Software Engineer III

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 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.

Responsibilities Design, develop, and execute functional/performance tests to evaluate system scalability, reliability, and stability.

Develop performance testing frameworks, scripts, and tools using Python or Node.js.

Work closely with development, DevOps, and architecture teams to troubleshoot and resolve performance issues early in the development process.

Create detailed performance test plans, technical documentation, architecture reviews, and performance reports.

Monitor application and infrastructure performance in cloud environments such as AWS, GCP, or Azure.

Integrate performance testing into CI/CD pipelines to ensure continuous performance validation.

Utilize Docker for containerized testing environments and collaborate using GitHub for version control and code reviews.

Implement best practices related to data security, privacy, and secure system design.

Continuously improve performance testing methodologies, tools, and processes.

Required Qualifications 5+ years of experience in functional performance testing or solutions performance engineering.

Strong programming experience in Python or Node.js.

2+ years of hands-on experience working with cloud platforms such as AWS, GCP, or Azure.

Proven ability to debug, troubleshoot, and identify performance issues across distributed systems.

Working knowledge of GitHub, Docker, and container-based environments. Experience working with CI/CD pipelines and automation tools.

Strong technical documentation skills, including writing architecture documents, test plans, and solution designs.

Good understanding of data security and privacy principles.

Bachelor’s degree in Computer Science, EECS, or a related field.

Why Proofpoint

Protecting people is at the heart of our award-winning lineup of cybersecurity solutions, and the people who work here are the key to our success. We’re a customer-focused and a driven-to-win organization with leading-edge products. We are an inclusive, diverse, multinational company that believes in culture fit, but more importantly ‘culture-add’, and we strongly encourage people from all walks of life to apply.

We believe in hiring the best and the brightest to help cultivate our culture of collaboration and appreciation. Apply today and explore your future at Proofpoint!

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
• Flexibl…