Senior Third Party Risk & Controls Specialist

HubSpot is seeking a Senior Third Party Risk & Integration Security Engineer to join our expanding IAM, Third Party Risk Management, and Enterprise Application Management team. This role is based on the idea of “external party security” and combines technical security assessment expertise in vendor risk management, focusing on evaluating third-party applications, emerging AI technologies, and integration security. The ideal candidate will conduct technical assessments of vendor security controls while also supporting broader software management and identity and access management initiatives across the organization.

This role is remote; candidates must be based in the Eastern Time Zone (ET).

What you’ll do

Third-Party Risk Assessment (Primary Focus - 60%)

• Conduct technical security assessments of third-party applications, vendors, and service providers beyond traditional questionnaire-based reviews
• Evaluate API security, authentication mechanisms, data flows, and integration architectures for vendor solutions
• Assess generative AI vulnerabilities in third-party applications, including model security, data privacy, and information disclosure risks
• Perform security reviews of Model Context Protocol (MCP) servers and implementations
• Review vendor security documentation, architecture diagrams, and technical controls
• Identify security gaps and provide risk-based recommendations and guardrails to stakeholders
• Collaborate with procurement, legal, and business teams on vendor onboarding and ongoing monitoring requirements.

IAM & Enterprise Application Management (40%)

• Support Shadow IT discovery and risk assessment initiatives using enterprise tooling
• Evaluate security risks associated with unsanctioned applications and browser extensions
• Assist with managing and reducing risk relating to non-human identity (NHI) including service accounts and API keys.
• Assess access control implementations across enterprise applications and also members of HubSpot’s global contractor base.
• Review OAuth grants, SAML configurations, and application integrations for security risks
• Support identity governance initiatives and access certification processes
• Collaborate and support the enterprise application management team on shared security initiatives

What we’re looking for 

• 5+ years of experience in application security, vendor risk management, cloud security, and/or related field
• Experience with security frameworks (NIST CSF, ISO 27001, SOC 2, etc.)
• Strong understanding of API security (REST, GraphQL, authentication/authorization)
• Strong understanding of IAM principles (RBAC, ABAC, least privilege) and modern authentication protocols (OAuth 2.0, SAML)
• Experience with non-human identity management (service accounts, API tokens, certificates)
• Understanding of SaaS architectures, access controls, and integration security
• Excellent prioritization, organization, and time management skills to suit a high-volume environment.
• Understanding of LLM and generative AI security challenges and the emerging threat landscape.
• Strong project management and communication skills to support a highly cross-functional work environment.
• Working knowledge of privacy and compliance standards (GDPR, CCPA, HIPAA)
• Background in technical due diligence or managing large-scale supplier security programs (preferred)
• Certifications such as CISSP, CCSP, CISM, or CRISC are a plus