5 months ago
Base Salary
$230k - $390k/yr
Responsibilities
- Design the secure-capture protocol supporting voice, chat, telephony, contact-center, and Sierra voice-stack channels
- Build and extend a tokenization platform using per-token envelope encryption and unique data keys
- Own the infrastructure-enforced security perimeter around the cardholder-data environment
- Build deterministic, auditable cardholder-data detection in the agent hot path
- Help design a purpose-built detection model while ensuring no language model sees plaintext cardholder data
- Develop processor-agnostic charging, self-serve onboarding, and single-tenant payment deployments
- Set technical direction for complex platform problems and create abstractions that work across teams and customers
- Raise engineering standards and support other engineers building on the platform
Requirements
- 7+ years building backend, platform, or infrastructure systems
- Track record of shipping and operating high-reliability production services
- Fluency in a systems language, with Go used at Sierra
- Experience owning critical distributed systems end to end, including design, production operation, and on-call
- Strong security instincts involving blast radius, least privilege, and prevention of unsafe states
- Experience setting technical direction on ambiguous, high-stakes problems
- Ability to build reusable abstractions and protocols over inconsistent external systems
- Degree in Computer Science or a related field, or equivalent professional experience
- Preferred experience in payments, PCI, tokenization, key management, healthcare, or other regulated or sensitive-data domains
- Preferred depth in applied cryptography, key management, voice or telephony, real-time media pipelines, cloud security, or network isolation
- Preferred experience building internal protocols, SDKs, and self-serve developer platforms
Benefits
- Flexible unlimited paid time off
- Medical, dental, and vision benefits for employees and families
- Life insurance and disability benefits
- Retirement plan dependent on country of employment
- Parental leave
- Fertility and family-building benefits through Carrot
- Lunch, snacks, and coffee
- Discretionary benefit stipend
- Free alphorn lessons
- Equity-plan eligibility for eligible full-time employees
- Primarily in-person work with offices in San Francisco and other global locations
About Sierra
Sierra builds an enterprise conversational AI platform that powers customer service and other customer-facing interactions for large organizations. The company sells SaaS and deployed solutions that integrate with enterprise systems and meet security and compliance requirements. Headquartered in San Francisco with offices across North America, Europe, and Asia-Pacific, Sierra was co-founded by Bret Taylor and Clay Bavor, longtime leaders at Salesforce, Facebook, and Google.