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radu.circei

DevOps Support Engineer

I build and operate production infrastructure. Currently L3 platform support at CELUM—previously drove security improvements and shipped an AI assistant at Steelcase.

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Experience

CELUM (Contractor via Weasweb) – DevOps Support Engineer

dec 2025 – present · remote

L3 platform operations for a Digital Asset Management platform across Azure/AKS and on-prem. Root-cause isolation using Grafana + centralized logs, structured bug/feature escalation, and operational lifecycle management.

  • Troubleshoot service health, configuration, and connectivity across AKS/Kubernetes, Docker, Linux, and Azure SQL.
  • Root-cause analysis using Grafana dashboards, centralized logging, and API validation (Swagger/Postman) for escalation decisioning.
  • Create structured engineering items: bugs with repro steps, feature requests with acceptance criteria, and support requests with evidence + impact assessment.
  • Handle operational requests: access provisioning, environment lifecycle ops, and data/integration triage with SQL + API validation.

Steelcase – Service Desk Analyst L2

feb 2024 – dec 2025 · cluj-napoca (hybrid)

Top-performing analyst focused on security, automation, and process improvement for North America support team.

  • Proposed and delivered AI chatbot MVP (RAG-based ServiceNow assistant in Teams): designed dual-agent architecture, ran structured testing rounds, analyzed failure modes (traced to KB gaps, not retrieval logic), and produced rollout plan with automation roadmap (Graph Connector → Power Automate ticket creation).
  • Led security incident response: investigated phishing campaigns, stopped a live intrusion attempt, and improved escalation workflows.
  • Proposed and delivered process improvements: phishing workflow changes, DL/SG provisioning automation, alert/incident management optimization.
  • Daily exposure to enterprise tooling: AD, ServiceNow, SCCM/Intune, Exchange admin, Cisco ISE, Darktrace, Fortimail.
  • Participated in monthly on-call rotation for critical incidents.

Electronic Arts – BioWare – QA Tester

oct 2022 – sept 2023 · remote

Quality assurance for Star Wars: The Old Republic; built testing discipline, issue triage, and crisp reporting practices.

  • Supported 3-month release cycles through regression, feature, black-box, A/B, and compliance testing.
  • Automated repetitive test setup tasks with batch scripts (hours → minutes).
  • Collaborated with distributed teams across Disney, EA, and BioWare.

Projects

tresor homelab

Self-hosted production platform managed as infrastructure-as-code. Segmented networks, zero-trust ingress (Cloudflare Tunnel), full observability stack, and VPS proxy layer—provisioned end-to-end with Ansible.

  • End-to-end Ansible provisioning: users, firewall, Docker networks, services, monitoring.
  • VPS with two proxies, managed with the same Ansible/IaC approach.
  • Network segmentation: public apps isolated from LAN-only services; ingress only through Tunnel/reverse proxy (via VPS).
  • High uptime; monitored via grafana and uptime-kuma.
  • Designed for operational rigor: no public exposure by default, rate limiting + Turnstile on endpoints, least-privilege defaults.
ansible docker traefik cloudflare tunnel grafana prometheus debian ufw/fail2ban
repo

service desk ai chatbot

RAG-based assistant for Steelcase's service desk team to surface ServiceNow documentation directly in Teams. Built the MVP end-to-end with zero dedicated allocation — from architecture to testing to rollout planning.

  • Dual-agent architecture: one bot for end users, one for the service desk team, both backed by the same knowledge source.
  • Ran structured testing rounds with the team and validated answer consistency across both agents.
  • Analyzed response gaps: most failures traced to missing or outdated KB articles, not retrieval logic — documented remediation list.
  • KB ingestion via manual PDF export from ServiceNow into SharePoint (documented automation path via Graph Connector).
  • Designed phased roadmap: Azure AI Search indexing → Power Automate ticket creation from chat → auto-sync when new KBs are published.
  • Produced full demo deck and rollout documentation for leadership review.
rag copilot studio sharepoint teams azure ai search power automate
production

other selected projects

portfolio website (this site)

End-to-end static site build: domain registration, DNS config, responsive frontend, CF Pages deployment, Worker backend, Turnstile integration, and AWS SES in sandbox with verified addresses.

cloudflare pages workers turnstile aws ses dns responsive design
repo

batch-yt-downloader

Bash script using yt-dlp to mirror YouTube "Liked Videos" playlists into local MP3 files with thumbnails and metadata. Music synced to Jellyfin for streaming across devices.

bash yt-dlp jellyfin automation scripting
repo

life-scheduler

Trello-based automation combining Butler rules with a Python script (run via GitHub Actions) to keep daily rituals and recurring tasks self-managing.

python github actions trello api automation
repo

email spam detection

End-to-end KDD pipeline on classic spam datasets: cleaning, feature engineering, model training and evaluation (LR, RF, GB).

python scikit-learn pandas email kdd
repo

Education & Learning Path

Informatics & Economics (FSEGA)

2021 – 2024

Formal coursework while working full-time in IT (EA → Steelcase → CELUM). Chose hands-on infrastructure work over finishing the degree.

Contact

Open to DevOps, platform engineering, and infrastructure roles. Drop a message or reach out directly.

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