Product engineer · Frontend engineer

I turn product ideas into usable interfaces.

React · JavaScript · Responsive UI · UI/UX · REST APIs

I translate business requirements into responsive, accessible digital products—then refine them for usability, performance, and clarity.

Based in KenyaOpen to frontend & product roles
Portrait of Denis Kelvin Murithi

From business need to polished product.

I don’t start with components. I start by understanding what people need to do, where they get stuck, and what the business needs the interface to achieve.

Then I shape the flow, build the frontend, and keep testing until it feels clear on a phone, a laptop, and everything between.

Portrait of Denis Kelvin Murithi
01Understand the need02Map the experience03Build the interface04Test and refine

What I changed—and why it mattered.

Three product stories with the context behind the interface, the work I contributed, and the outcome the experience was built to support.

  1. 01

    Work context: Frontend contribution at Optemio · Jul 2024 — Jan 2025

    Medilyne

    Context

    A digital health experience built around easier access to medical records and consent-based information sharing.

    My contribution

    I contributed to the frontend and web experience, helping translate the product direction into a clear, responsive interface.

    Outcome

    A more approachable product surface for sensitive, information-heavy healthcare journeys.

  2. 02

    Work context: Responsive website delivery

    Magnem Group Africa

    Context

    The organisation needed a credible digital presence that made its work easier to understand across devices.

    My contribution

    I worked across interface structure, responsive presentation, visual hierarchy, optimisation, and ongoing web maintenance.

    Outcome

    A clearer corporate experience that supports discovery, trust, and day-to-day digital communication.

  3. 03

    Work context: Product interface modernisation

    Sharegivers

    Context

    A caregiving product where navigation, forms, and responsive behaviour need to stay clear for people completing important tasks.

    My contribution

    I modernised interface patterns across layouts, navigation, and forms with accessibility and usability in focus.

    Outcome

    A more consistent product experience designed to feel dependable on both desktop and mobile.

Different organisations. The same care for clarity.

Live website screenshot of Imminent Transcendent Solutions04

Imminent Transcendent Solutions

Responsive agency platform with structured content, landing-page delivery, and cross-device presentation.

FrontendContentSEO
Visit Site
Live website screenshot of Fresh Start Association05

Fresh Start Association

Responsive nonprofit website focused on clear programme discovery, usability, and ongoing frontend refinement.

Responsive UIUsability
Visit Site
Live website screenshot of ARStoAfrica NYE Festival06

ARStoAfrica NYE Festival

Focused event ticketing interface designed to move visitors from event context to purchase.

TicketingConversion UI
Visit Site
Live website screenshot of Auxilium Medical07

Auxilium Medical

Responsive healthcare website with interface maintenance, usability, performance, and search readiness in focus.

FrontendPerformanceSEO
Visit Site

Product delivery, not isolated screens.

I work across implementation, quality, content structure, and stakeholder feedback so the final interface supports the organisation behind it.

Oct 2025 — Present

Imminent Transcendent Solutions

Web Developer · Content Generative Specialist

Own frontend and digital-product delivery across business websites, translating requirements into responsive interfaces and improving accessibility, performance, usability, and SEO.

Feb 2025 — Sep 2025

Selective Outsourcing Solutions

Web Developer · Digital Content Specialist

Developed and maintained responsive websites, improved cross-device consistency and web quality, and supported digital campaigns with structured content workflows.

Jul 2024 — Jan 2025

Optemio

Frontend & Web Development

Contributed to Medilyne’s web experience, supporting the delivery of a digital health product built around access to medical records and consent-based information sharing.

The tools behind the product work.

Frontend Engineering

HTML5CSS3JavaScriptReactResponsive DesignTailwind CSSBootstrap

UI/UX & Figma

FigmaWireframesUser FlowsPrototypesAuto LayoutComponentsDesign Systems

Product Quality

AccessibilityUsabilityCross-browser QAPerformanceSEOResponsive Testing

Integration & Delivery

REST APIsGit & GitHubReusable ComponentsAI WorkflowsPrompt EngineeringStakeholder Collaboration

AMD Developer Hackathon: ACT II

Certificate of completion awarded through lablab.ai for outstanding performance, attendance, and submitting a solution based on Codex, ChatGPT, AMD Developer Cloud, and AMD ROCm.

July 6–13, 2026Certificate ID: CMRS98TG507PDS6013ZE95FUT
View certificate
AMD Developer Hackathon ACT II certificate awarded to Denis Murithi

Need a product-minded frontend engineer?

I’m open to frontend and product engineering roles, contract builds, and UI implementation work.