genius Retail POS handling Pendo Analytics, OneTrust integration, Angular microfrontends, and UK/Ireland market expansion. Each move taught me how to quickly understand new codebases and make different technologies work together.
🎯 Beyond Code
- • Disc golf strategy & precision
- • Christian study & apologetics
- • Family time with Hillary and Adeline
- • Cross-team mentoring
- • Process optimization
The Disc Golf Connection
Disc golf taught me patience and precision - skills that transfer directly to debugging code. Both require reading the situation, adapting to obstacles, and executing under pressure. Sometimes the best solution isn't the obvious one.
Optimizing the Developer Lifestyle
Sitting at a desk all day takes a toll, so I've gotten into optimizing the developer lifestyle: meal prepping for sustained energy, taking movement breaks during long coding sessions, and using the 20-20-20 rule for eye health. Same attention to detail I put into code, applied to staying healthy and sharp.
Lehmann Dev Mix
My curated playlist for deep focus coding sessions. The right soundtrack makes all the difference when debugging complex problems or architecting new features.
What Drives Me
Quick Stats
Professional Experience
6+ years of adaptability across multiple teams, technologies, and business domains
🚀 Currently Working On
Global Payments Inc.
Genius Retail POS
January 2025 - PresentHeartland Retail POS
January 2024 - January 2025Heartland Retail Online
April 2022 - January 2024Homes.com
Full-Stack Development
January 2019 - April 2022Adaptability in Action
Successfully navigated 3 different teams and tech stacks at Global Payments, demonstrating consistent ability to deliver value through organizational change.
Want to Learn More?
Download my resume for a complete overview of my experience and skills.
Technical Skills
Modern full-stack technologies with a focus on scalability and maintainability
Languages
Core programming languages I use daily
JavaScript
6+ yearsTypeScript
6+ yearsC#
4+ yearsSQL
6+ yearsFrameworks
Modern frameworks for building robust applications
Bootstrap
6+ yearsExpress.js
6+ yearsHapi.js
6+ yearsNode.js
6+ years.NET
4+ yearsReact
6+ yearsASP.NET Core
4+ yearsAngular
2+ yearsMaterial-UI
2+ yearsInfrastructure & DevOps
Infrastructure and deployment expertise
CI/CD
4+ yearsDocker
3+ yearsGitHub Actions
3+ yearsLinux
6+ yearsNginx
5+ yearsAWS
3+ yearsAWS Lambda
2+ yearsKubernetes
6+ yearsAzure
1+ yearDatadog
1+ yearTerraform
1+ yearDevelopment Tools
Essential development and workflow tools
Git
6+ yearsnpm
6+ yearsPostman
6+ yearsSwagger/OpenAPI
6+ yearsVS Code
6+ yearsJest
5+ yearsVisual Studio
4+ yearsBash
4+ yearsData & APIs
Database and API integration technologies
REST APIs
6+ yearsMongoDB
6+ yearsSQL Server
6+ yearsMySQL
5+ yearsAmazon SQS
2+ yearsFirebase
2+ yearsRabbitMQ
2+ yearsRedis
2+ yearsDevelopment Practices
🤖 AI-Forward Development
Embracing modern AI tools to enhance productivity, code quality, and team collaboration while maintaining engineering best practices
Key Projects
Professional achievements showcasing technical leadership and business impact
Enterprise Analytics Integration
Led full-stack implementation of Pendo Analytics and OneTrust Cookie Consent across enterprise portal, integrating with Angular microfrontends and backend systems.
Enhanced user experience tracking across entire platform
Key Highlights
- Full-stack implementation from UI to database
- Cross-team collaboration and expertise leveraging
- First-time-right delivery methodology
Technologies
E-commerce POS Integration Platform
Developed comprehensive features integrating e-commerce systems with point-of-sale solutions, enabling seamless omnichannel retail experiences.
Streamlined retail operations for thousands of merchants
Key Highlights
- Backend to full-stack role evolution
- CI/CD pipeline optimization
- Complex system integration management
Technologies
Legacy System Modernization
Architected and led migration from monolithic ColdFusion system to scalable Node.js microservices architecture, improving system performance and maintainability.
Reduced system complexity and improved scalability
Key Highlights
- Monolithic to microservices transformation
- Cross-platform technology transition
- Database integration and optimization
Technologies
Legacy Codebase Maintenance
Maintained and enhanced complex legacy system with React.js class components within Backbone.js views, delivering critical stability improvements.
Ensured system stability while managing technical debt
Key Highlights
- Technical debt management
- Critical bug resolution
- System stability improvements
Technologies
Consistent Value Delivery
Each project demonstrates my ability to adapt to new technologies, collaborate across teams, and deliver meaningful business impact regardless of technical complexity or organizational changes.
Discuss Your Next ProjectArticles & Insights
Exploring AI collaboration, work-life balance, faith-driven development, and lessons learned from modern software engineering
Get In Touch
I enjoy connecting with fellow developers, discussing technical challenges, and exploring interesting projects. Feel free to reach out if you'd like to chat about technology, share ideas, or collaborate.
Let's Talk Code
Got a tricky legacy system that needs untangling? Working on a modern architecture challenge? I enjoy discussing technical problems and sharing what I've learned along the way.
Built with Next.js, TypeScript, and Tailwind CSS •Demonstrating modern development practices