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Dmytro Vashchyshyn

@dmytrovashchyshyn

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Senior Full-Stack Engineer at a product company, building PHP services for a high-load platform.

Poland

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At a product company under NDA, I’m building PHP backend services and Vue 3 features for a high-load product, including payment gateway and third-party service integrations.

At airSlate Inc, I developed marketing automation for campaigns across Google, Bing, Facebook, and Apple Ads. I built keyword generation systems handling millions of keywords and helped reduce manual campaign work by 90%.

I also built RAG systems on n8n for internal automation and a multithreaded PHP system that tripled data processing speed. I’ve mentored and onboarded engineers, and I use GitHub Copilot and Claude Code in my development workflow.

Experience

Work history, roles, and key accomplishments

Current

Senior Full-Stack Developer (Back-end)

Current

Product company under NDA

Dec 2025 - Present (11 months)

Developing backend services in PHP for a high-load product platform and frontend features with Vue 3. Designing integrations with payment gateways and third-party services, optimizing database queries, and participating in architectural decisions.

PHP Vue3 Payment Gateways REST APIs Database Optimization Unit Testing Functional Testing Scrum AI Tooling

Software Engineer | PHP Developer

airSlate Inc

Oct 2017 - Nov 2025 (8 years 1 month)

Developed large-scale marketing automation mechanisms for ad campaigns across Google, Bing, Facebook, and Apple Ads. Engineered back-end modules for keyword generation, validation, and campaign automation, and built RAG systems on n8n.

PHP Laravel Symfony Yii 2 Google Ads APIs Bing Ads Vue3 MySQL PostgreSQL Redis REST APIs OAuth OpenID Docker Kubernetes Git CI CD Grafana ELK Stack N8n GitHub Co Pilot RAG Test Driven Development Scrum

Full-Stack Developer

TavrMedia

Aug 2016 - Oct 2017 (1 year 2 months)

Developed and maintained frontend and backend components for digital platforms of Ukraine's largest radio network. Built and optimized the admin management system for broadcasting modules, audio streams, and advertising integrations.

PHP Vanilla.JS jQuery HTML5 CSS Audio Streaming System Monitoring