---
title: 'Senior Software Engineer (Browser Extension) at Cyberhaven'
canonical: 'https://feeny.ai/job/senior-software-engineer-browser-extension-cyberhaven-united-states-27vvd17yzq86'
type: 'job'
last_seen: '2026-09-10'
---

# Senior Software Engineer (Browser Extension) at Cyberhaven

- **Company:** Cyberhaven
- **Location:** United States
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-08-24
- **Last confirmed live:** 2026-09-10
- **Apply:** https://jobs.ashbyhq.com/cyberhaven/9ddc698c-ad4a-4444-85c1-e3fe86c8e429

## Job description

## About the Role

Cyberhaven is redefining data security by understanding how data flows across organizations. Our browser extension is a critical component of this vision, enabling visibility and control at the point where users interact with web applications. We’re looking for an experienced engineer to help build and enhance our extension, ensuring it’s secure, performant, and deeply integrated with our platform. You’ll join our Browser Extension team and collaborate closely with both the endpoint agent and backend teams to deliver a seamless experience across devices and environments.

## What You’ll Do

- Design, build, and maintain a robust browser extension for Chrome, Edge, and other major browsers using Manifest V3 and modern APIs.
- Implement features that securely interact with web content and backend services, ensuring compliance with security best practices.
- Optimize performance and reliability across diverse environments and user workflows.
- Work closely with the endpoint agent and backend teams to ensure tight integration and consistent functionality across endpoints and services.
- Stay ahead of evolving browser APIs, security standards, and extension ecosystem changes.
- Participate in code reviews, testing, and continuous improvement of development processes.

## Who You Are

- You have extensive experience in software engineering: coding, testing, debugging, and automating complex TypeScript/JavasScript applications
- You're comfortable digging into third-party web applications you don't control — inspecting network traffic, DOM structure, and client-side code to understand how a page works
- You have the ability to learn new technologies quickly and are eager to do so — especially as browser extension platforms and manifest specs continue to evolve
- You focus on correctness, performance, and reliability of background processes
- You have excellent communication skills,
- You are able to work self-sufficiently at times with minimal direction.
- You can coordinate work effectively between yourself and developers working on non-browser platforms.

Bonus points

- You have hands-on experience building or maintaining browser extensions (Chrome/Chromium Manifest V3 experience strongly preferred; Firefox/Edge a plus), including background scripts, content scripts, and extension messaging patterns
- You understand the security model of browser extensions - permissions, content security policy, isolated worlds, and safe communication between contexts
- You have experience building cybersecurity products or features, such as DLP (Data Loss Prevention), DSPM (Data Security Posture Management), or similar security/compliance tooling

Joining Cyberhaven means joining the team building Data Security for the Agentic Enterprise. Traditional tools fall short. Cyberhaven traces the full lifecycle of your data, adapting protection to changing context, so protection moves with the way people actually work, not against it. AI Changed Work. We Protect It. Backed by $250M from leading investors like Khosla and Redpoint, our team includes leaders who built industry-defining technologies at CrowdStrike, Palo Alto Networks, Meta, Google, and more. This role lets you shape the future of data security, working alongside people driven to protect workflows, not just data, for customers who cannot afford to slow down to stay safe. AI Tools Disclosure: As part of Cyberhaven's hiring process, we use recruiting tools that include AI-powered features to help with tasks like scheduling, note-taking, workflow automation, and other recruiting activities ("AI Tools"). The AI Tools may process information you provide during the application and interview process. When AI-assisted interview note taking is used, candidates are notified in advance and have the option to opt out of the AI-assisted interview note taking. Cyberhaven is committed to creating a diverse environment and is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

## About Cyberhaven

## Company Overview
- **One-liner**: Cyberhaven provides an AI-native data security platform that unifies Data Loss Prevention (DLP), Data Security Posture Management (DSPM), Insider Risk Management (IRM), and AI Security to protect sensitive data across endpoints, cloud, SaaS, and AI tools.
- **Entity Type**: Private (Venture Capital-backed)
- **Headquarters**: Mountain View, California, USA
- **Founded**: 2016
- **Founders**: Dr. Volodymyr Kuznetsov (CEO), Nishant Doshi (CTO)

## Core Business
- **Primary industry**: Cybersecurity (Data Security, AI Security)
- **Target customers**: B2B, Enterprise, Mid-Market
- **Mission or purpose statement**: To secure data and secure AI, enabling organizations to protect their most sensitive information wherever it lives and goes, without blocking innovation.

