Security Engineer

Sierra
San Francisco
Workplace: OnsiteFull timeUSD 200,000 - 330,000 annuallyFunction: CybersecuritySkills: ["Communication","Collaboration","Problem-solving","Adaptability","Curiosity"]

Security Engineer focused on protecting a scalable AI-powered platform across application, cloud, network, and AI agent security. You will drive secure design reviews, threat modeling, and build security primitives into the product. You’ll partner with engineering, product, and governance teams to embed security in the SDLC, automate scans and compliance, and continually improve the company’s security posture for enterprise customers.

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FursaFursa
Sierra
Sierra
1 year ago

Security Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 23 minutes agoStatus: Live

Job Summary

Security Engineer focused on protecting a scalable AI-powered platform across application, cloud, network, and AI agent security. You will drive secure design reviews, threat modeling, and build security primitives into the product. You’ll partner with engineering, product, and governance teams to embed security in the SDLC, automate scans and compliance, and continually improve the company’s security posture for enterprise customers.
Location: San Francisco
Workplace: Onsite
Employment Type: Full time
Job Function: Cybersecurity

Key Responsibilities

  • •Lead security for the platform across application, cloud, network, and AI agents; perform secure design reviews and threat modeling.
  • •Collaborate with engineering, product, and GRC to embed security throughout the software development lifecycle; communicate risks, prioritize fixes, and ensure security requirements enable innovation.
  • •Implement automation and tooling by integrating security into CI/CD pipelines and leveraging AI-based or next-gen solutions to automate scans, compliance checks, and infrastructure reviews.
  • •Regularly audit cloud environment, review IAM configurations, and stay on top of emerging AI security risks; recommend strategic security initiatives as the company scales.
  • •Present and explain our security posture to enterprise clients, addressing concerns around healthcare, financial, or other regulated data with clear, actionable insights.

Pay and Benefits

Salary: USD 200,000 - 330,000 annually
Equity and Bonus:Equity
Perks:Paid LeaveHealth InsuranceDentalVision401kParental LeaveEquity

Key Requirements

  • •Strong foundation in web application security, cloud security (AWS, Azure, or GCP), and networking principles.
  • •Hands-on experience with programming production software, scripting, and DevOps tools for automation; familiarity with secure coding practices, threat modeling, vulnerability scanning, and incident response processes.
  • •Adaptability and resilience to thrive in a fast-paced startup and changing priorities.
  • •Excellent written and verbal communication to explain risk trade-offs to technical and non-technical audiences.
  • •Curiosity and a customer-first mindset with a willingness to design security into products from first principles.
Experience:AICloud securityWeb security
Skills:CommunicationCollaborationProblem-solvingAdaptabilityCuriosity
Tech Stack:AWSAzureGCPTerraformCloudFormationCI/CDVulnerability scanningThreat modelingSecurity toolingIAM

Company Brief

Sierra
Develops advanced AI agents and tools focused on building autonomous, generalist machine learning systems to assist developers and enterprises in automating complex workflows, decision-making, and application-level tasks.
Industry: AI & Machine Learning
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