---
title: 'Security Engineer - Application Security (Senior) at Cogent Security'
canonical: 'https://feeny.ai/job/security-engineer-application-security-senior-cogent-security-united-states-dxg7ychqd220'
type: 'job'
last_seen: '2026-09-07'
---

# Security Engineer - Application Security (Senior) at Cogent Security

- **Company:** Cogent Security
- **Location:** United States
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-09-01
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/cogent-security/dc97904d-a087-407c-adc6-97074c5372e0

## Job description

## ABOUT COGENT

Cogent is an Applied AI Lab building the next generation of AI agents for cybersecurity. AI has fundamentally changed how attacks happen, allowing malicious actors to operate at unprecedented speed and scale. Cogent’s "AI Taskforce" assesses petabytes of enterprise data to remediate these issues before critical breaches occur.

To stay at the cutting edge, we blend frontier research with real-world execution. Alongside our core product work, Cogent Research serves as our applied AI lab, providing the research horsepower needed to make truly agentic security workflows a reality.

Since coming out of stealth, Cogent has experienced rapid growth. We partner with Fortune 500 companies to secure some of the most complex production environments in the world.

We’re backed by Greylock and we’ve built a team with the best minds in applied AI. Our team is comprised of people from:

- Top universities like Stanford, Berkeley, Penn, Duke, Carnegie Mellon, Waterloo
- Preeminent research labs like Deepmind and SAIL
- Unicorn, high-growth companies like Scale AI, Databricks, Stripe, Tesla, Coinbase
- World class cybersecurity experts from Wiz, Abnormal AI, Zscaler

## ABOUT THE ROLE

We're hiring a Senior Application Security Engineer to own the security of the software we build. You'll partner closely with engineering to embed security into the Software Development Lifecycle (SDLC), keep our dependencies and supply chain safe, and make sure the product our customers trust is built on a secure foundation. You’ll also have the chance to influence our product, as an internal SME and early security user, your feedback loop directly shapes what we ship.

## WHAT YOU’LL DO

- Embed security into the software development lifecycle: threat modeling, secure design reviews, and secure-coding guidance that engineers actually adopt
- Own application security testing - code review, SAST/DAST, and triage - and drive issues to remediation rather than just filing them
- Harden our software supply chain: dependency verification, safe dependency management, and CI/CD pipeline security
- Build and automate security tooling and guardrails so security scales with engineering, not against it
- Serve as the internal security SME on product and workflow decisions, and as an early user of what we build
- Partner across all teams on architecture and design so security is a default, not an afterthought

## WHAT WE'RE LOOKING FOR

- 5+ years of extensive security engineering experience within product / application security, upholding the highest Trust standards
- Strong hands-on engineer who ships - you produce and automate, you don't just manage process
- Strong software engineering skills; comfortable working in code across the stack (e.g. Python, Go, Typescript, and/or similar)
- Depth in application/product security: secure SDLC, threat modeling, code scanning, and supply-chain / dependency security
- Fluency with the modern AI landscape and how it’s influencing the security picture - staying up to date with the rapidly changing environment
- Able to flex up and down: strategic when it matters, in the weeds when it counts
- Comfortable being an early security hire at a startup - high ownership, ambiguity, and direct impact

## BONUS POINTS

- Experience securing AI/ML products or agentic systems
- Background contributing to developer-enablement or security-champions programs
- Prior experience as an early security hire or building an AppSec function from scratch

## FOR CALIFORNIA BASED APPLICANTS

The standard base salary range for this position is $100,000 - $300,000 annually. Compensation offered will be determined by factors such as location, job level, job-related knowledge, skills, and experience. Certain roles may be eligible for variable compensation, equity, and benefits.

We are committed to building an inclusive and diverse company. We do not discriminate based on gender, ethnicity, sexual orientation, religion, civil or family status, age, disability, or race.

