--- title: 'Senior Security Engineer at Rain' canonical: 'https://feeny.ai/job/senior-security-engineer-rain-remote-08awp0s8mwb7' type: 'job' last_seen: '2026-11-08' --- # Senior Security Engineer at Rain - **Company:** Rain - **Location:** Remote - **Compensation:** $200k–$260k - **Employment:** full-time - **Work type:** remote - **Posted:** 2026-11-03 - **Last confirmed live:** 2026-11-08 - **Apply:** https://jobs.ashbyhq.com/rain/6e303e8c-9d97-485a-9676-e0471e4bdc70 ## Job description ## About the Company Rain is the global stablecoin payments platform for enterprises, neobanks, platforms, developers, and AI agents. Our technology allows partners to move, store, and use stablecoins instantly and compliantly through global payment cards, rewards, on/offramps, wallets, and cross-border rails. As both a Visa and Mastercard Principal Member, Rain issues cards that work at more than 175 million merchant locations in over 220 countries and territories. Built natively for stablecoins and trusted by more than 100 organizations worldwide, Rain delivers secure, scalable infrastructure that makes money move freely and instantly around the world. You will have the opportunity to deliver massive impact at a hypergrowth company backed by some of the top investors in fintech, crypto, and SaaS. In January 2026, we closed a $250M Series C led by ICONIQ, valuing Rain at $1.95B, with Sapphire Ventures, Dragonfly, Bessemer Venture Partners, Galaxy Ventures, FirstMark, Lightspeed, Norwest, and Endeavor Catalyst also participating. If you're curious, bold, and excited to help shape a borderless financial future, we'd love to talk. Our Ethos We believe in an open and flat structure. You will be able to grow into the role that most aligns with your goals. Our team members at all levels have the freedom to explore ideas and impact the roadmap and vision of our company. ## About the team & role Security at Rain protects a platform where real money moves every second, across cloud infrastructure, identity, endpoints, partner integrations and smart contracts. The team is small, senior and cross-functional, and it builds most of what it runs. Our engineers use AI agents for alert triage, investigation and response, and they design, tune and supervise those agents. Together we build Rain’s central systems for detection, response, sensors and threat intelligence, working directly with engineering, compliance and leadership. You will secure the systems Rain builds next. The role spans the whole program: you will build security tooling and controls, harden our infrastructure and access, and take on the hardest problems as Rain expands into new products and chains. ## What you’ll do - 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 ## What We’re Looking For - 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 ## Nice to have - Blockchain security: smart contract review, onchain monitoring, custody and multisig controls - AI security: securing LLM applications and agents, or building AI into security workflows - Experience running external audits or a bug bounty program Things that enable a fulfilling, healthy and happy experience at Rain: Unlimited time off 🌴Unlimited vacation can be daunting, so we require Rainmakers to take 10 days minimum for themselves. Flexible working ☕ We support a flexible workplace, if you feel comfortable at home please work from home. If you’d like to work with others in an office feel free to come in. We want everyone to be able to work in the environment in which they are their most confident and productive selves. New Rainmakers will have a stipend to create a comfortable atmosphere at home. Easy to access benefits 🧠For US Rainmakers, we offer comprehensive health, dental and vision plans for you and your dependents, as well as a 100% company subsidized life insurance plan. Retirement goals💡Plan for the future with confidence. We offer a 401(k) with a 4% company match. Equity plan 📦 We offer every Rainmakers an equity option plan so we can all can benefit from our success. Rain Cards 🌧️ We want Rainmakers to be knowledgeable about our core products and services. To support this mission, we issue a card for our team to utilize the card for testing. Health and Wellness 📚 High performance begins from within. Rainmakers are welcome to use their card for eligible health and wellness spending like gym memberships/fitness classes, massages, acupuncture - whatever recharges you! Team summits ✨ Summits play an important role at Rain! Time spent together helps us get to know each other, strengthen our relationships, and build a common destiny. Expect team and company offsites both domestically and internationally. ## About Rain ## Core Business - **Primary industries**: Financial Services, Payments, Stablecoin Infrastructure - **Target customers**: B2B – enterprises, fintechs, platforms, and institutions needing compliant card programs and cross-border payment rails - **Mission**: Build the infrastructure that turns stablecoins into usable financial products, enabling tokenized money to move at internet speed while delivering familiar user experiences ## Products & Services - **Cards**: Launch prepaid or credit card programs (virtual and physical) powered by stablecoin infrastructure, accepted at 175M+ merchant locations worldwide. Includes scoped virtual cards for agentic payments. - **Wallets**: Store stablecoins with flexible, secure setups; offer branded wallet-in-a-box for digital dollar access in underbanked regions. - **Money Movement**: Send and receive fiat and stablecoin payments globally, with daily onchain settlement to card networks. - **Accounts**: Virtual accounts with static routing details to send and receive funds. - **Onramps/Offramps**: Convert fiat into stablecoins and stablecoins into local currency. - **Rewards**: Card-native rewards programs that drive usage and revenue. - **Agent Control Layer**: Guardrails for controlled agentic payments, allowing agents to spend and move money safely. ## Market Standing - **Valuation**: $1.95 billion (as of Series C, January 2026) - **Key Metric**: Total funding of $338M+ (Series C: $250M led by ICONIQ Capital, January 2026) - **Notable Investors/Partners**: ICONIQ Capital, Lightspeed Venture Partners, Norwest Venture Partners, Sapphire Ventures, Dragonfly, Galaxy, Khosla Ventures, Coinbase Ventures, Circle Ventures, Uniswap, FirstMark, Vinyl, Thayer, BDMI, CompoSecure, Canonical Crypto, Hard Yaka, Samsung Next, Goldcrest Capital, Endeavor Catalyst, Mischief. Mastercard Principal Member and Visa Principal Member. - **Growth Signals**: 107 employees (+421% YoY); operates in 12 countries; trusted by hundreds of partners moving billions in transaction volume annually; became a Mastercard Principal Member in 2026; launched Agent Control Layer. ## Competitive Advantages - **Stablecoin-native by design**: Built from the ground up for onchain money movement, not legacy rails with crypto added later. - **Daily onchain settlement**: Settles card transactions with networks daily using stablecoins, improving capital efficiency and speed. - **Principal membership with Visa and Mastercard**: Direct issuing without intermediaries, enabling global acceptance and compliance. - **Unified API**: Combines accounts, cards, ramps, rewards, and money movement in one platform, reducing vendor fragmentation. - **Full-stack compliance**: Compliance, risk, and program operations built into the platform with hands-on support from design through launch. ## Strategic Focus - **Geographic expansion**: Scaling stablecoin payment infrastructure to APAC and beyond, with existing presence in US, LATAM, EU, and EMEA. - **Agentic payments**: Enabling controlled, autonomous spending through the Agent Control Layer for AI agents and automated workflows. - **Deepening enterprise adoption**: Winning large institutions and platforms by offering a complete, compliant stablecoin payments stack. - **Growing card programs**: Expanding prepaid and credit card issuance for global HNWIs, cross-border B2B payments, and branded wallet-in-a-box solutions. ## Why Work Here - **Culture**: “Rainmakers” are described as bold builders shaping how money moves for the next generation. Emphasis on high performance, intentional investment in team, and long-term mindset. - **Work model**: Hybrid setup with a Flatiron office (NYC) for local teammates; flexible remote options for other locations. - **Perks**: Equity ownership for every team member; $1,000 home office stipend; $350/month wellness support (fitness, therapy, personal well-being); 95% of medical, dental, and vision premiums covered; unlimited PTO; 401(k) with matching; regular team events, offsites, and dinners. - **Engineering culture**: Strong technical team (33% of staff in technical roles), modern stack (EVM, fullstack, Android), and opportunities to work on cutting-edge stablecoin infrastructure. ## Sources 1. [rain.xyz/careers](https://www.rain.xyz/careers) 2. [rain.xyz/](https://www.rain.xyz/) 3. [rain.xyz/about-us](https://www.rain.xyz/about-us) 4. [linkedin.com/company/rainxyz](https://www.linkedin.com/company/rainxyz) 5. [rain.xyz/media-kit](https://www.rain.xyz/media-kit) ## Other roles at Rain - [Technical Recruiter](https://feeny.ai/job/technical-recruiter-rain-new-york-6dxasc89s0js) — New York, NY - [Associate Account Manager](https://feeny.ai/job/associate-account-manager-rain-europe-f8ba518vzjjg) — Europe - [Associate Account Manager](https://feeny.ai/job/associate-account-manager-rain-new-york-scwjtzd9a2jy) — New York, NY - [Events Coordinator](https://feeny.ai/job/events-coordinator-rain-new-york-ekfww9p8d9y2) — New York, NY - [Sales Engineer](https://feeny.ai/job/sales-engineer-rain-new-york-hp6zbnn2brf3) — New York, NY - [Business Development Lead, Agentic Commerce](https://feeny.ai/job/business-development-lead-agentic-commerce-rain-new-york-dahwtgc0h1h6) — New York, NY - [Product Counsel](https://feeny.ai/job/product-counsel-rain-washington-vzxxnv560m7f) — Washington, DC - [IT Manager](https://feeny.ai/job/it-manager-rain-new-york-fdt46g3sb6pp) — New York, NY - [AI Operations Lead](https://feeny.ai/job/ai-operations-lead-rain-new-york-vwzphs4cnp8n) — New York, NY - [Security Engineer - AppSec](https://feeny.ai/job/security-engineer-appsec-rain-remote-scy9bdx23480)