Obsidian Security · 4 hours ago
Staff Platform Security Engineer - Office of the CISO
Obsidian Security is a cybersecurity startup focused on securing SaaS applications. They are seeking a Staff Platform Security Engineer to enhance product security by architecting, implementing, and scaling security automation and policy enforcement across their platforms.
ComputerCyber SecurityNetwork SecuritySaaS
Responsibilities
Design and drive a holistic Platform Security strategy aligned with business risk posture and compliance requirements
Collaborate with IT, GRC, DevOps, and Engineering teams to build secure and privacy-by-default product hosting platforms
Define and implement secure patterns for cloud-native architectures (e.g., containers, serverless, IaC)
Create automation workflows for security incident detection and response across environments
Establish continuous compliance pipelines for standards like SOC 2, ISO 27001, FedRAMP, or HIPAA
Lead security architecture reviews, threat modeling sessions, and secure coding workshops
Mentor more junior security engineers and influence cross-functional teams through technical thought leadership
Ensure that application code, images, dependencies, and infrastructure are scanned for vulnerabilities and that vulnerabilities are remediated in a risk-informed and timely manner
Embed security controls into build and deployment pipelines (GitLab CI)
Mature vulnerability scanning (SAST, DAST, SCA) and integrate results into feedback loops for security and engineering teams
Develop and enforce guardrails and policy-as-code (OPA) to prevent misconfigurations and policy drift
Ensure that CI/CD infrastructure and other critical infrastructures and systems are hardened according to security best practices and standards, and monitored for security threats
Harden Kubernetes clusters, container runtimes, and cloud environments (AWS/GCP) using security standards and best practices
Lead implementation of infrastructure as code (Terraform), security validation, and drift detection
Drive zero-trust principles in service-to-service communication and access control
Support product penetration testing and corporate red teaming exercises
Implement security tooling, automation, and orchestration as needed for detection, response, reporting, and vulnerability management capabilities
Ensure that security tooling is maintained, optimized, and consistently deployed across the Obsidian install base
Develop security threat detection rules and analytics within Obsidian security tooling systems and drive posture security maturity
Support security program continuity and resiliency by maturing security documentation, processes, and runbooks. Build playbooks for recurring security events and operations
Qualification
Required
At least 8 years of security engineering experience
Proficient in software engineering with emphasis on the Python programming language at a minimum
Proficient in Terraform Infrastructure-as-Code
Proficient in securing Kubernetes
Proficient in securing AWS and GCP environments
Proficient in securing the GitLab platform
Proficient in security automation
Excellent understanding of multiple security domains, such as protection, detection, response, application security, vulnerability management, or threat intelligence
Be obsessive about security while doing everything possible to support the overall mission
Experience working with multiple internal and external stakeholders during incident lifecycles
Experience communicating across a company to encourage and educate on best practices, standards, and policies
Benefits
Competitive compensation with equity and 401k
Comprehensive healthcare with dental and vision coverage
Flexible paid time off and paid holiday time off
12 weeks of new parent or family leave
Personal and professional development resources
Company
Obsidian Security
Obsidian Security is a threat detection and posture management for business-critical saas applications.
H1B Sponsorship
Obsidian Security has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (5)
2024 (5)
2023 (1)
2022 (4)
2021 (3)
2020 (2)
Funding
Current Stage
Growth StageTotal Funding
$119.5MKey Investors
Wing Venture CapitalGreylock
2022-04-14Series C· $90M
2019-02-27Series B· $20M
2017-06-08Series A· $9.5M
Recent News
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2026-01-23
2025-12-29
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