Senior Security Engineer — Fintech/Crypto, AI Security

Rain; New York (NY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Unlimited time off

Flexible working

Health, dental, vision

401(k) with match

Equity plan

Rain Cards

Health and Wellness

Team summits

Job summary

Rain is seeking a senior security engineer to build central security systems, automate protections, and harden cloud infrastructure while supporting fast growth across products and partners.

You will lead threat assessments, integrate AI-assisted detection, and drive fixes with engineering teams, all within a fintech/crypto environment. A flexible, hybrid work model supports remote collaboration.

Qualifications

• 5+ years in security engineering, including building tools and controls that run in production.
• Strong coding skills in TypeScript, Go, Rust or Python.
• Experience securing cloud infrastructure, identity and access.
• Ability to find vulnerabilities, prove them, and drive the fix with the team that owns the code.
• Experience at a fintech, payments or crypto company.

Responsibilities

• Build central security systems and automation the whole company relies on.
• Secure cloud infrastructure, identity and access across Rain’s growing footprint.
• Assess new products, partners and vendors before launch, and guide the engineers building them.
• Build AI agents and tools that make security work faster and more accurate.
• Lead external security assessments and drive findings to verified fixes.
• Join the on-call rotation and support incident response.

Skills

Security engineering

TypeScript

Go

Rust

Python

Cloud security

Vulnerability finding

fintech/crypto experience

Tools

Threat detection tooling

Job description

Rain is seeking a senior security engineer to build central security systems, automate protections, and harden cloud infrastructure while supporting fast growth across products and partners.

You will lead threat assessments, integrate AI-assisted detection, and drive fixes with engineering teams, all within a fintech/crypto environment. A flexible, hybrid work model supports remote collaboration.