---
title: 'Security Engineer at Decagon'
canonical: 'https://feeny.ai/job/security-engineer-decagon-san-francisco-j77zreffeb6p'
type: 'job'
last_seen: '2026-09-12'
---

# Security Engineer at Decagon

- **Company:** [Decagon](https://feeny.ai/companies/decagon)
- **Location:** San Francisco, CA
- **Compensation:** $200k–$330k
- **Employment:** full-time
- **Posted:** 2026-04-10
- **Last confirmed live:** 2026-09-12
- **Apply:** https://jobs.ashbyhq.com/decagon/3998068a-4ce9-4a70-b9c0-7e89ef531331/application

**Skills:** Software Engineering, Application Security, Authentication, Authorization, Vulnerability Assessment, Secure Development Practices, Production Code Writing, Cloud Security, Google Cloud, Developer Tools, Security Automation, Remediation Pipelines, Static Analysis, Semgrep, CodeQL, Vulnerability Management, AI/ML Security, Prompt Injection Defense, Adversarial Input Defense, Infrastructure as Code

> Build and scale security foundations for Decagon's conversational AI platform, implementing security controls, tooling, and automation. Collaborate with engineering teams to defend against AI-enabled threats while maintaining enterprise-ready security and compliance.

## Job description

## About Decagon

Decagon is the leading conversational AI platform empowering every brand to deliver concierge customer experiences. Our technology enables industry-defining enterprises like Avis Budget Group, Block’s Cash App and Square, Chime, Oura Health, and Hunter Douglas to deploy AI agents that power personalized, deeply satisfying interactions across voice, chat, email, SMS, and every other channel. We’re building a future where customer experiences are being redefined from support tickets and hold music to faster resolutions, richer conversations, and deeper relationships. We’re proud to be backed by world-class investors who share that vision, including a16z, Accel, Bain Capital Ventures, Coatue, and Index Ventures, along with many others. We’re an in-office company, driven by a shared commitment to excellence and velocity. Our values — Just Get It Done, Invent What Customers Want, Winner’s Mindset, and The Polymath Principle — shape how we work and grow as a team.

## About the Team

The Security Engineering team at Decagon protects the platform that powers the most advanced conversational AI agents for enterprise customers across voice, chat, email and SMS. We build the security foundations that enable Decagon's AI agents to handle sensitive customer data with complete trust while defending against sophisticated, AI-enabled threats at massive scale. Our mission is to secure our growing platform, ensuring that AI agents and human agents can collaborate safely to help users resolve their issues while maintaining the highest standards of security and privacy.

## About the Role

Help build and scale the security foundations of Decagon AI's customer experience platform that powers AI agents for enterprise customers. You'll work with the head of Security to implement security controls, build security tooling, and strengthen our defenses against modern, AI-enabled threats while maintaining an enterprise-ready security and compliance posture. This role combines hands-on security engineering with software development. You'll build automated remediation tools, work on detection pipelines, and partner with engineering teams to improve security across our platform. Decagon's team is some of the best in the industry, so you'll work alongside a skilled and enthusiastic team.

In this role, you will

- Implement security controls across our agent platform, covering application security, infrastructure security
- Build security tooling and automation, including automated remediation pipelines, detection systems, and testing frameworks integrated into CI/CD workflows
- Partner with engineering teams to design and review authentication systems, secrets management, and access controls
- Create detection pipelines that scale with millions of daily AI agent interactions
- Contribute to security incidents affecting operations, supporting rapid resolution while maintaining service availability

## Your background looks something like this

- Have 3+ years of experience in security engineering, with strong software engineering fundamentals
- Familiarity with application security concepts including authentication, authorization, vulnerability assessment, and secure development practices
- Ability to write production-quality code; you can build the tools and automation the team needs, not just identify problems
- Experience with cloud security fundamentals, ideally Google Cloud
- Exposure to enterprise security requirements such as SOC 2, ISO 27001, or GDPR
- Natural curiosity about new technologies and approaches to security problems
- Excited to work with bright colleagues out of our downtown San Francisco office

Even better

- Experience building developer tools, security automation, or remediation pipelines
- Background with static analysis tools (Semgrep, CodeQL) or vulnerability management platforms
- Familiarity with securing AI/ML applications, including awareness of risks like prompt injection and adversarial inputs
- Experience with infrastructure as code (Terraform) and modern cloud development practices
- Comfortable working across the entire stack to solve problems

## Compensation

$200K – $330K + Offers Equity

## Benefits

We proudly offer the following benefits for our full-time employees:

- Medical, Dental, and Vision benefits for you and your family
- Life Insurance and Disability Benefits
- Retirement Plan (e.g., 401K, pension)
- Parental Leave
- Fertility and family building benefits through Carrot
- Monthly stipend to support your wellness, lifestyle, and work-life balance
- Daily lunches and snacks in the office to keep you at your best
- Take what you need vacation policy (subject to local requirements; UK employees receive 25 days of statutory leave)

These benefits are described in more detail in Decagon’s policies, may vary by location, and can change at any time according to applicable compensation and benefits plans.

