Tiffany Johnson

Work History

DataAnnotation

09.2025 - Current

I have improved accuracy by at least 5% by refining training datasets and implementing fine-tuning techniques for an array of models.
I train and fine-tune large language models (LLMs) to better understand and respond to user prompts and align with specific business goals.
I use prompt engineering to create and test a wide variety of scenarios and edge cases, ensuring robust AI model performance.
I evaluate and optimize AI model performance metrics, identifying areas for improvement and refining training methodologies.
I provide corrective feedback to AI models by analyzing generated responses and identifying errors or inconsistencies.

Self-employed

05.2021 - 08.2025

Tracked and paid all household bills, maintaining a positive credit history for the family.
Oversaw the daily schedules for a household of four, coordinating school drop-offs, extracurricular activities, and appointments.
Managed all logistical aspects of family life, including meal planning, grocery shopping, and household maintenance.
Mentored and guided children in developing important social-emotional skills, such as conflict resolution and empathy.
Managed unexpected crises, adapting to changing circumstances to resolve immediate issues

Amazon

01.2019 - 04.2021

I was responsible for order picking and packing, consistently meeting or exceeding daily quotas
During a peak season with a 40% increase in orders, I assisted the technical Team to quickly diagnose and resolve mechanical and electrical issues within automated storage and retrieval systems (AS/RS) resulting in on-time order processing for all orders.
Provided training for new hires on warehouse procedures and safety protocols, ensuring a well-prepared workforce.
Routed products by scanning packages, reading labels and charts, verifying numbers and sorting packages correctly.
As a result of my efficiency and precision, I was assigned as the lead member in the troubleshooting team. Where I handled, on average 2,000 products that were flagged with problems. I corrected them and ensured they met their required deadline.

Coastal Dental

04.2014 - 08.2016

Assisted dentists in providing quality dental care to patients, including taking and developing x-rays, charting teeth, preparing materials, and cleaning instruments.
Demonstrated excellent customer service skills by greeting patients warmly and responding quickly to their needs.
Scheduled appointments for patients using the office management system software.
Managed patient records in accordance with HIPAA regulations while maintaining confidentiality of all information.
Answered phone calls promptly and responded to inquiries regarding appointment scheduling or billing issues with accuracy.
I assisted the front office staff in the complete overhaul of the 2 year insurance and payment discrepancies.

United States Marine Corps

01.2006 - 04.2014

Led, supervised, and evaluated on average at least 26 Marines in training and operational environments while fostering teamwork.
Prepared Marines under my charge in 2010 to 2011 for deployment and combat. I oversaw that all necessary training and logistical requirements were met.
I have handled administrative tasks, including legal, disciplinary, financial and recreational needs for a Unit of 500 Marines.
Monitored and maintained a wide array of logistic and communication equipment, ensuring 100% operational status for equipment valued over 1 million dollars.
I have experience in the administration, logistic, and communication fields which has given me the unique ability to be self-motivated, learn quickly, detail-oriented, work efficiently alone or in a group setting, and I have excellent verbal and written communication skills.