Senior AI Infrastructure Engineer (Internal Platform)

Figma; United States; Remote; USD 170,000 - 250,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Retirement benefits

Parental leave

Mental health benefits

Paid time off

Sick leave

Job summary

Figma is seeking a senior infrastructure-focused engineer to anchor the Infrastructure & Hosting pillar for internal AI apps, bots, and agents. You’ll design runtime patterns, build cost-aware routing, and ensure secure, auditable AI workloads across the company.

You’ll collaborate with IT, Security, and AI product teams to implement gateways, telemetry, and guardrails. This role offers remote or hub-based work across the United States and a chance to shape platform strategy from day one.

Qualifications

• 5+ years of software engineering experience, with significant time in infrastructure, platform, or backend engineering.
• A track record of building internal platforms or paved paths that other engineers and teams adopted, not just maintained.
• Strong system design skills and experience architecting resilient, observable production systems.
• Hands-on experience with LLM operations: model gateways or routing, agent runtimes, evals, or cost/usage instrumentation.
• Experience with identity and access management in an enterprise environment (e.g., Okta, SSO, secure service-to-service auth).

Responsibilities

• Design and build the hosting golden path for internal AI applications, bots, and agents, including runtime patterns for long-running workflows, scheduled jobs, and agent execution.
• Build the model routing layer that directs tasks across frontier and lower-cost models based on cost, capability, and policy with a full audit trail.
• Stand up observability, usage analytics, audit logging, and per-team cost attribution for AI workloads across the company.
• Integrate identity, access, and security patterns so every internal AI app is safe on day one, including the sanctioned path for workflows touching sensitive data.
• Partner with engineers on product AI infrastructure teams to share gateways and telemetry rather than building parallel systems.
• Help shape the team’s platform strategy, roadmap, and engineering best practices as a founding member of the infrastructure pillar.

Skills

Software engineering

Platform/infrastructure

System design

LLM operations

Identity & access management

Tools

Okta

Job description

Figma is seeking a senior infrastructure-focused engineer to anchor the Infrastructure & Hosting pillar for internal AI apps, bots, and agents. You’ll design runtime patterns, build cost-aware routing, and ensure secure, auditable AI workloads across the company.

You’ll collaborate with IT, Security, and AI product teams to implement gateways, telemetry, and guardrails. This role offers remote or hub-based work across the United States and a chance to shape platform strategy from day one.