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.
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.
Security Engineering is a small team that answers one question: was it built right? We run our own AI-driven red team against Rain's code and cloud, gate pull requests before they merge, and write the baselines that say how every system should be configured. This role owns everything else: the backend services, APIs, cloud, and edge that move real money for real customers.
We work closely with Security Operations: we give them high-quality findings to coordinate fixes for, and clear configuration rules they can build detections on.
Security Engineering makes sure Rain is built right. We run our own AI-driven red team against our code and cloud, gate pull requests before they merge, and set the baselines for how every system is configured. We give Security Operations high-quality findings to coordinate fixes for, and clear configuration rules to build detections on.
You'll be Rain's application security expert and the quality bar for every non-chain finding we produce. You'll hold the line with engineers when it matters,



and make the case so they agree, not just comply.
DDoS protection, rate limiting, WAF rules, and abuse controls

- Write secure configuration baselines for our cloud, code, and SaaS, and turn them into automated checks
- Grow our PR security gate so more bugs are blocked before merge
- Own attack surface coverage, and run architecture reviews on new and high-risk systems
- Find, test, and pick the best security tools, whether we buy, adopt, or build

4+ years in application security, product security, or security-minded backend engineering

- You've owned security decisions. You can tell a senior engineer their design needs to change and keep a good working relationship
- You can read an unfamiliar codebase (TypeScript/Node.js) and find the bug that matters, and you know a scary-sounding finding from a real one
- Hands-on cloud security (ideally GCP), Terraform, and edge defenses like WAFs and rate limiting
- You'd rather ship a check than write a document, and you use AI tools heavily without trusting them blindly

BONUS ATTRIBUTES

- Experience building security scanners, static analysis rules, or LLM-based review tools
- AI security for our agents and agentic payments, or corporate security alongside IT

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 – work from home, come into an office, or both. Easy to access advantages For US Rainmakers, we cover 95% of your health, dental, and vision plan costs and 90% for your dependents, plus a 100% company-subsidized life insurance plan.
Retirement goals Plan for the future with confidence. Equity plan Every Rainmaker gets an equity option plan so we all benefit from our success.
Health and Wellness High performance begins from within. In-office meals Rainmakers working from the office enjoy lunch and dinner on us, covered with a DoorDash credit.
Time together helps us build relationships and a common destiny. Expect team and company offsites, both domestic and international.

📌 Technology Security Engineer (Canada)
🏢 Rain
📍 Canada