Software Engineer III | Security

ExtraHop Networks; Seattle (WA); Hybrid; USD 150,000 - 163,000; Full time

Benefits offered by this job

Medical, dental, and vision

401(k) with employer match

Flexible PTO

Parental leave

Stock options

Job summary

ExtraHop is hiring a software engineer who will work with security researchers and developers to build systems for efficient threat research and detection. You will contribute to pipelines, threat intelligence, and lab environments using modern cloud-based technologies.

The role emphasizes Python programming, networking fundamentals, code quality, and collaboration within a high-energy R&D team. Hybrid/remote options are available, with a strong focus on security outcomes.

Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, or related field, or equivalent experience.
• 5+ years of experience in software engineering.
• Solid knowledge of Python.
• Experience developing and deploying code for enterprise software with emphasis on quality.
• In-depth knowledge of networking fundamentals, OSI model, and Layer 2–7 protocols.
• Self-starter with strong problem-solving and learning ability.
• Excellent teammate and collaboration skills with strong written and verbal communication.

Responsibilities

• Support Threat Research and Detection Engineering teams with tools and automation.
• Develop and support internal systems and pipelines for ingestion of network identifiers.
• Threat intelligence acquisition and sharing.
• On-demand threat research labs using IaC and cloud technologies.
• Continuous testing and validation pipelines.
• Collaborate with a seasoned engineering team and participate in code reviews.

Skills

Python

Networking basics

Software engineering

Code review

Documentation

Collaboration

Education

Bachelor’s in CS/CE

Tools

tshark

tcpdump

Scapy

tcprewrite

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 datato 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:
• 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
• 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!

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in ExtraHop’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.