Vladislav P.

Need a Rails developer who can understand your existing application, build new features, and take ownership of the details? I’m a Senior Full-Stack Ruby on Rails developer with 8+ years of commercial experience. I help businesses build and improve web applications, with a focus on reliable backend development, practical interfaces, and maintainable code. I use LLM coding agents, including OpenAI Codex, as part of my daily development workflow—for exploring codebases, implementing features, refactoring, and writing tests. I guide these tools with project context, review their changes, and validate the results. You work directly with an experienced developer who takes responsibility for the implementation. Here’s where I can help: • Rails development: new features, complex business logic, legacy code improvements, and Rails upgrades. • APIs and integrations: REST APIs, authentication, external data sources, payments, and import workflows. • Full-stack features: React interfaces and Rails applications using Hotwire, Turbo, and Stimulus. • Background processing: Sidekiq, Redis, scheduled jobs, notifications, and large data imports. • AI features: LLM integrations for document processing, summaries, classification, and automated workflows. • Debugging and testing: investigating production issues, fixing unreliable tests, and covering critical behavior with RSpec and Capybara. My recent work includes a B2B real estate platform with interactive maps, geospatial data, company accounts, subscription permissions, property imports, external APIs, and AI-assisted document analysis. I’m comfortable working through features that span the database, background jobs, API, and user interface. My core stack: Ruby on Rails • PostgreSQL • React • JavaScript • Hotwire / Turbo / Stimulus • Sidekiq • Redis • Tailwind CSS • Bootstrap • RSpec • AWS S3 You can expect clear communication, practical technical decisions, and updates that explain what’s done and what needs attention. I’m available for hourly projects and ongoing collaboration. Send me a short description of your application and what you want to build or fix—we can discuss the next steps.