Senior Python Developer (SaaS)

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

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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