Aislinn Castillo
Littleton
Summary
Analytical and detail-oriented professional with a strong background in healthcare and financial operations. Combined experience as an Operating Room Registered Nurse with prior bookkeeping and front-end management expertise to ensure precision, compliance, and accuracy in documentation and reporting. Highly skilled in tracking inventory, verifying lot and reference numbers, reconciling data, and maintaining meticulous records. Recognized for exceptional organization, accountability, and collaboration across multidisciplinary teams. Seeking to leverage analytical, documentation, and data management skills in an accounting or finance-focused role.
Overview
11
11
years of professional experience
Work History
Registered Nurse – Operating Room
UCHealth Steadman Hawkins Surgery Center
07.2025 - Current
- Serve as a circulating nurse for orthopedic and sports medicine surgical procedures, ensuring accurate documentation and charge entry in patient charts to support billing compliance.
- Maintain meticulous records of surgical instruments, implants, and supplies, including reference and lot numbers, to ensure traceability and regulatory compliance.
- Collaborate with surgeons, anesthesia providers, and surgical technologists to maintain efficiency, accuracy, and procedural consistency.
- Demonstrate precision in data entry and time-sensitive documentation aligned with operational and financial accuracy standards.
Registered Nurse – Operating Room
UCHealth Operating Room
07.2023 - 07.2025
- Accurately documented all surgical items and materials used, including reference numbers, lot numbers, and expiration dates, ensuring compliance with hospital and regulatory policies.
- Tracked supply usage and verified surgical charges to maintain accurate billing and inventory records.
- Collaborated cross-functionally with charge nurses, scrub technicians, surgeons, and vendors to ensure precise communication of documentation and procedural data.
- Maintained exceptional attention to detail in high-pressure environments, supporting both clinical and financial accuracy within surgical operations.
Registered Nurse / Licensed Practical Nurse
Mt. San Rafael Hospital
03.2021 - 07.2023
- Maintained detailed and accurate documentation for patient records, ensuring data integrity and compliance with healthcare and billing standards.
- Coordinated with interdisciplinary teams to ensure accuracy in documentation and communication across multiple departments.
- Applied strong organizational and analytical skills to monitor workflows, verify chart accuracy, and support departmental efficiency.
Front End Manager / Bookkeeper / Barista
Safeway
10.2014 - 03.2021
- Managed daily financial operations including balancing registers, reconciling cash drawers, verifying deposits, and maintaining accurate bookkeeping records.
- Prepared and reviewed daily sales and transaction reports, identifying and resolving discrepancies to ensure accounting accuracy.
- Supported audit readiness by maintaining organized financial documentation in compliance with company policies and procedures.
- Supervised front-end operations, trained employees in cash-handling accuracy, and ensured adherence to accounting and operational standards.
- Developed analytical problem-solving skills through investigating transactional errors and improving workflow efficiency.
Education
Bachelor of Science in Nursing - Nursing
Grand Canyon University
07.2024
Associate of Applied Science - Nursing
Trinidad State College
Trinidad, CO03.2023
Certified Medical Assistant Certificate - Healthcare
Aims Community College
Greeley, CO03.2021
High School Diploma - undefined
Primero High School
Weston, CO05.2016
Skills
- Financial recordkeeping & reconciliation
- Data accuracy & documentation compliance
- Inventory & expense tracking
- Analytical problem-solving
- Cross-departmental teamwork collaboration
- Time-sensitive reporting & verification
- Organizational & communication skills
Timeline
Registered Nurse – Operating Room
UCHealth Steadman Hawkins Surgery Center
07.2025 - Current
Registered Nurse – Operating Room
UCHealth Operating Room
07.2023 - 07.2025
Registered Nurse / Licensed Practical Nurse
Mt. San Rafael Hospital
03.2021 - 07.2023
Front End Manager / Bookkeeper / Barista
Safeway
10.2014 - 03.2021
Associate of Applied Science - Nursing
Trinidad State College
High School Diploma - undefined
Primero High School
Bachelor of Science in Nursing - Nursing
Grand Canyon University
Certified Medical Assistant Certificate - Healthcare
Aims Community College