## Products & Services
- **Cyberhaven AI & Data Security Platform**: A unified, AI-native platform that combines Data Loss Prevention (DLP), Data Security Posture Management (DSPM), Insider Risk Management (IRM), and AI Security. The platform uses a unique "data lineage" technology to trace the full lifecycle of sensitive data—where it originates, how it moves, and who uses it—across endpoints, cloud, on-premises, SaaS, and AI tools.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (private company).
- **Key Metric**: Total Funding raised (amount not specified in search results, but backed by notable investors).
- **Notable Investors/Partners**: The company is backed by prominent venture capital firms, though specific names were not detailed in the provided search results. Leadership includes a VP of Engineering from Meta and a former CIO/author Mark Settle on the team.
- **Growth Signals**: The company has a significant global presence with offices in Mountain View (HQ), Austin, Denver, Bangalore, Romania, and Switzerland. It employs 237 total employees, with 125 in Product + Tech roles, indicating a strong engineering focus. The company is actively hiring across multiple roles (Engineering, Sales, Support), signaling growth.

## Competitive Advantages
- **Data Lineage Technology**: Cyberhaven’s core differentiator is its "data lineage" technology, which records every event for every piece of data (moves, copies, edits, shares) to understand its full context and risk, rather than just monitoring at the perimeter.
- **Unified Platform**: It combines DSPM, DLP, IRM, and AI Security into a single platform, providing comprehensive visibility and control that competitors often offer as separate, siloed products.
- **AI-Native Approach**: The platform is built from the ground up to handle the complexities of AI tool usage (shadow AI, data leaks to LLMs), a rapidly growing and critical market need.

## Strategic Focus
- **AI Security Leadership**: Cyberhaven is heavily focused on enabling secure AI adoption. A key priority is helping enterprises understand and control "shadow AI" usage, assess AI risk posture, and prevent data leaks to AI tools without blocking productivity.
- **Unified Data Security**: The company is moving away from siloed security tools, aiming to be the single, unified platform for all data security needs, from discovery and classification to real-time protection and insider threat detection.
- **Global Expansion**: With offices in the US, Europe, and India, the company is scaling its global workforce to support a growing international customer base.

## Why Work Here
- **Culture & Values**: Cyberhaven describes its employees as "Tracers," emphasizing a culture of curiosity, creativity, and drive. The company values solving ambitious challenges at the intersection of AI, security, and scale.
- **Work Policy**: Cyberhaven offers a hybrid work model. Employees within 45 miles of the Bay Area (Mountain View) or Austin offices are expected to work on-site 2 days a week. Remote roles are also available for other locations.
- **Global Team**: With hubs in Mountain View (HQ), Austin, Denver, Bangalore, Romania, and Switzerland, the company offers a diverse, global work environment.
- **Engineering Focus**: With over half of its employees in Product + Tech roles, the company is heavily engineering-driven, offering challenging work on a complex, high-scale data platform.

## Sources
1. [cyberhaven.com](https://www.cyberhaven.com/)
2. [cyberhaven.com](https://www.cyberhaven.com/about)
3. [cyberhaven.com](https://www.cyberhaven.com/careers)
4. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/cyberhaven)
5. [builtin.com](https://builtin.com/company/cyberhaven)

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- [Senior Sales Enablement Manager](https://feeny.ai/job/senior-sales-enablement-manager-cyberhaven-united-states-b47zy9f20tcw) — United States
- [Enterprise Account Executive](https://feeny.ai/job/enterprise-account-executive-cyberhaven-philadelphia-wsqrtnbr838c) — Philadelphia, PA
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