Jeff B.

Top Rated Plus freelancer | Full-Stack developer & AI quality specialist since 2020. I help product and AI teams ship reliable software and higher-quality model outputs - from building and fixing full-stack features to evaluating LLMs, TTS, translation quality, and payment flows. WHAT I DO • Full-Stack development (web products, APIs, dashboards, automation) • AI / GenAI evaluation: LLM response ranking, rubrics, linguistic review • TTS & multilingual QA (French + English) • Software QA / data quality / test workflows • FinTech & payments testing and implementation support PROOF • Upwork Top Rated Plus - consistent delivery for international clients • Completed AI / QA programs via OPRIMES (Qualitrix), including: - TTS Evaluation - Paysecure (payments) - AI Fiesta Linguistic Review - GenAI LLM Response Ranking (customer service, finance/banking, STEM) • Founder & builder at McBuleli - FinTech, AI, automation, community platforms HOW I WORK • Clear scope, milestones, and weekly updates • Fast start on well-defined tasks; careful discovery on complex builds • NDA-friendly; I do not share confidential client data • Available for fixed-price pilots (10-20 hours) or ongoing weekly capacity LANGUAGES French (native) · English (professional) Based in Kinshasa, DRC · remote-first · overlap with EU / US / Africa timezones. Tell me your goal (build, fix, evaluate, or QA) and I’ll propose a short plan + estimate.