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ExtraHop

Software Engineer III | Security

Seattle, WA, United States

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Job details

Experience: 5+ years of experience in software engineering
Posting language: English
Posted: Nov 6, 2026

Original job description

At ExtraHop, we’re on a mission to protect and empower the connected enterprise. We reveal what is happening in the very infrastructure that sustains businesses, lives, and communities, and ensure the integrity of networks, data, systems, and processes. Organizations rely on ExtraHop to provide visibility into the cyber threats, vulnerabilities, and network performance issues that evade their existing security and IT tools. With this insight, organizations can investigate smarter, stop threats faster, and keep operations running.

Our mission is fueled by a profound social and moral responsibility to be the best at what we do, ensuring a secure world where everyone can thrive. If this sounds like a place you’d like to spend the next chapter of your career, we’d love to hear from you.

Position Summary

An ideal candidate will have strong software engineering, networking, and cybersecurity fundamentals. This position works with security researchers and developers, developing systems to make them more efficient and effective. You'll deliver impactful solutions that empower research and development, as well as working directly with network data to emulate adversary behavior.

ExtraHop offers an exciting, high-energy, and versatile environment in which people are encouraged and supported to collaborate on industry-leading technology and create a world-class engineering team while they develop and enrich their individual growth. And we're doing it with creativity, intellectual curiosity, and deep critical thinking.

ExtraHop R&D supports fully-flexible work options that include full-time onsite, hybrid, and fully remote working arrangements. Except for a few roles that require physical access, we believe in supporting you in making the choice that works best for you and makes the team successful.

Key Responsibilities

Support Threat Research and Detection Engineering teams by providing tools and automation to accelerate Research & Development.
Develop and support internal systems, including:
Software deployment pipelines supporting continuous delivery
Pipelines for ingestion of new network identifiers to enable fingerprinting of device, software, and cloud services
Threat Intelligence acquisition and sharing
On-demand threat research labs using modern Infrastructure-as-Code and Cloud-based technologies
Continuous Testing and Validation pipelines
Work with a collaborative, dedicated and seasoned team of engineers
Actively participate in code review to ensure quality and uplevel other engineers

Required Qualifications

Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience.
5+ years of experience in software engineering
Excellent engineering chops
Solid knowledge of Python
Experience developing and deploying code for enterprise software applications with emphasis on code quality and maintainability
In-depth knowledge of networking fundamentals, including the OSI model and excellent working knowledge of the key protocols from Layer 2 through Layer 7
Self-starter with a strong problem-solving track record and ability to grow and learn
Excellent teammate and collaborator who can iterate on problems quickly.
Proficient at communication in both spoken and written forms, including documentation.

Preferred Qualifications

Experience working with network packet-level data using tools like tshark, tcpdump, tcprewrite, and Scapy to directly interact with this data.
Strong understanding of TCP/IP and Layer 7 protocols

Compensation & Benefits: The salary range for this role is $150,000 – $163,000 per year, plus eligibility for an annual performance-based discretionary bonus and stock option grants. We offer a comprehensive benefits package including medical, dental, and vision coverage (effective Day 1), a 401(k) with employer match, flexible PTO, parental leave, and more.

ABOUT EXTRAHOP

ExtraHop is reinventing Network Detection and Response (NDR) to offer enterprises unparalleled visibility, context, and control against emerging threats. The platform integrates NDR with Network Performance Management (NPM), Intrusion Detection Systems (IDS), and forensics, providing a single, comprehensive solution. By decrypting and analyzing complete packet-level data at wire speed and leveraging cloud-scale machine learning, ExtraHop empowers Security Operations Centers (SOCs) to detect, investigate, and remediate modern cyber risks in real time across their entire hybrid infrastructure, including data center, cloud, and SASE environments.

This comprehensive approach and market innovation have earned ExtraHop unique recognition as the only NDR vendor acknowledged as a leader by all major analyst firms, including the 2025 Gartner® Magic Quadrant for Network Detection and Response™, the 2025 Forrester® Wave for Network Analysis and Visibility, the 2024 IDC® Marketscape for NDR, and the 2025 Gigamon® Radar Report for Network Detection and Response. Since 2007, ExtraHop has consistently helped organizations worldwide extract in-depth network telemetry and contextual insights, affirming its commitment to protecting and empowering the connected enterprise.

OUR VALUES

Our culture is rooted in our five Values. These set the expectations for how we work individually and collectively as a team.

Lead with Purpose: We are driven to deliver results that create a positive impact for our customers, partners, and colleagues.

Act with Integrity: We operate with transparency, authenticity, and always in the best interest of the company.

Find a Way: We are resourceful, tackle hard problems with a sense of urgency and ownership, and do what it takes to get the job done.

Innovate: We listen to customers, partners, and the market, and respectfully push boundaries and challenge the status quo.

Share Success: We run together, we win together. We value diverse perspectives, hold space for all voices, and achieve the best results as a team.

BENEFITS

Employees' wellbeing is top of mind for the ExtraHop team. Employees and their families will have the option to participate in the following benefits:

Health, Dental, and Vision Benefits
Flexible PTO, Sick Time Prorated Based on Date of Hire, and All Federal Holidays (US Only) + 3 Days of Paid Volunteer Time
Non-Commissioned Positions may be eligible to participate in the Annual Discretionary Bonus Plan
FSA and Dependent Care Accounts + EAP, where applicable
Educational Reimbursement
401k with Employer Match or Pension where applicable
Pet Insurance (US Only)
Parental Leave (US Only)
Hybrid and Remote Work Model

Our people are our most important competitive advantage, leading the charge against cyber criminals. Join the fight today!

To learn more, visit our website or follow us on LinkedIn.

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