AustinOpia.

Back-end and AI engineering for a multi-product agency: Laravel 11 services, production RAG, LLM integrations and the automation that keeps operations reliable.

• Designed and implemented REST/GraphQL APIs in PHP 8.x and Laravel 11 across multiple production services
• Architected a production RAG pipeline on Pinecone with confidence-threshold fallback and queue-backed processing for enterprise AI workflows
• Integrated OpenAI, Anthropic (Claude), ScaleSERP and Veo into Laravel services — AI endpoints for chat and semantic search with 80%+ test coverage

Led the frontend build of Payurus, a Vue 3 + Vite digital wallet PWA — multi-currency accounts, cards and payments, offline-ready.

• Led frontend build of Payurus: reusable layout shells, action sheets and multi-currency account views across dashboard, card and payments hubs
• Implemented localised Composition-API UI flows with Vue I18n and dynamic routing, ready for future language expansion
• Engineered an offline-ready service-worker pipeline with Workbox, remote configuration caching and proxy rewriting so the app adapts to active back-end endpoints

Built and scaled a multi-tenant SaaS platform on Laravel and the TALL stack, powering enterprise workflows for 100K+ users at 99.9% uptime.

• Built scalable multi-tenant SaaS platform using Laravel and the TALL stack, powering enterprise workflows for 100K+ users with 99.9% uptime
• Reduced API latency by 70% via Redis caching, Laravel Octane migration and Horizon queue optimisation — cutting AWS EC2 costs
• Built secure authentication layer with Laravel Sanctum + JWT managing 50K+ users, with role-based access control and audit logging

Led a 6-member team building an enterprise e-learning platform on Laravel + Moodle — SSO, Stripe billing, real-time collaboration and analytics for 2,000+ concurrent users.

• Led development of an enterprise e-learning platform on Laravel + Moodle, integrated with SSO, Stripe and advanced analytics, serving 2,000+ concurrent users at 99.99% uptime
• Developed custom Moodle–Laravel integration modules for advanced learning workflows including grade sync and content provisioning
• Implemented Stripe-based subscription model with webhook processing, dunning management and tiered user access

Developed a crypto-enabled ecommerce app with Laravel, Vue and smart-contract integrations, handling 1M+ transactions a month.

• Built REST APIs powering 1M+ transactions/month using Laravel Cashier and Web3 wallet connect, with idempotency and retry logic for financial data integrity
• Integrated NFT access logic and smart-contract event triggers with Metamask and Web3.js, enabling token-gated product access
• Reduced API response time by 70% using Laravel Octane and database sharding across multiple MySQL nodes

Developed the internal ERP powering logistics, orders and inventory for a growing ecommerce company.

• Developed internal ERP system powering logistics, orders and inventory
• Spearheaded modular Laravel packages for inventory, vendor and accounting systems, improving reusability and scalability
• Built dynamic Laravel Nova admin dashboards with role-based access for operations teams

Built B2B SaaS platforms for education and client management — a multi-tenant Moodle + Laravel LMS for 2,000+ active learners.

• Built B2B SaaS platforms for education and client management, architecting a multi-tenant LMS with Moodle, Laravel, Vue.js and PHP 7 supporting 2,000+ active learners with MySQL databases handling 10,000+ daily reads
• Integrated APIs and Stripe payment processing, enabling streamlined client management and secure handling of 1M+ transactions annually
• Configured and maintained AWS cloud infrastructure including server security hardening; managed multiple projects to on-time delivery with comprehensive documentation