In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking a Senior Python Developer to join our client. We are reinventing how modern security analytics can run entirely on-premises—even in air-gapped environments. Our new SaaS+ offering will deliver the speed and agility of the cloud with the control demanded by government, defense, finance, and critical infrastructure.

As a Senior Back-End Engineer, you will design and build the backbone of SaaS+

Project information:

• Work Setup: 100% Remote work (EU based)
• Rate: 1300 PLN/net/day + VAT (B2B contract)
• Languages: English (B2+ Required)
• Start date: ASAP/ depending on candidate availability

Project scope:

• Deployment & Lifecycle - Offline-capable installer, one-click upgrades, rollback
  
  orchestration, schema/data migrations
• Update Server - Unified delivery system for both software updates and detection content (CTI, AI models, rules), with signed offline bundles, staged rollouts, and compatibility checks
• Security & Integrity - Signed artifacts, SBOM publishing, per-customer watermarking, and tamper detection
• Observability & Supportability - Local dashboards, health checks, backup/restore tooling, and a Debug Toolkit that enables customer self-resolution of most issues.

Requirements:

• Strong experience with Python and cloud-native architectures
• Hands-on work with on-premise and/or air-gapped software deployments
• Deep understanding of secure software supply chains (signing, SBOMs, artifact verification)
• Passion for solving hard lifecycle problems: version drift, upgrades, rollback, and offline licensing

We offer:

• Full-time job agreement based on B2B
• Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible
• Multisport card (also for an accompanying person)
• Life insurance