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Austin Opia

@austinopia

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Senior PHP engineer at Geeks For Growth; built a production RAG pipeline and multi-provider AI integration layer.

Nigeria

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At Geeks For Growth, I designed REST and GraphQL APIs with PHP 8.x and Laravel 11, and built a shared integration layer for text and image generation providers. I also architected a production RAG pipeline with Pinecone, confidence-threshold fallback, and queue-backed processing.

At TedBree, I reduced API latency by 70% through Redis caching, a Laravel Octane migration, and Horizon queue optimisation. I built a multi-tenant SaaS platform serving 100K+ users and led a PHPUnit/Pest TDD strategy that achieved 95% code coverage.

Earlier, I built REST APIs handling 1M+ transactions a month at Tezda Ltd, using idempotency and retry logic for financial data integrity. My projects include concurrency-safe wallet transfers and event-driven Laravel services; I also mentor developers through code reviews.

Experience

Work history, roles, and key accomplishments

Current

Senior Engineer - Backend & Frontend AI Integration

Current

Geeks For Growth

Jan 2025 - Present (1 year 9 months)

Designed and implemented REST/GraphQL APIs with PHP 8.x and Laravel 11, built a provider-integration layer for AI services, and architected a production RAG pipeline with Pinecone. Mentored junior developers and maintained CI/CD pipelines.

PHP Laravel REST GraphQL TypeScript Claude OpenAI Gemini Pinecone RAG CI CD Docker Hetzner

Senior Frontend Engineer - Lead PWA Engineer

Virgosoft

Sep 2025 - Jan 2026 (4 months)

Led frontend architecture and build of Payurus, a Vue 3 + Vite digital wallet PWA, established modern frontend tooling, and engineered offline-ready service worker pipelines.

Vue3 Vite TypeScript Vitest Pinia Tailwind Workbox VueI18n

Senior Laravel & Full-Stack Engineer - SaaS Platform

TedBree

Jan 2023 - Dec 2025 (2 years 11 months)

Reduced API latency by 70% via Redis caching, Laravel Octane, and Horizon queue optimisation. Built a scalable multi-tenant SaaS platform on the TALL stack and led a TDD strategy achieving 95% code coverage.

Laravel Redis Octane Horizon PHPUnit Pest Docker GitHub Actions Sanctum JWT RBAC Audit Logging Pulse Pennant Scout

Senior Technical Lead - EdTech LMS

Edusi

Jan 2021 - Dec 2022 (1 year 11 months)

Led a 6-member team building an enterprise e-learning platform on Laravel and Moodle, integrated with SSO, Stripe, and analytics. Created reusable packages and implemented real-time event broadcasting.

Laravel Moodle Stripe SSO Analytics Laravel Echo Pusher Package Development

Full Stack Laravel Developer - Web3 Ecommerce Platform

Tezda Ltd

Jan 2019 - Dec 2020 (1 year 11 months)

Refactored a legacy PHP monolith into domain-driven microservices, built REST APIs handling 1M+ transactions per month, and developed a crypto-enabled ecommerce application with smart contract integrations.

Laravel PHP REST Microservices Octane Sharding Cashier Web3 Vue.Js Smart Contracts MetaMask Web3.js

Laravel Developer - Ecommerce Internal ERP

Maxibuy

Jan 2018 - Dec 2019 (1 year 11 months)

Practised TDD with PHPUnit and enforced SOLID principles. Spearheaded modular Laravel packages for inventory, vendor, and accounting systems, and built dynamic Laravel Nova admin dashboards.

Laravel PHPUnit Test Driven Development SOLID Nova PDFLib Chart.Js ERP

Full Stack & Lead PHP Laravel Developer - B2B SaaS & Analytics

AdapIT & Datazen

Jan 2016 - Dec 2018 (2 years 11 months)

Refreshed the enterprise analytics frontend for Datazen with Vue 3 and TypeScript, configured AWS infrastructure, and built B2B SaaS platforms for education and client management.

Laravel Vue3 TypeScript AWS Lambda MySQL Stripe Multi Tenant LMS