Principal Security Engineer (Product & Business Enablement)

The role

You will serve as an embedded security partner to business, product, data, and technology teams. You will translate business goals into scalable security architecture and reusable design patterns to secure SaaS services, custom applications, APIs, data flows, and AI capabilities.

What you will do

• Assess end-to-end architectures spanning SaaS, applications, APIs, integrations, data services, and AI
• Facilitate architecture and threat reviews with delivery teams
• Own and maintain a library of secure-by-design patterns
• Translate security requirements into practical designs
• Serve as a primary security partner for product, enterprise architecture, data, and technology teams
• Provide security expertise in vendor evaluations and SaaS selection
• Collaborate with Security Platform Engineering to convert requirements into automated guardrails
• Partner with Identity & Access and Infrastructure teams
• Provide technical security support for AI-enabled products and workflows
• Support enterprise data strategy, M&A activities, and technology onboarding

Required qualifications

• Bachelor’s degree in Computer Science, Engineering, Information Security, or related field (or equivalent practical experience)
• 10+ years of experience in security architecture, cloud/SaaS security, solutions architecture, software engineering, or SRE/DevOps
• At least 5 years in a dedicated security role
• Demonstrated track record securing distributed business systems with SaaS, APIs, integrations, identity, and third-party services
• Ability to rapidly analyze unfamiliar architectures, identify material risks, and translate findings into actionable designs
• Experience partnering with business, engineering, and product teams to shape secure solutions and make risk-aware decisions
• Evidence of pragmatic, business-aware security thinking

Nice to have

• Hands-on engineering or architecture background plus experience collaborating with business or product teams
• Experience shifting the perception of security from a business obstacle to an enabler
• Background in SaaS- and integration-rich environments with AI-enabled workflows
• Familiarity with data security concepts (classification, DLP, encryption, data governance, etc.)
• Experience in financial services, wealth management, regulated industries, or M&A technology integrations
• Security certifications (CISSP, CCSP, CSSLP, cloud security)

Benefits

• Professional, remote-first environment
• Inclusive culture
• Access to industry-leading technology platforms
• Progressive opportunities
• Professional growth
• Giving back to the community
• Innovative workplace
• Culture that fosters camaraderie, teamwork and work-life balance

About the company

Mariner is a firm that believes in giving associates progressive opportunities and nurturing professional growth. They are dedicated to building a diverse culture and an innovative workplace.