Oleksandr S.

Senior Backend & Automation Engineer | Laravel PHP Python APIs AWS

I help businesses build, stabilize, and automate production web systems. My work usually involves an existing application, complex backend logic, third-party APIs, infrastructure, or automation that needs an experienced engineer to understand the system quickly and deliver a reliable solution. I work across: • PHP, Laravel, and MySQL backend systems • Python and FastAPI services • REST APIs, webhooks, OAuth, and third-party integrations • Node.js, TypeScript, Puppeteer, and browser automation • Selenium and multi-session automation workflows • AWS, DigitalOcean, Linux, Nginx, Cloudflare, DNS, and SSL • SaaS architecture, multi-tenant systems, and backend orchestration • Stripe, payment, shipping, CRM, and transactional email integrations • WordPress and WooCommerce custom development and stabilization • Legacy application debugging, migrations, and production recovery Recent projects include production FastAPI services with RBAC and API workflows, Python/Selenium multi-session browser automation, Node.js/Puppeteer data and PDF workflows, Laravel/Vue business applications, API integrations, and migration of live e-commerce infrastructure to AWS. I am often brought into projects where the application already exists but the architecture, integration, deployment, or production stability has become difficult to manage. My approach is straightforward: • understand the existing system • identify the real technical problem • define a practical implementation plan • build or fix the required components • test the critical workflows • document the solution Upwork: → $50K+ earned → 100% Job Success → Top Rated → 1,100+ hours → 40+ completed projects Core technologies: #PHP #Laravel #Python #FastAPI #NodeJS #TypeScript #VueJS #MySQL #PostgreSQL #RESTAPI #Selenium #Puppeteer #AWS #DigitalOcean #Docker #Cloudflare #Linux #Git #CICD #WordPress #WooCommerce I work best with founders, product teams, and businesses that need a senior engineer who can take ownership of an existing technical problem and move it toward a stable, maintainable solution.