Security Engineer

Rain makes the next generation of payments possible across the globe. We’re a lean and mighty team of passionate builders and veteran founders. Our infrastructure makes stablecoins usable in the real-world by powering card transactions cross-border payments B2B purchases remittances and more. We partner with fintechs neobanks and institutions to help them launch solutions that are global inclusive and efficient. You will have the opportunity to deliver massive impact at a hypergrowth company that is funded by some of the top investors in fintech crypto and SaaS including Sapphire Ventures Norwest Galaxy Ventures Lightspeed Khosla and several more. If you’re curious bold and excited to help shape a borderless financial future we’d love to talk.

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.

As a Security Engineer with a focus on Application Security you’ll be a key contributor in embedding security into Rain’s engineering lifecycle and supporting delivery of secure trusted applications:

• Lead application security assessments including vulnerability scanning code reviews and threat modeling with engineering teams

• Partner closely with product and development squads to drive remediation and help teams understand and resolve security findings efficiently

• Integrate and scale automated security tooling across CI/CD pipelines (SAST DAST SCA IaC) to shift security left

• Develop and maintain application security standards patterns and guardrails that reduce risk and support rapid delivery

• Drive threat modeling and risk assessments for new features APIs and services

• Collaborate with Cloud & Infrastructure Security to align security controls across layers and support cloud-native security requirements

• Support incident response for application-level security events and contribute to root-cause analysis and future mitigation strategies

• Help build internal training and awareness programs to elevate secure coding and developer security literacy

• Track and surface key security metrics trends and continuous improvement insights to leadership

• 4–8+ years of experience in security engineering application security offensive security or secure software development; strong track record of securing modern applications

• Hands-on experience with security tools such as Semgrep Burp Suite Snyk Trivy or similar for static dynamic and dependency security analysis

• Solid understanding of web API and mobile security vulnerabilities (e.g. OWASP Top 10 API Top 10)

• Experience driving or participating in threat modeling and secure design reviews

• Familiarity with cloud concepts and securing cloud workloads

• Collaborative mindset — you enjoy working closely with engineers to co-create practical security solutions

• Practical understanding of SDLC and integrating security into development workflows

• Ability to independently identify prioritize and drive remediation on critical findings

• Experience balancing security risk with business and technical constraints

• Experience or exposure to runtime application protection (RASP) or advanced monitoring (e.g. eBPF-based tooling)

• Experience with cloud security automation frameworks such as Security Hub remediations or DLP improvements

• Security certifications like CISSP CSSLP OSCP GWAPT or similar

• Familiarity with compliance frameworks like SOC 2 ISO 27001 OWASP SAMM and aligning controls

• Prior experience in fintech payments or highly regulated environments

• Exposure to API security tooling and design best practices

• Unlimited time off 🌴 Unlimited vacation can be daunting so we require Rainmakers to take at least 10 days off.

• 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 receive a stipend to create a comfortable home environment.

• 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 Rainmaker an equity option plan so we can all 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 use 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 off-sites both domestically and internationally.

What We Do

Our technology makes it easy for companies—from fast-growing startups to global fintechs—to integrate stablecoins into their products platforms and payment flows. Whether they’re launching a credit card program enabling cross-border payments or embedding wallets Rain builds the tools to do it fast flexibly and compliantly. We’re built for the next generation of global finance. Our infrastructure combines the stability of trusted payment networks with the power of Web3—multi-chain support 7-day-a-week settlement and seamless stablecoin interoperability. We help companies unlock real-world use cases for digital assets without the regulatory headaches or crypto complexity. Rain is a Visa Principal Member and is trusted by over 130 organizations worldwide. We’ve processed hundreds of millions of dollars in transactions across 150+ countries—and we’re just getting started. If you’re excited about building the future of payments we’re always looking for more Rainmakers to help us make money move—instantly globally and securely.

Why Work With Us

Rain is building frontier fintech at a moment of real regulatory clarity which has unlocked a massive new market for stablecoins. Backed by top institutional and crypto-native investors we’re a lean team with a big mission. All Rainmakers take on real ownership tackle complex problems and have fun doing it.

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