sarah mumbua
@sarahmumbua
I build responsive web interfaces and UI/UX designs connected to backend services.
KenyaWhat I'm looking for
I'm a freelance web developer and UI/UX designer who turns prototypes into functional web applications using HTML, CSS, JavaScript, React, and REST APIs.
I design interface elements, navigation, mockups, and prototypes, then connect frontend screens to backend services while troubleshooting responsiveness issues and incorporating user feedback.
I've also delivered SEO-optimized ghostwritten content for blogs, eBooks, websites, and product descriptions, alongside office administration experience supporting teams, records, reporting, and customer service.
Experience
Work history, roles, and key accomplishments
Web Developer || UI/UX Designer
Freelancer
Jan 2018 - Present (8 years 9 months)
Designed graphic user interface elements and developed UI mockups and prototypes. Connected frontend screens to backend services using RESTful APIs and collaborated with teams to resolve conflicts and prioritize needs.
Ghostwriter – Freelancer (Upwork)
Freelancer
Jan 2022 - Dec 2024 (2 years 11 months)
Created original, engaging, and SEO-optimized content for blogs, eBooks, websites, and white papers. Conducted research, revised drafts based on client feedback, and managed multiple writing projects under tight deadlines.
Office Administrator
Tuxstyle Limited
Oct 2019 - Apr 2022 (2 years 6 months)
Coordinated company activities to ensure efficiency and compliance with company policy. Supervised administrative staff, prepared reports, and supported the sales and marketing team to meet organizational goals.
Receptionist
Archbuild Limited
Sep 2017 - Sep 2019 (2 years)
Answered and directed phone calls, greeted and welcomed clients, and maintained the reception area. Assisted with administrative tasks including scheduling appointments and sorting mail.
Education
Degrees, certifications, and relevant coursework
KIPS Technical College
Diploma, Food and Beverage Service and Sales Production
2019 - 2020
Studied Food and Beverage Service and Sales Production from 2019 to 2020.
Softech Institute of Computer Studies
Certificate, Computer Studies
2015 - 2015
Earned a Computer Studies Certificate in 2015.
Peter Kibukosya Secondary School
Kenya Certificate of Secondary Education, General Studies
2011 - 2014
Completed secondary education and obtained the Kenya Certificate of Secondary Education (KCSE) from 2011 to 2014.
Mwangaza Primary School
Kenya Certificate of Primary Education, General Studies
2003 - 2010
Completed primary education and obtained the Kenya Certificate of Primary Education (KCPE) from 2003 to 2010.
Moringa School
Software Engineering Course, Software Engineering
2023 -
Completed a Software Engineering course in 2023.
Tech stack
Software and tools used professionally
Availability
Location
KenyaAuthorized to work in
Salary expectations
Skills
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