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Hi, I am Dan

Dan Rowe

Systems Administrator, North America at Broadpin

Bay Area–based systems administrator responsible for IT operations and cloud infrastructure across North America at Broadpin. I specialize in Microsoft 365, Entra ID and Zero Trust security, Intune, and AWS operations, and I lead M&A migrations, identity and endpoint hardening, and cloud reliability work across AWS and Microsoft environments.

I combine deep production infrastructure experience with modern AI engineering workflows (Antigravity, Claude, VS Code)—rapidly architecting resilient PowerShell and Python automation, Microsoft Graph API integrations, and internal web applications that eliminate operational bottlenecks and scale enterprise capability.

Beyond enterprise systems, I am a CMSP-certified Motorcycle Safety Instructor and teach the California Motorcyclist Safety Program curriculum for Pacific Motorcycle Training—a role that demands calm communication, systematic risk mitigation, and disciplined coaching in high-stakes environments.

Collaboration
Project Management
Self Directed

Skills

Experiences

1
Broadpin

December 2024 - Present

Half Moon Bay, CA

Consulting and Technology Solutions for Project-Based Organizations

Systems Administrator, North America

December 2024 - Present

Responsibilities:
  • M&A Cloud Migrations & Identity Security: Led and executed end-to-end Google Workspace to Microsoft 365 cutover for 70 users with zero business communication downtime, configuring DNS cutovers and SPF/DKIM/DMARC authentication hardening.
  • Engineered and executed an M&A Microsoft 365 tenant-to-tenant migration to integrate with the parent company—seamlessly transferring 70+ users, 200+ Teams channels, and 10 SharePoint sites without data loss.
  • Enforced Zero Trust identity security via Microsoft Entra ID Conditional Access, MFA, and risk-based sign-in monitoring, complemented by Microsoft Purview DLP and compliance policies.
  • Architected Microsoft Intune endpoint management and compliance policies across mobile and desktop fleets, deploying ESET XDR with centralized cloud console management for advanced threat response.
  • AWS Cloud Operations & Reliability: Administered and hardened production AWS EC2 Linux environments, ensuring continuous uptime, patch compliance, and high availability.
  • Engineered Amazon CloudWatch alerting pipelines and proactive monitoring to rapidly detect system degradation, monitor resource utilization, and automate incident response.
  • Reduced monthly AWS compute run-rate by 16% through strategic refactoring to Reserved Instances and AWS Savings Plans while maintaining operational scalability.
  • Directed enterprise SSL/TLS certificate lifecycle management, tracking expirations and executing zero-downtime renewals across enterprise domains and web endpoints.
  • Automation & Engineering Workflows: Developed modular Python and PowerShell automation leveraging Microsoft Graph API and REST endpoints for account provisioning, identity lifecycle workflows, and directory synchronization.
  • Designed and deployed Azure DevOps CI/CD pipelines and automated storage retention workflows (snapshot cleanup scripts) to enforce data governance and eliminate redundant storage costs.
City of Pacifica

October 2023 - August 2024

Pacifica, CA

Municipal Government IT & Public Safety Infrastructure

Information Analyst / Systems Administrator

October 2023 - August 2024

Responsibilities:
  • Served as municipal IT systems engineer responsible for public-safety infrastructure, municipal government operations, and mission-critical citywide technology.
  • Stabilized and modernized legacy municipal servers and proprietary public-safety systems, improving reliability, patch compliance, and operational uptime across city departments.
  • Enforced strict Criminal Justice Information Services (CJIS) and municipal security compliance standards, securing sensitive law enforcement and municipal data through hardened access controls and auditing.
  • Delivered Tier-3 technical support and systems administration for police dispatch, emergency services, and cross-departmental municipal applications.
  • Authored comprehensive Standard Operating Procedures (SOPs) and technical documentation for municipal system administration, disaster recovery, and incident response.
  • Collaborated with cross-departmental stakeholders, municipal leadership, and external technology vendors to execute infrastructure upgrades and software integrations.
2
3
Omnicom Media Group

April 2022 - October 2023

San Francisco, CA

Global Media & Marketing Communications Network (Enterprise Scale, 5,000+ Users)

Automation Solution Architect

April 2022 - October 2023

Responsibilities:
  • Architected and delivered enterprise automation solutions using Microsoft Power Platform (Power Automate, Power Apps) and Robotic Process Automation (RPA), eliminating manual operational overhead and streamlining multi-agency workflows.
  • Developed custom RPA pipelines and Power Automate cloud flows to ingest and validate financial data into legacy platforms, establishing the enterprise benchmark for automated remittance notifications and company-wide reporting.
  • Partnered with enterprise business units to eliminate manual cross-agency data reconciliation, accelerating month-end financial reporting cycles and improving data accuracy across operating units.
  • Designed and built scalable PowerApps applications and interactive dashboards, empowering distributed business units with self-service tooling and streamlined data governance.
Obayashi North America

