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Nelson Oganda

Nelson Oganda

LLM Evaluation and Text Generation Specialist &Medical AI

Kenya flagEldoret, Kenya
$15.00/hrExpertAnno MageAppenArgilla

Key Skills

Software

Anno-MageAnno-Mage
AppenAppen
ArgillaArgilla
Axiom AI
ClickworkerClickworker
CloudFactoryCloudFactory
CrowdFlowerCrowdFlower
CrowdSourceCrowdSource
CVATCVAT
Data Annotation TechData Annotation Tech
DataloopDataloop
DatatroniqDatatroniq
DatumboxDatumbox
DatasaurDatasaur
DatatureDatature
DataturkDataturk
Deep SystemsDeep Systems
DiffgramDiffgram
DoccanoDoccano
EncordEncord
Figure EightFigure Eight
Google Cloud Vertex AIGoogle Cloud Vertex AI
HastyHasty
HiveMindHiveMind
HumanaticHumanatic
iMeritiMerit
Img Lab
Kili TechnologyKili Technology
LabelboxLabelbox
LabelImgLabelImg
Label StudioLabel Studio
LightTagLightTag
LionbridgeLionbridge
Mighty AIMighty AI
MindriftMindrift
OneFormaOneForma
OpenCV AI Kit (OAK)OpenCV AI Kit (OAK)
PlaymentPlayment
ProdigyProdigy
Redbrick AIRedbrick AI
RemotasksRemotasks
RoboflowRoboflow
Scale AIScale AI
SlothSloth
Snorkel AISnorkel AI
SuperAnnotateSuperAnnotate
SuperviselySupervisely
Surge AISurge AI
TagtogTagtog
TolokaToloka
TelusTelus
Trilldata Technologies
VoTT
V7 LabsV7 Labs
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

Computer Code ProgrammingComputer Code Programming
Medical DicomMedical Dicom
TextText

Top Task Types

Bounding Box
Data Collection
Evaluation Rating
Prompt Response Writing SFT
RLHF

Freelancer Overview

With extensive experience in AI training data and data labeling, I specialize in creating, annotating, and refining datasets across text, audio, image, and medical domains. I have contributed to high-impact projects in natural language processing (NLP), computer vision, and healthcare AI for global organizations including Outlier AI, LXT.AI, Snorkel.AI, and TELUS International. My work spans prompt engineering, adversarial testing, DICOM-compliant medical imaging annotation, and multilingual speech transcription;all delivered with precision and ethical alignment. Certified in data science and machine learning, I bring deep proficiency in tools like Python, TensorFlow, Procreate, and cloud AI platforms. My dual background in AI and clinical radiology allows me to bridge healthcare knowledge with technical expertise, ensuring high-quality, domain-aware training data. This interdisciplinary edge makes me a valuable contributor to safe, reliable, and human-aligned AI systems.

ExpertSwahiliFrenchEnglish

Labeling Experience

CloudFactory

Medical Imaging Reviewer

CloudfactoryMedical DicomPoint Key PointRelationship
• Provided radiology and nursing consultations across outpatient, pediatric, and gynecology cases • Reviewed medical imaging and health records for AI applications and healthcare compliance

• Provided radiology and nursing consultations across outpatient, pediatric, and gynecology cases • Reviewed medical imaging and health records for AI applications and healthcare compliance

2019
Label Studio

Video data labeling

Label StudioVideoEmotion RecognitionAction Recognition
Video annotation according to guidelines.

Video annotation according to guidelines.

2024 - 2024
SuperAnnotate

English Language Annotator

SuperannotateTextClassificationQuestion Answering
• Evaluated and edited AI-generated content • Created training sets for creative text generation

• Evaluated and edited AI-generated content • Created training sets for creative text generation

2024 - 2024
CVAT

Computer Vision Expert

CVATImageClassificationObject Detection
• Trained deep learning models for autonomous systems • Designed detection and segmentation for object-level AI • Work aligned with threat detection like DICOS-format tasks

• Trained deep learning models for autonomous systems • Designed detection and segmentation for object-level AI • Work aligned with threat detection like DICOS-format tasks

2024 - 2024
Scale AI

General Transcriptionist & NLP Annotator – Outlier.com

Scale AITextText GenerationText Summarization
• Transcribed and refined audio for training NLP models

• Transcribed and refined audio for training NLP models

2024 - 2024

Education

N

N/A

Diploma, Computer Science

Diploma
Not specified
N

N/A

Certified Radiologist, Radiology

Certified Radiologist
Not specified

Work History

O

Outlier.com

AI Prompt Writer & Response Evaluator

N/A
2023 - 2025
D

Data Annotation.AI

AI Training Specialist

Remote-Nairobi, Nairobi
2023 - 2024