Senior Cloud Infrastructure Engineer (AWS)

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Cloud Infrastructure Engineer (AWS) based in the United States.

Role Overview

The Senior Cloud Infrastructure Engineer will design, maintain, and optimize secure, scalable, and highly available cloud infrastructure supporting a healthcare credentialing platform. This hands-on role combines AWS cloud engineering, DevOps, and systems administration, offering broad ownership across cloud and on-premises environments. You will serve as the subject matter expert for Linux, container platforms, Nutanix infrastructure, email relay systems, and SSL/TLS certificate management. Working within a small, collaborative team, you will drive infrastructure automation, strengthen security, and improve system reliability and operational efficiency. You will also contribute to compliance initiatives, disaster recovery planning, and continuous improvement across a predominantly Windows-based technology environment. This remote opportunity is ideal for a versatile engineer who enjoys solving complex technical challenges, adapting to changing priorities, and taking ownership of critical infrastructure.

Accountabilities

• Design, deploy, and operate secure, resilient, and highly available AWS infrastructure using services such as EC2, VPC, IAM, ECS, S3, RDS, Route 53, CloudWatch, and Systems Manager, following AWS Well-Architected Framework principles.
• Optimize cloud infrastructure for security, performance, scalability, cost efficiency, and disaster recovery readiness.
• Manage infrastructure as code using AWS CloudFormation and support CI/CD pipelines for container builds, infrastructure changes, and application deployments.
• Operate containerized workloads on Amazon ECS and ECS Anywhere, and administer Rancher-native Cattle clusters to ensure reliable application delivery.
• Serve as the Linux administration specialist, managing server provisioning, security hardening, patching, performance tuning, troubleshooting, and maintenance across physical, virtual, and cloud environments.
• Administer Windows Server infrastructure, including Active Directory, Group Policy, DNS, DHCP, and IIS, across on-premises systems and AWS EC2 instances.
• Maintain and optimize on-premises Nutanix hyperconverged infrastructure using Prism Element, Prism Central, and AHV, including virtual machine management, cluster health monitoring, capacity planning, upgrades, and data protection.
• Automate infrastructure configuration, system maintenance, and patch management using Python, PowerShell, Bash, and AWS Systems Manager.
• Manage SMTP relay infrastructure using Postfix and/or Amazon SES, ensuring reliable email delivery and maintaining SPF, DKIM, DMARC, and TLS configurations.
• Oversee SSL/TLS certificate lifecycle management, including certificate requests, installation, renewal, and troubleshooting across IIS, Linux web servers, Postfix, AWS Certificate Manager, and load balancers.
• Implement and maintain monitoring, logging, alerting, and incident response processes to strengthen system availability and operational reliability.
• Participate in on-call rotations and troubleshoot infrastructure incidents, identifying root causes and implementing sustainable corrective actions.
• Support security and compliance requirements, including HITRUST and SOC 2 controls, by maintaining secure configurations, operational documentation, and appropriate infrastructure safeguards.
• Collaborate with technical and business stakeholders to prioritize infrastructure improvements, resolve operational challenges, and adapt to evolving business needs.
• Contribute across cloud engineering, systems administration, and technical support responsibilities as priorities shift within a small, generalist team.

Requirements

• At least 5 years of professional experience in Cloud Engineering, DevOps, Site Reliability Engineering (SRE), and/or Systems Administration, including at least 3 years supporting production workloads in AWS.
• A bachelor’s degree in a related discipline or equivalent practical experience.
• Extensive hands-on experience with AWS services, including EC2, VPC, IAM, ECS, S3, RDS, Route 53, CloudWatch, Systems Manager, and AWS security and networking best practices.
• Expert-level Linux administration skills, including provisioning, hardening, patching, performance optimization, troubleshooting, and ser…