Serhii A.

Full-Stack Development: - PHP (17 years) — Laravel, Doctrine, Bitrix/Bitrix24, WordPress - JavaScript / TypeScript (15 years) — Node.js, Vue.js, REACT - MySQL, HTML/CSS - REST API design, SaaS & Serverless architectures, Multi-tenant architecture - Redis, CDN, S3 Cloud & DevOps: - Linux - AWS: ECS, Lambda, API Gateway, RDS, S3, IAM - Terraform (Infrastructure as Code) - Docker & Podman — containerization, container-based deployments - Git, Jira, CI/CD, code review automation AI & Generative Pipelines: - AI Automation Engineering - LLM integration & prompt engineering: Claude (Anthropic API), Gemini, ChatGPT/Codex, GitHub Copilot - LoRA (machine learning), RAG - Stable Diffusion / SDXL: img2img pipelines, inpainting - Production image-generation workflows: two-stage compositing pipelines (Gemini-based interior visualization), hallucination mitigation, prompt branching by generation type - LLM-based multi-label classification systems (structured scoring, catalog tagging) - Computer vision: perceptual color analysis (CIELAB, ΔE), dimension estimation from photos, batch vision processing - AI upscaling workflows (Topaz Gigapixel AI) Testing & Quality: - PHPUnit/Pest, Vitest - Automated code review pipelines E-commerce: - Shopify app development & third-party integrations (shipping APIs) - WordPress / WooCommerce