About Us:

Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows. Our mission is simple: safeguard the digital world and empower people to work securely and confidently. Join us in our pursuit to defend data and protect people.

How We Work:

At Proofpoint you’ll be part of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values:

Bold in how we dream and innovate

Responsive to feedback, challenges and opportunities

Accountable for results and best in class outcomes

Visionary in future focused problem-solving

Exceptional in execution and impact

Proofpoint is hiring an Software Engineering Intern to join Satori, our enterprise AI agent platform driving the future of autonomous security operations. Satori delivers security outcomes by orchestrating capabilities across the entire Proofpoint product portfolio and external partners while maintaining governance, explainability, and human oversight.

This role is designed for a current student who is eager to build enterprise-scale AI systems and grow via mentorship from senior staff. This is an application-focused engineering role on a rapidly scaling product with platform characteristics.

You will work on core AI agent capabilities – such as reasoning workflows, memory systems, and guardrails – using Python-based, cloud-native architectures and modern AI agent frameworks. The opportunity for learning and impact is significant.If you are excited by the challenge of translating cutting-edge AI into secure, reliable systems that protect enterprises worldwide, we want you on our team.Your day-to-day- Implement and extend Python-based backend services that power Satori’s core AI agent platform- Assist in the implementation of agent behaviors such as memory, context handling, reasoning workflows, alignment mechanisms, guardrails, and multi-agent workflows- Deliver reliable, well-tested features that support rapid iteration and platform scale- Support operational readiness through documentation, testing, and automation- Collaborate closely with product, applied AI, platform, and engineering teams to ensure the software you deliver is aligned with overarching business needs- Actively seek mentorship and feedback, and contribute positively to a team-first engineering culture through design discussions, code reviews, and architectural conversations

Qualifications Must have

- Entering final year of undergraduate study at a US-based university.

• Majoring in a technical discipline (e.g., computer science, mathematics, physics, engineering) with strong computer science fundamentals- Personal interest in AI agents (e.g. tinkering in your free time, keeping up with the field, using the latest tools, hands-on experience with common concepts like memory, tool use, reasoning, etc.)- Demonstrated learning velocity and curiosity; driven to understand systems beyond surface-level usage and eager to learn enterprise platform-level tradeoffs- Strong collaboration and communication skills, with the ability to learn from and work effectively with cross-functional teams

Nice to have- Proficiency with Python- Familiarity with AI-assisted development tools (e.g., Windsurf, Cursor, Claude Code, etc.)- Interest in agent safety, evaluation, or alignment techniques- Exposure to Docker, Kubernetes, cloud environments, or CI/CD pipelines- Exposure to integrating LLMs, retrieval-augmented generation (RAG), or vector search into applications- Exposure to enterprise SaaS systems or large-scale distributed architectures- Exposure to cybersecurity products or domains

Why Proofpoint?

At Proofpoint, we believe that an exceptional career experience includes a comprehensive compensation and benefits package. Here are just a few reasons you’ll love working with us:

• Competitive compensation

• Comprehensive benefits

• Career success on your terms

• Flexible work environment

• Annual wellness and community outreach days

• Always on recognition for your contributions

• Global collaboration and networking opportunities

Our Culture:

Our culture is rooted in values that inspire belonging, empower purpose and drive success-every day, for everyone.

We encourage applications from individuals of all backgrounds, experiences, and perspectives. If you need accommodation during the application or interview process, please reach out to accessibility@proofpoint.com.

How to Apply

Interested? Submit your application along with any supporting information- we can’t wait to hear from you!