A multi-tenant affiliate/publisher marketing SaaS — first-party click tracking, publisher lifecycle, Stripe billing, and AI fraud detection.
- Laravel
- PHP
- Next.js
- React
- TypeScript
- PostgreSQL
- Redis
- AWS
- Stripe
- Docker
# uptime: 24/7 — always building
Michael DiPerna
mike@portfolio:~$ whoami
Software Engineer · I build systems that hold up at scale.
A software engineer who builds the tracking, billing, and fraud systems that affiliate-marketing platforms run on — and the creator of trackingmd.com.
Selected work
all projects →This portfolioDesigner & Engineer · 2026
A static, statically-hosted personal site built with Astro and shipped to AWS via an automated, keyless pipeline.
- Astro
- TypeScript
- Tailwind CSS
- AWS
- CloudFront
- GitHub Actions
cat ~/work/chargebacks911/*.md
Contract work for an enterprise chargeback/dispute-management platform — client names & internal codenames redacted under NDA. Impact shown; specifics protected.
- Serverless API modernizationNDA
client · codename
Replaced a legacy, end-of-life API with a serverless AWS Lambda service — multi-client database-backed authentication, security hardening, and a zero-downtime cutover.
- AWS Lambda
- PHP
- MySQL
- Observability & cost visibilityNDA
client · codename
Structured logging plus New Relic dashboards and alerting for webhook delivery health — proactive, real-time monitoring that also surfaced reclaimable compute wasted on failing client integrations.
- New Relic
- Symfony
- PHP
- Multi-tenant client portalNDA
client · codename
Client-portal self-service enrollment plus an automated, cross-system provisioning pipeline that replaced a fully manual process.
- Symfony
- PHP
- MySQL
- API documentation portalNDA
client · codename
Rebuilt the customer-facing docs experience: per-customer gating behind recorded agreements, admin reporting, a webhook troubleshooting console, and an automated test/CI pipeline.
- Symfony
- PHP
- CI/CD
- Microservices consolidationNDA
client · codename
Single-sourced the data model across distributed microservices and migrated integrations off a legacy platform, retiring legacy jobs as replacements went live.
- Symfony
- PHP
- Microservices
About
I’m a software engineer working in the affiliate‑marketing SaaS space. I focus on the unglamorous parts — attribution, billing, payouts, fraud, multi‑tenancy — and getting them right so they hold up at scale.
Most recently I built trackingmd.com, a multi‑tenant platform for running publisher/affiliate programs: first‑party click tracking that survives third‑party‑cookie loss, Stripe‑based billing and payouts, and an AI fraud‑detection layer, all on a schema‑per‑tenant Laravel + Next.js stack deployed on AWS.
Experience
Chargebacks911·Software Engineer (Contract)·Mar 2019–present·Clearwater, Florida
- + Deliver ~14 concurrent projects a year across three stacks (Symfony, Laravel, and a legacy framework) while carrying continuous production operations for an enterprise chargeback/dispute-management platform, coordinating across multiple engineering teams.
- + Optimized a high-volume orders API for database concurrency — a production-verified ~40× reduction in lock-wait timeouts — for smoother, more reliable performance under peak load.
- + Built production observability — structured logging plus New Relic dashboards and alerting for webhook delivery health — giving the team real-time, proactive visibility into delivery health and surfacing reclaimable compute from failing client integrations.
- + Shipped a serverless AWS Lambda replacement for an end-of-life API — multi-client database-backed authentication, security hardening, and a zero-downtime cutover.
- + Consolidated data models and gateway/scheduled-job integrations across distributed microservices into single sources of truth, retiring legacy platforms as their replacements went live.
- + Adopted AI-assisted development as a daily practice — self-funded ahead of company provision — for faster root-cause diagnosis and proactively hardened system integrations.
Freelance·Web Developer & SEO·Jul 2025–present·Remote
- + Build, host, and maintain websites for multiple local small businesses — design, hosting, and ongoing updates.
- + Run their SEO — technical SEO, on-page content, and local search visibility.
AffTrack Inc·Software Engineer → Marketing Manager·Feb 2014–Mar 2019·Spring Hill, Florida
- + Evaluated, selected, and planned new features and bug-fixes for a high-volume affiliate tracking platform handling 7+ billion transactions per month.
- + Built and tested 40+ external API integrations (REST, SOAP, XML) in a push to fully automate client service.
- + Directed the development team's daily work and owned direct client contact and support — progressing from Software Engineer to Marketing Manager in 2016.
- + Installed, upgraded, and maintained physical servers and equipment in co-located data-center facilities.
- Stack — PHP · MySQL (Galera, MemSQL) · JavaScript / jQuery · Linux · Nginx · Git.
Education
- B.S. Computer Information Systems · Saint Leo University
Skills
~/skills
├── Languages
- TypeScript
- PHP
- JavaScript
- SQL
- Python
├── Frameworks
- Laravel
- Symfony
- Next.js
- React
- Astro
- Tailwind CSS
├── Cloud & Infrastructure
- AWS
- AWS Lambda
- Docker
- PostgreSQL
- Redis
- GitHub Actions
- S3 / CloudFront
- New Relic
└── Practices
- CI/CD
- Infrastructure as Code
- Automated Testing
- Test-Driven Development
- Observability
- Multi-tenancy
- Microservices
- API integration
- AI-assisted development
- SEO
Contact
- linkedin.com/in/michaeldiperna
- github
- github.com/dipernamike
# or just: sudo hire-me