Derrick Denkyi
@derrickdenkyi
Expert AI Training Data Specialist blending customer operations, data analysis, and prompt engineering to improve LLM quality.
What I'm looking for
I’m a results-driven AI Training Data Specialist and expert evaluator with close to a decade of progressive experience across client communications, data analysis, AI model evaluation, and information technology. I’m known for handling interactions with clarity, professionalism, and genuine care—while bringing structure, ownership, and a focus on measurable outcomes.
On the Mindrift platform by Toloka, I evaluate and rate AI-generated responses for conversation quality, instruction-following accuracy, factual correctness, reasoning coherence, and safety. I deliver expert-level assessments that directly shape the behavior and improvement of large language models, often working across multiple projects with strict professional standards and disciplined evaluation criteria.
Previously, I led email operations and client communications by designing structured inbox triage, achieving 100% order delivery accuracy through meticulous verification, and resolving recurring issues at root cause. I also produced clear, data-driven reports for multiple departments and maintained accurate digital records through consistent QA and process improvement.
My foundation in ICT and AI fluency—supported by Anthropic certifications across AI fluency, developer/API skills, and agentic workflows—keeps my evaluations grounded in how AI systems think and where they fail. I bring prompt engineering, AI alignment mindset, and practical operational discipline to every task I complete.
Experience
Work history, roles, and key accomplishments
AI Training Data Evaluator
Mindrift by Toloka
Jan 2026 - Present (5 months)
Evaluates and rates AI-generated responses for quality, instruction-following, factual correctness, reasoning coherence, and safety, shaping improvements to large language models. Completes expert-level tasks across multiple projects, including end-to-end agent performance testing and preference-ranked feedback.
Email Clerk & Data Analyst
EmpireTickets.com
Jan 2024 - Jan 2026 (2 years)
Built an inbox triage system to categorise, prioritise, and route inbound/outbound correspondence, ensuring timely, professionally crafted responses. Maintained 100% order delivery accuracy through data verification and documentation review, and reduced recurring errors by addressing root causes.
Social Media & Client Support
Freelance
Jan 2022 - Jan 2024 (2 years)
Managed high-volume client enquiries across email, social media, and direct messaging while maintaining brand consistency and a professional tone. Implemented proactive complaint management and achieved a 100% client contract renewal rate through consistent performance and practical reporting.
Customer Service Representative
Milexiss Hill Top View Spots
Jan 2017 - Jan 2018 (1 year)
Served as the primary point of contact for customers, delivering an accurate first impression and clear communication of service offerings, pricing, and promotions. Resolved complaints calmly and constructively and contributed to improved customer satisfaction and repeat visits.
Education
Degrees, certifications, and relevant coursework
Ghana Communication Technology University
Diploma in ICT, Information and Communication Technology (ICT)
Completed a Diploma in ICT at the Tesano campus.
Aggrey Memorial SHS
WASSCE, General Arts / Science
Earned WASSCE qualifications in General Arts/Science.
ALX Africa
Certificate: AI Career Essentials, Artificial Intelligence
Completed the AI Career Essentials certificate program.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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