BEN JAHSON TOJAH
Full-Stack Web Developer | AI Trainer & Evaluator
- jahsonben2021@gmail.com
- 09020412840
- Nigeria
- www.linkedin.com/in/ben-jahson-5151122b7/
Professional Summary
Full-Stack Web Developer and AI Training & Evaluation Professional based in Nigeria. I build modern, responsive websites and web applications for businesses, and contribute to AI training and evaluation workflows that improve the quality, accuracy, and usefulness of AI-generated outputs.
Technical Skills
- Frontend
- React.js · JavaScript · TypeScript · Vite · Tailwind CSS · Responsive Web Design
- Backend & Development
- Backend Development · Python · API Integration · Web Application Development · GitHub · Supabase · Vercel
- AI Training & Evaluation
- AI Model Training · LLM Response Evaluation · AI Output Quality Assessment · Instruction Following Evaluation · Text-to-Image Evaluation · Reference-to-Image Evaluation · Visual Quality Assessment · AI Alignment and Responsible AI Review
Selected Development Projects
FLYBIZ — Logistics & Travel
flybiz.ng
A business website for a logistics and travel company, designed to present its services and provide customers with an accessible online presence.
BENELITE GIFTED SCHOOLS — Education
benelitegiftefschools.com.ng
An educational institution website designed to communicate school information and provide a professional digital presence.
MJN TRAVEL CONSULT — Travel Consultancy
mjntravelconsult.site
A website developed for a travel consultancy business to showcase its services and establish an online presence.
AI Training & Evaluation Experience
Platform-based project work — Outlier, Handshake
- AI response evaluation: Reviewing language model responses for accuracy, helpfulness, tone, and completeness.
- Model output quality assessment: Rating outputs against structured rubrics and explaining the reasoning behind each judgement.
- Instruction-following assessment: Checking whether a response actually does what the prompt asked — including constraints and format.
- Text-to-image output evaluation: Assessing how faithfully generated images reflect the written prompt.
- Reference-image consistency: Comparing generated images against reference inputs for identity, style, and detail consistency.
- Visual quality & alignment: Flagging artefacts, composition issues, and outputs that conflict with responsible AI guidelines.
Education
GSTC Igbesa
Secondary education
NIIT Festac
Web development training
Certifications
NIIT Web Development Certification
In progress — certificate pending from NIIT Festac