New offer - be the first one to apply!

November 3, 2026

Senior Backend Software Engineer (.NET)

Senior • On-site

Kraków, Poland

Quick Facts

  • Role: Senior Backend Software Engineer (.NET)
  • Focus: Cybersecurity threat-detection backend for enterprise customers (on-prem + SaaS)

Description

We are looking for an experienced Senior Backend Software Engineer to join a team building advanced cybersecurity solutions used by enterprise customers worldwide. As a Senior Software Engineer, you’ll drive development of threat-detection features, shape architectural direction, and contribute to on-prem and SaaS product architecture.

Responsibilities

  • Design and implement backend features enabling threat detection across hybrid environments
  • Build scalable, secure services for on-prem and SaaS platforms using modern engineering practices
  • Integrate backend components with cybersecurity product ecosystems
  • Leverage AI/ML capabilities to improve anomaly detection, predictive analytics, and automated response
  • Collaborate with product management, platform teams, and engineering leadership on technical direction

Requirements

  • Minimum 5 years of experience in backend/enterprise software development
  • Experience with C# and the .NET ecosystem (.NET Core/.NET)
  • Experience designing and delivering on-prem and SaaS software at scale
  • Familiarity with cloud platforms and SaaS security best practices
  • Understanding of DevOps practices, CI/CD pipelines, and monitoring/observability

Benefits

  • Health benefits & insurance
  • Multisport card
  • Learning and development opportunities
  • Flexible work schedule
  • Innovative work in cybersecurity and AI-native environment
  • Opportunities for career growth

Similar jobs you might like

Unlock Full Resume Report