About the role
Staff Infrastructure & Performance Engineer As a Staff Infrastructure Performance & Engineer , you will own and evolve the performance, reliability, and scalability of Nash’s core infrastructure. You’ll work directly with the Engineering Leadership team, platform, and product engineering teams to design and operate low-latency, business-critical systems that power real-time logistics for some of the largest retailers in the world. This is a senior, high-impact role focused on elastic capacity, high availability, cloud-native architectures , Postgres performance , and enterprise-grade CI/CD and multi-region deployments . You will set technical direction, define best practices, and deploy systems for the largest retailers in the world powering their business critical workflows.
Responsibilities Own infrastructure performance and reliability across Nash’s production systems, with a focus on low latency, high throughput, and predictable behavior under load. Design, build, and optimize AWS-based infrastructure , leveraging managed services with a strong emphasis on ECS/Fargate . Lead Postgres performance engineering , including query optimization, indexing strategies, connection management, replication, cluster design, and failover. Architect and operate multi-region, highly availability systems with strong resiliency, disaster recovery, and failover guarantees. Design and evolve enterprise-grade CI/CD pipelines that support safe, repeatable, and fast deployments across environments and regions. Drive observability standards (metrics, logs, tracing, SLOs) and use data to proactively identify and eliminate performance bottlenecks. Partner with application engineers to influence system design decisions that impact scalability, latency, and reliability. Lead incident response and postmortems, focusing on root cause analysis, systemic fixes, and long-term resilience. Set infrastructure and performance best practices and mentor engineers across the organization.
