Senior Platform Engineer

Lob was founded in 2013 by technical co-founders with a vision to connect the world one mailbox at a time. Today, we're transforming the way businesses use direct mail and bringing the power of technology to a traditionally manual channel. Our modern logistics and fulfillment engine helps businesses to build and scale high-quality, personalized direct mail programs without the operational burden. As we grow to meet the evolving needs of our customers and expand our product offerings, we’re building a team to shape the future of direct mail. About The Role We are looking for a Senior Platform Engineer to help scale and improve the reliability, observability, performance, and cost efficiency of our platform infrastructure. This role is focused on observability engineering and infrastructure optimization across AWS environments. The ideal candidate has deep hands-on experience with Datadog, OpenTelemetry, and HashiCorp Nomad, and understands how to build highly visible, scalable, and operationally efficient systems while actively reducing unnecessary infrastructure spend. You will work closely with engineering teams to improve telemetry, monitoring, performance testing, platform reliability, and cloud infrastructure efficiency across a fast-moving distributed environment, including leveraging modern AI-driven tooling and operational workflows where appropriate. What You’ll Work On Building and improving observability across distributed systems and services Designing dashboards, alerting, metrics, tracing, and telemetry pipelines Improving operational visibility using Datadog, and OpenTelemetry Helping evolve and mature the organization’s observability strategy and tooling Supporting and improving HashiCorp Nomad orchestration environments Identifying and implementing AWS cost-saving opportunities across compute, storage, and platform infrastructure Improving infrastructure utilization and operational efficiency across Nomad workloads Optimizing S3 storage utilization, lifecycle management, and storage costs Designing and maintaining performance testing environments and tooling Running load and performance tests to identify bottlenecks and scalability issues Managing and tuning Elasticsearch/OpenSearch environments Troubleshooting production performance issues across services, infrastructure, and databases Partnering with engineering teams to improve platform reliability, scalability, and infrastructure efficiency 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 Qualifications 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 pl