Halcyon · 13 hours ago
Senior Agent Test Automation Engineer
United States
Full-time
Remote
Senior Level
$140K/yr - $180K/yrHalcyon is the industry’s first dedicated adaptive security platform focused on stopping ransomware. They are seeking a Senior Agent Test Automation Engineer to contribute to quality assurance practices, ensuring high-quality code and functionality of their anti-ransomware product across all scenarios.
Artificial Intelligence (AI)ComputerCyber SecurityNetwork SecuritySoftware
Responsibilities
Design, implement, and contribute to validation testing of new product features and bug fixes
Document and develop automated tests aligned to the features we’re developing and bug reports
Design, document, and develop tools to assist with testing
Contribute to and follow our Coding Style guidelines
Able to deliver quality results working autonomously and as part of a unit
Technical documentation of test plans, automation implementation architectures, and test reports
Be a part of the company culture’s growth
Qualification
Required
Ability to develop in Python using the Pytest framework
Test design creativity
Understanding and experience with communications channels such as RESTful API and gRPC
Ability to troubleshoot Windows applications using tools such as debuggers, system profilers, and process monitors
Knowledge and experience using virtualization tools such as VMWare
Familiarity with SQL
Experience testing Windows endpoint agent applications
Experience testing Linux endpoint agent applications
Good written and verbal communication with an ability to write technical documentation
Fast-paced startup, past work experience
Preferred
Past work experience in testing and delivering an enterprise-level security product
Experience with macOS virtualization and testing
Knowledge of the Windows Security Model
Knowledge of the Linux Security Model
Knowledge of the MacOS Security Model
Knowledge of additional languages: Rust, C++
Experience with Windows performance testing and benchmarking
Familiarity with the AWS Cloud
Background using GitHub for CI/CD purposes
Benefits
Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents.
401k plan with a generous employer contribution.
Short and long-term disability coverage, basic life and AD&D insurance plans.
Medical and dependent care FSA options.
Flexible PTO policy.
Parental leave.
Generous equity offering.
Company
Halcyon
Halcyon is an anti ransomware and cyber resilience platform that eliminates the business impact of ransomware.
Founded in 2021
201-500 employees
H1B Sponsorship
Halcyon has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
$190MKey Investors
Bain Capital Ventures
2024-11-25Series C· $100M
2023-12-19Series B· $40M
2023-04-20Series A· $44M
Leadership Team
Jon Miller
CEO and Founder
Ryan Smith
CTO + Co-Founder
Recent News
2026-01-14
2025-12-02
2025-11-08
Company data provided by crunchbase