Software Engineer III; UI

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

Corporate Overview
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. Proofpoint.

Software Engineer

We’re looking for a Software Engineer to help design and build modern, user-focused web applications. You’ll work primarily on the frontend using React and modern JavaScript, collaborating closely with product, design, and backend teams to deliver reliable, scalable features. You’ll take ownership of meaningful pieces of the product, contribute to shared UI foundations, and help ensure our applications perform well in real-world, production environments.

Key Responsibilities

• Design and build modern web interfaces using React, Node.js, and related frameworks.

• Collaborate cross-functionally with product, design, and backend engineers to deliver scalable and secure features.

• Develop and maintain reusable components and UI libraries to ensure consistency and performance across the platform.

• Integrate with backend APIs and data services, ensuring security, performance, and reliability.

• Apply secure coding practices in frontend development, with awareness of common web vulnerabilities and OWASP Top 10 principles

• Leverage AI-assisted development tools as part of an AI-First engineering environment to improve productivity and code quality

• Own features end-to-end — from concept to deployment — and iterate rapidly based on customer and user feedback.

• Contribute to automation, CI/CD, and testing pipelines to ensure high release velocity and quality.

• Continuously learn and adapt as customer requirements, AI capabilities, and security needs evolve.

Preferred Qualifications

• Proficiency in React, including modern patterns such as hooks, component composition, and controlled state

• Familiarity with Node.js in support of local development, build tooling, and frontend workflows.

• Experience integrating with RESTful APIs

• Strong understanding of JavaScript fundamentals (closures, async/await, promises, event loop) and how they impact UI performance.

• Experience writing unit and integration tests (Jest, React Testing Library, Cypress, Playwright)

• Experience working with design systems or shared UI component libraries.

• Strong problem-solving skills, ownership mindset, and ability to thrive in a fast-moving environment.

• Must have a minimum of a Bachelor of Science degree from an accredited school in an engineering related field.

Nice to Haves

• Experience with Micro-Front Ends and distributed UI architectures

• Hands-on experience with Material UI or similar design systems.

• Familiarity with observability…