Oleksandr S.

I’m a experienced and certified full-stack developer with 10+ years of experience building and evolving production applications for both fast-moving startups and large enterprise organizations. I’ve worked across fintech, insurance, and healthcare, where products often combine complex business logic, integrations, large data flows, background processing, performance requirements, and systems that need to stay reliable in production. That range matters. In startups, I’m used to moving quickly, owning broad areas of the product, and making practical decisions with limited resources. In enterprise environments, I’ve worked with larger teams, established systems, stricter processes, and applications where reliability and long-term maintainability carry much more weight. I’m primarily looking for long-term work where I can become part of the team, own significant parts of the application, and contribute to architecture, technical decisions, and ongoing product development. My strongest backend stack is Laravel and PHP. I’ve built APIs, SaaS platforms, integrations, internal systems, complex business workflows, and high-volume background processing. I’m equally comfortable building something new or stepping into a mature codebase and understanding how it works before changing it. Some examples of the scale I’ve worked with: Laravel processing systems handling around 450,000 jobs per hour API and database optimization reducing response times from around 30 seconds to under 1 second Production systems across fintech, insurance, healthcare, and ecommerce with complex integrations and business logic Craft CMS is another deep specialty. I’ve worked with Craft on custom applications, ecommerce, multi-site platforms, migrations, upgrades, integrations, and long-running projects that go far beyond a standard marketing site. That includes custom plugins and modules, Craft Commerce, Twig, third-party APIs, performance optimization, and ongoing modernization. Because my background goes beyond CMS development, I’m particularly strong when a Craft project includes substantial custom PHP, complex integrations, or application-level functionality. On the frontend I work with Vue, React, JavaScript, and TypeScript, and I regularly work across MySQL, Redis, Docker, Kubernetes, AWS, GCP, CI/CD, and monitoring when the project calls for it. I’ve also worked as a Team Lead and Platform Architect, while remaining hands-on with development. I like owning work from the initial technical decision through implementation, testing, deployment, and production. I don’t treat every imperfect piece of code as something that needs to be rewritten. I try to understand the product, identify what actually matters, and make technical decisions that fit the stage of the company. A startup and an enterprise often need very different solutions to the same problem. On Upwork: $500K+ earned, 10,000+ hours, 100+ projects, 100% Job Success, Top Rated Plus. I’m most interested in ongoing Laravel, Craft CMS, and full-stack development where I can take real ownership and stay involved with the product long term.