J
James Ndungu
About
Detail
Nairobi, Nairobi County, Kenya
Contact James regarding:
Flexible work
Starting at
USD15.6/hour
groups
Networking
Résumé
Jobs
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AI Transcription ReviewerCrowdGenMar 2026 - Current (7 months)• Reviewed AI-generated speech transcriptions for accuracy.
• Corrected transcription errors and audio segmentation issues.
• Performed quality assurance on speech recognition datasets.
• Ensured compliance with project guidelines and technical standards.
• Supported machine learning model improvement through high-quality data validation.- NOperations Virtual AssistantNex4Jan 2026 - Current (9 months)• Supported daily technical and operational workflows in a remote environment.
• Maintained structured documentation and digital records.
• Coordinated project activities using Notion.
• Utilized AI tools to improve documentation and productivity.
• Supported remote collaboration using Microsoft Teams and Zoom.
• Assisted in organizing operational information and workflow processes. - AI Data Operations & CRM SupportCrezivantaJan 2025 - Dec 2025 (1 year)• Managed and maintained HubSpot CRM records.
• Updated customer and operational databases.
• Supported workflow organization and reporting.
• Coordinated lead tracking activities.
• Applied basic workflow automation using Zapier and Make.com.
• Managed structured email communications. - Freelance Data Analyst & Operations SupportSelf-employedJan 2024 - Nov 2025 (1 year 11 months)• Organized and cleaned operational datasets.
• Prepared spreadsheets and business documentation.
• Supported reporting and workflow optimization.
• Managed digital records using productivity platforms.
• Assisted with operational data management and process improvements.
• Developed Python scripts for data processing, workflow automation, and reporting tasks.
• Implemented version control for project code using Git. - RCashier & Financial Operations SupportRiva Supermarket & RestaurantDec 2022 - Apr 2026 (3 years 5 months)• Processed customer transactions accurately.
• Maintained financial records and daily reconciliations.
• Resolved payment-related issues.
• Supported business operations in a fast-paced environment.
• Maintained accuracy while handling financial transactions. - AI Data Annotator & Qa ReviewerRemotasksJun 2022 - Apr 2024 (1 year 11 months)• Annotated datasets for machine learning applications.
• Performed quality assurance reviews on annotated data.
• Corrected inconsistencies using project guidelines.
• Prepared structured datasets for AI model training.
• Maintained high standards of data quality and consistency.
Education
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- HubSpot Inbound Sales CertificationHubSpotFeb 2026 - Current (8 months)
- UData & Spreadsheet Skills CertificationUnknownJan 2025 - Feb 2025 (2 months)
- SBachelors in Computer ScienceSt. FrancisJan 2018 - Jan 2021 (3 years 1 month)
Projects (professional or personal)
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- Workflow & DocumentationIndependentJan 2026 - Current (9 months)• Organized project documentation using Notion.
• Coordinated digital workflows for remote teams.
• Managed operational records and structured documentation. - Independent Software Engineering ProjectsIndependent professionalJan 2024 - Nov 2025 (1 year 11 months)• Developed independent software engineering projects using Python for automation and data processing.
• Managed project repositories and version history using Git (init, commit, branch, merge, push).
• Documented work and backed up code using GitHub. - AI Data Quality ProjectsIndependentJun 2022 - Current (4 years 4 months)• Reviewed and validated AI datasets for machine learning applications.
• Improved transcription accuracy through quality assurance.
• Followed structured annotation guidelines.
• Contributed to AI training data preparation.
• Managed source code and version history using Git, including initializing repositories, branching, and merging.
• Utilized Python for data cleaning, validation, ETL workflows, and exploratory data analysis.