Open to opportunities

Katerina Mamontova

@katerinamamontova

Quality-focused AI Trainer. Blending Ops rigor & Creative nuance to optimize workflows, model safety, and data reliability.

United States

Message

What I'm looking for

I want a role where I can optimize operations and workflows, apply AI annotation and content skills, and drive measurable efficiency and revenue growth in a collaborative environment.

I am a multidisciplinary operations and creative professional with nearly 20 years' experience across business management, office administration, and high-volume customer service. I have led P&L management, implemented Lean workflows that increased team efficiency by 30%, negotiated vendor contracts to cut costs by 32%, and driven marketing initiatives that raised customer engagement by 25%.

I combine strong technical capabilities in AI data annotation, RLHF model training, photo/video editing, and digital content creation with rigorous QA practices that sustained 95%+ project quality. Bilingual in English and Russian, I prioritize exceptional client experiences, HIPAA-compliant records management, and continuous process improvement to deliver measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

LLM Trainer / AI Data Annotator

Current

Mercor

Jan 2024 - Present (2 years)

Implemented RLHF and ranked 500+ model outputs daily achieving 98% accuracy; led dense annotation for text, image, and video data and maintained 95%+ quality scores through rigorous fact-checking.

Data Annotation QA Computer Vision Labelbox Quality Assurance

Operations Manager

Door Rx Refinishing

Jan 2018 - Jan 2025 (7 years)

Managed full P&L and implemented strategic budgeting that boosted profitability by 17%; optimized workflows with Lean methods to increase team efficiency by 30% and led marketing initiatives that grew customer engagement by 25%.

P&L management Workflow Optimization Budgeting Marketing CRM

Teacher's Assistant

Premiere Learning Academy

Jan 2016 - Jan 2022 (6 years)

Documented developmental milestones and designed creative learning activities that increased student engagement by 30% and supported classroom instructional goals.

Early Childhood Education Lesson planning Documentation Communication

Bartender & Server

Potion Still / Hooters

Jan 2009 - Jan 2016 (7 years)

Delivered high-volume food and beverage service, upsold menu items to drive a 22% revenue increase and raised average check totals by 15%, improving guest satisfaction by 41%.

Upselling Customer Service Cash Handling Time Management Conflict Resolution

Receptionist & Teacher

Broadway Adult Daycare & Medical

Jan 2011 - Jan 2013 (2 years)

Implemented digital filing systems and EHR to cut document retrieval time by 30% while ensuring HIPAA compliance; verified insurance and processed claims, increasing approval rates by 15%.

EHR Records Management HIPAA Insurance Verification Office Administration Customer Service Notion Microsoft Office

Receptionist

Shelli Vanlines

Jan 2008 - Jan 2009 (1 year)

Managed front desk operations and scheduling to reduce wait times by 25% and improved client coordination for logistics and service delivery.

Front Desk Operations Scheduling Customer Service CRM Administrative Support Microsoft Office

Education

Degrees, certifications, and relevant coursework

Arizona State University

Bachelor of Arts, Elementary Education

Completed a Bachelor of Arts in Elementary Education with certifications including Applied Behavioral Analysis (ABA) and Arizona State teaching certification.