Doreen N.-Swahili Linguist | Translator | AI Annotation Specialist
Check rate
Experience
AI Language Specialist (Swahili)
Welocalize
- Evaluate AI-generated Swahili content for linguistic accuracy, fluency, grammar, and cultural appropriateness.
- Assess multilingual AI responses using detailed linguistic guidelines to improve Large Language Models.
- Review and annotate multilingual datasets for AI model training.
AI Research Contributor
Vetto AI
- Contributed travel-industry narratives and domain data for AI research.
Image Annotation Specialist
iMerit Technology
- Delivered high-accuracy image annotation for AI computer-vision training datasets.
Volunteer Beta Tester, PMI Infinity Testing Opportunity
Project Management Institute
- Provided usability feedback on PMI digital tools
Medical Translator & AI Language Contributor
Intron
- Translated medical and healthcare content from English into Swahili and Ekegusii.
- Supported multilingual AI healthcare datasets through translation and quality validation.
- Reviewed terminology consistency and semantic accuracy across medical datasets.
AI Data Trainer
RWS Group
- Perform linguistic annotation and text classification across English, Kiswahili, and Ekegusii — a rare trilingual coverage that supports rare-dialect AI data needs.
- Maintain dataset consistency and terminology accuracy across large-scale multilingual annotation projects.
AI Rater
TELUS Digital AI Data Solutions
- Rate and rank AI-generated responses for accuracy, relevance, and linguistic quality.
- Apply structured rubrics to support model fine-tuning and RLHF pipelines.
Human Resources Assistant
Kenya Utalii College
- payroll, employee data, onboarding
AI Data Specialist
Appen
- Conduct prompt evaluation and contribute to reinforcement learning projects.
- Complete rewriting, summarization, and classification tasks to structured annotation guidelines.
AI Evaluator
OneForma (Centific)
- Perform sentiment analysis, text classification, intent labeling, and metadata tagging.
- Conduct content moderation and safety evaluations across multilingual datasets.
Content Annotator & Quality Rater
Toloka | Scale AI | CrowdGen | Clickworker
- Annotated multilingual datasets across text, image, audio, and video modalities.
- Conducted English and Swahili transcription with speaker identification and timestamping.
- Executed audio annotation and speech labeling for AI voice technologies.
- Maintained quality scores exceeding 98% across multiple AI platforms.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Healthcare, Education, and Professional Services.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Quality Assurance, Research and Development, Human Resources, and Product Development.
Summary
Professional Swahili Linguist, Translator, and AI Annotation Specialist with 5+ years of experience supporting multilingual AI systems through translation, transcription, machine translation post-editing (MTPE), linguistic evaluation, localization, and data annotation. Native/bilingual proficiency in Swahili and Ekegusii, with proven RLHF, prompt-and-response evaluation, and speech/text/image annotation experience across leading global AI and localization platforms. Consistently maintains 98%+ quality scores against gold-standard benchmarks while meeting strict project deadlines.
Skills
Translation (English–Swahili)
Machine Translation Post-Editing (Mtpe)
Linguistic Quality Assurance (Lqa)
Large Language Model (Llm) Evaluation
Prompt & Response Assessment / Rlhf
Localization & Transcreation
Transcription, Speaker Id & Timecoding
Text, Audio & Image Annotation
Data Validation & Dataset Qa
Content Moderation & Safety Evaluation
Terminology Management
Subtitling
Editing & Proofreading
Project & Workflow Coordination
Annotation Tools: Label Studio, Cvat
Productivity: Microsoft Office Suite, Google Workspace, Google Sheets, Excel, Trello, Clickup
Ai & Language Platforms: Welocalize, Telus International, Rws Group, Appen, Oneforma, Imerit, Toloka, Crowdgen, Clickworker, Intron, Scale Ai (Remotasks)
Languages
Education
Jomo Kenyatta University of Agriculture and Technology
MSc · Project Management · Juja, Kenya
Project Management
Maasai Mara University
BSc · Tourism Management · Narok, Kenya
Tourism Management
Certifications & licenses
Asana Workflow Specialist Certification
Statistics
Experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Doreen is based in Nairobi, Kenya and can operate in on-site, hybrid, and remote work models.
Doreen speaks the following languages: Swahili (Native), English (Advanced), French (Elementary).
Doreen has at least 8 years of experience. During this time, Doreen has worked in at least 11 different roles and for 11 different companies. The average length of individual experience is 1 year and 8 months. Note that Doreen may not have shared all experience and actually has more experience.
Based on recent experience, Doreen would be well-suited for roles such as: AI Language Specialist (Swahili), AI Research Contributor, Image Annotation Specialist.
Doreen's most recent position is AI Language Specialist (Swahili) at Welocalize.
In recent years, Doreen has worked for Welocalize, Vetto AI, iMerit Technology, Project Management Institute, and Intron.
Doreen is most experienced in industries like Information Technology, Healthcare, and Education. Doreen also has some experience in Professional Services and Tourism.
Doreen is most experienced in business areas like Information Technology, Quality Assurance, and Research and Development. Doreen also has some experience in Human Resources and Product Development.
Doreen has recently worked in industries like Information Technology, Healthcare, and Education.
Doreen has recently worked in business areas like Information Technology, Quality Assurance, and Research and Development.
Doreen holds a Master in Project Management from Jomo Kenyatta University of Agriculture and Technology and a Bachelor in Tourism Management from Maasai Mara University.
Doreen has 1 certificate: Asana Workflow Specialist Certification.
Doreen is immediately available part-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 27 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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