
Software Engineer III | Security
ExtraHop · United States
- Hybrid
- Full-time
- $149,000 / year
- United States
Job highlights
- Develop systems for security research teams.
- Emulate adversary behavior using network data.
- Utilize Python and enterprise software skills.
- Work with advanced networking fundamentals.
- Collaborate in a flexible work environment.
About the role
Software Engineer Security
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
- Excellent engineering chops
- 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
Salary Range
$125,000 - $149,000 + bonus + benefits.
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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Key skills/competency
- Software Engineering
- Cybersecurity
- Networking
- Python
- Security Research
- Threat Detection
- Automation
- Cloud Technologies
- Infrastructure-as-Code
- API Development
Skills & topics
- Software Engineer
- Security Engineer
- Cybersecurity
- Python
- Networking
- Threat Research
- Detection Engineering
- DevOps
- Cloud Computing
- Infrastructure as Code
- Enterprise Software
- Remote Work
- Hybrid Work
- Full-time
How to get hired
- Tailor your resume: Highlight your 5+ years of software engineering experience, Python proficiency, and networking knowledge. Emphasize contributions to enterprise software and code quality.
- Showcase cybersecurity expertise: Detail your experience with network fundamentals (OSI, Layer 2-7 protocols) and any packet-level data analysis (tshark, tcpdump).
- Demonstrate problem-solving skills: Use STAR method examples to illustrate your self-starter mentality, ability to learn, and quick iteration on complex problems.
- Prepare for technical questions: Be ready to discuss your experience with deployment pipelines, automation, and cloud-based technologies like Infrastructure-as-Code.
- Highlight collaboration: Emphasize your ability to be an excellent teammate, participate in code reviews, and communicate effectively in writing and speaking.
Technical preparation
Behavioral questions
Frequently asked questions
- What are the key technical skills for a Software Engineer Security at ExtraHop?
- For the Software Engineer Security role at ExtraHop, key technical skills include strong software engineering fundamentals, proficiency in Python, in-depth knowledge of networking (OSI model, Layer 2-7 protocols), and experience with enterprise software development. Experience with packet-level data analysis tools like tshark and tcpdump is preferred, as is understanding TCP/IP and Layer 7 protocols.
- What is the typical work arrangement for a Software Engineer Security at ExtraHop?
- ExtraHop offers fully-flexible work options for their R&D roles, including the Software Engineer Security position. This means you can choose between full-time onsite, hybrid, or fully remote working arrangements, depending on what works best for you and the team's success, with some roles potentially requiring physical access.
- What is the salary range for the Software Engineer III | Security position at ExtraHop?
- The salary range for the Software Engineer III | Security role at ExtraHop is between $125,000 and $149,000 annually, in addition to a bonus and benefits package.
- How important are networking fundamentals for the Software Engineer Security role at ExtraHop?
- Networking fundamentals are critically important for the Software Engineer Security role at ExtraHop. A strong, in-depth knowledge of networking, including the OSI model and key protocols from Layer 2 through Layer 7, is a required qualification for this position.
- Does ExtraHop offer opportunities for professional growth for their Software Engineers?
- Yes, ExtraHop emphasizes individual growth within an exciting, high-energy, and versatile environment. They encourage and support employees in collaborating on industry-leading technology, developing a world-class engineering team, and enriching their individual growth through creativity, intellectual curiosity, and deep critical thinking.
- What kind of projects will a Software Engineer Security work on at ExtraHop?
- A Software Engineer Security at ExtraHop will support Threat Research and Detection Engineering teams by developing tools and automation to accelerate R&D. This includes building software deployment pipelines, data ingestion pipelines for device fingerprinting, threat intelligence systems, on-demand threat research labs using Infrastructure-as-Code, and continuous testing pipelines. You will also work directly with network data to emulate adversary behavior.
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