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Job details

Frontend Engineer

Halcyon is an adaptive security company focused on stopping ransomware with proprietary prevention engines and AI models. We are a distributed, remote-native team building a world-class anti-ransomware platform and are looking for a mid-level Frontend Engineer to help evolve our React-based UI for dashboards, SOC analyst tools, and asset management systems.

Skills

  • 3–6 years frontend engineering experience with recent work in a React codebase
  • Proficient with modern React patterns (hooks, functional components) and TypeScript
  • Strong knowledge of modern web technologies, state management, and build tools (Vite, Webpack)
  • Experience building applications for cloud-native hosting platforms
  • Working knowledge of modern CSS frameworks and component libraries
  • Familiarity with frontend testing and monitoring practices
  • Comfortable contributing in a remote-first, asynchronous team

Responsibilities

  • Implement features across the security platform UI, including dashboards, alert triage tools for SOC analysts, and asset management interfaces.
  • Collaborate with product, design, and backend engineers to define solutions and align on product requirements.
  • Develop, test, deploy, and monitor React-based frontend applications focused on reliability, security, and performance.
  • Support and improve the client-side rendered React architecture to ensure consistency and responsiveness.
  • Maintain high standards for code quality, documentation, and operational reliability.
  • Participate in design discussions, code reviews, and incident response processes.

Education

  • Bachelor's degree in Computer Science, Software Engineering, or related field preferred
  • Or equivalent professional experience in frontend engineering

Benefits

  • Comprehensive healthcare (medical, dental, vision) with premiums paid in full for employees and dependents
  • 401(k) plan with a generous employer contribution
  • Short- and long-term disability coverage, basic life and AD&D insurance
  • Medical and dependent care FSA options
  • Flexible PTO policy and parental leave
  • Generous equity offering
To read the complete job description, please click on the ‘Apply’ button
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Average salary estimate

$145000 / YEARLY (est.)
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$120000K
$170000K

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Our Mission: Defeat Ransomware Modern defensive cyber solutions, while impressive, have failed in the face of cheap and easy-to-create – and most importantly lucrative – ransomware. High-profile breaches are disguising an ugly fact; the companies ...

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FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$120,000/yr - $170,000/yr
EMPLOYMENT TYPE
Full-time, remote
DATE POSTED
August 29, 2025
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