Software Engineer - Frontend, Staff+
About the job
- Have operated at Staff+ level (Staff, Senior Staff, or Principal Frontend Engineer) at some point in your career.
- Have at least 5 years of professional software engineering experience.
- Have deep expertise in React, TypeScript, and modern web application architecture.
- Have a strong background in frontend infrastructure, including component libraries, build systems, state management, and performance optimization.
- Demonstrate the ability to work autonomously and own projects end-to-end with minimal oversight.
- Have attention to detail and a passion for engineering craftsmanship.
- Have collaboration and communication skills and thrive in fast-paced, high-impact environments.
- Define core architecture and patterns for web applications to establish long-term scalability and performance.
- Create reusable component libraries and tooling that set quality standards and enable rapid, consistent development across the team.
- Design and deliver high-impact features that integrate AI-powered capabilities, supporting clarity, usability, and reliability in complex security workflows.
- Mentor and provide technical leadership to future frontend engineers, and help grow a team focused on craftsmanship and excellence.
- Uphold high standards of code quality and thoughtful design, balancing speed with sustainable engineering practices.
About the company
Cogent Security provides AI-driven vulnerability management for large organizations. Its core product is an agentic AI platform that automates the entire vulnerability lifecycle, from discovery to remediation, with autonomous agents that correlate data, contextualize assets and vulnerabilities, prioritize risks, and generate remediation plans. It differentiates itself by offering end-to-end automation combined with governance and an auditable action trail, integrating with existing vulnerability management, ticketing, and collaboration tools. The goal is to expand enterprise deployments, accelerate product development, and deliver scalable, automated risk reduction for cyber defense.
Company Size
51-200
Company Stage
Series A
Total Funding
$53M
Headquarters
San Francisco, California
Founded
2024
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Simplify's Take
What believers are saying
- September 2026 Zero Day Response finds exposures within minutes, before scanner signatures.
- February 2026 Series A raised $42 million, totaling $53 million for rapid enterprise expansion.
- Cogent cites dozens of Fortune 1000 customers, including Alteryx and CSC Generation.
What critics are saying
- CrowdStrike and Palo Alto shipped exposure-management automation in August 2026.
- Autonomous remediation creates one bad agentic action away from outage, data loss, or trust collapse.
- If VR-1 underperforms in production, Cogent becomes another pricey workflow wrapper.
What makes Cogent Security unique
- September 2026 VR-1 targets attack-path proofing, not single-vulnerability detection.
- Cogent’s harness enforces customer policy, audit logging, and controlled remediation actions.
- Founders from Abnormal Security, Coinbase, and Google DeepMind bring rare execution credibility.
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Benefits
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Health Savings Account/Flexible Spending Account
Unlimited Paid Time Off
Flexible Work Hours
Remote Work Options
Paid Vacation
Paid Sick Leave
Paid Holidays
Sabbatical Leave
Hybrid Work Options
Stock Options
Company Equity
401(k) Retirement Plan
401(k) Company Match
Performance Bonus
Profit Sharing
Employee Stock Purchase Plan
Relocation Assistance
Employee Referral Bonus
Student Loan Assistance
Parental Leave
Family Planning Benefits
Fertility Treatment Support
Adoption Assistance
Childcare Support
Elder Care Support
Pet Insurance
Bereavement Leave
Professional Development Budget
Conference Attendance Budget
Training Programs
Tuition Reimbursement
Professional Certification Support
Mentorship Program
Wellness Program
Mental Health Support
Gym Membership
Commuter Benefits
Meal Benefits
Phone/Internet Stipend
Home Office Stipend
Legal Services
Employee Discounts
Company Social Events
Growth & Insights and Company News
6 month growth
-15%1 year growth
-15%2 year growth
-15%Cogent has launched Attack Path Analysis, a security tool using AI models to map routes attackers could take to reach an organisation's critical data and systems. The tool traces paths across cloud, on-premises, identity, and code infrastructure using data from existing security tools, then identifies single fixes that eliminate entire attack routes. The launch follows a July incident where roughly 700 AI agents attacked Hugging Face over four and a half days, executing over 17,600 actions to assemble a chain reaching 136 production keys. Cogent Research found that attack paths viable only for AI agents run at least twice as deep as those available to human attackers. The tool analyses vulnerabilities, misconfigurations, credentials, and permissions to identify routes attackers might exploit, working backwards from critical assets to find chokepoints where single changes can sever attack paths.
Cogent has launched VR-1, which it describes as the first Mythos-class frontier AI model designed specifically for cybersecurity tasks. The company emphasises that whilst most frontier models can identify individual bugs in single codebases, real-world attacks typically exploit chains of minor weaknesses rather than isolated flaws. These attack chains might involve a public service exposing a vulnerability, excessive identity permissions, or unchecked artifacts in build pipelines. VR-1 aims to address this more complex, interconnected nature of cybersecurity threats by moving beyond single-bug detection to understand how multiple small weaknesses can combine to create significant security risks. The model represents Cogent's attempt to develop AI capabilities that better reflect actual attack patterns in production environments.
Cogent, an AI-native cybersecurity startup backed by Greylock Partners and Bain Capital Ventures, has launched Zero Day Response and Autonomous Remediation capabilities designed to compress vulnerability response from weeks to hours. The company aims to address the growing gap between exploit development and enterprise remediation as time to exploit has collapsed from nine months in 2022 to hours in 2026. Zero Day Response identifies vulnerabilities within minutes of public disclosure without waiting for scanner signatures, whilst Autonomous Remediation determines fixes, assesses business impact and confirms resolution. Cogent research found 62% of critical vulnerabilities had exploits circulating before scanner detection, with an average 5.1-day lag between CVE publication and scanner coverage. The platform has helped Fortune 500 security teams reduce exposure windows by 97%.
Cogent Security has raised $42 million in a Series A round led by Bain Capital Ventures, with participation from Greylock Partners and Definition. The financing brings total funding to $53 million, just six months after the company's launch in July 2025. The San Francisco-based startup deploys AI agents to automate cybersecurity remediation, addressing the growing gap between vulnerability discovery and fixing. Whilst attackers using AI can exploit new vulnerabilities within minutes, traditional security teams take days or weeks to coordinate fixes manually. Cogent's platform investigates vulnerabilities, determines system ownership, assesses risk and generates remediation steps, tracking fixes through to completion. Customers have reduced exposure windows for critical risks by an average of 97%. Founded by former executives from Abnormal Security and Coinbase, Cogent is already working with dozens of Fortune 1000 companies.
Cogent Security, a San Francisco, CA-based provider of an AI taskforce for vulnerability management, raised $11M in funding.