Senior DevOps and infrastructure engineer

About the environmentA SaaS platform for remote monitoring and management of point-of-sale devices, about 100,000 agents. The backend is Windows-based and runs on AWS: .NET and legacy VB components with a large SQL Server database. The team is small, and this person would work directly with the lead developer.

What they'll own

• Monthly patching, monitoring, alerting, and backup checks across the Windows server estate, with the focus on preventing outages, not just responding to them
• Building and maintaining a cost-controlled QA environment, including load testing that simulates production traffic
• CI/CD pipelines with automated deployment and rollback
• Infrastructure as code for new and existing resources
• Tracking and reducing AWS costs
• Gathering evidence for PCI compliance and security reviews
• Supporting larger infrastructure changes, such as a database migration and a move to a message queue

Must have

• Senior-level, hands-on production experience administering Windows Server (patching, IIS, file shares, Active Directory)
• SQL Server operations: backups, log management, performance, and high availability; experience with Amazon RDS a plus
• AWS: EC2, RDS, networking, IAM, CloudWatch, and Systems Manager
• Terraform or CloudFormation
• CI/CD for .NET applications, with any common tool
• PowerShell, plus Python or Bash
• Daily, practical use of AI coding tools such as Claude Code for scripting, infrastructure as code, and log analysis

Nice to have

• RabbitMQ or Amazon MQ
• PostgreSQL or SQL Server migration experience
• Familiarity with legacy .NET, WebForms, or VB6 systems
• Load testing tools such as k6 or JMeter
• Experience in PCI DSS environments

Working expectations

• Strong written and spoken English, and comfort owning problems end to end without close supervision
• Meaningful overlap with US business hours and participation in an on-call rotation