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Thayná DinizTD
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Thayná Diniz

@thayndiniz

Senior Quality Assurance Supervisor at iCore improving performance and processes across U.S. dental operations.

Brazil
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What I'm looking for

I'm interested in opportunities in Operations, Quality Assurance, Process Improvement, Business Operations, and data-driven operational roles.

At iCore, I oversee quality and operational performance across a distributed team of 3 supervisors and approximately 30 agents supporting nearly 100 U.S. dental offices. I monitor KPIs, productivity, quality scores, deadlines, and workflow progress to identify risks and performance gaps.

I analyze quality and performance trends to find root causes and recurring issues, then develop QA processes, tracking systems, reports, and dashboards to support data-driven decisions. I also serve as a senior escalation point for complex operational and client-related issues.

At EZ Dental Billing LLC, I supervised agents, monitored quality and productivity, and supported resolution of complex billing and workflow issues. Earlier, I managed billing operations for U.S. dental offices, including claims submission, eligibility verification, payment posting, and accounts receivable.

I hold a bachelor's degree in Hotel Business and Hospitality from SENAC Minas and a Cambridge English C1 certification. I'm interested in Operations, Quality Assurance, Process Improvement, Business Operations, and data-driven operational roles.

Experience

Work history, roles, and key accomplishments

iCore logoIC
Current

Senior Quality Assurance Supervisor

Oct 2025 - Present (1 year)

- Oversee quality and operational performance across a distributed team of 3 supervisors and approximately 30 agents, supporting nearly 100 U.S. dental offices.
- Provide leadership and guidance to supervisors, ensuring consistent quality standards, performance expectations, and operational processes across teams.
- Monitor department KPIs, productivity, quality scores, deadlines, and workflow pr

EZ Dental Billing LLC logoEL

Quality Assurance Supervisor — Operations

Apr 2024 - Oct 2025 (1 year 6 months)

- Supervised a team of 5 agents, overseeing quality, productivity, performance, and SOP compliance.
Monitored KPIs and quality results to identify performance gaps and recurring issues.
- Conducted quality reviews and provided targeted feedback and corrective guidance.
- Managed operational escalations and supported resolution of complex billing and workflow issues.
- Developed tracking proces

EZ Dental Billing LLC logoEL

Billing Office Supervisor | Full Office Department Manager

Apr 2024 - Oct 2025 (1 year 6 months)

Responsibilities:

Oversee the entire Full Office department, ensuring all billing tasks (AR, claims, eligibility, and posting) are completed accurately and on time.

Perform regular quality checks to maintain high standards of service delivery.

Provide direct support to team members and act as the primary point of contact for dental offices.

Train and onboard new employees, promoting a strong t

EZ Dental Billing LLC logoEL

Billing Specialist — Dental Billing & Operations

Apr 2021 - Apr 2024 (3 years)

- Managed billing operations for U.S. dental offices, including claims submission, eligibility verification, payment posting, and Accounts Receivable.
- Researched insurance claims and patient accounts and communicated with insurance carriers to resolve outstanding issues.
- Performed data and documentation reviews to support accurate claim processing and account management.
- Maintained tracki

Ez Dental Billing LLC logoEL

Billing Specialist

Apr 2021 - Apr 2024 (3 years)

- Dental Billing Services such as claims submissions, and insurance verification
- Administrative services to dental offices from the USA aiming to have it all up to date in order to get faster payments
- Payment verification and posting
- AR management (Outstanding claims) with a decrease of over 60% of unpaid claims since the beginning of the year.
- Direct communication with dental insurance to

NS

English Teacher

NCI Languages School

Jan 2021 - Mar 2021 (2 months)

Taught English to beginner-level students following the Interchange methodology.

NCI Languages School logoNS

Professora de inglês

Jan 2021 - Mar 2021 (2 months)

Taught English to beginner-level students following the Interchange methodology.

ibis, ibis Styles, ibis budget logoIB

Administrative Assistant

Jun 2019 - Apr 2020 (10 months)

Managed financial transactions, including receiving and managing receipts, invoicing, and coordinating with clients and trade partners.
Handled employee-related tasks such as electronic point control, time bank management, and vacation day requests.
Provided support to management, covering for their absence and ensuring smooth operations.

ibis, ibis Styles, ibis budget logoIB

Front Desk Clerk

Dec 2017 - Jun 2019 (1 year 6 months)

Provided excellent customer service by greeting and assisting guests, handling check-ins and checkouts, verified reservations and issued room keys.
- Processed payments and handled cash/credit transactions
- Conducted night audits, managed the booking department, and performed other receptionist responsibilities.
- Answered incoming calls and assisted with guest inquiries
- Coordinated with hous

Education

Degrees, certifications, and relevant coursework

ES

EF SET

EF SET CERTIFICATE

Jan 2023

CE

Cambridge English

FCE

Dec 2019

SB

Senac Brasil

Hotelaria, CST em Hotelaria

2016 - 2017

Tech stack

Software and tools used professionally

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