Full Stack Software Engineer

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

Job summary

Illumio in San Jose, California is seeking a Full-Stack Engineer to build scalable and intuitive user-facing applications. You will collaborate across teams to deliver seamless experiences and optimize application performance.

The ideal candidate has 3-5+ years in full-stack engineering, strong skills in React and Node.js, and a Bachelor's degree in Computer Science. This role includes a commitment to diversity and provides an inclusive workplace.

Qualifications

• 3–5+ years of professional experience in full-stack or UI-focused software engineering.
• Strong frontend experience with modern web technologies.
• Experience building backend services and APIs.

Responsibilities

• Design, develop, and deliver full-stack features.
• Build scalable and responsive web applications.
• Own end-to-end quality, including testing.
• Optimize user workflows and application performance.

Skills

React

TypeScript

JavaScript

HTML5

CSS3

Node.js

RESTful API design

Git

Education

Bachelor’s degree in Computer Science or related field

Master's degree in Computer Science or related field

Tools

Docker

Kubernetes

AWS

Azure

GCP

Job description

Full-Stack Engineer

As a Full-Stack Engineer, you will contribute to building scalable, performant, and intuitive user-facing applications while partnering across engineering, product, and design to deliver seamless end-to-end experiences.

Location

Sunnyvale, California – 5 days a week in office.

Your Impact

• Design, develop, and deliver full-stack features across frontend and backend systems, taking ownership from concept through production deployment.
• Build scalable and responsive web applications using modern frontend frameworks and distributed backend services.
• Contribute to architecture decisions, including frontend infrastructure, CI/CD pipelines, build systems, and application design patterns.
• Own end-to-end quality, including unit, functional, and integration testing, ensuring robust and resilient software delivery.
• Partner cross-functionally with Product Management, Design, and backend teams to refine requirements and deliver high-impact features.
• Optimize user workflows and application performance, ensuring accessibility, responsiveness, and usability across platforms.
• Develop and integrate APIs and services to enable seamless communication across distributed systems.
• Monitor application performance, define metrics, and proactively identify and resolve production issues.
• Continuously improve code quality, maintainability, and developer experience through best practices and tooling.

Your Toolkit

• 3–5+ years of professional experience in full-stack or UI-focused software engineering.
• Strong frontend experience with React, TypeScript, JavaScript, HTML5, and CSS3.
• Experience building backend services and APIs using Node.js, TypeScript, or similar technologies.
• Solid understanding of RESTful API design and distributed system communication patterns.
• Experience with modern build systems, CI/CD pipelines, and frontend tooling.
• Familiarity with version control systems (Git) and collaborative development workflows.
• Understanding of performance optimization, browser rendering, and debugging techniques.
• Knowledge of testing frameworks and best practices across frontend and backend layers.
• Exposure to cloud platforms (AWS, Azure, GCP) and containerization technologies (Docker, Kubernetes) is a plus.
• Bachelor’s degree in Computer Science or related field (Master’s preferred).

Bonus Points

• Experience building microservices or service-oriented architectures.
• Familiarity with accessibility standards (WCAG 2.0+) and inclusive design practices.
• Experience with frontend performance monitoring and metrics (e.g., INP, latency optimization).
• Exposure to large-scale SaaS platforms or cybersecurity products.
• Experience working closely with design systems and component libraries.

Commitment & EEO

Illumio is committed to fostering diversity, equity, and inclusion. We believe that a culture of unique backgrounds, experiences, perspectives, and individual contributions drives our success.

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

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