John mwangi
@johnmwangi1
Customer-support and virtual-assistance leader specializing in short-term rental operations.
What I'm looking for
I am a dynamic professional with over 7 years of experience across customer support, virtual assistance, AI data annotation, project management, and talent acquisition. I co-founded a short-term rental management service where I drive operational efficiency and exceptional guest experiences.
My background includes hands-on short-term rental management using platforms such as Airbnb, VRBO, and Guesty, together with team coordination via Trello, Slack, and Notion. I maintain high customer satisfaction through thoughtful service design and process improvements.
I have worked on AI voice and audio projects—performing voice acting, dubbing, QA, and audio annotation—and contributed to voice-modeling protocol improvements. I also have extensive experience in dataset annotation (text, image, video) and dataset QA for machine learning.
I bring proven recruiting and talent-acquisition skills, project coordination experience using Trello, Asana, and ClickUp, and certifications in virtual assistance. I seek roles where I can combine operational leadership, client-facing support, and AI/data-quality work to deliver measurable impact.
Experience
Work history, roles, and key accomplishments
Voice Acting Specialist
AudioSphere Studios
Jan 2021 - Dec 2024 (3 years 11 months)
Performed voice acting, dubbing, and narration for AI TTS projects and conducted audio QA to improve voice-model quality and consistency.
Customer Service Representative
Execo
Jan 2021 - Dec 2024 (3 years 11 months)
Handled guest inquiries and booking management for short-term rentals, implemented process improvements and maintained a 4.8/5 customer satisfaction rating.
Talent Acquisition Specialist
BrightHire Global
Jan 2018 - Dec 2021 (3 years 11 months)
Sourced and screened candidates via LinkedIn and job boards, streamlined recruitment processes, and reduced time-to-hire while improving candidate experience.
Data Annotator
Execo
Jan 2018 - Dec 2021 (3 years 11 months)
Conducted text, image, and video annotation and dataset QA to ensure high accuracy for AI/ML model training and adherence to specifications.
Project Management Support
Nexline Solutions
Jan 2018 - Dec 2021 (3 years 11 months)
Coordinated project timelines, resources, and stakeholder communication using Trello and Asana to ensure on-time delivery and workflow optimization.
Education
Degrees, certifications, and relevant coursework
University of Texas at Austin
Bachelor's Degree, Analytical Chemistry
Bachelor's degree in Analytical Chemistry completed at the University of Texas at Austin, focusing on analytical techniques and laboratory methods.
Availability
Location
Authorized to work in
Job categories
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