I am a dynamic and exceptionally driven digital marketing professional with a proven record of building powerful client relationships. With extensive experience in managing high-volume user bases, I excel in delivering measurable and sustainable revenue growth while consistently exceeding performance benchmarks.

MWESIGWA JAPHETH

I am a dynamic and exceptionally driven digital marketing professional with a proven record of building powerful client relationships. With extensive experience in managing high-volume user bases, I excel in delivering measurable and sustainable revenue growth while consistently exceeding performance benchmarks.

Available to hire

I am a dynamic and exceptionally driven digital marketing professional with a proven record of building powerful client relationships. With extensive experience in managing high-volume user bases, I excel in delivering measurable and sustainable revenue growth while consistently exceeding performance benchmarks.

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Language

English
Fluent
Luganda
Fluent
Spanish; Castilian
Intermediate
Swahili
Intermediate

Work Experience

Senior AI Language Model Evaluator at Outlier AI
January 1, 2024 - December 31, 2025
Evaluated advanced LLM outputs across reasoning, coding, analytical, and multi-step instruction tasks; delivered structured RLHF feedback to improve logical consistency and alignment accuracy; designed adversarial prompts to reduce hallucinations and boost safety compliance; conducted evaluator calibration and cross-review validation; maintained 95%+ quality scores across review cycles; contributed to instruction-following optimization and preference modeling.
AI Reinforcement Learning & Prompt Specialist at Scale AI
January 1, 2024 - December 31, 2024
Performed pairwise comparison ranking to optimize model preferences; contributed to supervised fine-tuning (SFT) datasets for enterprise LLM clients; evaluated mathematical reasoning, structured logic, and contextual accuracy; conducted red-team safety assessments to identify unsafe completions; assisted in bias and toxicity detection workflows.
AI Data & Quality Analyst at Appen
January 1, 2023 - December 31, 2024
Annotated and validated NLP datasets for conversational AI systems; conducted sentiment classification and entity recognition tasks; reviewed speech-to-text outputs for contextual and semantic accuracy; ensured compliance with strict quality assurance guidelines; achieved consistent 95%+ task accuracy.
Digital Marketing Strategist at Swangz Avenue
January 1, 2023 - December 31, 2024
Applied A/B testing to optimize engagement performance; leveraged data analytics to refine audience targeting; increased campaign efficiency using performance tracking dashboards.
Social Media Growth Consultant at Sanyu Restaurant
July 1, 2025 - October 31, 2025
Grew account from 11 to 381 followers within 30 days; implemented data-driven content optimization strategies to improve engagement and reach.
Remote Virtual Assistant & Customer Support Specialist at DraftKings
January 1, 2024 - January 1, 2025
Delivered high-volume virtual assistance and frontline customer support across live chat, email, and phone, maintaining 95%+ ticket resolution. Guided onboarding, feature utilization, account management, and promotional campaigns to ensure seamless adoption and long-term engagement. Escalated recurring technical issues and documented user feedback trends to help improve platform performance and customer satisfaction.
Customer Success Manager at Jumia Uganda
January 1, 2020 - January 1, 2021
Managed a high-volume portfolio of clients across the customer lifecycle from onboarding to renewal, consistently maintaining retention above 95%. Conducted strategic business reviews, identified upsell opportunities, and aligned platform capabilities with measurable ROI. Partnered cross-functionally to resolve complex issues and improve service delivery.
Content Creator & Social Media Handler at Sanyu Restaurant
January 1, 2025 - January 1, 2026
Executed digital content strategies that increased brand visibility, strengthened engagement, and built long-term customer loyalty. Created posts, campaigns, and visuals aligned with brand voice to drive audience interaction.
Digital Marketer & Content Creator at Swangz Avenue
January 1, 2024 - January 1, 2025
Developed and optimized marketing campaigns that accelerated audience growth and strengthened brand positioning across digital channels. Collaborated on content production and performance analysis to maximize reach and ROI.
Customer Success Manager at Jumia Uganda
January 1, 2021 - January 1, 2022
Managed a high-volume portfolio of clients, overseeing the customer lifecycle from onboarding to renewal while consistently maintaining retention rates above 95%. Conducted strategic business reviews and aligned platform capabilities to meet measurable ROI outcomes.

Education

Bachelor of Marketing at Makerere University Business School (MUBS)
January 11, 2030 - February 26, 2026
Uganda Advanced Certificate of Education at Midland High School Kawempe
January 11, 2030 - February 26, 2026
Uganda Certificate of Education at Midland High School Kawempe
January 11, 2030 - February 26, 2026
Bachelor of Science in Business Computing at Victoria University Kampala, Uganda
January 1, 2024 - March 1, 2026
Bachelor of Science in Business Computing at Victoria University
January 1, 2025 - March 6, 2026
Bachelor of Science in Business Computing at Victoria University, Kampala, Uganda
January 1, 2025 - March 25, 2026
High School at Midland High School, Kampala, Uganda
January 1, 2016 - January 1, 2023
Primary Education at Cosna Primary School, Kampala, Uganda
January 1, 2009 - January 1, 2016

Qualifications

Advanced Prompt Engineering for Large Language Models
January 11, 2030 - February 26, 2026
AI Alignment & Safety Fundamentals
January 11, 2030 - February 26, 2026
Natural Language Processing (NLP) Foundations
January 11, 2030 - February 26, 2026
Reinforcement Learning & Model Optimization
January 11, 2030 - February 26, 2026
Data Annotation & AI Quality Assurance Specialist
January 11, 2030 - February 26, 2026

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Education, Other, Retail, Consumer Goods