October 2020 - April 2022

North America

Civil Engineering and Construction

Senior Systems Engineer

October 2020 - April 2022

Responsibilities:
  • Evaluated and implemented new cloud platforms, infrastructure technologies, and enterprise collaboration systems.
  • Collaborated across departments to deliver scalable technology solutions and cloud modernization initiatives.
  • Gathered requirements, designed, built, and delivered automations using PowerShell, Power Platform, and REST APIs.
  • Worked with Payroll Department to automate a manual file process, reducing work effort by 60 hours annually.
  • Developed an SMS notification platform with PowerApps and Twilio, reducing spend on external emergency platforms by $5,000 annually.
  • Developed PowerApps applications to streamline corporate travel requests and approvals.
  • Managed Microsoft 365, Microsoft Entra ID, Okta, Mimecast, and Valimail cloud environments.
4
5
Omnicom Media Group

February 2015 - October 2020

San Francisco, CA

Global Media & Marketing Communications Network (Enterprise Scale, 5,000+ Users)

Systems Administrator

January 2019 - October 2020

Responsibilities:
  • Administered enterprise Microsoft 365 and Exchange Online environment for thousands of users, managing mailbox lifecycles, mail routing, shared mailboxes, and message security policies.
  • Managed hybrid identity infrastructure across Active Directory and Microsoft Entra ID, orchestrating secure directory synchronization, group-based licensing, and access management.
  • Served as Project Lead for agency-wide ProofPoint email security gateway migration and key technical engineer for multi-tenant Microsoft 365 consolidation across operating agencies.
  • Engineered PowerShell automation scripts for routine administrative tasks, user onboarding/offboarding, and bulk directory updates, improving enterprise support response times.
Support Specialist

February 2015 - December 2018

Responsibilities:
  • Administered Exchange Online messaging, ProofPoint email protection, and Managed File Transfer (MFT) systems across regional office locations.
  • Provided high-touch VIP and C-level executive technical support, ensuring rapid resolution of mission-critical hardware, software, and secure communications issues.
  • Maintained enterprise endpoint standards, collaborated on hardware refresh cycles, and authored technical documentation for tier-1/tier-2 support teams.

Education

Concord University
Bachelor of Arts (BA), Psychology
City College of San Francisco
Computer Science
Taken Courses:
  • Data Structures and Algorithms
  • Java Programming Fundamentals

Recent Posts

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Hardening Legacy Linux Web Stacks Against PHP RCE

Overview When recent unauthenticated PHP RCE advisories dropped (targeting PHP_SESSION_UPLOAD_PROGRESS and oversized request bodies), I was in the middle of auditing several inherited Linux web servers I took over following a team retirement. While we work through a broader migration to move legacy workloads onto fresh, Terraform-managed infrastructure, I wanted to immediately reduce our PHP attack surface and add defense-in-depth controls across the existing hosts—without causing production downtime. Because I was working across live systems that lacked a 1:1 staging twin, I leaned heavily on Claude Code and AWS Systems Manager (SSM) to orchestrate the discovery, build hash-checked apply/rollback scripts, and run an automated curl verification suite after every change. Here is how we locked the environment down.

Tuesday, October 27, 2026 Read
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A Repeatable Microsoft 365 Offboarding Script with Graph PowerShell

Overview Offboarding is one of those tasks that’s simple on paper and easy to get subtly wrong in practice. Miss a step and you end up with a departed user who still has an active session token, a mailbox nobody can read, or a license you’re paying for months later. Between employees and a steady rotation of contractors, I was offboarding people often enough that a checklist in my head wasn’t good enough. This post walks through the script I use now. It takes a UPN and runs the whole sequence the same way every time.

Thursday, July 9, 2026 Read
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Sending Cisco Firewall Logs to CloudWatch Without Drowning in Noise

Overview In an earlier post I set up SAML and MFA for VPN on a Cisco Firepower 1120 running ASA. Once that was in place, the next question was obvious: how do I know when something is wrong with the firewall without logging into ASDM every morning? We already ran most of our infrastructure in AWS, so Amazon CloudWatch was the natural place to land firewall logs. The first attempt worked, and it also sent everything. The log volume was noisy, expensive to keep, and useless for alerting. This post covers the version I ended up with: a small Linux syslog relay, a trimmed log stream, and a handful of metric filters that drive alarms and a dashboard.

Tuesday, April 14, 2026 Read

Accomplishments

Microsoft Certified: Information Security Administrator Associate (SC-401) – In Progress
Microsoft In Progress

Advanced security, compliance, and governance certification validating enterprise architecture expertise in Microsoft Purview data loss prevention (DLP), information protection sensitivity labels, data lifecycle management, insider risk management, and regulatory compliance.

Oracle Cloud Support Specialist
Oracle May 2025

Validates foundational knowledge and hands-on operational support expertise across Oracle Cloud Infrastructure (OCI) architecture, core services, and administration.

Certified Motorcycle Safety Instructor (CMSP)
California Motorcyclist Safety Program (CMSP) / Total Control Training December 2024

State-certified instructor credential authorizing delivery of the California Motorcyclist Safety Program (CMSP) Total Control Beginner Riding Clinic curriculum, coaching riders in foundational motorcycle control, risk management, and defensive street riding strategies.