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Sr. Full Stack Engineer

Remote, USA Full-time Posted 2025-11-09

Description

The browser has become the main productivity tool for employees due to driving trends like working remotely, BYOD, and web-based SaaS applications.

At Seraphic, we are revolutionizing browser security. Our patent-pending technology offers unmatched protection against zero-day attacks, phishing, and malicious downloads. By operating at the core of the browser, we provide comprehensive visibility and control, preventing data loss and leakage.

Why Seraphic?

  • Cutting-Edge Protection: Full defense against all browser threats
  • Seamless Access: Browse internal sites and private applications directly from your browser without a VPN or a remote desktop
  • Innovative Environment: Be part of a team leading the cybersecurity frontier shaping the modern solutions impacting billions of users
  • Challenging Technologies: Engage with a rich SaaS app, high-scale backend processing millions of requests, and a core networking solution, all with the highest level of security
  • Innovation and Leadership: Leverage our patented technology and leadership recognition, such as Frost & Sullivan's 2024 Enabling Technology Leadership Award for Global Zero Trust Browser Security
  • Collaboration and Team: Work with industry experts in a collaborative environment to solve complex problems

This is an exciting opportunity to join a fast-growing start-up company, consisting of talented team players, with the best-of-breed solution revolutionizing browser security.

Join us in shaping the future of secure browsing!

As a Senior Full Stack Engineer at our growing startup, you’ll play a key role in developing our end-to-end Browser Security solution.

What You'll Do:

  • Design, develop, and maintain high-scale backend systems along with client-based components using Node.js / Typescript / React.js
  • Own features through the full development lifecycle in an agile environment
  • Implement complex and efficient client-based agents and on-prem components, including highly secured client-to-server communication
  • Play a key role in architectural and design decisions, building toward an efficient distributed architecture
  • Stay ahead of industry trends, continuously integrating emerging technologies to enhance our solutions
  • Maintain and enforce best practices in code quality, scalability, readability, and performance to ensure robust and maintainable software.
  • Drive feature development from initial requirements through to final delivery
  • Stay updated with emerging technologies, ensuring our solutions remain cutting-edge

Requirements

What You’ll bring with you:

  • 5+ years of development experience, preferably with Cyber Security products
  • Proven experience in designing and developing backend micro-services in Node.js on Typescript, preferably in high-scale
  • Significant knowledge in React.js
  • Familiarity with encryption mechanisms and secure communication practices
  • Proven ability to solve complex issues related to agent-to-client communication
  • Strong problem-solving skills, attention to details and a team-oriented mindset
  • Highly motivated and self-learner
  • B.Sc. Computer Science/Engineering or equivalent knowledge

Nice to have but not a must:

  • Background in cybersecurity, preferably anexperience with EDR systems
  • A start-up working experience, preferably in early stages
  • Familiarity with Kubernetes, containerized apps
  • Browser extension Electron framework development experience

Originally posted on Himalayas

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