Senior Site Reliability Engineer

LeanData helps the world’s fastest-growing companies automate, simplify, and accelerate revenue. We are looking for a Senior Site Reliability Engineer to lead the strategic evolution of our cloud infrastructure. Reporting directly to the SVP of Engineering, this role is designed for a builder - someone who wants to move beyond maintenance and into the realm of architectural transformation. You will have the autonomy to evaluate our existing AWS footprint and lead the charge in modernizing our environment. Your mission is to take a high-velocity system and implement the best practices, guardrails, and automated architectures that will support our next 10x of scale. You will be the primary authority on reliability, performance, and infrastructure security.

Responsibilities

Lead the design and implementation of a scalable, Cloud-First AWS architecture; Drive the transition toward fully automated, state-of-the-art Infrastructure as Code (Terraform); Design and implement robust Disaster Recovery (DR) and Business Continuity plans, moving services toward a zero-downtime deployment model; Own the strategy for capacity planning and autoscaling; Optimize compute resources (EC2, Lambda) to handle bursty traffic patterns with precision and cost-efficiency; Define monitoring and alerting philosophy using New Relic for deep APM and system insights; Partner with IncidentIO to catch and resolve issues before they impact customers; Partner with feature teams to refine Change Management and CI/CD pipelines; Harden network architecture and application security posture, including WAF management and secure service-to-service communication

Requirements

5+ years of experience in SRE, DevOps, or Systems Engineering, with a proven track record of managing complex AWS environments; Calm, decisive leadership during high-pressure outages; Extensive experience running blameless postmortems and driving remediation work to prevent recurrence; Deep experience configuring New Relic (or similar platforms) to create meaningful dashboards, SLIs, and SLOs; Deep experience with Terraform and a Code-First approach to infrastructure; Ability to look at a complex, needs-based architecture and formulate a clear, prioritized roadmap to move it toward industry best practices; Enjoy working with feature engineers to help them build reliability-by-design into their services; Bachelor’s degree in Computer Science, Engineering, or a related technical field (or equivalent professional experience); Experience with AWS (EC2, Lambda, SQS, SNS, ALB, API Gateway, S3, WAF); Experience with New Relic, IncidentIO, Terraform, Redis/Elasticache, Shell Scripting, NPM/PM2, NodeJS, Python, C#, Angular, Apex, Salesforce Managed Packages, MSFT Dynamics365

Benefits

Employee insurance premiums covered up to 90%; Stock options in LeanData for all full-time employees; Flexible PTO; 401K plan