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Software Engineer III | Security

ExtraHop
UKRemotefull_timeVerifiedPosted 27 Feb 2026
💰 $149,000/yr($125,000/yr$149,000/yr)

About the role

ExtraHop is reinventing Network Detection and Response (NDR) to help enterprises and organziations stay ahead of emerging threats with unmatched network visibility, context, and control.

Today’s attackers bypass traditional security defenses through identity-based entry, move invisibly across cloud, on-premise, and data center networks using encryption and trusted applications, and exploit and exit whenever they want.  But all of that movement is visible on the network... if you can see it.

By combining the power of NDR with Network Performance Management (NPM), Intrusion Detection Systems (IDS), and forensics in a single, integrated platform, ExtraHop can decrypt and unlock complete packet-level data at wire speed, analyze and correlate it across all your networks, applications, devices, and users with cloud-scale machine learning, and provide a single interface to the SOC to detect, investigate, and remediate modern cyber risks in real time.

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

  • Analyze network data in order to simulate realistic cybersecurity scenarios.
  • Create network content to support security demo and test environments.
  • Collaborate with cross-functional teams to ensure content aligns with customer needs and product goals.
  • Develop and maintain scripts and tools to enhance demo functionality and automation.
  • Troubleshoot and resolve issues to ensure a seamless and reliable demo experience.

Required Qualifications

  • Excellent engineering chops
  • 5+ years of experience in software engineering
  • Solid knowledge of Javascript and Python
  • Strong understanding of TCP/IP and Layer 7 protocols
  • Experience developing solutions using cloud-native technologies
  • 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 in a scripted manner, using tools like tshark, tcpdump, tcprewrite, and Scapy to directly interact with this data.
  • Knowledge of cloud and on-premise cybersecurity threat models - attacker behavior, tools, techniques, and practices. Ability to translate this knowledge into realistic scenarios and simulations.
  • Comfortable interacting with stakeholders in a variety of roles, from R&D to Sales and Marketing.

 

The salary range for this role is $125,000 - $149,000 + bonus + benefits.

ABOUT EXTRAHOP:

ExtraHop empowers enterprises to stay ahead of evolving threats with the most comprehensive approach to network detection and response (NDR).  Since 2007, the company has helped organizations across the globe extract real-time insights from their hybrid networks with the most in-depth network telemetry. 

ExtraHop NDR uniquely integrates network threat detection, network performance management (NPM), intrusion detection (IDS), and packet forensics into a single console with 100GB+ sensors, real-time decryption, and cloud-scale machine learning -  delivering complete network visibility, unmatched context for data-driven security decisions, and improved SOC productivity.

ExtraHop is recognized by leading organizations for both its innovation in the market and its commitment to building a world-class team. We are the only NDR vendor recognized as a leader by all major analyst firms including the 2024 Gartner® Magic Quadrant for Network Detection and Response™, the 2023 Forrester® W

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ExtraHop

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