Role: Senior Cloud Systems Admin
Location: Plantation, FL (Hybrid - 4 days in office/1 remote)
Contract: 6 Months C2H
Job Description:
• Design, build, and maintain secure, scalable
cloud infrastructure using Terraform and AWS best practices
• Implement and manage AWS multi-account
environments via Control Tower
• Administer cloud-based infrastructure across AWS
(primary) and our minor Azure footprint, including instance management, storage
scaling, and cost monitoring
• Assist in the transition from traditional
server-based architectures to serverless solutions using AWS Lambda
• Automate infrastructure deployment and
application delivery using GitHub Actions and CI/CD pipelines
• Manage and maintain Windows and Linux server
environments, both on-premises and in the cloud
• Manage user lifecycles, permissions, and
security groups using Okta and local Active Directory
• Administer endpoint management through Kandji
(macOS) and ManageEngine Endpoint Central (Windows)
• Support integration of infrastructure with Okta
for identity and access management, including Conditional Access policies
• Support the rollout and ongoing administration
of Zscaler for secure network access
• Coordinate with our SecOps team to ensure
SentinelOne coverage extends across servers and endpoints
• Configure and manage core AWS networking and
edge security services (VPC, Transit Gateway, Cloud WAN, ELB, WAF), as well as
office networking components including firewalls, VLANs, and hardware inventory
• Administer and support database technologies
including MSSQL, MySQL, and PostgreSQL
• Execute routine security updates, firmware
updates, and vulnerability patching across servers and network hardware
• Monitor and test backup operations, ensuring DR
protocols are functional and meet RPO/RTO targets
• Migrate workloads from existing environments
into new AWS accounts, ensuring minimal downtime
• Diagnose hardware, software, network, and system
issues, documenting resolutions and assessing business impact
• Monitor and optimize infrastructure for
performance, security, and cost efficiency, implementing improvements as needed
• Architect solutions based on business processes
and best practices, optimizing for performance, scalability, and cost
efficiency
• Participate in incident response and root cause
analysis for infrastructure issues
• Maintain clear and up-to-date documentation of
our infrastructure architecture, procedures, and SOPs
Skills Required
- Hands-on experience designing and managing AWS infrastructure using Terraform
- Experience implementing and managing AWS multi-account environments with AWS Control Tower
- Experience with AWS Lambda and transitioning workloads to serverless architectures
- Experience automating infrastructure and deployments using GitHub Actions and CI/CD pipelines
- Administering Windows and Linux server environments (on-premises and cloud)
- Experience with Okta for user lifecycle, permissions, and Conditional Access integration
- Experience with local Active Directory administration and integration with cloud identity
- Experience administering macOS via Kandji and Windows endpoints via ManageEngine Endpoint Central
- Familiarity with Zscaler for secure network access
- Familiarity with SentinelOne or comparable endpoint protection platforms
- Experience configuring and managing AWS networking and edge security: VPC, Transit Gateway, Cloud WAN, ELB, WAF
- Experience with office networking components including firewalls, VLANs, and hardware inventory
- Experience administering databases: MSSQL, MySQL, and PostgreSQL
- Experience with backup/DR procedures, patch management, firmware updates, and vulnerability remediation
- Experience migrating workloads into AWS accounts with minimal downtime
- Ability to mentor junior cloud engineers and systems administrators
What We Do
Established in 2004, 3Core System is a certified small minority owned business providing ERP Systems Integration, AMS, IT Consulting and Staff Augmentation Services to Fortune 1000, SMB, and State, Local and Education (SLED) customers. While our System Integration services help organizations achieve digital and cloud transformation objectives, AMS Services help increase the availability of critical services of end user applications. On the other hand, our IT Consulting Services would provide subject matter experts to help you assist with specific project needs and the Staff Augmentation services help you balance workload and achieve budget parameters. >ERP System Integration Services: 3Core Systems is an SAP Silver Partner and authorized service provider offering technical architecture, application design and configuration, integration, testing, data migration and solution adoption services for solutions including SAP SuccessFactors, SAP HCM On-Premises and SAP Business Intelligence >Application Management Services (AMS): We offer post go-live, System Health Check and Optimization, Function Enhancements, Integration Monitoring, Release, and patch services. Our AMS services span across SAP Solutions including ERP (S/4 HANA), Financial Management, Human Capital Management, Data and Analytics, Supply Chain, CRM, and Customer Experince. >IT Consulting and Staffing Augmentation Services: Ever since its inception, 3Core Systems has been offering IT Consulting and Staff Augmentation solutions including temporary, long-term, project based and contract staffing services that could be personalized based on your needs. Our staffing services span across emerging technologies and legacy solutions including but not limited to Artificial Intelligence, Machine Learning, Data Science, Cloud, ERP, CRM, BI/BW/ETL, Database, Web & E-Commerce, UI/UX, Network & Security and Mobile.
