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November 3, 2026

Senior PHP Developer (E-commerce / SaaS)

Senior • Remote

120 - 160 PLN/yr

Warsaw, Poland

Quick Facts

Senior PHP Developer for e-commerce / SaaS

Description

Join as a Senior PHP Developer to support product teams in developing high-traffic e-commerce platforms and large-scale SaaS solutions. You’ll work on long-term projects with real impact on the backend of production applications, collaborating in a B2B model.

Responsibilities

  • Develop and maintain backends of production applications handling high traffic
  • Design database schemas and optimize queries in MySQL
  • Build and evolve integrations using REST APIs
  • Lead changes end-to-end from analysis through deployment to production
  • Help decide on system architecture and technical solutions
  • Monitor and improve application performance under real load
  • Provide technical guidance to less experienced team members

Requirements

  • Minimum 5 years of commercial PHP programming experience
  • Solid OOP fundamentals regardless of framework
  • Strong SQL and MySQL knowledge, including schema design and query optimization
  • Practical experience creating and integrating REST APIs
  • Proficiency with Git
  • Experience maintaining and developing production applications serving real traffic
  • Ability to work in a product team

Benefits

  • Collaboration model in B2B
  • Full support throughout the process

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