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Thamara Donat

@thamaradonat

Client Services Manager at Comcast Business managing a $1.5M+ monthly client portfolio and leading service reviews.

United States
Message

At Comcast Business, I manage a strategic client portfolio with more than $1.5M in combined monthly recurring revenue. I serve as the primary contact across service delivery, assurance, and account management, and lead service reviews covering engineering, billing, maintenance, and SLA performance.

I also own post-sales, billing, and service escalations, coordinating with internal teams to resolve issues. In earlier Comcast Business roles, I supported Premier accounts and business clients with technical and account needs, and trained clients on self-service portal capabilities using Microsoft Teams.

Experience

Work history, roles, and key accomplishments

Comcast Business logoCB
Current

Client Services Manager

Comcast Business

Jan 2025 - Present (1 year 10 months)

Manage a strategic client portfolio with over $1.5M in monthly recurring revenue, serving as the primary point of contact for service delivery, assurance, and account management. Lead proactive client engagement and serve as escalation owner for post-sales and billing issues.

Comcast Business logoCB

Commercial Customer Premier Account Executive

Comcast Business

Jan 2022 - Dec 2024 (2 years 11 months)

Managed a portfolio of 40 Premier accounts representing $300K in monthly recurring revenue, providing concierge-level support. Resolved executive-level technical escalations and maintained comprehensive account health monitoring.

Comcast Business logoCB

Change of Service Business Support Professional

Comcast Business

Jan 2014 - Dec 2022 (8 years 11 months)

Delivered platinum-level customer service to business clients via phone and email, handling technical, billing, and account management inquiries. Provisioned and configured EMTA devices, cable modems, gateways, and converters.

Customer ServiceTechnical Support
EMTA Configuration
Modem
Gateway
Email Setup
Network Configuration
Firewall Guidance
Portability

Education

Degrees, certifications, and relevant coursework

Community College System of New Hampshire logoCH

Community College System of New Hampshire

WorkReadyNH Professional Development Program, Professional Development

Grade: Silver Medal

Completed the WorkReadyNH Professional Development Program, earning the WorkReadyNH Soft Skills Program Certificate and the National Career Readiness Certificate with a Silver Medal in May 2026.

Three Rivers Community College logoTC

Three Rivers Community College

Coursework, Humanities, Business, and Criminal Justice

Completed coursework in Humanities, Business, and Criminal Justice.

RI

Ridley-Lowell Business & Technical Institute

Coursework, Medical Billing & Coding and Project Management

Completed coursework in Medical Billing & Coding and Project Management.

Tech stack

Software and tools used professionally

Availability

Looking for a job

Location

United States

Authorized to work in

Salary expectations

93k+ USD

Job categories

Skills

Client Services Management
B2B Account ManagementCustomer Retention
Technical Support and Escalation
Service DeliveryAccount ManagementClient Portfolio Management
Service Review
SLA and OLA Performance
Customer Satisfaction
Billing Oversight
Network Performance Monitoring
DNS Resolution Troubleshooting
LAN WAN Troubleshooting
Proxy Server

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