Summary
Overview
Work History
Education
Skills
Timeline
Generic

Sarah Plasencio

Rapid City

Summary

Detail-oriented Accounts Receivable Technician with expertise in payment tracking, reconciliation, and developing Standard Operating Procedures. Known for analytical problem-solving skills and a strong work ethic, ensuring compliance and operational efficiency.

Overview

13
13
years of professional experience

Work History

Accounts Receivable Technician

Oyate Health Center
Rapid City, SD
11.2025 - Current

Experienced Accounts Receivable Technician responsible for processing and reconciling payments, maintaining detailed collection logs, and accurately posting remittance advices. Skilling in matching payments to remittances and ensuring accurate batching and classification across multiple payer types, including Private Insurance, Medicare, Medicaid, Pharmacy remittances, dental payments, and non-payments accounts. Proficient in posting dental payments within Dentrix.

Responsible for processing refund requests and recoupments while maintaining compliance with organizational policies, payer guidelines, and accuracy standards. Collaborate closely with the finance department to reconcile bank accounts and ensure accurate financial reporting. Demonstrating strong analytical, problem-solving, and attention to detail skills in researching and resolving denials, payments discrepancies, and account variances.

Within the first two months of employment, independently developed Standard Operating Procedures (SOP's) for non-payment and denial workflows, contributing to improve operational consistency, operational efficiency, and staff training resources.

MEMBER EXPERIENCE SUPPORT ASSOCIATE II

BLACK HILLS FEDERAL CREDIT UNION
Rapid City, SD
05.2024 - 08.2025

Conducted membership audits to maintain compliance and accuracy across accounts.
Performed data entry tasks, including review of statements, processing mail, and handling deposits.
Managed safety deposit box procedures, maintaining proper documentation and compliance.
Reviewed business resolutions, new membership applications, and addendums to memberships, ensuring thorough tracking of changes.
Monitored Slack channels to facilitate communication across teams.
Supported the employee engagement committee in initiatives to enhance workplace culture.

TELLER II

BLACK HILLS FEDERAL CREDIT UNION
Rapid City, SD
10.2013 - 05.2024

Resolved escalated member concerns effectively, enhancing member satisfaction.
Delivered frontline banking services, ensuring efficient handling of deposits, withdrawals, and inquiries.
Achieved flawless daily transaction balancing, maintaining operational integrity.
Contributed to new hire training, fostering team knowledge and support.
Executed membership application processing, significantly improving member service experience.
Built enduring member trust by consistently delivering high-quality, friendly service.

Education

Certificate - PHARMACY TECHNICIAN

WESTERN DAKOTA TECH
Rapid City, SD
05-2012

High School Diploma -

CENTRAL HIGH SCHOOL
Rapid City, SD
05-2011

Skills

  • Payment tracking
  • Analytical
  • Excel spreadsheets
  • Multitasker
  • Positive work ethic
  • Problem solver
  • Self motivated
  • Adaptable
  • Dependable
  • Passionate and dedicated

Timeline

Accounts Receivable Technician

Oyate Health Center
11.2025 - Current

MEMBER EXPERIENCE SUPPORT ASSOCIATE II

BLACK HILLS FEDERAL CREDIT UNION
05.2024 - 08.2025

TELLER II

BLACK HILLS FEDERAL CREDIT UNION
10.2013 - 05.2024

Certificate - PHARMACY TECHNICIAN

WESTERN DAKOTA TECH

High School Diploma -

CENTRAL HIGH SCHOOL