Senior Infrastructure Engineer

Deep production experience with AWS: ECS, EKS, Fargate, RDS, VPC, IAM. Fluent in Terraform. Everything is infrastructure as code. Comfortable with Linux systems, Docker, container orchestration. Experience running headless browsers or similar workloads at scale (Playwright, Puppeteer, raw CDP). Understand networking: TCP, websockets, load balancing, multi-region. Built observability stacks that engineers actually use (Prometheus, Grafana, Datadog, or similar). Can debug memory leaks, zombie processes, and weird container behavior at 2am. Fluent in English, written and spoken. BSc or higher in CS or equivalent technical field. Experience with browser clouds or similar high-concurrency containerized workloads. Multi-region and multi-cloud experience. Cost optimization at scale. Connection pooling experience (PgBouncer or similar). Understanding of database sharding concepts. Experience with Lambdas or serverless for specific workloads. TLS fingerprinting, CDP internals, or browser automation depth.

Own and improve observability across the entire stack: metrics, logging, alerting, dashboards. Architect and operate browser cloud infrastructure: containerized browsers, session isolation, crash recovery, autoscaling. Handle websocket connections, CDP tunnels, and TCP-level tuning for browser automation. Write and maintain Terraform for all infrastructure. Tune autoscaling, capacity planning, and cost optimization. Expand to new regions as we grow. Experiment with Lambdas, new cloud providers for custom scraping needs. Debug production issues: memory leaks, zombie processes, network failures. Build disaster recovery and incident response runbooks. Work with Linux systems, Dockerfiles, container orchestration daily.