Vitaliy Z.

Senior Laravel Engineer & Software Architect with 10+ years of experience designing, modernizing, scaling, and maintaining SaaS platforms, marketplaces, APIs, and complex business applications. I work best on projects where the challenge goes beyond writing another CRUD feature: evolving an existing architecture, modernizing a legacy system, designing reliable backend services, solving performance problems, or preparing an application for long-term growth. My core expertise is Laravel/PHP, backed by strong experience with PostgreSQL/MySQL, Redis, Docker, Vue.js, REST APIs, integrations, AWS, and production infrastructure. How I Can Help • Design and evolve Laravel application architecture • Build scalable SaaS platforms, marketplaces, and business applications • Take ownership of complex existing Laravel codebases • Modernize and upgrade legacy Laravel/PHP systems • Design REST APIs, integrations, webhooks, and background processing • Refactor applications without unnecessary full rewrites • Diagnose architectural, performance, and production issues • Design PostgreSQL/MySQL schemas, indexes, and data flows • Implement Redis caching, queues, workers, and real-time functionality • Build Vue.js / TypeScript dashboards and application interfaces • Design Docker-based development and production environments • Improve CI/CD, automated testing, deployment, and production reliability • Review existing systems and recommend practical architectural improvements Architecture & Existing Systems A significant part of my work involves complex applications that already have users, business logic, integrations, and technical constraints. I can quickly analyze an unfamiliar codebase, understand its architecture and business logic, identify high-risk areas, and create a practical path forward. My approach is usually evolutionary rather than destructive: preserve what works, isolate problematic areas, improve boundaries and architecture, add tests around critical behavior, and modernize the system incrementally. I work with modular architecture, DDD principles, service layers, repositories, events, queues, and other patterns when they solve an actual engineering problem — not simply because a pattern is fashionable. SaaS, Marketplaces & Business Platforms My experience includes SaaS applications, marketplaces, multi-store systems, ERP and retail integrations, analytics and reporting, search systems, role-based administration, authentication and authorization, notifications, real-time functionality, and applications with complex business workflows. I am comfortable working across the entire system — from database design and backend architecture to APIs, frontend applications, infrastructure, and deployment. APIs & Integrations I design and maintain REST APIs and integrations with external platforms and business systems. This includes OAuth and authentication providers, Google services, AWS services, email and notification systems, webhooks, payment-related workflows, external APIs, and asynchronous integrations using queues and background workers. I pay particular attention to failure handling, retries, idempotency, security, observability, and maintaining clear boundaries between the application and external services. Databases & Performance I work extensively with PostgreSQL and MySQL: • Database and schema design • Migrations and data transformations • Indexing and query optimization • Transactional workflows • Debugging slow queries • PostgreSQL/PostGIS • Redis caching • Queues and background processing • Search infrastructure Performance work starts with identifying the actual bottleneck rather than applying random optimizations. Production & Infrastructure I am comfortable taking responsibility beyond application code. My production experience includes Docker, Nginx, PHP-FPM, AWS, PostgreSQL/MySQL, Redis, Laravel queues and workers, Supervisor, CI/CD pipelines, automated testing, deployment, monitoring, and production troubleshooting. Core Technologies Laravel • PHP • PostgreSQL • PostGIS • MySQL • Redis • REST APIs • Vue.js • JavaScript • TypeScript • Docker • AWS • Nginx • Git • PHPUnit • CI/CD • Meilisearch What You Can Expect I focus on maintainable engineering rather than quick patches. I ask questions about the business requirements behind technical decisions, communicate trade-offs clearly, and try to leave systems easier to understand and maintain than when I joined them. If you need someone who can not only implement Laravel features but also understand the system around them, make architectural decisions, modernize an existing application, and take technical ownership of complex backend work, let's discuss your project.