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Andy D.

AI data anotator - tone re-writting.

Kenya flagNairobi, Kenya

Key Skills

Software

Axiom AI
ClickworkerClickworker
AWS SageMakerAWS SageMaker

Top Subject Matter

Corporate/professional
Executive leadership tone
Customer service empathy

Top Data Types

VideoVideo
AudioAudio
TextText

Top Task Types

PolygonPolygon
SegmentationSegmentation
Point/Key PointPoint/Key Point

Freelancer Overview

CURRICULUM VITAE  Dalton Andefwa  Embu, Kenya  Phone: +254 707418118  Email: [email protected]  LinkedIn: linkedin.com/in/daltonandefwa PROFESSIONAL SUMMARY I am a university student who's very motivated and pays close attention to details. Very interested in science related fields like biology, human anatomy and physics, with very high grades at secondary school level. I have experience working with intelligence training support and doing aspects like data entry, annotation, software, data type and content evaluation, also good at rating work done by other parties. In addition done freelance work on remote tasks. Also i am well oriented and familiar with various digital platforms, including email, messaging, note-taking, and media sharing applications. Also good at evaluating language models and making prompts better i have a vast knowledge of African language "Swahili" of which i can speak and write fluently (native). well equipped with the skill of data collection in various fields, also worked by myself on freelance platforms and alongside people working remotely. Furthermore good at coming up with new ideas and adapting to new technology environment. Can communicate well with others, with main focus being on intelligence systems and data operations. EDUCATION Bachelor’s Degree — [Meru university] Computer Science 2024 – 2028 (Expected) Relevant Coursework: Artificial Intelligence Fundamentals, data Structures & Algorithms, Machine Learning Basics, Data Analysis, Human-Computer Interaction and Research Methodologies. PROFESSIONAL EXPERIENCE. Freelance AI Trainer & Data Specialist Remote | Independent Contractor 2024 – Present with responsibilities such as: working as data annotator for artificial intelligence systems came up with to verify and rate the finished product quality and if they have attained required standard. Also working with various FAQs for several companies in the customer section. To oversee and ensure that computer give true and informed answers to the asked questions. Other experiences include working with Flex Jobs as an E-financer in the accounting sector.

Labeling Experience

General AI Data Labeling

VideoVideoClassificationClassification

General AI Data Labeling I have worked on large-scale AI training datasets entailing text, image, and content annotation for machine learning and natural language processing models. The tasks i have done include text classification, sentiment analysis, tagging, content moderation review, entity recognition, and response quality evaluation. I have also handled chunks of annotation workflows across thousands of data entries while maintaining consistency with the project guidelines and taxonomy standards. worked alongside reviewers and quality assurance teams to resolve edge cases, improve annotation accuracy, and refine labeling instructions. Tasks Performed include: Text categorization and tagging, Sentiment and tone classification, Named entity recognition, AI response evaluation Data validation and correction, Content moderation labeling, Metadata tagging and organization, Project Size, Processed and reviewed large datasets ranging from hundreds to thousands of records daily/weekly basis, Supported AI model training pipelines for conversational AI and NLP systems, Worked within structured annotation platforms and workflow management systems, Quality Measures Adhered To Followed detailed annotation guidelines and decision trees Maintained labeling consistency and inter-annotator agreement standards Conducted self-QA and peer-review checks before submission Met accuracy, turnaround time, and productivity KPIs Escalated ambiguous or edge-case samples for clarification Ensured confidentiality and secure handling of sensitive data Audio & Speech Labeling Performed speech and audio annotation tasks to support automatic speech recognition (ASR) and voice AI model development. Responsibilities included transcription, timestamping, speaker identification, pronunciation review, audio segmentation, and correction of machine-generated transcripts. Worked with multilingual and accented speech samples across various audio qualities and environments to improve speech recognition accuracy and natural language understanding systems. Tasks Performed Audio transcription and correction Speaker diarization and identification Timestamp alignment Accent and pronunciation review Speech intent classification Noise and audio quality tagging Validation of AI-generated transcripts Project Size Processed extensive audio datasets containing short clips, conversations, and long-form recordings Managed large batches of audio files under defined productivity targets Contributed to continuous training and refinement of speech-recognition systems Quality Measures Adhered To Followed strict transcription and formatting standards Maintained high word accuracy and timestamp precision Performed quality assurance reviews on completed annotations Ensured consistency across labeling batches and reviewers Flagged unclear audio or low-confidence segments for escalation Complied with confidentiality and data protection requirements

2023 - Present

image annotation

ImageImageTranscriptionTranscription

Did the following tasks: 1. Centralized Data Management. 2.Image Annotation & Review. 3.Scalable Deployment. 4.Open-Source & Customizable.

2024 - 2024

Vedio Annotation

VideoVideoClassificationClassification

Annotating images, videos, and 3D data used to train computer vision AI models.

2023 - 2024

Education

M

MUST

computer science, MERU

computer science
2024 - 2026
M

MUST

computer science, MERU

computer science
2024 - 2026

Work History

W

writers thrive

Freelancer

Nairobi
2024 - 2025