Senior AWS Cloud Systems Operations Administrator

TEKsystems; San Antonio (TX); Hybrid; USD 80,000 - 107,000; Full time

Job summary

TEKsystems seeks an experienced Senior AWS Cloud Systems Operations Administrator in San Antonio, TX, offering a hybrid work model (3 days onsite, 2 days remote) with active TS/SCI clearance. This contract‑to‑fulltime role focuses on administering, securing, and optimizing enterprise cloud environments using AWS, EKS, and Linux/Windows systems.

The candidate will enhance security, perform patch management, and support development teams while driving modernization in a highly secure setting.

Qualifications

• Active TS/SCI security clearance.
• Bachelor's degree in Information Technology, Computer Science, Engineering, or a related field.
• Master's degree may substitute for two years of experience.
• Minimum 10 years of IT systems administration experience supporting both Microsoft and Linux environments.
• Demonstrated experience managing and operating workloads in AWS cloud environments.
• Experience with AWS cloud infrastructure administration, Amazon EKS, Kubernetes, Linux administration (RHEL), Windows systems administration, AWS CLI, STIG compliance and security hardening, Patch management and system upgrades.
• Experience supporting development and test teams within cloud environments.
• Understanding of AWS networking and security services.

Responsibilities

• Deploy, manage, and secure workloads within AWS cloud environments.
• Administer EKS and Kubernetes clusters for containerized apps.
• Perform Linux (RHEL) and Windows system administration, including patching and upgrades.
• Implement security controls and STIG compliance measures.
• Use AWS Console and CLI to provision and configure resources.
• Support cloud networking, identity management, and access controls.
• Monitor infrastructure and respond to operational issues to ensure availability.
• Collaborate with development and test teams on deployments and operations.
• Develop technical procedures and documentation.
• Analyze performance and recommend improvements.
• Assist cloud modernization and expansion of AWS and container platforms.
• Apply AWS Well‑Architected Framework to improve security and reliability.

Skills

AWS cloud

Kubernetes

Linux (RHEL)

Windows Server

AWS CLI

STIG compliance

Security hardening

Patch management

Education

Bachelor's degree in IT/CS/Engineering

Master's degree substitution for 2 years experience

Tools

AWS CLI

Job description

Location: Hybrid (3 Days Onsite / 2 Days Remote)

Clearance Required: Active TS/SCI

Employment Type: Full-Time

Overview

We are seeking a Senior AWS Cloud Systems Operations Administrator to support the administration, maintenance, security, and optimization of enterprise cloud environments. This role is ideal for an experienced systems administrator with deep expertise in AWS, Kubernetes, Amazon EKS, Linux administration, and cloud security compliance. The successful candidate will help sustain and modernize mission‑critical cloud infrastructure while supporting development, testing, and operational teams in a highly secure environment.

Key Responsibilities

• Deploy, manage, maintain, and secure workloads within AWS cloud environments.
• Administer and support Amazon EKS and Kubernetes clusters for containerized applications.
• Perform Linux (RHEL) and Windows systems administration activities, including patching, upgrades, troubleshooting, and performance optimization.
• Implement and maintain security controls, system hardening measures, and STIG compliance requirements.
• Utilize AWS Management Console and AWS CLI to provision, configure, and manage cloud resources.
• Support cloud networking, identity management, access controls, and AWS security services.
• Monitor cloud infrastructure and respond to operational issues to ensure system availability and reliability.
• Collaborate with development and test teams to support application deployments and ongoing operational requirements.
• Develop and maintain technical procedures, documentation, system architectures, and operational processes.
• Analyze system performance, identify opportunities for improvement, and recommend operational enhancements.
• Assist with cloud modernization initiatives and expansion of enterprise AWS and container platforms.
• Apply AWS Well-Architected Framework principles to improve security, reliability, operational excellence, and performance.

Required Qualifications

• Active TS/SCI security clearance.
• Bachelor's degree in Information Technology, Computer Science, Engineering, or a related field.
• Master's degree may substitute for two years of experience.
• Minimum 10 years of IT systems administration experience supporting both Microsoft and Linux environments.
• Demonstrated experience managing and operating workloads in AWS cloud environments.
• Experience with:
• AWS cloud infrastructure administration
• Amazon EKS
• Kubernetes
• Linux administration (RHEL)
• Windows systems administration
• AWS CLI
• STIG compliance and security hardening
• Patch management and system upgrades
• Experience supporting development and test teams within cloud environments.
• Understanding of AWS networking and security services.

Preferred Qualifications Candidates should possess at least three of the following certifications, training programs, or equivalent experience:

• AWS Certified Cloud Practitioner
• AWS Certified SysOps Administrator - Associate
• Operating a Production Kubernetes Cluster
• Kubernetes and Cloud Native Associate (KCNA)
• Certified Kubernetes Administrator (CKA)
• Red Hat Certified Engineer (RHCE)
• RH294: Red Hat Enterprise Linux Automation with Ansible

Additional Preferred Qualifications

• IAT Level II Certification (Security+ preferred)
• AWS SysOps Administrator Associate certification
• Two or more years of hands‑on experience with container orchestration and application deployment platforms
• Experience supporting enterprise cloud operations in highly secure environments
• Familiarity with AWS services and technologies such as Lambda and other cloud-native capabilities

Technical Environment

• Amazon Web Services (AWS)
• Amazon EKS
• Kubernetes
• Linux (RHEL)
• Windows Server Administration
• AWS CLI
• Cloud Security & Compliance
• STIGs and System Hardening
• Containerized Application Deployment
• Enterprise Cloud Operations

What You'll Gain

This position offers the opportunity to work on large-scale cloud infrastructure initiatives utilizing AWS, Kubernetes, and Amazon EKS. You'll contribute to mission‑critical operations while expanding your expertise in cloud security, compliance, container orchestration, and enterprise cloud administration within a cleared environment.

Why This Role Is Available Due to continued growth of AWS cloud infrastructure, expansion of Kubernetes and EKS environments, and ongoing cloud modernization efforts, we are seeking experienced cloud operations professionals to support evolving operational and security requirements.

Job Type & Location

This is a Contract position based out of San Antonio, TX.

Pay and Benefits

The pay range for this position is $67.96 - $67.96/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in San Antonio,TX.

Application Deadline

This position is anticipated to close on Aug 25, 2026.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.