Daniel Wambua - AI Content Evaluator and Annotator

Q: Where is Daniel based?

Daniel is based in Bochum, Germany .

Q: What languages does Daniel speak?

Daniel speaks the following languages: English (Native), Swahili (Native), German (Intermediate) .

Q: How many years of experience does Daniel have?

Daniel has at least 8 years of experience. During this time, Daniel has worked in at least 4 different roles and for 4 different companies . The average length of individual experience is 2 years and 11 months . Note that Daniel may not have shared all experience and actually has more experience.

Q: What is Daniel's latest experience?

Daniel's most recent position is Technical Support Manager at Verizon Connect .

Q: What companies has Daniel worked for in recent years?

In recent years, Daniel has worked for Verizon Connect , Invisible , and Ryanair .

Q: Which industries is Daniel most experienced in?

Daniel is most experienced in industries like Information Technology , Tourism , and Telecommunication . Daniel also has some experience in Advertising , Education , and Media and Entertainment .

Q: Which business areas is Daniel most experienced in?

Daniel is most experienced in business areas like Operations , Quality Assurance , and Customer Service . Daniel also has some experience in Research and Development , Information Technology , and Production .

Q: Which industries has Daniel worked in recently?

Daniel has recently worked in industries like Information Technology , Tourism , and Telecommunication .

Q: Which business areas has Daniel worked in recently?

Daniel has recently worked in business areas like Customer Service , Operations , and Quality Assurance .

Recommended expert

Available

Bochum, Germany

Check rate

Experience

Apr 2023 - Present

3 years 5 months

Debrecen, Hungary

Technical Support Manager

Verizon Connect

Developed and optimised structured support workflows and evaluation procedures, applying consistent quality standards across high-volume operational tasks.
Monitored performance metrics to identify systemic issues and drive targeted improvements — a skill directly transferable to LLM performance metric analysis.
Managed escalations and maintained high accuracy and satisfaction standards in a fully asynchronous, remote-first environment.

Jun 2021 - Nov 2025

4 years 6 months

AI Data Trainer & Content Evaluator

Invisible

Evaluated AI-generated content — including text, images, and multimodal outputs — against structured rating frameworks and detailed annotation guidelines, closely mirroring the evaluation demands of this role.
Assessed outputs for quality, coherence, factual accuracy, and adherence to defined standards, providing clear written justifications for every evaluation decision.
Maintained high consistency and accuracy across thousands of annotation tasks, applying rigorous quality controls and labelling standards to ensure reliable training signal at scale.
Identified quality gaps and failure patterns in AI outputs, contributing structured feedback that directly shaped model behaviour through RLHF pipelines.
Collaborated on prompt engineering and multi-step reasoning tasks for AI performance evaluation across classification, summarisation, and Q&A domains.
Contributed to refining evaluation frameworks and annotation guidelines to improve consistency and model robustness over time.

Mar 2019 - Apr 2023

4 years 2 months

Debrecen, Hungary

Call Line Manager

Ryanair

Supervised quality and consistency across a high-volume customer support operation using Zendesk and SAP.
Trained and mentored junior agents on structured evaluation and communication standards.

Jan 2019 - Dec 2020

2 years

Video & Audio Captioner

REV.com

Reviewed and transcribed video and audio content across entertainment, corporate, and educational media — developing a strong eye for production quality, pacing, motion realism, and visual composition.
Ensured precise synchronisation, contextual accuracy, and clarity of captions, demanding sustained attention to visual and auditory detail across high volumes of diverse media formats.
Delivered consistently high-quality outputs to clients in film, advertising, and e-learning sectors, building direct familiarity with professional media production standards.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Tourism, Telecommunication, Advertising, Education, and Media and Entertainment.

Information Technology

Tourism

Telecommunication

Advertising

Education

Media and Entertainment

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Customer Service, Operations, Quality Assurance, Research and Development, Information Technology, and Production.

Customer Service

Operations

Quality Assurance

Research and Development

Information Technology

Production

Summary

Detail-oriented AI content evaluator and media analyst with over four years of hands-on experience assessing AI-generated and real-world content against structured quality frameworks. Proven ability to apply consistent analytical judgment at high volume, provide well-reasoned written justifications, and contribute directly to improving frontier AI systems through structured annotation and RLHF pipelines. Strong visual sensibility developed through professional captioning work across entertainment, corporate, and educational media, combined with deep familiarity with AI image and video generation tools.

Skills

Visual & Media Content Evaluation
Structured Annotation & Rating Frameworks
Motion, Lighting & Composition Analysis
Ai Image & Video Generation Tools
Rlhf & Llm Performance Evaluation
High-Volume Quality Annotation
Written Justification & Technical Reporting
Consistency & Accuracy At Scale
Cross-Functional Async Collaboration
Rlhf Pipelines
Prompt Evaluation
Data Annotation
Llm Output Review
Ai Image/Video Generation Tools (Midjourney, Runway, Sora-Class Tools)
Motion Realism
Lighting Analysis
Camera Movement
Composition Assessment
Production Quality Review
Video Captioning Across Entertainment, Corporate & Educational Formats
Familiarity With Professional Media Production Standards
Zendesk
Sap
Microsoft Office Suite (Word, Excel, Powerpoint)

Languages

English

Native

Swahili

Native

German

Intermediate

Education

Oct 2018 - Jun 2023

University of Debrecen

BSc · Mechanical Engineering · Debrecen, Hungary

Oct 2016 - Jun 2018

Technical University of Kenya

Introduction to Aeronautical Engineering · Nairobi, Kenya

Statistics

Experience

Total positions 4

Experience in Information Technology 5 y

Avg length 3 y 5 m

Longest experience 4 y 5 m

Global Experience

Countries worked in 1 (Hungary)

Primary country Hungary

Expertise

Recent roles Technical Support Manager, AI Data Trainer & Content Evaluator, Call Line Manager

Main industries Information Technology, Tourism, Telecommunication

Main business areas Customer Service, Operations, Quality Assurance

Qualifications

Highest degree Bachelor

Profile

Created

August 2026

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Frequently asked questions

Have questions? Find more information here.

Daniel is based in Bochum, Germany.

Daniel speaks the following languages: English (Native), Swahili (Native), German (Intermediate).

Daniel has at least 8 years of experience. During this time, Daniel has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 2 years and 11 months. Note that Daniel may not have shared all experience and actually has more experience.

Based on recent experience, Daniel would be well-suited for roles such as: Technical Support Manager, AI Data Trainer & Content Evaluator, Call Line Manager.

Daniel's most recent position is Technical Support Manager at Verizon Connect.

In recent years, Daniel has worked for Verizon Connect, Invisible, and Ryanair.

Daniel is most experienced in industries like Information Technology, Tourism, and Telecommunication. Daniel also has some experience in Advertising, Education, and Media and Entertainment.

Daniel is most experienced in business areas like Operations, Quality Assurance, and Customer Service. Daniel also has some experience in Research and Development, Information Technology, and Production.

Daniel has recently worked in industries like Information Technology, Tourism, and Telecommunication.

Daniel has recently worked in business areas like Customer Service, Operations, and Quality Assurance.

Daniel holds a Bachelor in Mechanical Engineering from University of Debrecen.

Daniel is immediately available for suitable projects.

Daniel's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

To hire Daniel, click the Meet button on the profile to request a meeting and discuss your project needs.

Daily Rate Distribution

0 2 4 6 8

<€320 €640-800 €800-960 €960+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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750

500

250

Daily rate avg. 880 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000

750

500

250

Median rate 960 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.