Resume

Dada Khalandar

Senior Frontend Engineer & Team Lead

kerry.blig12@gmail.com · Purwakarta, West Java, Indonesia · github.com/syammed2429 · linkedin.com/in/dada-khalandar

Summary

Frontend engineer with 8+ years building real-time, high-performance web applications in React, Next.js and strict TypeScript. Experience in banking, enterprise and SaaS. Focus on rendering performance with Web Workers, accessibility, testing and CI/CD, and on leading small teams through code review and architecture standards.

Experience

Senior Frontend Engineer & Team Lead, Hong Leong Bank

05/2025 to present · Kuala Lumpur, Malaysia (remote)

  • Lead frontend architecture for core web and mobile projects, with modular React, Next.js and strict TypeScript component design.
  • Deliver real-time banking features with WebSocket and SSE pipelines and live state synchronization.
  • Hardened session security with CSP, CORS, JWT, RBAC and payload sanitization.
  • Set up GitHub Actions CI/CD with mandatory Jest unit tests and Playwright E2E suites.
  • Run pull request and code reviews for a team of 5+ developers; set state architecture standards (Zustand, Redux Toolkit).

Senior Engineer, KWSP (EPF)

05/2024 to 05/2025 · Kuala Lumpur, Malaysia (remote)

  • Built frontend features for a platform serving 16M+ members, using React and Next.js (SSR and SSG) with dynamic bundle optimization.
  • Kept dense real-time transaction tables smooth at 60 FPS by moving heavy parsing and filtering into Web Workers.
  • Reduced drop-off in multi-step digital workflows by 28% with clear state machines, accessible forms and WCAG 2.1 AA practices.
  • Cut client-server integration latency by 38% by co-designing RESTful APIs with backend teams.
  • Wrote Jest and Playwright test gates that run in CI.

Senior Engineer, Jensi

07/2023 to 11/2024 · Remote

  • Designed an all-in-one 1:N multi-client agency platform with multi-account switching; cut initial JavaScript by 42% (LCP under 1.2s) with route-level code splitting.
  • Built a productivity suite (tasks, Kanban, sprints, notes, cloud files) synchronized in real time with WebSockets, Zustand and TanStack Query.
  • Added offline support with a PWA service worker and IndexedDB, so work survived network drops.
  • Standardized UI components from Figma into Storybook with Tailwind CSS.

Lead Developer, MirTech

07/2023 to 08/2024 · Remote

  • Led frontend architecture for the SmartRental e-commerce platform with Next.js (SSR and SSG) and headless CMS pipelines; reached 95+ Lighthouse scores.
  • Guided developers through code reviews and mentoring; shipped rental booking and payment flows.
  • Reduced API wait times by 30% with optimized REST and GraphQL payloads and client-side caching.
  • Cut deployment turnaround by 50% with Docker and automated CI/CD.

Front End Developer, Tryp

09/2023 to 12/2023 · Remote

  • Turned Figma designs into accessible React, TypeScript and Tailwind components for storefront and landing pages.
  • Built client-side telemetry and Sentry error tracking, cutting incident resolution time by 45%.

Front End Engineer, ZF Group

02/2022 to 07/2023 · Hyderabad, India

  • Built the Twin Model Builder, a node-and-canvas engineering portal for monitoring and configuring 1,000+ connected industrial devices.
  • Kept canvas node graphs and high-frequency telemetry at 60 FPS by profiling memory in Chrome DevTools.
  • Built collaborative data visualization dashboards with React and Storybook.

Web Developer & Full-Stack Engineer, Freelance & digital agency

07/2018 to 01/2021 · Remote

  • Delivered 15+ production web apps, developer tools and e-commerce platforms for international clients.
  • Improved organic search visibility by 48% with semantic HTML, schema.org data and server-side rendering.
  • Improved Core Web Vitals by about 40% on average through asset, image and caching work.

Skills

Education

Sanjay Gandhi Polytechnic, Diploma in Computer Science Engineering