Senior Security Engineer

About the company

Our client is an AI-native mortgage technology company automating lending workflows for some of the largest lenders in the US. A top-10 US mortgage lender is going live as a primary customer, several other major lenders are in late-stage talks, and the company has years of runway. The stack is modern: a TypeScript monorepo, end-to-end type safety and 100% infrastructure as code.

The role

Raydar is recruiting for this role on behalf of our client. This is a hands-on senior IC engineering role focused on product and platform security, for someone who keeps a strong security posture without slowing development. The company handles highly sensitive personal and financial data, and good security here shows up as better architecture, safer defaults and useful tooling.

What you'll do

• Build secure-by-default libraries, guardrails and internal tools that make the secure path the easy path
• Review architecture, designs and production code for authentication, authorization, tenant isolation, secrets handling and data exposure
• Run pragmatic threat modeling for new features, services and integrations
• Build low-noise security automation in CI/CD and local workflows, including code scanning, dependency policy and secret detection
• Work directly with engineers to fix vulnerabilities with durable, reusable patterns
• Help shape a lightweight secure SDLC and contribute to incident analysis and postmortems

What we're looking for

• 8+ years as a software engineer specializing in security, or a software engineer who moved into security and still ships code
• Experience at software or SaaS companies with a strong security posture (big tech or security SaaS)
• Proficiency in TypeScript and Node: comfortable reading, navigating and making real changes to the codebase
• A builder mindset: you write production code and tools, not just scripts or policies
• Strong written communication for documenting risks and runbooks
• US citizen or green card holder (no visa sponsorship)

Tech stack: AWS, Terraform, TypeScript, Node, React, Datadog

Bonus points

• Deep AWS security experience (IAM, VPC, GuardDuty, KMS)
• Terraform or Pulumi proficiency
• Hands-on SOC 2 experience
• Security as a passion: bug bounties, write-ups or research in your spare time

Compensation and benefits

• $150K-$350K base, depending on level (Senior or Staff)
• Competitive equity
• 100% of employee and family medical premiums covered, plus vision and dental
• 401(k), HSA/FSA and flexible time off

Location and work model

• Remote, United States (US hours)
• Full-time