## About Decagon

## Company Overview
- **One-liner**: Decagon is an AI customer support platform that enables enterprises to deploy autonomous AI agents for concierge-level customer experiences across voice, chat, email, and other channels.
- **Entity Type**: Private (Series B, $481M total funding)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2023
- **Founders**: Jesse Zhang (CEO) and Ashwin Sreenivas (CTO)

## Core Business
- **Primary industry**: AI-powered customer support software / Enterprise conversational AI
- **Target customers**: B2B, mid-market to enterprise (e.g., Avis Budget Group, Chime, Oura Health, 1-800-FLOWERS.COM, Hunter Douglas, Duolingo, Curology, Valon)
- **Mission or purpose**: "Build a future where customer experiences are being redefined from support tickets and hold music to faster resolutions, richer conversations, and deeper relationships."

## Products & Services
- **[Decagon AI Concierge Platform](https://decagon.ai/)**: Unified omnichannel AI agent handling chat, voice, and email — powered by natural-language Agent Operating Procedures (AOPs) for workflow definition and an analytics suite for continuous optimization.
- **[Decagon Voice AI](https://decagon.ai/product/voice)**: Fast, intelligent voice agents built for natural dialog, fully customizable to brand tone, claiming 50%+ deflection on voice and 70% chat+voice resolution.
- **[Decagon Chat](https://decagon.ai/product/chat)**: Flexible, personalized chat agent that executes complex workflows reliably, claiming 80% deflection rate and 32% cost reduction.
- **[Decagon Email](https://decagon.ai/product/email)**: Always-on, intuitive email agent that resolves issues quickly, reporting 1M+ revenue from fully AI-handled conversations and 3x CSAT increase.
- **[Duet Autopilot](https://decagon.ai/)**: Newer product tier (announced 2025) for autonomous, end-to-end handling of customer interactions.

## Market Standing
- **Valuation**: ~$4.5B (Series B round led by Coatue Management and Index Ventures, tripling valuation in under six months as of late 2025/early 2026) [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-decagon-2026)
- **Total Funding**: USD $481,000,000 across 7 rounds [LinkedIn](https://www.linkedin.com/company/decagon-ai)
  - Seed (Jun 2024): $5M led by a16z
  - Series B (Oct 2024): $65M led by Bain Capital Ventures
  - Venture Round (Nov 2025): undisclosed amount, 1 investor
- **Notable Investors/Partners**: Andreessen Horowitz (a16z), Accel, Bain Capital Ventures, Coatue Management, Index Ventures, Elad Gil [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-decagon-2026)
- **Growth Signals**:
  - 311 employees (+325.3% YoY) as of mid-2026
  - 100+ enterprise customers
  - Over 60,000 LinkedIn followers (+274.8% yearly growth)
  - Active in 7 countries (US, UK, Ireland, Germany, Netherlands, Philippines, Nigeria)
  - 134 active job postings (+332.3% yearly growth)
  - Key talent sourced from Verkada, Scale AI, Bain & Company, Glean, Databricks, xAI, Salesforce, TikTok, Five9

## Competitive Advantages
- **Proven enterprise adoption**: Deployed at major brands (Chime, Avis, Oura, Duolingo) with highly publicized results — e.g., Oura reported 95% chat+voice resolution, Curology 80% deflection, and one customer saw "10x higher deflection at launch than anticipated" [decagon.ai](https://decagon.ai/)
- **Omnichannel by design**: Unified chat, voice, and email on a single intelligence layer — a rare end-to-end approach vs. point solutions for just chat or voice.
- **Natural-language AOPs**: Agent Operating Procedures in plain English, enabling non-engineers to define and iterate on agent workflows without engineering support — faster iteration and less vendor lock-in.
- **Elite investor syndicate**: Backed by the top enterprise AI investors (a16z, Accel, Coatue, Index, Bain Capital Ventures), signaling strong confidence and access to a broad network.
- **Founding team pedigree**: Founded by former executives/engineers from high-growth AI companies (Jesse Zhang and Ashwin Sreenivas have backgrounds from fast-scaling AI startups).

