Senior Security Engineer – Platforms, AI

🕒 August 12

🌐 United States, Canada – Remote

🇺🇸 United States – Remote 🇨🇦 Canada – Remote

⏰ Full Time

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Spinwheel

WebsiteLinkedInAll Job Openings

11 - 50 employees

💳 Fintech

🔌 API

🤝 B2B

Fintech • API • B2B

Spinwheel is a fintech developer platform that provides real-time consumer credit and debt data, account-linking, and payments via simple APIs. Its products—Spinwheel Connect, Profile, and Pay—let businesses verify consumer liabilities and execute verified payments using minimal inputs (often just a phone number and date of birth), reducing friction in onboarding, balance transfers, and debt management. Spinwheel targets banks, fintechs, and other developers building embedded finance experiences and debt-related workflows.

📋 Description

• Secure and harden cloud infrastructure, applications, APIs, internal systems, and operational workflows • Implement and maintain security controls across production environments, CI/CD pipelines, cloud infrastructure, and internal tooling • Work with engineering teams to remediate vulnerabilities and improve secure development practices • Maintain encryption, secrets management, logging, monitoring, and access controls • Design and improve security architecture across cloud-native and distributed systems • Build scalable security processes integrated into engineering and operational workflows • Identify, assess, prioritize, and remediate security vulnerabilities • Conduct vulnerability scanning, penetration testing, adversarial testing, threat modeling, and manual security reviews • Coordinate remediation efforts and validate fixes • Secure AI-driven systems and automated agents against prompt injection, adversarial inputs, unauthorized actions, unsafe outputs, and data leakage • Design guardrails and validation layers for AI-generated actions • Monitor AI behavior for anomalies, abuse attempts, and unsafe decision-making • Improve security monitoring, alerting, logging, and incident response • Investigate suspicious activity, anomalies, and potential security incidents • Lead or support incident response, root cause analysis, and remediation planning • Recommend and implement preventative measures after incidents or security discoveries

🎯 Requirements

• 7+ years of hands-on experience in security engineering, infrastructure security, application security, DevSecOps, or offensive security • Exceptional knowledge of the AWS ecosystem • Experience identifying and remediating vulnerabilities in live production systems • Ability to drive projects, make decisions, and prioritize in a fast-moving environment • Strong communication skills for explaining technical security issues to engineering stakeholders • Experience securing AI/LLM-powered systems or automated agents preferred • Familiarity with prompt injection attacks, adversarial AI techniques, AI guardrails, and behavioral anomaly detection preferred • Experience with cloud security tooling, SIEM and observability platforms, penetration testing tools, endpoint security platforms, and infrastructure-as-code security preferred • Prior experience in high-growth startup, fintech, banking, or payments environments preferred • Certifications such as CISSP, CISM, AWS Security Specialty, or similar preferred • Ability to work legally in the United States or Canada, with sponsorship status disclosed

🏖️ Benefits

• Competitive salary and equity opportunities • Unlimited PTO • Flexible schedule • Paid holidays • Comprehensive health, dental, and vision insurance • 100% remote-first culture • Real opportunities for architecture ownership and technical leadership