Available to hire
Hi! I’m Esther, a multidisciplinary designer and AI evaluator with a focus on bridging human creativity and AI optimization. I specialize in product design and UI/UX, with a solid background in graphic design and a hands-on approach to data annotation, model evaluation, and optimization. I love turning complex requirements into intuitive, user-centered interfaces and clear AI outputs that are both logical and high-performing.
My work blends visual analysis, pattern recognition, and heuristic evaluation to improve both product interfaces and AI system behavior. I’m proficient with tools like Figma and Canva, and I continually explore how prompt engineering, RLHF, and multimodal analysis can enhance user experiences and data quality across projects.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
English
Fluent
Work Experience
Artificial Intelligence (AI) Trainer (Freelancing) at Outlier AI, United States
December 1, 2025 - PresentEngineered and refined prompts to test Large Language Models (LLMs), optimizing for response accuracy, logical consistency, and user-centricity. Performed Reinforcement Learning from Human Feedback (RLHF) by evaluating and ranking model-generated outputs based on factuality, safety, and creative reasoning. Applied heuristic evaluation and auditing to ensure outputs followed structural best practices and complex technical constraints. Contributed to data annotation and quality assurance for the Aether project, influencing fine-tuning of next-generation LLMs. Conducted multimodal analysis to assess model’s interpretation and generation of visual/structured data, ensuring layout consistency and visual hierarchy in AI outputs.
Product Designer (Intern) at Mentorship for Acceleration (M4ACE)
March 1, 2025 - September 1, 2025Completed two product design projects (UX and UI) within six months. Collaborated with cross-functional teams to design user-friendly interfaces for a blood donation application and generated design ideas for a body fitness app. Participated in brainstorming sessions, conducted usability testing, and developed visual elements including logos, icons, images, and color schemes.
Lead Graphic Designer (Volunteer) at Girl Up Nigeria
December 1, 2024 - April 1, 2025Oversaw all designs to ensure brand consistency. Developed visually compelling designs for campaigns, social media, events, and publications. Reviewed and guided junior designers, brainstormed and designed annual awards and volunteer certificates, and collaborated with communications and social media teams to achieve organizational goals. Created visuals commemorating international observances.
Graphic Designer (Volunteer) at Deeper Christian Life Ministry - Australia
November 1, 2024 - PresentDeveloped graphics for social media platforms (Facebook and Instagram). Collaborated with clients to understand design needs and translated requirements into visual concepts. Created multiple invitation fliers for prayer breakfasts and dinners.
Assistant Graphic Designer (Volunteer) at Girl Up Nigeria
August 1, 2024 - December 1, 2024Developed 65 visually compelling graphics with Canva and Pixel Lab for campaigns, social media, and events. Brainstormed and generated ideas for various graphic designs. Optimized design elements (size, style, layout, color schemes, themes) to create innovative and functional designs. Created certificate designs for 38 attendees of an anti-gender violence event and visuals for international observances.
AI Trainer (Freelancing) at Outlier AI, United States
December 1, 2025 - PresentEngineered and refined prompts to test Large Language Models (LLMs) for response accuracy and user-centricity; performed Reinforcement Learning from Human Feedback (RLHF) to improve model alignment; applied heuristic evaluation and auditing to ensure outputs follow best practices; contributed high-fidelity data annotations for model fine-tuning; evaluated multimodal outputs for visual/layout consistency.
Graphic Designer (Volunteer) at Deeper Christian Life Ministry
November 1, 2024 - PresentDeveloped graphics for social media; collaborated with clients to understand design needs; created invitation flyers for events.
AI Trainer (Freelancing) at Outlier AI
December 1, 2025 - PresentEngineered and refined complex prompts to test the limits of Large Language Models (LLMs), optimizing for response accuracy, logical consistency, and user-centricity. Performed rigorous RLHF by evaluating and ranking model-generated outputs based on factuality, safety, and creative reasoning to improve model alignment. Applied product logic and heuristic evaluation principles to audit AI responses, ensuring that the generated content followed structural best practices and complex technical constraints. Contributed to data annotation and quality assurance for high-fidelity data used in fine-tuning next-generation LLMs and evaluated multimodal capabilities to ensure layout consistency and visual hierarchy in AI outputs.
Education
Short course in User Experience (UX) and User Interface (UI) at RMIT University, Melbourne, Australia
January 1, 2025 - January 30, 2026Bachelor of Science in Education (Political Science and Education) at Imo State University, Nigeria
January 1, 2022 - December 31, 2022Diploma in Political Science at Nnamdi Azikiwe University, Awka, Nigeria
January 1, 2015 - December 31, 2015Short course in User Experience (UX) and User Interface (UI) at RMIT University, Melbourne – Australia
January 1, 2025 - January 1, 2025Bachelor of Science (Education) Political Science (Government) and Education at Imo State University - Nigeria
January 11, 2030 - January 1, 2022Diploma Political Science at Nnamdi Azikiwe University, Awka - Nigeria
January 11, 2030 - January 1, 2015Short course in User Experience (UX) and User Interface (UI) at RMIT University
January 1, 2025 - January 1, 2025Bachelor of Science (Education) Political Science (Government) and Education at Imo State University
January 11, 2030 - January 1, 2022Diploma Political Science at Nnamdi Azikiwe University, Awka
January 11, 2030 - January 1, 2015Short course in User Experience (UX) and User Interface (UI) at RMIT University
January 1, 2025 - January 1, 2025Bachelor of Science (Education) Political Science (Government) and Education at Imo State University - Nigeria
January 11, 2030 - January 1, 2022Diploma Political Science at Nnamdi Azikiwe University, Awka - Nigeria
January 11, 2030 - January 1, 2015Short Course at RMIT University
January 1, 2025 - March 24, 2026Bachelor of Science (Education) in Political Science and Education at Imo State University
January 11, 2030 - January 1, 2022Diploma in Political Science at Nnamdi Azikiwe University, Awka
January 11, 2030 - January 1, 2015Qualifications
Systematic Logic & Linguistic Analysis
January 11, 2030 - December 1, 2025Soft skills course
January 11, 2030 - April 1, 2025Prompt Engineering and RLHF for Large Language Models (LLMs)
January 1, 2026 - February 6, 2026Systematic Logic & Linguistic Analysis
December 1, 2025 - February 6, 2026Soft Skills Certificate
April 1, 2025 - February 6, 2026Prompt Engineering and RLHF for Large Language Models (LLMs)
January 1, 2026 - March 24, 2026Systematic Logic & Linguistic Analysis
December 1, 2025 - March 24, 2026Soft skills certificate
April 1, 2025 - March 24, 2026Prompt Engineering and RLHF for Large Language Models (LLMs)
January 1, 2026 - March 24, 2026Systematic Logic & Linguistic Analysis
December 1, 2025 - March 24, 2026Soft Skills Certificate
April 1, 2025 - March 24, 2026Industry Experience
Media & Entertainment, Software & Internet, Education, Professional Services, Non-Profit Organization, Healthcare, Other
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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