Senior IT Infrastructure & System Administrator (Azure & On-Prem)
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Job Summary
Sybilla Technologies designs builds and operates robotic optical observatories for monitoring objects in space. We specialize in end-to-end systems and software for automated data acquisition analysis and scheduling across networks of sensors.
Our work spans Space Situational Awareness Space Surveillance & Tracking Space Traffic Management as well as stellar and planetary research education and commercial on-demand observations. By combining cutting-edge technology with advanced software we enable faster smarter and more reliable insights from space.
About the role:
Were looking for a Senior IT Infrastructure & Systems Administrator (Azure On-Prem) who will take ownership of our infrastructure - both cloud and onprem - and help make it more stable visible and predictable over time.
This is a handson role focused on keeping core services online and secure: identity email networking VPN access servers backups and the underlying hardware. Youll work across Microsoft 365 and Azure onprem virtualization and storage and network infrastructure spanning multiple locations.
Success in this role is not about constant firefighting. Its about reducing recurring issues improving visibility into how systems behave and making the environment easier to operate and recover when things go wrong. Were looking for someone who fixes root causes sets up monitoring that matters and treats uptime and recovery as shared business responsibilities - not just technical checkboxes.
Your responsibilities:
1. Keeping the company online and secure
Ensuring high availability and security of core IT services including network connectivity VPNs DNS identity systems email and access to internal resources.
Taking ownership of uptime and service reliability - spotting issues early and preventing outages rather than reacting to them.
Designing and maintaining monitoring that provides actionable signals.
2. Microsoft 365 & Azure administration
Operating and continuously improving the Microsoft 365 and Azure environment (identity access security resource lifecycle).
Managing cloud resources with attention to structure ownership and cost hygiene.
Maintaining a leastprivilege access model using RBAC Conditional Access and MFA.
Handling Exchange Online mail flow spam and antiphishing protections and complex deliverability issues.
3. Networking and remote access
Administering network infrastructure based on MikroTik (routing switching VLAN segmentation).
Configuring and maintaining VPN connectivity (sitetosite and remote access including WireGuard).
Troubleshooting issues across network identity device and service layers.
4. Onprem infrastructure and virtualization
Maintaining HyperV environments on Windows Server.
Administering Linux servers (Ubuntu) and containerized workloads.
Managing storage systems including HA storage QNAP platforms iSCSI and shared storage architectures.
5. Backup and disaster recovery
Ensuring reliable backups using Veeam: retention policies encryption access controls and restore testing.
Regular verifications that systems can actually be recovered not just backed up.
Thinking proactively about disaster recovery scenarios and operational resilience.
6. Hardware and physical infrastructure
Managing hardware lifecycle: servers network cards UPS firmware updates and diagnostics.
Monitoring hardware health including Supermicro platforms and outofband access.
Coordinating repairs replacements and RMA processes.
Working handson with server rooms and rack infrastructure when needed.
7. Locations and environments
Supporting infrastructure hosted in a colocation facility in Toruń and a secondary / DR site in Zielonka/Bydgoszcz.
Supporting distributed and remote endpoints.
Must-haves:
3 years of experience in infrastructure / systems administration (senior-level real responsibility).
Strong networking fundamentals: VLANs routing DNS VPNs firewall thinking certificates.
Solid experience with Microsoft 365 Azure including identity and access control.
Confidence in troubleshooting cross-layer problems (PC network identity cloud service).
Ability to handle on-prem realities (hardware storage virtualization backups).
Advanced level of English to work with technical docs and communicate clearly.
Nice to haves:
Microsoft Intune / MDM experience.
Kubernetes experience (or strong container operations background).
Security mindset (hardening audit readiness basic SOC-style thinking).
Experience with HA storage iSCSI and multi-site DR patterns.
- Remote work model (HQ in Bydgoszcz/Zielonka).
- Compensation: gross PLN/month (UoP) or 116-132 PLN/hour net (B2B) depending on experience and skills.
- Work in a rapidly growing company within the prestigious Space industry.
- Full-time position with flexible working hours.
- Private medical care (LuxMed) and sports package (Multisport).
- Structured onboarding with dedicated support during the first weeks.
As part of your participation in the recruitment process we will process your personal data. The controller of your personal data is Sybilla Technologies sp. z o.o. with its registered office in Bydgoszcz.
The legal basis for processing personal data specified in the Polish Labour Code is the necessity to process such data in order to conclude a contract between the parties (Article 6(1)(b) of the GDPR). The legal basis for processing other data included in your application documents is your consent (Article 6(1)(a) of the GDPR). By providing us with personal data not specified in the Labour Code in your CV or other recruitment documents you consent to their processing.You can contact the data controller by sending an email to: or by post to: ul. Toruńska 59 85-023 Bydgoszcz Poland.
If you would like to participate in future recruitment processes as well please include the following clause in your CV:
I consent to the processing of my personal data by Sybilla Technologies sp. z o.o. also for the purposes of future recruitment processes.
Required Experience:
Senior IC
