Staff Software Engineer (Frontend), Infra jobs in United States
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Harmonic · 2 days ago

Staff Software Engineer (Frontend), Infra

positionNew York, NY
timeFull-time
remoteHybrid
senioritySenior Level, Lead/Staff
money$210K/yr - $280K/yr
date7+ years exp

Harmonic is a startup discovery engine dedicated to mapping out the startup landscape. The Staff Software Engineer (Frontend) will focus on optimizing the frontend performance and reliability, mentoring the team, and driving technical decisions to enhance the user experience.

Business Information SystemsInformation TechnologyManagement Information Systems
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H1B Sponsor Likelynote

Responsibilities

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

Qualification

ReactTypeScriptFrontend architecturePerformance optimizationError handlingMentoringCollaboration

Required

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

Preferred

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

Benefits

Top of the line health, dental and vision insurance, with 100% premium covered
401k matching
Free lunch in office
Monthly team dinner (we have a lot of foodies) for each office
Commuter benefits

Company

Harmonic

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Glassdoor3.8
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Harmonic is the complete startup database.
dateFounded in 2020
location
San Francisco, California, USA
people-size51-200 employees
web-link
https://www.harmonic.ai

H1B Sponsorship

Harmonic has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3)
2024 (1)

Funding

Current Stage
Growth Stage
Total Funding
$30M
Key Investors
Sozo Ventures
2022-11-06Series A· $23M
2021-03-01Seed· $7M

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