Boniface Karanja
@bonifacekaranja
AI Training & Infrastructure Specialist at DataAnnotation.tech evaluating LLMs for SFT workflows.
KenyaWhat I'm looking for
At DataAnnotation.tech, I evaluate and benchmark LLM outputs for factual accuracy, reasoning depth, and alignment with human judgment, then feed structured findings into SFT workflows. At Crossing Hurdles, I annotate video frames and spatial and temporal data for robotics and autonomous-navigation models.
I built a GPT-style transformer pretraining pipeline from scratch in PyTorch, including distributed multi-GPU and multi-node training. I also authored a published sovereign AI infrastructure blueprint and have evaluated agentic and multimodal AI systems.
Experience
Work history, roles, and key accomplishments
Video Annotator
Crossing Hurdles
Jun 2026 - Present (4 months)
Performs high-precision video frame annotation and spatial/temporal labeling for robotics and autonomous-navigation models, validating multi-object tracking and resolving edge-case ambiguities.
Data Quality Assurance Analyst
DataAnnotation.tech
Apr 2026 - Present (6 months)
Evaluates and benchmarks LLM outputs for factual accuracy, reasoning depth, and alignment with human judgment, feeding structured findings into SFT workflows under consistent evaluation rubrics.
Freelance Technical & Academic Writer
Freelancer.com
Jan 2022 - Present (4 years 9 months)
Researches and authors technical and academic papers from peer-reviewed literature, adopting AI-assisted research and prompt engineering workflows since December 2022.
AI Model Evaluator
Handshake AI Fellowship
Nov 2025 - Mar 2026 (4 months)
Evaluated multimodal AI prompts, images, and video for model reasoning and robustness, identifying edge-case failures and applying prompt-engineering techniques against quality benchmarks.
Education
Degrees, certifications, and relevant coursework
Mercor
Certification of Recognition, AI Agent Evaluation
Completed the Introduction to Agents certification, focusing on rigor, calibration, and clarity in AI agent evaluation.
Harvard University
CS50x, CS50P, CS50 AI, Computer Science
2024 - 2025
Completed CS50x, CS50P, and CS50 AI courses via edX, covering computer science fundamentals, Python programming, and artificial intelligence.
freeCodeCamp
Deep Learning, Artificial Intelligence, and MLOps, Deep Learning, Artificial Intelligence, MLOps
2025 - 2025
Completed coursework in Deep Learning, Artificial Intelligence, and MLOps.
University of Nairobi
Bachelor of Construction Management, Construction Management
2018 - 2022
Pursued a Bachelor of Construction Management, gaining knowledge in construction project management and related disciplines.
Availability
Location
KenyaAuthorized to work in
Salary expectations
Social media
Job categories
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