Julius Nguma

Key Skills

Software

Other

Sama

Appen

Clickworker

Micro1

Top Subject Matter

NLP and Generative AI

LiDAR and Semantic Segmentation

General Text Annotation and Transcription

Top Data Types

Text

3D Sensor

Image

Document

Top Task Types

Segmentation

Transcription

Bounding Box

Classification

Point/Key Point

Polyline

Object Detection

Cuboid

Question Answering

Text Summarization

Data Collection

Prompt + Response Writing (SFT)

Polygon

Evaluation/Rating

Text Generation

Freelancer Overview

Data Curator / LLM Curator (Freelance – RWS & Other AI Platforms). Brings 1+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Other and Sama. Education includes Postgraduate Diploma, Uganda Management Institute (2019) and Certificate, Law Development Centre (2013). AI-training focus includes data types such as Text and 3D Sensor and labeling workflows including Evaluation, Rating, and Segmentation.

Labeling Experience

Data Curator / LLM Curator (Freelance – RWS & Other AI Platforms)

OtherText

As a freelance Data Curator and LLM Curator, I worked on multiple projects involving NLP, Generative AI, semantic annotation, and model evaluation. I performed LLM evaluation, prompt-response grading, safety assessment, and bias detection to improve model reliability and alignment. I was responsible for semantic segmentation, text classification, entity recognition, and multimodal data labeling workflows. • Delivered high-impact annotation and labeling on global AI platforms (RWS, others) • Conducted data validation and quality audits to ensure compliance with standards • Applied prompt engineering techniques and mentored junior annotators • Collaborated with global teams for large-scale dataset consistency

As a freelance Data Curator and LLM Curator, I worked on multiple projects involving NLP, Generative AI, semantic annotation, and model evaluation. I performed LLM evaluation, prompt-response grading, safety assessment, and bias detection to improve model reliability and alignment. I was responsible for semantic segmentation, text classification, entity recognition, and multimodal data labeling workflows. • Delivered high-impact annotation and labeling on global AI platforms (RWS, others) • Conducted data validation and quality audits to ensure compliance with standards • Applied prompt engineering techniques and mentored junior annotators • Collaborated with global teams for large-scale dataset consistency

2023 - Present

AI Trainer – Machine Learning Projects (Sama Uganda)

Sama3D SensorSegmentation

As an AI Trainer at Sama Uganda, I designed and implemented training on LiDAR, semantic segmentation, transcription, and text categorization. I facilitated onboarding, certification, and continuous learning around these AI labeling workflows. I maintained quality standards and worked with QA and operations teams to optimize labeling outputs. • Supported SWAT operations and rapid deployment of AI teams • Managed learner progress and provided feedback via e-learning • Delivered refresher training to address annotation quality gaps • Led training and team coaching for improved annotation accuracy

As an AI Trainer at Sama Uganda, I designed and implemented training on LiDAR, semantic segmentation, transcription, and text categorization. I facilitated onboarding, certification, and continuous learning around these AI labeling workflows. I maintained quality standards and worked with QA and operations teams to optimize labeling outputs. • Supported SWAT operations and rapid deployment of AI teams • Managed learner progress and provided feedback via e-learning • Delivered refresher training to address annotation quality gaps • Led training and team coaching for improved annotation accuracy

2020 - 2022

Data Associate (Samasource Uganda)

SamaTextTranscription

As a Data Associate at Samasource Uganda, I executed high-volume annotation, transcription, and data analysis projects. These assignments required accuracy and consistency to meet project deadlines. I continually supported onboarding and training for new annotation workflows. • Performed annotation, transcription, and data analysis to strict targets • Supported trainee onboarding for labeling tasks • Demonstrated high attention to detail in all annotation projects • Contributed to team productivity under fast-paced conditions

As a Data Associate at Samasource Uganda, I executed high-volume annotation, transcription, and data analysis projects. These assignments required accuracy and consistency to meet project deadlines. I continually supported onboarding and training for new annotation workflows. • Performed annotation, transcription, and data analysis to strict targets • Supported trainee onboarding for labeling tasks • Demonstrated high attention to detail in all annotation projects • Contributed to team productivity under fast-paced conditions

2017 - 2019

Education

Work History