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Sierra

Builds AI agents for customer conversations

Forward Deployed Infrastructure Engineer

Cloud EngineeringConfirmed live in the last 24 hours
Full-timeTokyo, JapanIn-person

About the Job

Requirements

  • At least four years of professional experience in infrastructure, DevOps, platform engineering, or solution architecture, particularly involving customer-facing deployments.
  • Strong knowledge and practical experience with AWS services, Terraform, container orchestration, and cloud networking, including VPC, IAM, DNS, and load balancing.
  • A track record of deploying into customer-managed cloud environments and handling security reviews, compliance requirements, and change-management processes.
  • Ability to collaborate with customer stakeholders ranging from platform engineers to CISOs, clarify problems amid uncertainty, and translate infrastructure discussions into concrete, actionable deployment plans.
  • Strong operational design skills, including considering upgrades, rollbacks, monitoring, and incident response from the initial design and deployment stages.
  • Ability to adapt to a fast-changing environment and collaborate across engineering, product, and go-to-market teams.
  • A degree in computer science or a related field, or equivalent practical experience.
  • Strong verbal and written communication skills in both English and Japanese.

Responsibilities

  • Design and implement deployment strategies tailored to customer environments, including VPC configuration, access and permissions management, networking, and infrastructure provisioning.
  • Manage the full infrastructure lifecycle for key customers, from initial deployment through ongoing upgrades, scaling, and incident response.
  • Build and maintain deployment runbooks, upgrade procedures, and automation tools to create a reliable and repeatable operational foundation.
  • Work with engineering teams to improve the product and infrastructure so the platform can be reliably deployed and operated across varied customer requirements and environments.
  • Work closely with customer platform engineering, security, and DevOps teams to address infrastructure constraints and compliance requirements.
  • Partner with sales and customer success teams on presales and onboarding technical support, clarify infrastructure requirements, and turn customer needs into actionable deployment plans.

Desired Qualifications

  • Experience developing or operating Go services, GraphQL APIs, or LLM infrastructure in production.
  • Experience building deployment operating practices, playbooks, and tools from scratch in an early-stage startup or similarly unstructured environment.
  • Knowledge or experience in observability and incident management for distributed systems, including Prometheus, Grafana, or Datadog.
  • Experience designing CI/CD pipelines, automating deployments, or building infrastructure self-service tools for enterprise customers.

About the Company

Sierra

Builds AI agents for customer conversations

Sierra builds AI agents that handle customer conversations for businesses, from answering support questions to guiding purchases and managing account requests. Companies deploy the same agent across voice, chat, email, and messaging channels, with behavior shaped by their brand guidelines and business policies. Its Ghostwriter tool creates and updates agents from plain instructions or existing company materials, then tests changes before teams approve them. The platform connects agents to business systems so they take action, and Sierra charges for completed outcomes rather than the AI tokens consumed. Sierra was founded in 2023 and is headquartered in San Francisco, California, United States.

Company size
1,001-5,000
Company stage
Series E
Total funding
$1.6B
Headquarters
San Francisco, CA
Founded
2023

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