Open to opportunities

Douglas Mwangi

@douglasmwangi

Message

Web developer and AI data QA professional focused on secure, responsive applications and accurate datasets.

Kenya

Message

What I'm looking for

I’m looking for a role where I can build secure, responsive web apps and contribute to AI data quality, while growing through continuous improvement in remote, multicultural teams.

I’m a Computer Science diploma graduate with a professional certificate in Cybersecurity, combining hands-on AI data annotation, quality assurance, and web development. I’ve supported AI training projects by annotating image, video, text, and audio datasets while performing QA checks to maintain accuracy and consistency.

As a Freelance Web Developer (Remote), I build responsive web applications using modern technologies, including secure authentication systems and database-driven features. I collaborate remotely to gather requirements, optimize performance and mobile usability, and deliver reliable solutions—bringing an attention-to-detail and continuous improvement mindset to every project.

Experience

Work history, roles, and key accomplishments

Current

Freelance Web Developer

Current

Freelance

Jan 2025 - Present (1 year 7 months)

Develop responsive websites and web applications using modern front-end and back-end technologies, including building secure authentication and database-driven applications. Collaborate with clients remotely to gather requirements and deliver solutions while optimizing for performance, usability, and mobile responsiveness.

Responsive Web Applications React HTML CSS JavaScript PHP Python Django Flask MySQL SQLite Supabase Authentication Performance Optimization Remote Collaboration

AI Annotation & QA Intern

Lish AI Labs

Jan 2024 - Jan 2025 (1 year)

Annotated image, video, text, and audio datasets for AI/ML projects and performed quality assurance checks to ensure annotation accuracy and consistency. Worked with remote teams using online collaboration tools while handling sensitive project data with confidentiality.