## About Cogent Security

## Company Overview
- **One-liner**: Cogent Security is an applied AI lab building autonomous AI agents that discover, assess, and remediate enterprise vulnerabilities at machine speed.
- **Entity Type**: Private (Seed / Series A; $11M total funding)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2024
- **Founders**: Vineet Edupuganti (CEO), Geng Sng (CTO), Thanos Baskous (VP Engineering) [cogent.com/about-us](https://www.cogent.com/about-us)

## Core Business
- **Primary industry**: Cybersecurity – specifically vulnerability management and agentic AI for security remediation.
- **Target customers**: Enterprise cybersecurity teams (B2B, mid-market to large enterprises).
- **Mission**: “Prevent breaches using autonomous AI systems that continuously secure systems against AI-armed adversaries operating at machine speed.” [cogent.com](https://www.cogent.com/)

## Products & Services
- **[Cogent Platform]**: An AI-agent workforce that handles the full vulnerability lifecycle. Modules include **Discover** (identify vulnerable software within minutes of a disclosure), **Assess** (risk scoring based on business context), **Remediate** (from assisted to fully autonomous fix deployment), and **Report** (verified evidence-backed reporting). Type: SaaS platform with embedded AI agents. [cogent.com](https://www.cogent.com/)

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company).
- **Key Metric**: Total funding $11M – Seed round ($11M) led by Greylock Partners (August 2025); subsequent Series A led by Bain Capital Ventures with additional investors. [linkedin.com](https://www.linkedin.com/company/cogentsecurity)
- **Notable Investors/Partners**: Greylock Partners, Bain Capital Ventures. Customers include Alteryx (CISO Lucas Moody), CSC Generation (CEO Justin Yoshimura), University of the Pacific (CISO Mo Bal). [cogent.com/about-us](https://www.cogent.com/about-us)
- **Growth Signals**: 39 employees (as of mid-2025), +14% monthly headcount growth, 29 active job postings, reported 3x increase in vulnerability team output and 97% reduction in exposure window for critical vulnerabilities. [linkedin.com](https://www.linkedin.com/company/cogentsecurity)

## Competitive Advantages
- **Agentic AI approach** that not only detects but also investigates, coordinates, and verifies fixes – reducing the manual burden on security teams.
- **Founding team** from Google DeepMind, Abnormal Security, and Coinbase, bringing deep AI and security expertise.
- **Rapid time-to-value**: 3 hours from onboarding to full vulnerability assessment.
- **Strong customer satisfaction**: 4.9/5 rating from 1,200+ reviews. [cogent.com/about-us](https://www.cogent.com/about-us)

## Strategic Focus
- Scaling AI agent capabilities to cover more vulnerability types and integrate deeper into enterprise workflows.
- Expanding the commercial team (Sales, Solutions Engineering, TAMs) to capture growing demand.
- Advancing research through **Cogent Research**, tackling open problems in dependable autonomy and AI × security. [cogent.com](https://www.cogent.com/)

## Why Work Here
- **Culture**: Values include customer centricity, intentionality, ambition for excellence, extreme ownership, velocity, and intellectual honesty. [cogent.com/company/careers](https://www.cogent.com/company/careers)
- **Remote/Hybrid**: In-person in San Francisco and New York, plus remote options within the US. [cogent.com/company/careers](https://www.cogent.com/company/careers)
- **Engineering Culture**: Engineers and AI researchers sit together; the distance from idea to production is measured in days. Emphasis on shipping production software, not just research.
- **Notable Perks**: 12-week AI Fellowship for graduate researchers and early-career ML engineers; team hails from top companies like Coinbase, Databricks, AWS, Zscaler, and HashiCorp. [cogent.com/company/careers](https://www.cogent.com/company/careers)
- **Growth Opportunity**: Rapidly scaling startup with significant funding, strong customer traction, and a mission-driven focus on one of cybersecurity’s hardest problems.

## Sources
1. [cogent.com](https://www.cogent.com/) – Company overview, product details, customer testimonials
2. [cogent.com/about-us](https://www.cogent.com/about-us) – Founders, mission, team background
3. [cogent.com/company/careers](https://www.cogent.com/company/careers) – Culture, remote policy, AI Fellowship, values
4. [linkedin.com/company/cogentsecurity](https://www.linkedin.com/company/cogentsecurity) – Employee count, funding, office locations, job postings
5. [jobs.ashbyhq.com/cogent-security](https://jobs.ashbyhq.com/cogent-security) – Active job openings
6. Pulse 2.0 (2025-07-16) – “Cogent Security: $11 Million Raised For AI Taskforce For Vulnerability Management”
7. FinSMEs (2025-07-15) – “Cogent Security Raises $11M in Funding”

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