samwel mayamba
@samwelmayamba
AI data trainer delivering high-accuracy model labeling and quality analytics.
What I'm looking for
I’m a reliable, detail-oriented professional with 5+ years of proven experience in AI data training, customer service, data entry, and virtual assistance. I deliver high-accuracy results, meet strict deadlines, and maintain 98%+ quality scores in fast-paced remote environments.
In my current role as an AI Data Trainer & Quality Analyst, I label and evaluate large language models, reaching 99.2% accuracy while training and improving performance for major tech clients. I also perform sentiment analysis, entity recognition, and prompt response scoring, and I’ve reduced error rates by 35%. I consistently rank in the top 5% of annotators company-wide and earned a “Star Performer” award three consecutive quarters.
I’m also a strong communicator with excellent typing speed (85 WPM) and proficiency across remote tools and workflows. I’m seeking remote AI training, customer support, data entry, or virtual assistant roles where I can contribute immediately and exceed performance targets.
Experience
Work history, roles, and key accomplishments
Trained and evaluated large language models by labeling 2,500+ data points daily with 99.2% accuracy. Performed sentiment analysis, entity recognition, and prompt response scoring, and collaborated with global teams to refine training guidelines.
Senior Customer Service Representative
Crowdgen
Mar 2021 - Dec 2022 (1 year 9 months)
Provided remote customer support to 80–100 customers daily via phone, chat, and email, achieving a 97% satisfaction score and 4.9/5 average rating. Resolved technical and billing issues and upsold retention packages to drive additional monthly revenue.
Data Entry & Processing Specialist
Amazon Mechanical Turk / Appen
Jun 2019 - Feb 2021 (1 year 8 months)
Entered and verified 1,200+ records per shift across spreadsheets and proprietary platforms, maintaining a 100% quality audit pass rate. Completed high-volume transcription and categorization, correcting data discrepancies to reduce rework while following NDA and privacy protocols.
Virtual Assistant & Administrative Support
Freelance / Boldly Virtual Assistants
Sep 2018 - May 2019 (8 months)
Supported three executives by managing calendars, booking travel, and handling 150+ weekly emails with no scheduling conflicts. Created and maintained client databases and content calendars, and designed client presentations and graphics in Canva.
Education
Degrees, certifications, and relevant coursework
Arizona State University
Bachelor of Arts, Communication Studies
Activities and societies: Relevant coursework: Digital Media, Business Writing, Data Visualization, Customer Relations.
Earned a Bachelor of Arts in Communication Studies from Arizona State University, graduating in May 2018. Coursework included digital media, business writing, data visualization, and customer relations.
Central High School
High School Diploma, High School
Activities and societies: Honor Roll all 4 years; President of Future Business Leaders of America club.
Earned a high school diploma from Central High School in Phoenix, Arizona, graduating in May 2014. Recognized for honor roll achievement and leadership in Future Business Leaders of America.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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