Platform Security Engineer (Senior+)

Complexio
📍 Warsaw, Masovian Voivodeship, Poland 💼 Full time 🕒 Posted June 21, 2026

Job Description

We are looking for two Platform Security Engineers (Senior+) to join our Product Security domain. This role exists because the scope and importance of our work has outgrown the capacity of a single person.

Our platform underpins multiple products and handles sensitive, high-value data. At its core sits a large, graph-based data store that powers downstream systems. Building and securing access to that data, correctly and pragmatically, is critical to the company.

This is a hands-on engineering role. You will design, build, and ship production-grade security and privacy controls, not just define policies or review designs from the sidelines.

Requirements

About the role 

  • We are looking for two Platform Security Engineers (Senior+) to join our Product Security domain. This role exists because the scope and importance of our work has outgrown the capacity of a single person. 
  • Our...

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Job Details

  • Location Warsaw, Masovian Voivodeship
  • Job Type Full time
  • Category Computer Occupations
  • Posted Date June 21, 2026
  • Application Deadline July 31, 2026