Senior Software Development Engineer in Test, Corelight
Network Security, Apps
$153-188k
+ Equity
Network & cloud security
Open for applications
Network & cloud security
201-500 employees
Open for applications
$153-188k
+ Equity
201-500 employees
Company mission
To help defend the world's most sensitive, mission-critical organisations.
Role
Who you are
- Action-Oriented Problem Solving: You thrive in fast-paced environments and can drive testing efforts across multiple projects, even when timelines are ambiguous
- Global Collaboration: You are a proactive communicator who enjoys working with geographically distributed teams across the USA and India
- Cross-Functional Partnership: You can effectively partner with Engineering, Product Management, and QE teams to ensure total test coverage
- Technical Leadership: You take ownership of the "User Experience" from a quality perspective, ensuring our products scale as our customers' codebases grow
- Industry Experience: 5–10 years of experience in an SDET or heavy automation role
- Automation Mastery: High proficiency in Python and Bash for framework development and utility scripting
- Cloud & IaC Expertise: Hands-on experience with at least one major cloud provider (AWS, Azure, GCP) and Infrastructure as Code tools (Ansible/Terraform)
- Linux Administration: Solid experience with RHEL/Ubuntu environments for setting up complex test beds
- Network Protocol Depth: Strong working knowledge of TCP/IP, HTTP, DNS, SSL/TLS, Kerberos, and SMB
- Differentiators: Experience with Docker/Kubernetes, Zeek scripting, CI/CD optimization, or prior exposure to Corelight Fleet Manager
- Education: Bachelor of Science or equivalent experience
What the job involves
- As a Senior SDET at Corelight, you will be the architect of the trust we build with our customers. In this role, you aren’t just "checking code"—you are building the sophisticated automation and infrastructure that validates our cutting-edge network security applications. By simulating complex network traffic and stress-testing our Zeek, Suricata, and YARA integrations, you ensure that our defenders have the most reliable tools in the industry to disrupt global cyber attacks
- Architect Automation Frameworks: Design, develop, and maintain scalable automated test frameworks and scripts using high-proficiency Python and Bash
- Build Infrastructure as Code: Implement and manage dynamic test environments across major cloud platforms (AWS, Azure, and GCP) using Ansible and Terraform
- Validate Security Logic: Develop security-focused integration tests to ensure the peak functionality of core tools including Zeek, Suricata, and YARA
- Automate Artifact Deployment: Streamline the deployment and configuration of critical test artifacts, including Snort and Sigma rule sets
- Network Traffic Analysis: Perform deep-dive analysis of network protocols (TCP/IP, HTTP, DNS, SSL/TLS) to design robust, realistic test scenarios that mirror real-world production constraints
- Integrate CI/CD: Manage test code and environments within Git, ensuring seamless integration into our continuous delivery pipelines
Our take
Corelight is a software company that integrates machine learning into cyber and cloud security. It develops NDRs (Network Detection and Response systems) alongside virtual, software and cloud sensors to better protect enterprises and institutions.
The company's most popular product is the Zeek Network Security Monitor, which is used by the likes of Amazon and Mozilla. It is also continually developing new products (such as a Cloud Sensor for Amazon Web Services) as the nature and complexity of cyber threats continue to grow.
Launched back in 2013, the company has been around for a while now, but it continues to keep up to date with the changing market. In 2024, Corelight secured immense Series E funding as it capitalises on the booming AI and cyber defense markets.
Freddie
Company Specialist at Welcome to the Jungle
Insights
10% employee growth in 12 months
Company
Funding (last 2 of 5 rounds)
Apr 2024
$150m
SERIES E
Sep 2021
$75m
SERIES D
Total funding: $309.2m
Company HQ
Financial District, San Francisco, CA
Leadership
Brian Dye
(CEO)Former CPO of the company. Prior to this, they were EVP of Corporate Products at McAfee, Group VP and GM of the Mobile Platforms Group at Citrix, and SVP of Information Security at Symantec.
Seth Hall
(Co-Founder & Advisor)Currently an Affiliated Researcher at Lawrence Berkeley National Laboratory. Previously Research Engineer at ICSI and Team Member at Dragon Research Group.
Vern Paxson
(Co-Founder & Chief Scientist)Previously Director of the Networking Security Group at ICSI.
Robin Sommer
(Co-Founder)Currently Affiliated Researcher at ICSI and Lawrence Berkeley National Laboratory. Previously General Chair at the IEEE International Symposium on Security and Privacy.
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