Senior Platform Engineer

Lob is a company focused on transforming the way businesses use direct mail through technology. They are seeking a Senior Platform Engineer to enhance the reliability and performance of their platform infrastructure while focusing on observability engineering and cost efficiency in AWS environments.

Responsibilities:

• Lead observability initiatives across infrastructure and applications
• Design and maintain monitoring, telemetry, dashboards, tracing, and alerting systems
• Build actionable visibility into platform health, reliability, and performance
• Improve incident detection, troubleshooting, and operational response capabilities
• Define observability standards and best practices across engineering teams
• Drive infrastructure cost optimization initiatives across AWS services and platform environments
• Analyze infrastructure utilization and recommend performance and cost efficiency improvements
• Maintain and improve infrastructure-as-code standards and workflows
• Design, build, and maintain scalable performance testing environments and tooling
• Execute and analyze load/performance testing initiatives
• Support and improve Nomad-based orchestration environments
• Troubleshoot complex production and infrastructure issues across distributed systems
• Collaborate closely with engineering teams to improve scalability, reliability, operational visibility, and infrastructure efficiency
• Create and maintain operational documentation and platform best practices

Requirements:

• 7+ years of experience in platform engineering, infrastructure engineering, or site reliability engineering
• Strong hands-on experience with HashiCorp Nomad
• Deep expertise with Datadog
• Strong experience implementing and operating observability platforms using OpenTelemetry and modern monitoring tooling
• Experience with Grafana or similar visualization and observability platforms
• Strong understanding of distributed tracing, metrics, logging, and monitoring best practices
• Experience building dashboards, alerts, telemetry pipelines, and operational visibility tooling
• Strong experience identifying and implementing AWS cost optimization strategies in production environments
• Strong knowledge of S3 optimization, lifecycle management, and storage cost reduction
• Experience building and running performance/load testing environments
• Strong troubleshooting and performance analysis skills across distributed systems
• Strong experience operating infrastructure in AWS environments
• Strong experience with Terraform and infrastructure-as-code practices
• Experience balancing platform reliability, observability, and infrastructure cost efficiency at scale
• Experience working with distributed and event-driven architectures using technologies such as Redis, SQS, or Temporal
• Experience managing and tuning Elasticsearch or OpenSearch clusters
• Experience working in fast-paced engineering environments
• Strong communication and collaboration skills
• Exposure to PostgreSQL RDS to Aurora migrations
• Experience with Kubernetes
• Experience with CI/CD systems and deployment automation
• Experience with Go, Python, or TypeScript