Cristian Simioni Milani
Senior System Administrator · Mission-Critical Energy Infrastructure
Profile
Senior System Administrator with more than a decade in mission-critical energy systems. I design and deliver Siemens Spectrum Power 7 SCADA/ADMS infrastructure for Nordic utilities, taking projects through Factory and Site Acceptance Tests (FAT/SAT) to production go-live, and combining enterprise Linux, virtualisation and Ansible-driven automation to keep grid-control platforms secure, available and compliant. Previously I led a five-person infrastructure team at Siemens Brazil and supported global Atlassian customers, so I bridge engineering depth with clear communication to utility stakeholders and international delivery teams.
Experience
Siemens Norway
Senior System Administrator
- Design and deploy Spectrum Power 7 SCADA infrastructure across the Nordics, delivering within quality, schedule and budget targets.
- Take customer projects through FAT, SAT and production go-live, including Spectrum Power 4 to 7 upgrades for Elvia and Helen and version upgrades for Caruna and Saudefaldene.
- Administer enterprise Linux infrastructure, including installer components, virtualisation (KVM, VMware) and networking.
- Drive Ansible and Bash automation that standardises deployments, configuration and day-to-day operations.
- Own monitoring with Nagios and Grafana, leading incident troubleshooting and improving service availability.
- Partner with product teams, release trains and customer stakeholders to improve deployment processes and align solutions with operational requirements.
e-Core · Atlassian
Senior Support Engineer
- Delivered enterprise-level support for Confluence and Jira to global clients, including Apple and Disney.
- Designed and optimised self-hosted architectures: SSL, clustering, NGINX load balancing and database back ends.
- Automated documentation and governance processes, improving knowledge sharing and product adoption.
Siemens Brazil
Technical System Administrator Lead
- Led a five-person team responsible for Spectrum Power 7 infrastructure design and operation, ensuring high availability and compliance in mission-critical SCADA environments.
- Took Brazil's first Spectrum Power 7 project to go-live at Copel, migrating the utility from its in-house legacy SCADA.
- Led adoption of Ansible and GitLab CI/CD, streamlining deployments and patch management.
- Ensured compliance with corporate security standards in close collaboration with international release-train teams.
Software Engineer, Full Stack
- Developed SCADA software components in C, C++, Java, Perl and Qt for Spectrum Power 7.
- Improved product stability and performance and built custom components for client projects.
- Supported projects abroad, including the implementation of Latin America's first Energy Market Management (EMM) system in Medellín and ADMS migration planning in Vienna, with product training at Siemens sites in Nuremberg and Minnetonka.
Earlier: QA Engineer (intern), 2013 — test automation for Spectrum Power 3 and 7, and AIX vulnerability patching.
Selected Go-Lives
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ElviaNorway
ADMS upgrade from Spectrum Power 4 to Spectrum Power 7. Norway's largest grid operator; the new ADMS runs alongside the LV Insights X SaaS low-voltage platform. Siemens press release ↗
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HelenFinland
Upgrade from Spectrum Power 4 to Spectrum Power 7. Helsinki's energy company and distribution network operator.
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CarunaFinland
SCADA version upgrade. Finland's largest electricity distribution company.
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SaudefaldeneNorway
Spectrum Power 7 version upgrade. Hydropower producer in Sauda, Western Norway.
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CopelBrazil
Brazil's first Spectrum Power 7 go-live. SCADA migration from the utility's in-house legacy system at one of Brazil's largest energy companies.