Cloud System Administrator

**About This Role**:
**Key Responsibilities**:

- Manage and maintain our AWS cloud infrastructure, ensuring optimal performance and reliability.
- Monitor system performance and availability, implementing measures to improve efficiency and prevent downtime.
- Perform regular system maintenance, updates, and patches to ensure security and stability.
- Collaborate with the development and operations teams to design and implement scalable and secure cloud solutions.
- Develop and maintain documentation for cloud systems, configurations, and procedures.
- Ensure compliance with relevant security standards and best practices.
- Assist in automating routine tasks and processes to improve efficiency.
- Manage and maintain datacenter infrastructure hosted on Rackspace, ensuring optimal performance and reliability.
- Monitor system performance and availability, implementing measures to improve efficiency and prevent downtime.
- Perform regular system maintenance, updates, and patches to ensure security and stability.
- Troubleshoot and resolve datacenter-related issues, providing timely support to internal teams.
- Stay up to date with the latest AWS services and technologies and recommend improvements to existing systems.
- Perform Kubernetes maintenance and support the Kubernetes ecosystem; including upgrading/migrating Istio service mesh.

**Qualifications**:

- Highly skilled in working with Kubernetes, service mesh implementations, GitOps tools (ArgoCD, Flux), and knowledge of connecting Kubernetes with APM and secrets management (ESO).
- Proven experience as a Systems Administrator, Cloud Administrator, or similar role with a focus on AWS and Linux-based deployments.
- Exceptional diagnostic skills to identify and resolve complex system issues efficiently.
- Analytical thinking and a methodical approach to troubleshooting system and network problems.
- Ability to perform root cause analysis and implement preventive measures to avoid recurrence.
- Strong knowledge of AWS services and tools (e.g., EC2, S3, RDS, CloudFormation, Lambda).
- Experience with infrastructure as code (IaC) tools (e.g., Terraform, CloudFormation).
- Strong working knowledge of Linux distributions (CentOS, Ubuntu, RedHat), including system boot processes, file systems, and user/group management.
- Skill in creating and managing cron jobs for automated task scheduling.
- Proficiency in scripting and automation (e.g., Python, Bash, PowerShell).
- Familiarity with containerization and orchestration technologies (e.g., Docker, Kubernetes) is a plus.
- Solid understanding of networking concepts and protocols.
- Excellent troubleshooting and problem-solving skills.
- Effective communication and teamwork abilities.
- AWS certifications (e.g., AWS Certified SysOps Administrator, AWS Certified Solutions Architect) are a plus.
- Diagnosing and resolving issues with AWS services and infrastructure.
- Use of AWS Support and documentation for problem-solving.
- Familiarity with common troubleshooting tools and techniques.
- In-depth knowledge of Linux distributions (e.g., Ubuntu, CentOS, Red Hat, Debian).
- Proficiency in using the Linux command line interface (CLI).

**Core Required Skills**:

- EC2 (Elastic Compute Cloud)
- S3 (Simple Storage Service)
- RDS (Relational Database Service)
- VPC (Virtual Private Cloud)
- IAM (Identity and Access Management)
- Lambda
- CloudFormation
- CloudWatch
- Understanding of VPCs, subnets, routing tables, and security groups
- Knowledge of DNS services, such as Route 53
- Familiarity with VPNs
- CLI: Bash, grep, awk, find, and other key commands.