Athlean-X
2017—2022Developed a custom Laravel-powered backend with a fully bespoke cart and product system. Optimized for performance, scalability, and user-friendly e-commerce experiences.
- Laravel
- WordPress
- JavaScript
- PHP
Open to opportunities
Nine years shipping production software: a platform serving 100,000+ visitors a day, a multi-tenant SaaS with Stripe Connect, RAG search for AI support, and the government content migration I am working on now.
contact@cevallossystems.comReplies within one business day
- 01Clear communicatorPlain-language updates for product owners, editors and engineers alike.
- 02Nine years of experienceE-commerce at 100k+ daily visitors, enterprise WordPress at Nielsen, and a government content migration.
- 03Owns the outcomeTested, documented work the next developer can pick up without a walkthrough.
Worked for
- Nielsen
- Athlean-X
- Samtek
- Antamba
- Bikerevier
- Island Painting
- 100k+
- daily visitors kept online
- Athlean-X
- +40
- Lighthouse points on client redesigns
- Client sites
- On schedule
- government content migration, in progress
- Samtek, 2026
01 — Career
Where I have worked and what I built there.
Use arrow keys to navigate timeline items
- 01
Samtek
Senior Web Developer (Contract)
Migrating structured content from Contentful into WordPress for a confidential U.S. government agency on an accelerated delivery schedule, with no loss of URLs, accessibility compliance, or editorial workflow.
- 01Built repeatable migration tooling that maps Contentful content models to WordPress post types, ACF fields, and Gutenberg blocks with automated validation
- 02Preserved URL structure, redirects, metadata, and Section 508 / WCAG 2.1 AA compliance on every migrated page
- 03Coordinated phased cutovers with content and QA teams on a compressed, high-visibility timeline
WordPress · PHP · Contentful · TypeScript · Node.js · WP-CLI · +3
- 02
Self-Employed
Freelance Full-Stack Developer
Building production-grade SaaS platforms, AI-powered applications, and analytics dashboards for clients using modern tech stacks including Next.js, NestJS, and AI/LLM integrations.
- 01Built multi-tenant SaaS invoicing platform with Stripe Connect
- 02Architected RAG-powered AI support system with multi-LLM support
- 03Developed real-time analytics dashboard for parking operations
Next.js · React · TypeScript · NestJS · PostgreSQL · Stripe · +2
- 03
Nielsen
Senior Web Developer
Led frontend development for enterprise data visualization platform, creating dynamic Gutenberg blocks and improving performance.
- 01Built custom Gutenberg blocks for data visualization
- 02Improved site performance and accessibility scores
- 03Collaborated with product teams on feature delivery
WordPress · PHP · Alpine.js · Tailwind CSS · Chart.js · Gutenberg
View project - 04
Athlean-X
Full Stack Developer
Managed full-stack development of high-traffic e-commerce and content platforms serving 100k+ daily visitors.
- 01Built scalable Laravel e-commerce systems
- 02Maintained WordPress blog with custom features
- 03Developed progressive web application portal
Laravel · PHP · WordPress · JavaScript · MySQL · Zend Framework
View project
02 — Skills74 tools
Where I excel and how I contribute to teams
Years in the stack
- PHP9 years
- WordPress9 years
- React5 years
- Laravel5 years
- PostgreSQL4 years
- Tailwind CSS4 years
- Next.js3 years
- TypeScript3 years
What I work with
Tools with a case study behind them link to it. The number is how many projects used the tool.
01Frontend15
02Backend11
03CMS & e-commerce8
- WordPress
- WooCommerce
- Gutenberg Blocks
- Advanced Custom Fields
- WP-CLI
- Elementor
- Contentful
- Headless CMS
04Databases8
- MySQL
- PostgreSQL
- Redis
- pgvector
- Qdrant
- Drizzle ORM
- Prisma
- Query Optimization
05AI & ML8
07Integrations8
- Stripe
- Stripe Connect
- Clerk Auth
- Auth.js
- SendGrid
- Google APIs
- Meta APIs
- Webhooks
08Performance & SEO8
- Technical SEO
- Local SEO
- Core Web Vitals
- Structured Data
- Google Analytics
- Google Search Console
- Progressive Web Apps
- Site Migrations
How I work
01
Team collaboration
- Agile/Scrum methodologies
- Code review expertise
- Mentoring junior developers
- Cross-functional communication
02
Problem solving
- Debugging complex issues
- Performance optimization
- Architecture decisions
- Technical documentation
03 — Working style
What I bring to a team and value in a workplace
01
Always learning
Self-taught from the start, and now building RAG pipelines, multi-tenant SaaS and migration tooling.
02
Quality you can measure
Performance and accessibility are checked before anything ships, not after a complaint.
03
Works across teams
Years of working with product owners, designers, editors and QA, including on a compressed government timeline.
04
Ownership
I see projects through to launch and stay accountable for what I built.
04 — Selected work
The three systems behind the numbers above — the traffic, the billing and the retrieval. Each case study covers what it had to handle and how it was built.
Multi-tenant SaaS platform for invoice management with Stripe Connect integration, subscription billing, and merchant onboarding across multiple languages.
- Next.js
- NestJS
- Prisma
- Stripe Connect
Production-grade RAG-powered AI support platform with vector search, multi-LLM support, and intelligent content recommendations for Athlean-X customer support.
- Next.js
- FastAPI
- Python
- Qdrant
Get a detailed overview of my experience, skills, and qualifications.
05 — Contact
Interested in discussing an opportunity? Tell me about the team and the problems you're solving, and I'll get back to you quickly.
contact@cevallossystems.comReplies within one business day