David Thompson-ajayi

AI Trainer (NLP & LLM Evaluation)

Avatar placeholder
Munich, Germany

Experience

Jan 2025 - Jun 2025
6 months

AI Trainer (NLP & LLM Evaluation)

Freelance

  • Designed and evaluated high-quality prompts and completions for Large Language Models (LLMs), focusing on improving response accuracy, instruction-following behavior, and factual consistency.
  • Annotated and rated LLM-generated outputs for grammar, coherence, relevance, and truthfulness.
  • Developed RLHF-style preference data by ranking model completions to inform reinforcement learning fine-tuning cycles.
  • Participated in prompt engineering experiments to assess the effect of instruction format, verbosity, and phrasing on model behavior.
  • Conducted error analysis and quality assurance on large-scale NLP datasets, identifying edge cases and linguistic ambiguity affecting LLM performance.
May 2024 - Sep 2024
5 months
Lagos, Nigeria

Senior Data Scientist

Babban Gona

  • Led the Data Analytics team of 12 analysts to deliver actionable insights for decision-making by the management team.
  • Designed and implemented scalable data systems to handle increasing data size and velocity, ensuring optimal system performance and efficiency.
  • Developed and automated ETL processes using BigQuery and introduced Power BI Dataflows to reduce data retrieval time and cut down average BI dashboard refresh time from 3 hours to under 20 minutes.
  • Supported the administration and maintenance of business intelligence applications, including user onboarding, software updates, and adherence to best practices in data governance.
May 2023 - Sep 2023
5 months
Hamilton, Canada

Machine Learning Researcher

Hamoye AI Labs

  • Tuned and optimised the performance of TensorFlow models with Katib AutoML.
  • Collaborated with the Data Science team to design, develop, and implement ML algorithms, contributing to the enhancement of predictive models.
  • Designed and evaluated prompts for machine learning models, defining comprehensive accuracy metrics which significantly enhanced predictive performance.
Feb 2023 - May 2024
1 year 4 months
Lagos, Nigeria

Data Analyst

Future Oilfield Services Limited

  • Developed and implemented automated data migration pipelines from existing company sheets to the ERP system for efficient handover from planning to operation phases.
  • Developed a data collection system to enable seamless data loading into the CRM platform and incorporated best practices into data entry procedures for all business units.
  • Trained the company’s business heads on auditing data for their respective business units, thereby ensuring good data quality.
  • Monitored progress of various Well Services projects, identifying potential risks and implementing mitigation strategies.

Summary

Data Scientist and a current master’s student in Multiphase Systems, specializing in energy systems, advanced simulations, and multiphase reactor design. Experienced in process control, computational fluid dynamics and applied machine learning, with prior industry experience as a Chemical Engineer and Data Expert.

Skills

  • Simulation & Modeling: Ansys Fluent, Openfoam, Polysun
  • Programming & Data: Python, Sql, Fortran, Matlab, C++
  • Tools & Platforms: Ms Office Suite, Power Bi, Bigquery, Linux

Languages

English
Native
French
Intermediate
German
Elementary

Education

Sep 2024 - Oct 2026

Technical University of Munich / Politecnico di Torino / École des Mines de Saint Étienne

Erasmus Mundus Joint Masters · Multiphase Systems · Munich, Germany

Aug 2016 - Feb 2022

Obafemi Awolowo University

Bachelor of Science · Chemical Engineering · Nigeria · 4.27/5.00

Certifications & licenses

ALX Data Science

DataCamp Data Analyst Professional

DataCamp Data Engineer Associate

DataCamp Data Scientist Professional

Microsoft Certified: Fabric Analytics Associate

Microsoft Certified: Power BI Data Analyst Associate

Oracle Cloud Infrastructure Foundations Associate

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Similar Freelancers

Discover other experts with similar qualifications and experience

Ronald Foerster
Ronald Foerster

IT Consultant & Continuing Education

View Profile
Robert Komorowsky
Robert Komorowsky

IT Consultant

View Profile
Anton Klonov
Anton Klonov

Head of Technical Overall Integration NSC / Hadoop Cloud Development

View Profile
Philipp Grunert
Philipp Grunert

Data Scientist & Data Engineer

View Profile
Thomas Hoefkens
Thomas Hoefkens

Senior MLOps, DevOps Engineer

View Profile
Sanjay Jayaprakash
Sanjay Jayaprakash

NLP Engineer

View Profile
Kareem Shehadeh-rifai
Kareem Shehadeh-rifai

Funding Consultant

View Profile
Chaima Dahri
Chaima Dahri

Data Scientist Intern

View Profile
Eduard Van kleef
Eduard Van kleef

Workshop Leader 'Introduction to AI Development Tools'

View Profile
Serge Kalinin
Serge Kalinin

MLOps (machine learning operations)

View Profile
Jonathan Staude
Jonathan Staude

AI Consultant

View Profile
Zakaria Aoune
Zakaria Aoune

Vice President Technology

View Profile
Tobias Reinerth
Tobias Reinerth

Senior Data Scientist

View Profile
Florian Forster
Florian Forster

Senior Director, Global Education Excellence

View Profile
Jayana Shah
Jayana Shah

Implementation of Data Management Tool for LLM & Speech Technologies

View Profile
Zakaria Bensmida
Zakaria Bensmida

Machine Learning / Software Developer

View Profile
Marwa Hamrouni
Marwa Hamrouni

Computer Vision Project

View Profile
Felix Brunner
Felix Brunner

Project

View Profile
Kevin Müller
Kevin Müller

Freelance Lecturer in Coaching

View Profile
Dancho Panovski
Dancho Panovski

IT Project Manager

View Profile
André Gensler
André Gensler

MLOps, Python, Azure Cloud Engineer with Energy Economics Background

View Profile
Thomas Becker
Thomas Becker

Agile Coach, Scrum Master

View Profile
Filipp Trigub
Filipp Trigub

Multi-chain LLM copilot for academic teaching and studying

View Profile
Louis Guitton
Louis Guitton

Freelance Solutions Architect and Machine Learning Engineer

View Profile
Martin Musiol
Martin Musiol

Product Owner AI Learning Platform

View Profile
Mathew Divine
Mathew Divine

Data Science Expert and AI Strategist

View Profile
Edris Kamal
Edris Kamal

Co-Founder, Business Strategy & Development

View Profile
Kai Schmudlach
Kai Schmudlach

Software Developer

View Profile
Tim Raveneau
Tim Raveneau

AI Engineer

View Profile
Dany-armand Djeudeu-deudjui
Dany-armand Djeudeu-deudjui

Senior Data Scientist

View Profile