Proofpoint Senior Security Engineer in Broomfield, Colorado

Senior Security Engineer

Location:Broomfield, CO


Company Overview

At Proofpoint, we have a passion for protecting people, data, and brands from today’s advanced threats and compliance risks. We hire the best people in the business to:

  • Build and enhance our proven security platform

  • Blend innovation and speed in a constantly evolving cloud architecture

  • Analyze new threats and offer deep insight through data-driven intel

  • Collaborate with customers to help solve their toughest security challenges

We are singularly devoted to helping our customers protect what matters most. That’s why we’re a leader in next-generation cybersecurity—and why more than half of the Fortune 100 trust us as a security partner.

The Role

This is a great opportunity to shape our group-wide security strategy going forward. You will be responsible for diving deep into understanding our end-to-end service architecture and potential security vulnerabilities, and working with our security team and software engineering team to develop/use tools and automation software to identify vulnerabilities, detect potential issues and help us improve resilience to various attack vectors. If you absolutely love tinkering with things, understanding how they work and simply put, love breaking them – then this is a perfect fit. In this new position, you’ll help define the role and the tooling and methodology we use. The main focus in the data path side, i.e. network, less from the user interfaces users interact with. You need to love scripting and automating because you don’t want to do anything twice.

This is a hands-on role where you will be responsible for the entire Secure development lifecycle process. You will own security reviews, risk analysis, penetration testing and implementing solutions jointly with Software engineers across the organization.

Your day-to-day

  • Identify security vulnerabilities in our services and develop mitigation solutions

  • Work effectively with various scrum teams to deliver required security features

  • Develop automation tests to identify security vulnerabilities

  • Evaluate and recommend new and emerging security products and technologies

  • Develop and deliver training for specific security technologies/tools

  • Develop innovative automation that can improve our resilience to various attack vectors

  • Develop your role as a company expert in matters concerning security. This includes being participation at relevant security conferences.

  • Perform Internal penetration tests for various services

What you bring to the team

  • Possess expert knowledge in computer security, threat modeling and penetration testing. In particular deep knowledge of SMTP and HTTP protocols, cryptography, authentication protocols, authorization schemes and security engineering is a must.

  • Demonstrated passion for security

  • Demonstrated expertise in network protocols (primarily TCP/IP, UDP, SMTP, HTTP/S)

  • Experience with automation technologies, using perl, Python, Ruby, bash or other scripting languages

  • Communicates clearly both verbally and in writing, within team and external groups.

  • Can read CVEs and communicate their meaning to the engineering team by translating them into actionable stories

  • Understands and performs the Secure development lifecycle process

  • BS in Engineering, CS or equivalent experience.

Why Proofpoint

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 treating them well is key to our success! We are a multi-national company with locations in 10 countries, with each location contributing to Proofpoint’s amazing culture!


Proofpoint is an equal opportunity employer and welcomes applications from all qualified individuals regardless of race, sex, disability, religion/belief, sexual orientation or age.

Proofpoint does not accept unsolicited resumes from external recruiters or employment agencies. In the absence of a signed Recruitment Services Agreement, Proofpoint will not consider or agree to payment of any recruiter or agency fee. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement, Proofpoint explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.