Jan 2025–Present
Routz
Senior Full-Stack Engineer · Schoolz (Routz Platform)
A fleet-management and school-transportation SaaS platform with admin and client dashboards.
Vue 3Node.js socketsLive chat+3
Available for new projects
Senior Frontend Engineer · Cairo, Egypt
I’m Sayed, I build web products that work
I’m a Senior Frontend Engineer with 10+ years of experience turning complex requirements into usable products. I build Vue and React applications, lead frontend teams, and care about performance, clarity, and the people using the software.
Vue 3 ✓
React ⚛
Vue 3Nuxt 3VuetifyPiniaReactNext.js 16TypeScriptAngularNode.jsExpressNestJSPrismaPostgreSQLStripeSurveyJSGrapesJSCASLnext-intlArabic/English RTLVitestPlaywrightGitHub ActionsDockerWordPressShopifySylius
10+
Years of experience
5
Company roles
100+
Freelance projects since 2010
4
Technical articles
Selected work
01 / Company work
Built as part of a team.
Schoolz / Routz, Untap, AutoTager, Botme, and earlier agency experience.
Dec 2022–Apr 2026
Untap
Senior Frontend Engineer / Frontend Team Lead
A multi-tenant SaaS platform for competitions, innovation programs, and grant management, bringing admin, customer portal, and public-site experiences into one Vue codebase.
Vue 3Multi-tenant SaaSSurveyJS+4
Jan 2022–Dec 2022
AutoTager
Frontend Engineer
An automotive B2B marketplace with admin, client, and dealer dashboards for analytics, inventory, and multi-tenant listings.
ReactB2B marketplaceDashboards+1
Jan 2018–Jan 2022
Botme
Frontend Engineer
An omnichannel chatbot builder with workflow automation, live chat, and commerce experiences.
Vue.jsAngularChatbots+2
02 / Freelance projects
Delivered for clients.
Zads, Fleet Billing, Yanfaa, Wellpal, FundSeer, Kadouscope, and Movex. Products, redesigns, storefronts, and dashboards.
Freelance2024–Present
Zads
Founder & Full-Stack Engineer
A learning marketplace connecting families and learners with nearby teachers. Migrated from Nuxt 3 to Next.js 16 App Router; source is public on GitHub.
Next.js 16ReactTypeScriptNode.jsPostgreSQLPrismaOpen source
Freelance2026
Fleet Billing (lite)
Full-Stack Engineer
Subscriptions and billing for a school-bus operator: operators manage buses and trips and see revenue and seat utilization, while parents pick a plan and pay through Stripe Checkout. A portfolio project with synthetic seed data and Stripe in test mode; source is public on GitHub.
Next.js 16NestJSPrismaSupabase RLSStripeVitestPlaywrightArabic/English
Freelance
Yanfaa
Frontend Developer
A full UI redesign implemented as a responsive HTML and CSS experience.
HTMLCSSResponsive designPerformance
Career
Professional experience
Company roles, from web and commerce development to SaaS architecture and team leadership.
Jan 2025–Present
Schoolz (Routz Platform)
Senior Full-Stack Engineer
- Built the real-time layer end to end: live GPS tracking of active trips and an in-app chat (web backend and frontend plus the mobile apps) connecting operators, passengers, and drivers over custom Node.js socket services.
- Shipped the passenger self-service subscription flow: in-app registration, package selection, and online payment through PayTabs, plus operator workflows for drivers, trips, and billing.
- Integrated mapping and geocoding APIs for route planning, location search, and map interactions.
- Established shared Vue components and composables for a bilingual Arabic and English interface.
Dec 2022–Apr 2026
Untap
Senior Frontend Engineer / Frontend Team Lead
- Led frontend architecture, code reviews, and engineer mentoring.
- Designed the multi-tenant foundation for client theming, permission roles, and runtime configuration.
- Delivered a schema-driven form builder and drag-and-drop page builder on SurveyJS and GrapesJS, then added an AI layer so clients generate forms and pages from a prompt and run AI screening of submissions before judge review.
- Integrated Stripe so clients can charge participants for submissions.
- Improved initial dashboard load time by 40% through Vite build optimization, route-level code splitting, and state-management refactoring.
- Owned frontend security remediation during the ISO 27001:2022 certification: moved auth tokens from localStorage to HTTP-only cookies and replaced vulnerable dependencies until the certificate was granted.
Jan 2022–Dec 2022
AutoTager
Frontend Engineer
- Built data-dense dashboards for administrators, clients, and dealers.
- Developed a vehicle-inspection workflow for photo uploads, condition scoring, and structured reports before publication.
- Turned Figma designs into a reusable React component library.
Jan 2018–Jan 2022
Botme
Frontend Engineer
- Built and improved chatbot-building, workflow automation, live-chat, and commerce features using Vue.js and Angular.
- Contributed to Botme Shops, an automated e-commerce module featured at Facebook F8 Refresh 2021.
- Designed user flows for visual automation and interactive forms.
2014–2018
MoreCreative, Enjaz (KSA), MTC (Qatar), and Webdivs
Frontend / Web Developer
- Designed and built WordPress, WooCommerce, and Shopify websites and storefronts.
- Integrated third-party APIs for client projects.
What I Focus On
The engineering work I bring to product teams, from the first interface to a platform ready to grow.
SaaS Architecture
Structuring shared components, application state, and feature modules so complex products stay maintainable as teams grow.
Real-Time Systems
Building live tracking interfaces with socket services, mapping APIs, and clear operational views for fleet teams.
Frontend Performance
Improving loading and rendering through code splitting, build optimization, and careful state management.
Multi-Tenant Platforms
Building client-specific themes, permissions, and configuration into a shared frontend architecture.
Mini Technical Articles
Brief, high-value write-ups documenting real technical challenges solved, lessons learned, and architectural guidelines established on production platforms.
May 20, 20265 min read
Scaling Vue 3 SaaS Applications for Enterprise Operations
Enterprise scale is about maintainability. Learn how we restructured modular Vue 3 architectures to support highly parallel team deployments and clean code patterns.
Read Article
May 12, 20266 min read
Lessons in Multi-Tenant Frontend Architecture
Building client-specific experiences from a single codebase is a challenge. Discover our runtime dynamic theming and cookie-persisted CASL authorization patterns.
Read Article
May 05, 20264 min read
Real-Time WebSocket Optimization for Fleet Systems
Rendering hundreds of moving vehicles in real-time can crash a browser. Here is how we optimized Leaflet rendering using viewport culling and coordinate debouncing.
Read Article
dev.to
What migrating a Vuetify 2 dashboard to Vue 3 actually took
Read ArticleCairo, Egypt / Working since 2014
Engineering interfaces. Understanding products.
I’m Sayed Esmail, a Senior Frontend Engineer with 10+ years of experience. I build Vue and React applications, lead frontend teams, and turn complex product requirements into interfaces people can use.
Alongside company work
Independent projects
I’m the founder and full-stack engineer behind Zads, a personal education product started in 2024. Explore Zads and Fleet Billing, a school-bus subscriptions and billing project, alongside Yanfaa, Wellpal, FundSeer, Kadouscope, and Movex in my freelance portfolio.
Explore freelance work →Background
Education & languages
Bachelor of Arts, Philosophy
Damanhour University · 2009–2013
Arabic — Native
English — Full professional proficiency
Let’s work together.
For frontend engineering, product interfaces, and team leadership.
5atab.work@gmail.com ↗