Summer 2026

Software Engineer Intern

Multiple Teams

Posted on 7/29/2025

Harmonic

Harmonic

51-200 employees

Business intelligence platform for investment sourcing

Compensation Overview

$57.69/hr

New York, NY, USA

In Person

Interns must work in-person in our NYC office early June - late August.

Category
Software Engineering (2)
,
Required Skills
LLM
Python
TypeScript
HTML/CSS
Requirements
  • CS/Engineering junior undergrad with a strong academic record
  • Able to work in-person in our NYC office early June - late August
  • Some prior experience with LLMs, Python, and/or TypeScript
  • Top-tier product taste and unrelenting curiosity
Responsibilities
  • Ship code that powers real decisions: You’ll design and build features that directly shape how top VC firms discover and invest in startups
  • Grow your VC network: You’ll get to attend invite-only events and get exposure to the world’s top VCs
  • Top-tier mentorship: You’ll spend your days with a mix of ex-founders and ex-Google, LinkedIn, Microsoft, and Meta engineers (who are also just incredible human beings)
  • Be part of something early: We’re a lean, high-trust team. We want you to have a seat at the table, influence product decisions, and see how a startup scales from the inside out
  • We sit at the core of Harmonic’s product and data engine. We transform hundreds of fragmented, unstructured sources - from APIs and raw HTML to legal filings - into structured insights on startups, people, and investors. We own the entire pipeline, from large-scale data ingestion to the full-stack search experience that surfaces breakout companies before anyone else
  • We are building the future of startup search and research. We transform massive volumes of structured and unstructured data into dynamic, searchable indices - powering an agentic layer that helps VCs explore, analyze, and automate sourcing and diligence like never before
  • We are building Harmonic’s AI-native hub for VC workflows. One place to source, research, and triage deals. It syncs VCs internal data with Harmonic’s knowledge graph to surface fast, context-rich, actionable insights so VCs can move faster on the best opportunities
Desired Qualifications

Harmonic.ai provides a data-driven platform with a large, up-to-date database of over 20 million companies and 160 million individuals for business intelligence, investment sourcing, and deal flow. It works via a subscription service with a Chrome extension and an API, letting users run hyper-specific searches, get real-time alerts, and collaborate through their team network, with a bulk-import option to feed data directly into a data warehouse. Its strengths come from its extensive dataset, precise search capabilities, actionable alerts, and seamless integration across extensions, APIs, and bulk data delivery. The goal is to help businesses and investors find promising opportunities and make informed, data-driven decisions.

Company Size

51-200

Company Stage

Series A

Total Funding

$30M

Headquarters

San Francisco, California

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • Harmonic raised $17.5M in 2026 to counter AI data harvesting threats.
  • Accel, Greylock, and Notion use Harmonic to discover startups six months ahead.
  • iOS app launched in 2025 enables mobile searches for warm investor leads.

What critics are saying

  • Crunchbase erodes Harmonic's niche with advanced search at scale within 6-12 months.
  • PitchBook causes customer churn via verified private market data in 12-18 months.
  • OpenAI enterprise tools obsolete Harmonic's model for VCs like Accel in 18-24 months.

What makes Harmonic unique

  • Harmonic merges structured and unstructured web data for fresher startup insights than Crunchbase.
  • Harmonic maps LinkedIn, email, calendar, and CRM onto 35M+ companies for contextual networking.
  • Harmonic's investment agent uses LangGraph for automatic market maps and VC pipeline advancement.

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Benefits

Health Insurance

401(k) Company Match

Free Lunch

Company Social Events

Commuter Benefits

Quarterly company-wide offsites

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

2%

2 year growth

6%
Ranzware
Jul 29th, 2025
Harmonic, the Robinhood CEO's AI math startup, launches an AI chatbot app

Harmonic, the robinhood ceo's AI math startup, launches an AI chatbot app.

Evolution AI Hub
Jul 11th, 2025
Robinhood CEO's New AI Startup Nears $1B Valuation to Tackle Math

Harmonic AI raised $100M Series B, valuing it at $875M

DeepNewz
Jul 10th, 2025
Harmonic AI Raises $100M, Valued $875M

Harmonic AI, co-founded by Robinhood CEO Vlad Tenev, has raised $100 million in a Series B round led by Kleiner Perkins. The funding values the Palo Alto-based AI company at approximately $875 million. The funds will be used to expand research teams and accelerate product development.

Intelligence360
Oct 14th, 2024
Harmonic Secures $75M for AI Development

Harmonic announced a $75 million Series A funding round at a $325 million post-money valuation, led by Sequoia Capital with participation from Index Ventures and others. The funding will accelerate the development of Mathematical Superintelligence (MSI), an AI with superior mathematical capabilities. Harmonic's model, Aristotle, achieves 90% on the MiniF2F benchmark. Co-founders Vlad Tenev and Tudor Achim emphasize MSI's potential to overcome AI limitations and advance various fields.

SecurityWeek
Oct 2nd, 2024
Harmonic Raises $17.5M to Defend Against AI Data Harvesting

Harmonic, an early stage startup working on software to mitigate against unregulated AI apps harvesting company data at scale, has attracted $17.5 million in new funding as venture capital investors double down on AI security companies.

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