David Sampson
@davidsampson
I build production full-stack products and AI workflows with React, Next.js, Node.js, and AWS.
NigeriaWhat I'm looking for
I've shipped production products for Thelix Holdings, including VizaCheck's visa-readiness scoring engine, VeriPass's immigration eligibility assessment, and an executive lead-generation site.
Across fintech, healthcare, edtech, and immigration technology, I've delivered 10+ live applications end to end—from scoping and architecture through deployment. My work includes MedFind's AI medication search, OrderPay bill payments, Expatdoc Online telehealth, and LLM-powered RAG, semantic search, and automated risk-scoring workflows using OpenAI API and LangChain.
I also bring mentoring and code-review depth, having trained 100+ developers through CareerEx and Rivers State ICT Center while working with distributed, US- and UK-facing teams.
Experience
Work history, roles, and key accomplishments
Full Stack Developer & Coding Instructor
CareerEx
Mar 2024 - Present (2 years 7 months)
Built the CareerEx training platform end to end and mentors cross-functional cohorts through six-month programmes.
Senior Full Stack Engineer
Thelix Holdings
Jan 2026 - Aug 2026 (7 months)
Built and shipped three production products across the group's immigration and executive-brand portfolio, working remotely with a distributed team.
Senior Full Stack Engineer
Independent Contract
Jan 2024 - Dec 2025 (1 year 11 months)
Delivered three production applications as sole engineer, owning architecture, build, and deployment end to end.
Technical Content Developer
KnowledgeHut Inc.
Mar 2023 - Mar 2025 (2 years)
Produced a structured full-stack development curriculum and served as lead technical reviewer.
Freelance Full Stack Engineer
Telehealth Client
Aug 2023 - Dec 2024 (1 year 4 months)
Designed and built a telehealth platform end to end, connecting patients in Ireland with licensed medical professionals for remote consultation.
Coding Instructor & Full Stack Developer
Rivers State ICT Center
Jul 2021 - Dec 2023 (2 years 5 months)
Taught MERN-stack development to 100+ students and supervised real project builds with code review and architectural coaching.
Frontend Developer
Freelance & agency work
Jan 2020 - Dec 2022 (2 years 11 months)
Delivered 10+ web and mobile applications across various sectors using React, React Native, Next.js, WordPress, and PHP.
Education
Degrees, certifications, and relevant coursework
University of Port Harcourt
Bachelor of Science, Computer Science
2012 - 2016
Bachelor of Science in Computer Science from the University of Port Harcourt.
Availability
Location
NigeriaAuthorized to work in
Website
davidsampson.vercel.appJob categories
Skills
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