Available to hire
I’m Said Nadir Çelenk, a strong communicator starting my career in AI and media. I take my work seriously, focusing on precise diction, reliable data handling, and delivering high-quality voice recordings for AI datasets, training materials, and audiovisual projects. I am comfortable following strict guidelines, performing re-records, and meeting deadlines in collaboration with project coordinators.
I am a bilingual professional fluent in Dutch, English and Turkish, with a disciplined, problem-solving mindset and a customer-oriented approach. I value feedback, adapt quickly to different recording and speaking styles, and enjoy working in structured, team-based environments to achieve optimal results.
Experience Level
Language
Dutch
Fluent
English
Fluent
Turkish
Fluent
Arabic
Beginner
Work Experience
AI Voice Recorder at Upwork
September 1, 2025 - PresentDelivered high-quality voice recordings for AI data, including speech databases, training materials, and audiovisual projects. Ensured clear, consistent, and accurate recording quality by consciously using diction, intonation, and pacing. Followed script guidelines, performed re-recordings as needed, and collaborated with project coordinators to meet deadlines and deliver optimal results.
AI Model Trainer at Outlier Digital
November 1, 2024 - PresentPrepared, structured, and assessed training data for a variety of AI applications. Ensured datasets were accurately labeled, curated, and aligned with quality, annotation standards, privacy, and bias minimization. Performed detailed labeling and classification tasks, analyzed model output, and provided targeted feedback to improve performance. Collaborated with project coordinators to optimize data flows and implement improvements to the training process.
Tutor at Independent
September 1, 2022 - June 1, 2024Guided students individually in understanding and applying course material across various subject areas. Set learning objectives, developed tailored explanations, and used various teaching techniques to make complex topics accessible. Considered different learning styles and motivation levels and encouraged students' independence and self-confidence.
Front-Office / Echelon Employee at Madurodam
June 1, 2022 - January 1, 2025Friendly and service-oriented approach to visitors, with peak periods up to 4,000 per day. Managed the reception desk, cash register, and cross-department collaboration; answered telephone calls and connected to guests. Supported safety for 6,000+ visitors during Remembrance Day and performed light administrative tasks. Represented Madurodam at public events and opened/closed the building.
Filling Crew Member at Albert Heijn
May 1, 2019 - December 1, 2019Maintained store appearance and cleanliness; answered customer questions about product availability; identified customer needs to guide purchases; assisted with deliveries and placement of products.
AI Model Trainer at Outlier
November 1, 2024 - PresentPrepared, structured, and assessed training data for various AI applications. Ensured datasets met quality, annotation standards, and ethical guidelines; performed labeling and classification tasks; analyzed model outputs and provided targeted feedback to improve performance; collaborated with coordinators to optimize data workflows.
Tutor at Independent (Self-employed)
September 1, 2022 - June 30, 2024Guided students individually across multiple subjects, set learning objectives, and used diverse teaching techniques to simplify complex topics. Adapted to different learning styles and motivated students to develop independence and confidence.
Front-Office / Guest & Park Employee at Madurodam
June 1, 2022 - January 31, 2025Provided friendly, service-oriented assistance to visitors (up to 4,000 per day during peak periods). Managed reception duties, cash register operations, phone calls, and cross-department collaboration to ensure safety and smooth operations; opened/closed the building; supported onboarding; identified bottlenecks and contributed to process improvements.
Crew Member at Albert Heijn
May 1, 2019 - December 31, 2019Maintained store appearance and cleanliness, assisted customers with stock availability, identified customer needs, and processed deliveries.
Education
Bachelor at Islamic University of Applied Sciences Rotterdam
January 1, 2022 - January 1, 2023Certificate at HBO LOI - Business Administration (explored)
January 1, 2023 - January 1, 2024HAVO Diploma at Haags Montessori Lyceum
January 1, 2016 - January 1, 2021HAVO Diploma (cum laude) at Haags Montessori Lyceum, Den Haag
January 1, 2016 - January 1, 2021HBO Bachelor in Islamic Theology at Islamic University of Applied Sciences Rotterdam
January 1, 2022 - January 1, 2023Business Administration (HBO LOI) - explored; did not complete at LOI (HBO)
January 1, 2023 - January 1, 2024Qualifications
Successful negotiation: Essential strategies and skills
January 1, 2025 - December 14, 2025The divine reality: Islamic Theism & the mirage of atheism
January 1, 2024 - December 14, 2025AI for business certificate Growth Tribe
January 1, 2024 - December 14, 2025Marketing and Google Analytics certificate
January 1, 2023 - December 14, 2025No doubt: 10 strategies to deal with your and other people’s doubts
January 1, 2023 - December 14, 2025Successful negotiation: Essential strategies and skills
January 1, 2025 - December 14, 2025The divine reality: Islamic Theism & the mirage of atheism
January 1, 2024 - December 14, 2025AI for business certificate
January 1, 2024 - December 14, 2025Marketing and Google Analytics certificate
January 1, 2023 - December 14, 2025No doubt: 10 strategies to deal with your and other people’s doubts
January 1, 2023 - December 14, 2025Business Administration (HBO LOI) - explored
January 1, 2023 - January 1, 2024Industry Experience
Media & Entertainment, Education, Retail, Software & Internet, Travel & Hospitality, Professional Services
This was a project where we had to work with very strict safety guidelines. Our role was to make benign or harmful prompts, and then see whether or not the model made any safety failures. Then we also needed to make rubrics for the given response.
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