Security Engineer

decagon; San Francisco (CA); On-site; USD 200,000 - 330,000; Full time

Benefits offered by this job

Take what you need vacation policy

Medical, Dental, and Vision benefits

Life Insurance and Disability Benefits

Retirement Plan

Parental Leave

Fertility benefits

Daily lunches and snacks

Job summary

Decagon is seeking a Security Engineer to enhance the security foundations of its conversational AI platform in San Francisco. Your responsibilities will include implementing security controls, building automated security tools, and collaborating with engineering teams to strengthen defenses against modern threats.

The ideal candidate will have 3+ years of experience in security engineering, familiarity with application security concepts, and a natural curiosity for technology.

Qualifications

• 3+ years of experience in security engineering with strong software fundamentals.
• Familiarity with application security concepts including authentication and secure practices.
• Ability to write production-quality code and build necessary tools and automation.

Responsibilities

• Implement security controls across the agent platform.
• Build security tooling and automation including remediation pipelines.
• Partner with engineering teams to design authentication systems.

Skills

Security engineering

Software engineering

Application security

Cloud security

Automation building

Tools

Google Cloud

Terraform

Static analysis tools

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:

• Take what you need vacation policy (subject to local requirements; UK employees receive 25 days of statutory leave)

• 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

• Daily lunches and snacks in the office to keep you at your best

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.