## Strategic Focus
- **Scaling enterprise sales**: Actively hiring Enterprise Account Executives, Implementation Managers, and Strategic Account Directors [LinkedIn](https://www.linkedin.com/company/decagon-ai)
- **Deepening voice capabilities**: Staff Research Engineer and Senior Research Engineer for Voice + Speech roles signal heavy investment in voice AI quality and differentiation [LinkedIn](https://www.linkedin.com/company/decagon-ai)
- **International expansion**: Established offices in London (UK), plus presence in Ireland, Germany, Netherlands, and Philippines — recruiting across all regions.
- **Product velocity**: Emphasis on rapid iteration and continuous improvement of agents; building out analytics suite (Decagon Insights) and Duet Autopilot for fully autonomous operation.

## Why Work Here
- **Culture**: Described as "Eng-Driven, Ship Fast, Equity, Product Impact" by employees. Values include: "Just get it done," "Invent what customers want," "Winner's mindset," "The Polymath Principle" (cross-functional collaboration) [decagon.ai/careers](https://decagon.ai/careers)
- **Compensation**: "We hire the best and treat them accordingly" — competitive compensation philosophy; Glassdoor rating: 3.9/5.0 (257 reviews), Compensation: 5.0/5.0 in Glassdoor-style internal review [jobsbyculture.com](https://jobsbyculture.com/blog/working-at-decagon-2026)
- **Benefits**:
  - 100% medical, dental, and vision coverage for dependents
  - 401k and FSA/commuter benefits
  - Flexible PTO + company-wide winter break shutdown
  - Free daily lunches, dinner, and snacks at HQ
  - Wellness programs and company events [decagon.ai/careers](https://decagon.ai/careers)
- **Remote/Hybrid/Office**: HQ in San Francisco (2261 Market Street); London office (50 York Way). Roles span remote, hybrid, and on-site options based on job postings.
- **Engineering culture**: 89 technical employees (21% of workforce), Staff/Senior Research Engineer roles for Voice + Speech; "Build, optimize, and scale AI agents" is core identity. Alumni go on to OpenAI, Datadog, Postman, Accel — strong talent pipeline.
- **Growth trajectory**: 134 open roles; 300+% headcount growth YoY; $4.5B valuation at 3 years old — extremely high-growth environment ideal for career acceleration.
- **Notable perk**: "We’re building a future where customer experiences are being redefined from support tickets and hold music to faster resolutions" — employees report high product impact and ownership.

## Sources
1. [decagon.ai](https://decagon.ai/)
2. [decagon.ai/careers](https://decagon.ai/careers)
3. [LinkedIn - Decagon](https://www.linkedin.com/company/decagon-ai)
4. [jobsbyculture.com - Working at Decagon 2026](https://jobsbyculture.com/blog/working-at-decagon-2026)
5. [dealroom.co - Decagon profile](https://dealroom.co/companies/decagon/)

## Other roles at Decagon

- [Field Marketing Coordinator](https://feeny.ai/job/field-marketing-coordinator-decagon-new-york-e3by09pf39xa) — New York, NY
- [Technical Accounting & Financial Reporting Manager](https://feeny.ai/job/technical-accounting-financial-reporting-manager-decagon-san-francisco-nq0t5qb7e7s5) — San Francisco, CA
- [Director of Solutions Engineering, Enterprise East](https://feeny.ai/job/director-of-solutions-engineering-enterprise-east-decagon-new-york-d55y7b8j28jg) — New York, NY
- [Engineering Manager, Research](https://feeny.ai/job/engineering-manager-research-decagon-san-francisco-p4c837fyqnby) — San Francisco, CA
- [Research Engineer, Audio and Speech](https://feeny.ai/job/research-engineer-audio-and-speech-decagon-san-francisco-b8k43356nm2g) — San Francisco, CA
- [Research Engineer, Safety](https://feeny.ai/job/research-engineer-safety-decagon-san-francisco-ddrp6e2n67s0) — San Francisco, CA
- [Senior Research Engineer, Safety](https://feeny.ai/job/senior-research-engineer-safety-decagon-san-francisco-25bb5evf72c7) — San Francisco, CA
- [Growth Marketing Manager, Paid Social](https://feeny.ai/job/growth-marketing-manager-paid-social-decagon-san-francisco-3ejhkdsjb3pp) — San Francisco, CA
- [AI Acceleration Engineer](https://feeny.ai/job/ai-acceleration-engineer-decagon-san-francisco-2v40s7e6zm4t) — San Francisco, CA
- [Business Systems Manager](https://feeny.ai/job/business-systems-manager-decagon-san-francisco-eza2f6xc5sb5) — San Francisco, CA