Engineering Intern, Architecture Platform

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.

This is a 12 week internship program beginning on May 26th 2026 or June 22nd 2026

Location: Onsite (5 days a week) at Headquarters in Sunnyvale, CA

Our Team's Vision:

Illumio's Architecture/Platform team designs the scalable, secure, and resilient systems that power our cloud-based cybersecurity platform. As an Architecture Platform Engineering Intern, you’ll work on foundational infrastructure, distributed systems and analytics ( based on rules, statistics and/or ML/AI) that support Illumio’s mission to empower organizations to contain breaches before they become cyber disasters. This internship offers hands-on experience with cloud-native technologies, architectural design patterns, machine learning, and performance optimization. You’ll collaborate with senior architects and engineers to solve real-world challenges and contribute to the evolution of our platform.

What You'll Do:

• Investigate and implement distributed systems at scale aspects of the cloud-based security analytics platform

• Investigate and implement analytics at scale, using distributed systems concepts and leverage AI/ML to process and surface these to the end users

• Help identify and solve scalability challenges, ensuring the platform can handle increasing loads and larger customer bases

• Understanding of front-end and back-end integration, especially in systems that handle large datasets

• Strong communication and teamwork skills, with the ability to collaborate effectively across teams

• Passion and interest in building efficient, highly scalable systems and improving user experience

• Be empowered to take ownership of your own summer project where you provide technical solutions for real world problems. You will get to own the design, implementation, and quality of your work

• Be an active participant of an existing engineering scrum team. Here you’ll learn Agile development and have daily interactions with your peers

Your Tool Kit:

• Currently enrolled in a full-time Bachelor’s or Master’s degree program in Computer Science, Software Engineering, or a related technical field, with an expected graduation date in Winter 2026 or Spring 2027

• Proficiency in at least one programming language such as Java, Go, Python or Ruby

• Familiarity with web development technologies (e.g., REST APIs, front-end frameworks) is a plus

• Familiarity with applied AI/ML, scaling ML use of LLMs

• Familiarity with Git or other version control systems

• Exposure to or knowledge of scalability, distributed systems, or cloud computing (could be a part of curriculum / coursework)

• Excellent problem-solving, analytical skills, and attention to detail

• Ability to work independently and as part of a team

• Strong communication and interpersonal skills

What You'll Gain:

• Hands-on experience designing and building cloud-native architecture at scale

• Exposure to distributed systems, performance optimization, and real-world infrastructure challenges

• Opportunities to contribute to architectural decisions and technical strategy

• Ownership of a meaningful summer project with mentorship and support from experienced architects

• Daily collaboration with engineering teams and participation in Agile development workflows

• A deeper understanding of how scalable systems are built to support enterprise-grade cybersecurity solutions

• Insight into the latest advancements in machine learning for security, including how AI/ML is applied to enhance threat detection, analytics, and platform intelligence

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.

#LI-PO #LI-ONSITE

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.