Vista IT Solutions - Systems Administrator - Cloud Infrastructure

Description :

About the Role :

We are seeking an experienced Systems Administrator with strong expertise in cloud platforms, IT infrastructure, and cybersecurity.

The role focuses on managing secure, scalable, and highly available systems across on-prem and cloud environments.

The ideal candidate will proactively maintain infrastructure, strengthen security posture, and ensure business continuity through best-in-class operational practices.

Key Responsibilities :

Cloud & Infrastructure Management :

- Manage, monitor, and maintain cloud infrastructure (AWS / Azure / GCP).

- Provision and administer compute, storage, networking, and IAM resources.

- Ensure high availability, scalability, and cost optimization of infrastructure.

- Support hybrid environments integrating on-premise and cloud systems.

System Administration :

- Administer Linux and Windows servers, including installation, configuration, patching, and upgrades.

- Manage virtualization platforms and container environments (VMware, Docker, Kubernetes).

- Handle system performance tuning, capacity planning, and uptime monitoring.

- Maintain system documentation, runbooks, and asset inventories.

Cybersecurity & Compliance :

- Implement and manage security controls, firewalls, endpoint protection, and access policies.

- Monitor systems for security incidents, vulnerabilities, and threats.

- Conduct regular security audits, vulnerability assessments, and penetration testing support.

- Ensure compliance with security standards and best practices (ISO 27001, SOC 2, CIS benchmarks, etc.

- Manage backup, disaster recovery, and incident response processes.

Network & Access Management :

- Configure and manage network services including DNS, DHCP, VPNs, load balancers, and firewalls.

- Implement identity and access management (IAM), MFA, and least-privilege access controls.

- Troubleshoot network connectivity and performance issues.

Monitoring, Automation & Optimization :

- Implement monitoring, logging, and alerting solutions to ensure system reliability.

- Automate routine tasks using scripts or infrastructure-as-code where applicable.

- Proactively identify and resolve infrastructure and security risks.

Collaboration & Support :

- Work closely with development, DevOps, and security teams to support application deployments.

- Provide Level 2/3 infrastructure and security support.

- Participate in on-call rotations and incident response activities.

Required Skills & Experience :

Experience :

- 4 - 6 years of hands-on experience as a Systems Administrator / Infrastructure Engineer / Cloud Administrator.

Technical Skills :

- Strong experience with AWS, Azure, or GCP (at least one).

- Proficiency in Linux and Windows system administration.

- Hands-on experience with Docker and Kubernetes.

- Solid understanding of networking concepts (TCP/IP, DNS, VPN, firewalls, load balancing).

- Experience with backup, DR, and high availability architectures.

Cybersecurity :

- Knowledge of cybersecurity principles, vulnerability management, and incident response.

- Experience with security tools such as SIEM, EDR, antivirus, firewalls, IDS/IPS.

- Understanding of IAM, MFA, encryption, and secure access controls.

Good-to-Have Skills :

- Experience with Infrastructure as Code (Terraform, CloudFormation).

- Scripting skills in Bash, Python, or PowerShell.

- Familiarity with CI/CD pipelines and DevOps practices.

- Security certifications such as CEH, Security+, CISSP, AWS Security Specialty (preferred).

Educational Qualifications :

- Bachelors degree in Computer Science, IT, or a related field (preferred)