Senior Full-Stack Engineer (Backend-oriented)

About the company

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the project

We’re hiring for Elementor — one of the largest website-building platforms globally.

• A new website is created every 10 seconds
• 18M+ websites powered worldwide
• Used in 150+ countries

You’ll work on a large-scale product, building tools used by millions every day.
 

What you’ll do

• Build and scale backend services (Node.js / NestJS)
• Develop frontend features with React
• Own features end-to-end: design → development → release
• Work on performance, scalability, and security
• Contribute to AI-powered workflows
• Collaborate with product, design, and engineering teams

Tech stack

• Node.js (NestJS), TypeScript
• React, JavaScript (ES6+), CSS
• MySQL
• Testing: unit + E2E
• AI tools: GitHub Copilot, ChatGPT

Requirements

• 6+ years of full-stack development experience
• 3+ years with Node.js and TypeScript
• 2+ years with NestJS (or similar framework)
• 3+ years with React
• Experience with MySQL (design + optimization)
• Experience building scalable production systems
• Strong understanding of web fundamentals (HTTP, architecture, performance, security)
• Experience with automated testing (unit + E2E)
• Experience using AI tools (Copilot, ChatGPT) in development
• English — Upper-Intermediate

Nice to have

• Experience with WordPress / Elementor
• Open-source contributions
• SCSS
• Playwright

Why this role is interesting

• Large-scale product (18M+ websites)
• Strong backend ownership
• Real system design challenges
• Practical use of AI in development workflows
• Direct impact on a global product

What we offer

• Hybrid setup — start fully remote, then transition to 2 days/week in the Warsaw office.
• 20 days paid vacation + holidays
• Full legal & accounting support
• Competitive compensation + regular reviews