The Opportunity

We process millions of SMS and MMS messages daily across a distributed platform built on Google Cloud — Cloud Run microservices, Pub/Sub event pipelines, Spanner databases, and Memorystore for Redis. Our infrastructure auto-scales aggressively to meet campaign demand, our data pipelines handle real-time delivery tracking at high velocity, and our systems must be fast, secure, and reliable around the clock.

We’re looking for a Senior Infrastructure & Security Engineer to own the reliability, security, and operational maturity of this platform. You’ll be the first dedicated infrastructure hire, working directly with the CTO to shape the technical foundation as we scale. This isn’t a role where you’ll maintain someone else’s runbooks — you’ll define the roadmap, make architectural decisions, and build the systems that keep our platform running and our customers’ data safe.

What You’ll Own

Infrastructure as Code & Cloud Architecture

Own and evolve our Terraform-managed GCP infrastructure spanning a Shared VPC host project and multiple service projects. Design for cost efficiency, resilience, and scalability across Cloud Run, Spanner, Pub/Sub, Cloud Storage, Memorystore for Redis, and Cloud Tasks. You’ll manage environment promotion across dev, staging, and production.

Reliability & Observability

Build comprehensive monitoring, alerting, and incident response capabilities using Cloud Monitoring, Cloud Logging, and Cloud Trace. Establish SLIs and SLOs for critical message delivery paths. Reduce mean time to detection and recovery. Design health checks and auto-healing patterns for Cloud Run services processing millions of daily messages.

Cloud Security

Harden our platform across network, application, and data layers. This includes VPC firewall rules and network policies, IAM role design and service account management, secrets management via Secret Manager, Cloud Armor policies for DDoS and rate limiting, API Gateway security configurations, and dependency scanning. Lead security reviews and own incident response for security events.

CI/CD & Developer Experience

Maintain and improve our GitHub Actions-based deployment pipelines for a TypeScript monorepo deploying to Cloud Run. Ensure the engineering team can ship safely and quickly with automated testing, linting, container builds, and environment-specific deployments. Optimize build times and deployment reliability.

Performance & Auto-Scaling

Tune Cloud Run autoscaling policies including min/max instances and concurrency settings for both public-facing API services and private Pub/Sub processing workers. Optimize Spanner query performance and node allocation. Ensure our distributed rate-limiting infrastructure using Redis handles coordination across horizontally scaling instances with sub-millisecond overhead.

Compliance & Data Protection

Help establish and maintain compliance practices relevant to messaging platforms, including TCPA requirements, carrier-specific policies, data retention and encryption standards, and audit logging. Ensure our platform meets the security and data handling expectations of enterprise customers.

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