Available for senior frontend & full‑stack roles

Chacha Isaac

Chacha IsaacSenior Frontend Engineer

I build scalable, high-performance web and mobile products — from React and Next.js frontends to Go and Node.js services and production deployments on AWS and GCP.

View case studies↗Sample projectsGitHubResume

Snapshot

Senior frontend engineer with 4+ years building production systems used by real users. I care about performance, maintainability, and shipping software that survives real-world usage — not just demos.

Location
Remote · Kenya
Focus
Frontend, mobile, and performance
Stack
React · Next.js · Go · Node.js · RN · AWS · GCP

About

I’m a senior software engineer with over 4 years of hands-on experience designing, building, and shipping web and mobile applications across startups and distributed teams.

I’ve worked across the stack — from React and React Native frontends to Golang and Node.js services and cloud deployments on AWS and GCP. My focus is on building systems that are resilient, observable, and pleasant to work in for both users and engineers.

I enjoy leading architecture discussions, mentoring engineers, and taking products from zero to one and beyond — measuring impact in terms of performance, reliability, and business outcomes.

Recent roles

  • Full Stack Engineer

    Jan 2024 – Present · Remote

    MooveIt Limited

    Designing and shipping full-stack web and mobile experiences with React Native and Go, from architecture through production deployments on GCP, AWS, and Play Console.

  • Senior Frontend Engineer

    Aug 2023 – Sep 2025 · Remote

    Chpter Holdings

    Led modern React/Next.js frontend architecture for an omnichannel commerce platform (WhatsApp, Instagram, Messenger, TikTok), including real-time dashboards backed by gRPC streaming services and performance work that improved page load by ~45%.

  • Frontend Developer

    Sep 2021 – Sep 2022

    Marketforce Technologies

    Built responsive React and Angular applications focused on usability, performance, and scalable component systems for multiple product teams.

Sample projects

A closer look at selected applications in production. These are simplified snapshots you can quickly explore, with deeper case studies above.

Mobile · MooveIt Limited

MooveIt – Instant & Scheduled Delivery App

React Native · Expo · Golang · REST/gRPC APIs · GCP · AWS · Play Store & App Store

MooveIt makes it easier for drivers and clients to move parcels around cities and upcountry with a mix of Uber-style on-demand delivery and scheduled countryside trips.

🚗 Instant delivery flow

For urgent city deliveries, users enter pickup and drop-off locations and are automatically matched to the nearest available driver. Once a driver accepts, the app shows real-time driver movement from pickup to delivery.

🚚 Scheduled & countryside flow

For flexible or long-distance trips, users browse an Available Rides tab with drivers already heading toward specific destinations. They select a ride, attach parcel details (image, receiver name, phone, email), and send a booking request that the driver can accept if it fits their route.

View on Google PlayiOS build available · App Store
MooveIt mobile app – live driver tracking screen

Example in-app screen showing live driver tracking and driver details for an active delivery.

Web Dashboard · Chpter Holdings

Chpter – AI-First Omnichannel Commerce Platform

React · Next.js · TypeScript · gRPC streams · Node.js · Go · PostgreSQL · Redis · AWS

Chpter enables businesses to sell and support customers on WhatsApp and Instagram through AI agents, omnichannel messaging, checkout flows, and marketing automation — all from one unified dashboard.

🤖 AI-powered sales & support

AI agents handle customer queries, process orders, and complete checkouts directly on WhatsApp and Instagram DMs, working 24/7 to respond instantly and personalize every interaction.

🌐 Unified omnichannel dashboard

Merchants manage conversations, orders, and payments across WhatsApp, Instagram, Messenger, and TikTok from a single interface, with real-time updates powered by gRPC streaming APIs.

📈 Marketing automation & analytics

Create WhatsApp campaigns, recover abandoned carts, track revenue, and integrate with Shopify/WooCommerce stores for seamless e-commerce workflows.

