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Writer

Staff Security Engineer, Application Security

Writer

. Conduct threat modeling sessions with product teams .

Posted 11/4/2026full-timeUnited StatesLead💰 $204,000 - $240,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in application security engineering with a focus on secure architecture design, threat modeling, and vulnerability management. Proficient in integrating security practices within CI/CD pipelines and collaborating with engineering teams to establish secure coding standards.

Highest-signal resume keywords
Application Security EngineeringSAST/DAST SolutionsPython ProgrammingSecurity Code ReviewsVulnerability Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Application Security EngineeringThreat ModelingSecure Architecture DesignSAST SolutionsDAST SolutionsVulnerability ManagementSecurity Testing FrameworksPython ProgrammingJava ProgrammingGo Programming
Soft Skills
Excellent Communication SkillsBuilder's Mindset
Tools & Technologies
CI/CD PipelinesSecurity Testing FrameworksDevSecOps PracticesAutomation ToolsAI Agents
Industry Keywords
Large-Scale Production SystemsSecurity AssessmentsPenetration TestingAI/ML Security ThreatsGenerative-AI Attack Vectors

Tech Stack

Tools & technologies
JavaJavaScriptPythonTypeScriptGo

About the role

Key responsibilities & impact
  • Conduct threat modeling sessions with product teams
  • Design secure architectures for new features
  • Ensure security considerations shape product decisions from day one
  • Own and evolve the application security program
  • Establish and maintain SAST/DAST scanning in CI/CD pipelines
  • Conduct security code reviews for critical changes
  • Build automation to detect vulnerabilities before production
  • Partner with engineering teams to establish secure coding standards
  • Create reusable security patterns and libraries
  • Design and recommend security features and products for customer environments
  • Integrate and leverage AI agents to increase security-team and engineering velocity
  • Lead security assessments and penetration testing of applications, AI services, and APIs
  • Identify vulnerabilities and collaborate on remediation at scale
  • Design and implement security controls for data pipelines, model training environments, and customer-facing AI agents
  • Research emerging AI/ML security threats, including LLM and generative-AI attack vectors, and build proactive defenses

Requirements

What you’ll need
  • Minimum 4 years of hands-on experience in application security engineering
  • Proven track record of securing large-scale production systems
  • Understanding of developer experience and developer workflows for shipping features and products
  • Technical expertise in at least two programming languages: Python, Java, Go, or JavaScript/TypeScript
  • Ability to read and review code across multiple languages, understanding business logic and security implications
  • Knowledge of SAST/DAST solutions, vulnerability management platforms, security testing frameworks, and DevSecOps practices
  • Excellent communication skills for translating complex security concepts to technical and non-technical audiences
  • Builder's mindset focused on automation, scalability, and empowerment
  • Alignment with WRITER's values of Connect, Challenge, and Own
  • Open to Mid, Sr. and Staff level candidates

Benefits

Comp & perks
  • Generous PTO, plus company holidays
  • Medical, dental, and vision coverage for you and your family
  • Paid parental leave for all parents (16 weeks)
  • Fertility and family planning support
  • Early-detection cancer testing through Galleri
  • Flexible spending account and dependent FSA options
  • Health savings account for eligible plans with company contribution
  • Annual work-life stipends
  • Wellness stipend for gym, massage/chiropractor, personal training, etc.
  • Learning and development stipend
  • Company-wide off-sites and team off-sites
  • Competitive compensation
  • Company stock options
  • 401k