Frontend Engineer at Happy5 Pte. Ltd.

Frontend Engineer at Happy5 Pte. Ltd.

Worked on enterprise-scale performance management systems, delivering critical frontend features, optimization improvements, and rapid issue resolution for major clients.

Topics

#Professional Experience #Frontend Engineering #Enterprise Software #Startup #Software as a Service #SaaS

Stack

React JavaScript TypeScript Zustand TanStack Query TailwindCSS SCSS Cypress Storybook

Overview

Happy5 is an AI-powered performance management platform that unifies goal tracking, project management, and employee performance reviews. It enables organizations to align goals, work, and performance in one fully customizable platform. Supports multiple goal frameworks including OKRs, MBOs, and KPIs, with integrations to tools like Jira for comprehensive visibility into strategic alignment from executive level to individual contributors.

Responsibilities

  • Collaborated directly with customer success and product teams to resolve production issues and critical bugs within short turnaround times, especially during high-pressure operational periods.
  • Developed and improved core platform features related to:
    • Formal performance reviews
    • Talent analytics
    • Employee performance management
  • Implemented optimization features such as CSV import processing for handling large datasets efficiently.
  • Participated in sprint planning and cross-functional collaboration with frontend engineers, backend engineers, designers, and stakeholders.
  • Contributed to feature delivery and maintenance for enterprise clients including:
    • BNI
    • BCA
    • Tiket.com
    • Biofarma
    • BSI

Impact

The primary goal of the role was to maintain and improve Happy5’s User Performance Web Application while ensuring rapid and effective feature delivery for enterprise-scale clients.

Key contributions included:

  • Improving workflow efficiency for large organizational datasets
  • Supporting business continuity through fast bug resolution
  • Enhancing performance review and analytics functionality
  • Maintaining product stability during critical operational periods

Key Takeaways

  • Experience working in enterprise SaaS environments with real-world operational pressure.
  • Strengthened collaboration skills across engineering, product, and customer-facing teams.
  • Improved ability to deliver scalable frontend solutions under tight deadlines.
  • Gained experience optimizing data-heavy frontend workflows for productivity and usability.