Systems Administrator

Job Description

Responsibilities:
Cloud Infrastructure Operations & Reliability

• Manage and maintain cloud infrastructure environments across major providers such as AWS, Google Cloud, or Microsoft Azure.
• Ensure high availability and performance of systems supporting transaction routing, payment processing, and backend platform services.
• Implement capacity planning, scaling strategies, and infrastructure performance tuning.
• Support multi-zone and disaster recovery architectures aligned with strict SLA and uptime targets.
• Other duties as assigned

Monitoring, Incident Response & Operational Excellence

• Monitor infrastructure health, application dependencies, and transaction performance indicators.
• Troubleshoot production incidents and perform root cause analysis with preventive improvement actions.
• Improve operational readiness through automation of routine maintenance and infrastructure recovery workflows.
• Collaborate with DevOps and engineering teams to improve deployment stability and environment consistency.

Automation & Infrastructure Engineering

• Develop scripts and tooling to automate provisioning, configuration management, patching, and environment validation.
• Support Infrastructure as Code practices using tools such as Terraform or cloud-native automation frameworks.
• Improve operational efficiency by standardizing environment builds and configuration baselines.
• Maintain accurate system documentation, architecture diagrams, and operational runbooks.

Security, Compliance & Governance

• Enforce cloud security best practices including identity access management, encryption, network segmentation, and secure configuration standards.
• Support compliance initiatives aligned with PCI DSS, ISO 27001, and financial regulatory expectations.
• Assist internal and external audit activities by maintaining traceability of infrastructure changes and system configurations.
• Participate in vulnerability remediation and security hardening programs.

Cost Optimization & Resource Efficiency

• Monitor cloud resource utilization and identify opportunities for performance optimization and cost efficiency.
• Implement governance controls such as tagging standards, lifecycle policies, and rightsizing strategies.
• Provide operational insights into infrastructure usage trends and resource consumption patterns.

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