Visit Chpter.co↗
Chpter omnichannel dashboard – unified view of WhatsApp, Instagram, and other channels

Merchant dashboard showing unified conversations, orders, and analytics across multiple social commerce channels.

Case studies

Not side projects — production-grade work with real constraints, tradeoffs, and iteration. Each one focuses on how architecture, performance, and DX decisions drove outcomes.

Project 01

Chpter Omnichannel Commerce Dashboard

React · Next.js · TypeScript · gRPC streams · Node.js · Go · PostgreSQL · Redis · Docker · AWS

Led the frontend architecture for Chpter’s merchant dashboard, consolidating WhatsApp, Instagram, Messenger, and TikTok conversations, orders, and payments into a single view.

Impact: Enabled merchants to manage all social commerce channels from one place, while improving key dashboard screens by ~45% in perceived performance under real traffic.

  • Worked closely with backend teams using gRPC and streaming APIs to surface live conversations, orders, and payment events across WhatsApp, Instagram, Messenger, and TikTok.
  • Designed the dashboard information architecture and component system to keep omnichannel data manageable and fast to navigate at scale.
  • Implemented table and chart virtualization, memoized expensive components, and tuned React rendering patterns to keep UI responsive as data volume grew.
  • Introduced a measured rollout strategy and safe deploy practices so new dashboard features could ship behind flags without disrupting merchants.

Project 02

MooveIt Field Operations Mobile App

React Native · Go · REST/gRPC APIs · JWT Auth · GCP Cloud Run · Push Notifications

Owned the mobile application experience for field and operations teams, from offline-first UX to deep integration with Go backend services.

Impact: Improved reliability in low-connectivity environments and reduced support tickets around failed visits, sync conflicts, and missed notifications.

  • Designed an offline-first data model with persisted state and background sync routines for riders operating in low-bandwidth regions.
  • Implemented robust network failure handling with queued mutations, optimistic UI, and conflict resolution strategies so work could continue offline.
  • Integrated secure auth with JWT + refresh tokens and protected routes on both app and API layers, including token refresh flows tuned for mobile.
  • Optimized bundle size, startup time, and navigation flows to keep the app performant on mid-range Android devices used in the field.

Project 03

Chpter Dashboard Performance Deep Dive

React · Next.js · TypeScript · React Query · Lighthouse · React Profiler

Drove a focused performance initiative on key Chpter dashboard screens, profiling real user flows and systematically removing bottlenecks.

Impact: Improved dashboard load and interaction performance by ~45% and documented a repeatable playbook for React performance work that the team could reuse.

  • Constructed stress-test UIs with large virtualized tables, charts, and live updates to surface real performance bottlenecks.
  • Captured before/after Lighthouse scores and React Profiler timelines to reason about the impact of each optimization.
  • Applied code splitting, memoization, and dependency tuning while deliberately avoiding premature micro-optimizations.
  • Summarized findings into a written case study that can be used as a reference during architecture and design reviews.

Tech stack

I prefer boring, proven technology for most problems — and reach for more specialized tools like Go, React Native, or Cloud Run when scale or constraints demand it.

Frontend

  • React, Next.js, TypeScript
  • React Native, Angular
  • Performance optimization
  • Design systems & accessibility

Backend

  • Golang, Node.js, Express.js
  • RESTful APIs, BFF patterns
  • PostgreSQL, MongoDB, Prisma

Infra & DevOps

  • Docker, Git, GitHub Actions
  • GCP (Cloud Run, Firebase)
  • AWS (ECS, S3, RDS)
  • Play Console deployments, CI/CD

Leadership

  • Technical mentorship & reviews
  • Agile delivery & sprint planning
  • Cross-functional collaboration

Contact

I’m most interested in senior frontend or full-stack roles at product-focused startups, growth-stage companies, or remote-first teams. Happy to talk about performance work, design systems, or scaling React / RN codebases.

Email meLinkedIn