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Abel Mogaka Maranga

@abelmogakamaranga

Message

AI Trainer and data validation specialist using multimodal annotation and prompt writing to improve model performance.

Kenya

Message

What I'm looking for

I’m looking for an AI training role where I can apply careful data validation, prompt writing, and multimodal QA to deliver high-quality datasets, follow clear guidelines, and improve workflows with independent ownership and strong reporting.

I’m an AI training and operations-focused contributor with 5+ years of experience in data validation, digital workflows, and AI model evaluation. I specialize in high-precision annotation, prompt writing, and response ranking to ensure training datasets follow clear guidelines and stay accurate.

In my roles, I’ve evaluated AI outputs, created prompts, identified model weaknesses, and improved dataset quality through structured process execution. I also maintain QA accuracy for image/video annotation work and use analytical reasoning and problem-solving to validate content and reduce inconsistencies.

Beyond training, I’ve supported operations and data workflows by supervising data processes and improving reporting accuracy. I’ve also delivered digital (ICT) training, performed advanced image editing/compositing, and contributed multilingual voice data for AI training.

Experience

Work history, roles, and key accomplishments

Current

Data Validation Officer

Current

Kenya Power

Jan 2024 - Present (2 years 4 months)

Supervised data workflows and improved reporting accuracy through data validation. Ensured process execution aligned with required standards and clear instructions.

Data Validation Data Workflow Supervision Data Quality Assurance Process Optimization Operations Coordination

Current

Photoshop AI Specialist

Current

Freelance

Jan 2023 - Present (3 years 4 months)

Performed advanced image editing and compositing for AI-related workflows. Produced high-quality visual outputs while following detailed project requirements.

Adobe Photoshop Image Composition Visual Content Review Data Preparation Quality Assurance Technical Documentation

Current

AI Trainer

Current

Remote

Jan 2020 - Present (6 years 4 months)

Evaluated AI outputs, created prompts, identified model weaknesses, and ensured dataset quality for multimodal training. Executed structured workflows to maintain adherence to clear guidelines and high standards.

AI model evaluation Response Ranking Prompt Editing & Validation Data Quality Assurance

Voice Data Contributor

Silencio

Dec 2025 - Feb 2026 (2 months)

Submitted multilingual voice data for AI training. Ensured submissions met quality requirements and followed evaluation guidelines.

Voice Data Contribution Data Validation Data Quality Assurance

Data Annotation Specialist

Remotasks

Jan 2019 - Jan 2023 (4 years)

Annotated image and video datasets and maintained high QA accuracy. Performed validation to ensure annotations met dataset requirements and guidelines.

Data Annotation Data Validation QA Image & Video Review Data Quality Assurance

ICT Trainer

Irungu National Polytechnic

Delivered digital training and evaluated learner performance. Supported structured learning activities and performance assessment using provided training materials.

Learning Support Technical Documentation Task Management