— Hello, I am

I'm Chebon
Kelvin

Full Stack Engineer

Working Worldwide

I design and build scalable web apps, APIs and mobile products — from Figma concept to production deploy.

  • 7+ years experience
  • 40+ delivered projects
  • Upwork freelance contracts
Chebon Kelvin — Freelance Full Stack Engineer
Chebon Kelvin
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I'm Chebon Kelvin a self-driven full stack engineer working with clients worldwide. Since 2019 I've shipped work across Upwork and global clients — a mix of Web Apps, Mobile Apps, UI/UX Design & Digital Marketing.

Download CV
Websites Visual Identity Development UI / UX Design

MyPortfolio

A selection of shipped projects. Some are missing due to client contracts containing Non-Disclosure Agreements (NDA) — and a few may have gone offline.

Anticipatory SaaS

A production SaaS platform where I work as a full stack engineer — building features end to end across a Django backend and Vue.js frontend.

  • Python / Django
  • Vue.js

Nyumber Platform

A real estate web platform helping users find and list properties — built with React and a modern, responsive interface.

  • React
  • Node.js

Great Rift Run

An event website for the Great Rift Run with registration flows and merch — built on Next.js and deployed on Vercel.

  • Next.js
  • Vercel

Aviv Investment

A stock options investment platform with clean data presentation and a conversion-focused landing experience.

  • Next.js
  • Vercel

Havit Kenya

The official Havit Kenya online store — a full e-commerce build with product catalogue, cart and checkout.

  • WordPress
  • WooCommerce

Helios Africa

Corporate website for a supply company — services, catalogue and enquiry flows presented with a clean business identity.

  • WordPress

Boresha Limited

A web agency website showcasing services and portfolio with a modern, conversion-oriented layout.

  • WordPress

National Vision

A political party website with news, manifesto and membership information for public outreach.

  • WordPress

Express Mart

An e-commerce storefront for a retail brand — fast product browsing built on a modern JavaScript stack.

  • Next.js

AffiliatePro

An affiliate marketing website with content and referral funnels optimised for organic traffic.

  • WordPress

Adanian Event

An event microsite built from my own Figma design — hand-coded and hosted on Firebase.

  • HTML / CSS
  • JavaScript
  • Firebase

Bumba Africa

A brand website hand-built with vanilla web technologies and deployed on Firebase hosting.

  • HTML / CSS
  • JavaScript

EdgeTech

A consulting firm website — services, team and contact, hand-coded and hosted on Firebase.

  • HTML / CSS
  • JavaScript

StJoans Academy

A school website for St Joans Academy Eldoret — admissions, news and school life in one place.

  • WordPress

TheMansAfrica

A web portal hand-coded with vanilla HTML, CSS and JavaScript and deployed on Firebase.

  • HTML / CSS
  • JavaScript

Future Of Work

An initiative website about the future of work in Africa — informative, lightweight and fast.

  • HTML / CSS
  • JavaScript

K.O.A.I Site

An institute website hand-built with vanilla web technologies and hosted on Firebase.

  • HTML / CSS
  • JavaScript

Savio Landscaping

An online shop for a landscaping business — products, services and orders handled through WooCommerce.

  • WordPress
  • WooCommerce

Insinque Africa

A business bureau website for Africa-focused services with a clean corporate presentation.

  • WordPress

Intelliverse AI

A website for an AI products company — positioning, offerings and lead capture.

  • WordPress

Acelitigator

A legal services website with practice areas and client enquiry flows for a litigation firm.

  • WordPress

Agen2.0

A complete product UI designed in Figma — layout system, components and screens ready for development handoff.

  • Figma
  • UI / UX

Aviv Design

UI/UX design for the Aviv investment platform — the same design I later built into the live Next.js site.

  • Figma
  • UI / UX

Adanian Design

Event site concept designed in Figma — from moodboard to dev-ready screens, then shipped to production.

  • Figma
  • UI / UX

Rentfolio I

A real estate social media ad designed for the Rentfolio brand — built to stop the scroll and drive enquiries.

  • Canva
  • Social Ads

Rentfolio II

Second creative in the Rentfolio real estate campaign — consistent brand language, fresh hook.

  • Canva
  • Social Ads

Rentfolio III

Third Rentfolio campaign creative — property-focused visuals tuned for engagement.

  • Canva
  • Social Ads

Online Banner

A display banner advert designed for online placement — bold type and a clear call to action.

  • Canva
  • Display Ad

Kechei Sports

Brand creative for the Kechei sports training centre — athletic energy with clean information hierarchy.

  • Canva
  • Branding

Heavy Machines

Channel art and content branding for the Heavy Machines YouTube channel.

  • YouTube
  • Canva

Procure App

A procurement mobile app designed in Figma — full user flows and screens for an Android build.

  • Android
  • Figma

More work is under NDA — happy to talk through it on a call.

MyExpertise

Full stack development sample

Full Stack Development

End-to-end web applications: scalable backends, clean APIs and fast, responsive frontends. 20+ shipped projects across SaaS, e-commerce and real estate.

  • Next.js, Vue.js, React & Node.js
  • Python/Django, PHP, SQL & MongoDB
  • RESTful API design & integrations
UI/UX design sample

UI / UX Design

12+ design projects in Figma — from wireframes to polished, developer-ready design systems and interactive prototypes.

  • Web & mobile app interfaces
  • Design systems & component libraries
  • Prototyping & dev handoff
Mobile development sample

Mobile Development

Native Android applications and installable progressive web apps designed for performance on real-world networks.

  • Android development
  • Progressive Web Apps
  • App UI design in Figma
Digital marketing sample

Digital Marketing

Promotional videos, social media ads and brand content that converts — across YouTube, Facebook, Instagram and TikTok.

  • Social media ad design
  • Video editing & promos
  • Channel branding & growth

Experience

Upwork

Freelance Full Stack Engineer

2019 — Now

Anticipatory

Full Stack Engineer

2025 — 2026

Nyumber

Full Stack Engineer

2025 — 2026

Limisika Limited

Digital Media Officer

2025

Education

Africa Nazarene University

BSc Computer Science

Paused

eMobilis Training Institute

Full Stack Engineering Course

2018

Kapsabet Boys High School

High School

2014 — 2017

Green Park Academy

Primary School

2010 — 2013

CertifiedCredentials

Verified professional certifications backing the work.

Cisco CCNA

Cisco Certified Network Associate — Cisco Networking Academy

View Certificate

Full Stack Engineering

Full Stack Engineering Certification — eMobilis Training Institute, 2018

View Certificate

ClientWords

What clients say after working with me.

Working closely with him really took our programming to the next level! He thinks about problems, finds solutions, and has awesome morale. Great communication and high work quality and efficiency.

Faizy Jamal
Faizy JamalToons Manager
★★★★★

We hit the end objective and matched the actual design file. I'm happy to work with Code Prolific again going forward.

Manny K
Manny KAxtriontech
★★★★

The work was done quickly and as expected. He was friendly and quick to respond. I'd hire him again without a doubt.

Aniket Patyal
Aniket PatyalGizMonsters
★★★★

Excellent job! He is friendly, fast to respond, and accomplished the job right away. Highly recommended — would definitely hire him again in the future!

Kim Suba
Kim SubaKMS Data Technologies
★★★★★

Let's Build Something
Great Together

I'm available for freelance work through Upwork contracts or direct engagement. No matter how complex your project is — I will deliver.

7+Years Experience
40+Projects Completed
12hDaily Support EST

Get InTouch

Any channel works — I respond as soon as possible.