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Staff Software Engineer role in Infrastructure team at Harmonic, a startup discovery engine. The team powers the ability to process millions of startup signals in real-time, focusing on making the frontend fast, reliable, and scalable as the company grows.
Job Responsibility:
Fix core reliability issues: error boundaries, state management, data consistency
Optimize performance: virtualization for large datasets, bundle optimization, render performance
Build monitoring and observability to catch issues before users do
Establish testing strategies that prevent regressions
Create abstractions and patterns that help engineers ship faster without breaking things
Drive technical decisions and mentor the team through complex migrations
Requirements:
7+ years building frontend applications at scale
Deep expertise in React, TypeScript, and modern build tooling
Track record of fixing production performance issues at scale
Strong opinions on frontend architecture, backed by experience
NYC-based, in office 3 days/week
Nice to have:
Experience with discovery systems, search use cases, recommendation systems (CRM, ATS, etc.), or anything that helps index, document, and make data available for use
Exposure to venture capital, private markets, or company intelligence data
What we offer:
Top of the line health, dental and vision insurance, with 100% premium covered