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corwin_ott

Corwin Ott

@corwin_ott

Microsoft 365 and Google Workspace Migrations, Email, DNS and Networks

United States
English, Spanish
About me
IT infrastructure and security engineer with 15+ years of experience. I help small and mid-size businesses with Microsoft 365 and Google Workspace migrations, email authentication (SPF, DKIM, DMARC) and DNS repair, and office networks built on Ubiquiti UniFi and business firewalls. Recent work includes consolidating 4 Microsoft 365 tenants into one for about 120 users and moving 4 domains to Google Workspace. You get a clear scope before I start, updates as I go, and written documentation when I finish. I work in English and Spanish.... Read more

Skills

c
corwin_ott
Corwin Ott
Offline • 
Average response time: 1 hour

See my services

Email Management
I will secure your microsoft 365 tenant with mfa and conditional access
From$75 / projectMore details
Email Management
I will fix spf, dkim and dmarc so your email stops going to spam
From$75 / projectMore details

Portfolio

Work experience

CyberArm_Managed IT Services

Founder and Managed IT Services Consultant

CyberArm Managed IT Services

Apr 2026 - Present • 6 mos

Managed IT services for small and mid-size businesses: Microsoft 365 and Google Workspace administration and migrations, email authentication and DNS, office networks, firewalls, and backup.

AIT

Cybersecurity Technical Lead Engineer

AIT

Jan 2023 - Present • 3 yrs 9 mos

Lead a team of 8 engineers across Windows, Linux, and VMware infrastructure. Built Ansible, PowerShell, and Bash automation that cut manual process time by 75%. Run security hardening, patching, and SIEM monitoring across 30+ sites.

Liquid

Director of Cybersecurity, OT and IT

Liquid

Oct 2020 - Jan 2023 • 2 yrs 3 mos

Rose from Network and Systems Engineer to IT Manager to Director. Managed Microsoft 365 and Entra ID for client tenants. Led Microsoft 365 and Google Workspace migrations, including consolidating 4 tenants into one for about 120 users.