Lead Front End Engineer

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.

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

This is a hybrid role based out of our Sunnyvale office. It is not a remote role.

Proofpoint is a leading cybersecurity company protecting organizations’ greatest assets and biggest risks: vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web.

We are singularly devoted to helping our customers protect their greatest assets and biggest security risk: their people. That’s why we’re a leader in next-generation cybersecurity. Protection Starts with People.

We’re looking for an engineer who loves building from the ground up - someone who enjoys turning ideas into working systems, cares deeply about quality, thrives in a fast-moving, collaborative environment. You’ll join as an early team member and help shape both the product and culture from day one

• Work closely with designers to implement intuitive, elegant, and clear user interfaces.

• Develop reusable UI components and front-end infrastructure to accelerate product development.

• Optimize client performance and ensure accessibility across browsers and devices.

• Test thoroughly, cover edge cases, identify bugs, and resolve issues to ensure high quality, performant software

• Collaborate with backend team to think holistically about how we present product features to customers

• Minimum 5 years of professional experience building production-grade web applications end-to-end.

• Expert knowledge of Type Script/JavaScript, React/Vue/NextJS, Redux or similar state management and modern web tooling.

• Strong foundation in HTML, CSS, and component-based styling approaches (e.g. Styled Components, Emotion, Tailwind).

• Proven ability to optimize rendering, bundle size, and runtime performance.

• Hands-on experience setting up build pipelines, testing frameworks, and CI/CD for frontend systems.

• Enjoy iterating quickly to deliver polished, user-focused features.

• Experience with AI-assisted development tools such coding assistants etc.

• Familiarity with python, backend frameworks is a plus

• Bonus - Experience building agentic AI applications leveraging LLM frameworks, MCP servers; AI engineering experience

As a customer focused and driven-to-win organization with leading edge products, there are many exciting reasons to join the Proofpoint team. We believe in hiring the best the brightest and cultivating a culture of collaboration and appreciation. As we continue to grow and expand globally, we understand that hiring the right people and developing great teams is key to our success!

We are a multi-national company with locations in many countries, with each location contributing to Proofpoint’s amazing culture! #LI-AN1

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…