Software Engineer III
Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Sep 14, 2026. Proofpoint scores B on the Alion truth index.
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
The Role
Proofpoint is looking for a Software Engineer III to join our Unified Detection team, working on building and deploying large-scale threat detection services. Our team employs cutting-edge technology to detect, analyze, and produce intelligence on the latest threats from sophisticated cyber threat actors. Our detection services are foundational components leveraged across Proofpoint's cybersecurity product offerings to protect customers from threats delivered through email, social media, and SaaS applications.
We are looking for an engineer who is developing their professional expertise, writes clean and well-tested code, and is eager to grow within a strong engineering culture. You understand the broader technical ecosystem, take ownership of smaller features and components, and collaborate effectively with your teammates to deliver high-quality work.
We are a fast-paced, high-energy team where you will have the opportunity to learn quickly, contribute meaningfully, and grow your skills alongside experienced engineers.
What you'll do
- Contribute to moderately complex features and components, ensuring your work integrates seamlessly into the larger detection system.
- Write clean, maintainable, and efficient code - leave the codebase better than you found it.
- Begin taking ownership of smaller features or components, ensuring quality through thorough testing.
- Work with minimal supervision on routine tasks, and proactively seek guidance when facing unfamiliar challenges.
- Anticipate potential blockers, communicate risks early, and collaborate with the team to address them within established timelines.
- Collaborate well with teammates - listen actively, incorporate feedback, and contribute constructively to reviews and discussions.
- Actively participate in code reviews and retrospectives, providing constructive input and implementing feedback with a growth mindset.
What we're looking for
- Bachelor's degree in Computer Science or Information Systems (or equivalent practical experience).
- 4+ years of experience developing software, with growing proficiency in Python or Golang.
- Experience working with distributed systems, cloud environments (AWS, Azure or similar), and containerized workloads (Kubernetes, Docker).
- Experience with observability or monitoring tools (Grafana, Kibana, or similar), preferred
- Experience with RESTful APIs, secure coding foundations, and automated testing practices.
- Curiosity about cybersecurity, malware analysis, or threat detection is a bonus.
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 [email protected].
How to Apply
Interested? Submit your application along with any supporting information- we can’t wait to hear from you!