Member of Technical Staff II - Full Stack

Illumio; Sunnyvale (CA); On-site; USD 100,000 - 130,000; Full time

Job summary

A leading cybersecurity company in Sunnyvale is looking for a Full-Stack Developer. This role involves designing, developing, and testing applications focused on network segmentation. Candidates should have at least 2 years of experience in modern web application development, including expertise in JavaScript, CSS, and React. Passion for innovation and teamwork is essential, as well as a degree in computer science. The position requires onsite work five days a week.

Qualifications

• 2+ years of experience building UI for modern web applications.
• Strong foundation in software engineering and design pattern fundamentals.
• Proven problem-solving skills and the ability to optimize code.

Responsibilities

• Develop products that revolutionize network segmentation.
• Design, develop, and test full-stack applications.
• Enhance the architecture of web applications.

Skills

JavaScript

CSS

HTML

React

Node.js

TypeScript

Cypress

Docker

Kubernetes

Education

Bachelor’s degree in computer science or a related field

Master’s degree

Tools

Redux

TanStack

Reselect

Jest

React Testing Library

ArgoCD

Jenkins

Job description

Onwards Together!

Illumio is the leader in ransomware and breach containment, redefining how organizations contain cyberattacks and enable operational resilience. Powered by the Illumio AI Security Graph, our breach containment platform identifies and contains threats across hybrid multi‑cloud environments – stopping the spread of attacks before they become disasters.

Recognized as a Leader in the Forrester Wave™ for Microsegmentation, Illumio enables Zero Trust, strengthening cyber resilience for the infrastructure, systems, and organizations that keep the world running.

Location: Onsite, Sunnyvale, California (5 days a week in the office)

Our Team's Vision:

Our Engineering team has established a culture based on thought leadership, independence, and responsibility. This powerful dynamic drives us forward as we work to make the digital world a safer place.

Those who join us represent the leader in Zero Trust Segmentation and work on a technology stack that ranges from operating systems to distributed applications to UI and visualization. Together, we will continue to build world‑class products—driven by people with different perspectives, backgrounds, and a commitment to innovation in a time when the world faces its greatest cybersecurity threats in history.

Your Impact:

Innovate and Disrupt: Develop products that revolutionize network segmentation, enhancing the protection of data centers and cloud stacks against attacks.

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  Full-Stack Development: Design, develop, and test comprehensive full‑stack applications using the latest native browser APIs, web servers, and frontend frameworks.

  
  


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  Architectural Contribution: Enhance the full‑stack architecture of web applications, including deployment, configuration, build systems, component libraries, style guides, and responsiveness. Evaluate and adopt open‑source solutions.

  
  


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  User Interaction Optimization: Identify and optimize user interaction workflows across UI applications, ensuring quality and consistency.

  
  


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  User Experience and Design: Collaborate with UI experts to make decisions around user experience and visual design.

  
  


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  Cross‑Team Collaboration: Work with other development teams to improve the usability of cross‑services APIs.

  
  


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  Code Quality Ownership: Implement industry best practices for linting, static typing, unit testing, and functional/integration testing to build robust and resilient products.

  
  


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  Product Partnership: Partner with Product Management to review, refine, and set product goals that exceed customer expectations.

  
  


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  Customer Understanding: Develop a deep understanding of the fundamental problems our customers need to solve through interaction with stakeholders and peers

  
  

Your Toolkit:

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  Education: Bachelor’s degree in computer science or a related field; a Master’s degree is a plus.

  
  


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  Experience: 2+ years of experience building UI for modern web applications and/or custom UI frameworks at scale.

  
  


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  Strong foundation in software engineering and design pattern fundamentals.

  
  


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  Proven problem‑solving skills and the ability to optimize code for the best possible outcomes.

  
  


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  Technical Skills: Experience in modern web application development using JavaScript, CSS, and HTML, including ES6+ syntax, CSS levels, and HTML5+ standards.

  
  


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  2+ years of experience with the React library. Familiarity with tools like Redux, TanStack, and Reselect is a plus.

  
  


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  2+ years of experience with Node.js for building web services and developer tools, including API design, performance optimization, and production deployment.

  
  


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  2+ years of experience with UI quality tools such as TypeScript and Cypress. Knowledge of frameworks like Jest and React Testing Library is a plus.

  
  


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  Experience with Docker, Kubernetes, and deployment pipelines such as ArgoCD and Jenkins is a plus.

  
  


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  Aesthetics and Detail: A keen eye for aesthetics and UI details.

  
  


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  Passion and Growth: Passion for software development, a willingness to constantly learn, stay updated with technological trends, and work effectively in a team setting.

  
  

#LI-PO1 #LI-ONSITE

Our Commitment:

Illumio believes that an environment of unique backgrounds, experiences, viewpoints, and individual contributions drives our success and makes us stronger together. We are dedicated to creating and maintaining a diverse culture and emphasizing inclusion and belonging.

This position involves access to software/technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls

All official job offers from our company are extended directly by our recruitment team and will be sent through an official E‑Signature document for your review and signature. Please be aware that we do not ask for any personal information in the process of extending offers of employment, such as financial details or social security numbers. Upon acceptance of any offer, we will request such information as part of the onboarding process prior to or on your first day of employment, and only after completing a background check through an authorized third‑party vendor. If you receive any communication asking for personal details outside of these processes, please contact us immediately to verify the authenticity of the request. Your security is important to us, and we are committed to a safe and transparent hiring experience.

For roles in San Francisco and Los Angeles: Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring, Illumio will consider for employment qualified applicants with arrest and conviction records.