Senior Security Engineer
About The Position
Rain is a global stablecoin payments platform serving enterprises, neobanks, platforms, developers, and AI agents. Its technology supports compliant stablecoin payments through cards, rewards, on- and offramps, wallets, and cross-border rails. Security protects a platform handling real-money movement across cloud infrastructure, identity, endpoints, partner integrations, and smart contracts. The small, senior, cross-functional team builds and operates its own central systems for detection, response, sensors, and threat intelligence, working with engineering, compliance, and leadership. The Senior Security Engineer will secure systems Rain builds as the company expands into new products and chains. The role includes building security tooling and controls, hardening infrastructure and access, developing AI agents and tools for security workflows, assessing products and partners, leading external security assessments, and participating in incident response and the on-call rotation.
Requirements
- At least 5 years of security engineering experience, 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 and prove vulnerabilities and work with the team that owns the code to drive fixes.
- Experience at a fintech, payments, or crypto company.
Nice To Haves
- Blockchain security experience, such as smart contract review, onchain monitoring, custody, and multisig controls.
- AI security experience, such as securing LLM applications and agents or building AI into security workflows.
- Experience running external audits or a bug bounty program.
Responsibilities
- Build central security systems and automation used across the company.
- 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 to make security work faster and more accurate.
- Lead external security assessments and drive findings through to verified fixes.
- Participate in the on-call rotation and support incident response.
Benefits
- Unlimited time off, with a minimum of 10 days required.
- Flexible workplace, with the option to work from home or an office.
- A stipend for new employees to create a comfortable home-work environment.
- For US employees, comprehensive health, dental, and vision plans for employees and dependents.
- Company-subsidized life insurance for US employees.
- 401(k) with a 4% company match.
- Equity option plan.
- Rain card for testing the company’s products and services.
- Eligible health and wellness spending, including gym memberships, fitness classes, massage, and acupuncture.
- Domestic and international team and company offsites.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
