# Principal ML 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. 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 About the role: We are looking for a Principal Backend Engineer to join our team and work on scalable, production-grade systems built with Go. You will contribute to the development of microservices that power core product features, while gaining hands-on experience with modern backend architectu

- **Id**: 4126231
- **Url**: <https://alion.io/job/proofpoint-principal-ml-engineer>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: lead
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: India
- **Countries**: IN
- **Hiring countries total**: 0
- **Experience years min**: 10
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-11T00:00:00Z
- **Employer posted date**: 2026-11-11
- **Last verified at**: 2026-11-12T01:33:05Z
- **Board verified**: yes
- **Days open**: 1
- **Description format**: text
- **Description chars**: 3362
- **Description truncated**: no
- **Benefits**: Flexible schedule
- **Relocation offered**: no
- **Industries**: Information Security, Data Loss Prevention, Email Security, Cybersecurity AI

## Company

- **Id**: 5122
- **Name**: Proofpoint
- **Domain**: proofpoint.com
- **Url**: <https://alion.io/company/proofpoint>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Workday

### Truth index

- **Grade**: A
- **Score**: 87
- **Open postings**: 15
- **Ghost share**: 0
- **Stale share**: 0.533
- **Repost share**: 0
- **Time to fill p50 days**: 39
- **Computed at**: 2026-11-11T05:49:22Z

## Technologies

- **Go** — Optional: no
- **AI Agents** — Optional: yes
- **AWS** — Optional: yes
- **Azure** — Optional: yes
- **Docker** — Optional: yes
- **GCP** — Optional: yes
- **Rest API** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 1

## Requirements

- **Experience years min**: 10
- **Manages managers**: no
- **Security clearance**: no

## Lifecycle

- Event: open; At: 2026-11-12T01:33:05Z

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 1
- **Expected fill days**: 39
- **Reasons**: conf:1, win:early, comp:brand
- **Computed at**: 2026-11-12T03:25:16Z

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.