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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
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