Senior Site Reliability Engineer

Summary

Join Juniper Square as a Senior Site Reliability Engineer and contribute to scaling, securing, and improving our cloud infrastructure. You will work with modern cloud-native technologies, automate infrastructure management, and enhance system reliability. Collaborate with software engineers and the platform team to build and maintain self-service tools. This role demands high ownership, a bias for action, and strong problem-solving skills. We offer a variety of work arrangements, from fully remote to working in one of our physical offices. The position includes a competitive salary and a comprehensive benefits package.

Requirements

• 5+ years of experience in SRE, DevOps, or Infrastructure Engineering with a proven track record of ownership and initiative
• Strong experience with Kubernetes, Helm, and CNIs, including networking and security
• Proficiency in AWS services such as RDS, Aurora, IAM, VPC, EKS, and EC2
• Experience in PostgreSQL administration, including performance tuning and high availability in RDS/Aurora
• Hands-on experience with GitHub Actions and ArgoCD for secure and scalable CI/CD automation
• Strong background in Infrastructure as Code (IaC) with Crossplane and Terraform
• Deep understanding of observability and monitoring with Datadog
• Experience with Kyverno for Kubernetes policy-based security enforcement
• Proficiency in Python and Bash scripting for automation and system management
• Strong understanding of CI/CD security best practices and ability to implement controls for securing deployments
• Self-starter mentality —actively seeks out and fixes problems without waiting for assignments
• High ownership and accountability —takes initiative in driving improvements and following through to resolution
• Strong problem-solving mindset —identifies bottlenecks, inefficiencies, and risks, then delivers scalable solutions
• Excellent communication skills —documents processes in Confluence, collaborates cross-functionally, and influences engineering teams toward operational excellence

Responsibilities

• Own reliability and scalability initiatives—identify, prioritize, and implement solutions before issues escalate
• Participate in an on-call rotation, responding to incidents, performing root cause analysis, and driving long-term fixes
• Design, deploy, and manage Kubernetes clusters using Helm charts, Cilium, and Karpenter to optimize performance and cost
• Architect and maintain AWS infrastructure with a focus on RDS/Aurora PostgreSQL, networking, and scaling best practices
• Implement GitHub Actions CI/CD pipelines, integrating security best practices and automation
• Define and enforce policy-based security for Kubernetes using Kyverno
• Automate infrastructure provisioning with Crossplane and Terraform to ensure consistency and scalability
• Enhance observability and monitoring using Datadog to proactively detect and resolve issues
• Improve security and reliability by identifying risks in CI/CD, cloud environments, and Kubernetes, then implementing necessary safeguards
• Lead post-incident reviews, drive lessons learned into long-term improvements, and document best practices in Confluence

Preferred Qualifications

• Deep experience with GitHub Actions for CI/CD automation, with a focus on security best practices
• Extensive knowledge of Helm charts for managing Kubernetes applications
• Strong experience in PostgreSQL, including optimization and high availability in RDS/Aurora
• Experience with NoSQL databases and best practices for scaling and performance
• Proven ability to influence engineering culture toward automation, self-service, and operational excellence
• Experience with Karpenter for Kubernetes autoscaling
• Previous experience with cost optimization strategies in AWS environments
• Experience with Atlassian tools (Jira, Confluence) for tracking incidents and documentation
• Strong experience with and a passion for expanding AI into the SRE and DevOps world

Benefits

• Health, dental, and vision care for you and your family
• Life insurance
• Mental wellness coverage
• Fertility and growing family support
• Flex Time Off in addition to company paid holidays
• Paid family leave, medical leave, and bereavement leave policies
• Retirement saving plans
• Allowance to customize your work and technology setup at home
• Annual professional development stipend