Top 274 Linux Administrator Jobs

Senior System Administrator
Integrative systems india pvt ltd —Remote
- From $70,000 a year
- Full-time
- Data analysis skills
- Analysis skills
- Continuous improvement
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Senior Quality Assurance Linux Administrator | TS/SCI Poly Required ONSITE
Arrona Tech LLC —Hanover, MD
- $180,000 - $230,000 a year
- Full-time
- 3 years
- Analysis skills
- Bachelor's degree
- 401(k)
- Paid time off
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M365 System Administrator
DS Graphics, Inc. —Canton, MA
- $60,000 - $70,000 a year
- Full-time
- Background check
- Computer Science
- 5 years
- Health insurance
- Dental insurance
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NCIS VTC Administrator | Active TS/SCI clearance
General Dynamics Information Technology —Quantico, VA
- $40.35 - $54.59 an hour
- Windows
- Linux
- In-person
- Paid time off
- 401(k) matching
Staff RF Electronic Systems Engineer
Northrop Grumman —Aurora, CO
- $177,000 - $265,600 a year
- Overtime
- System design
- Master's degree
- 8 years
- Paid holidays
- Disability insurance
Windows System Administrator
DCI Solutions —Chantilly, VA
- $140,000 - $180,000 a year
- Full-time
- Microsoft Outlook
- System design
- Windows
- Health savings account
- Relocation assistance
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Principal/Sr. Principal RF Electronic Systems Engineer
Northrop Grumman —Aurora, CO
- $114,000 - $213,400 a year
- Overtime
- System design
- Master's degree
- Bachelor's degree
- Paid holidays
- Disability insurance
Senior Staff / Senior Network Engineer
SciTec —Boulder, CO
- $145,000 - $204,000 a year
- Azure
- 6 years
- Windows
- Profit sharing
- Paid parental leave
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14d
Embedded Linux Systems Engineer
Actalent —Minneapolis, MN
- $50 - $57 an hour
- Contract
- Hybrid work
- Continuous improvement
- Fair chance
- Linux
- Commuter assistance
- Health savings account
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2d
Application Support Engineer
Robert Half —Oklahoma City, OK
- Contract
- Mid-level
- Windows
- SQL
- Disability insurance
- Dental insurance
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13d
Dynatrace Administrator
Matlen Silver —Plano, TX
- $43 - $46 an hour
- Contract
- Hybrid work
- Computer science
- Azure
- Computer Science
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13d
SQL Database Administration (DBA)
Matlen Silver —Phoenix, AZ
- $60 - $65 an hour
- Contract
- Hybrid work
- SQL
- Linux
- In-person
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9d
Senior Data Systems Manager
Leidos —Omaha, NE
- $87,100 - $157,450 a year
- Full-time
- Windows
- Master's degree
- Bachelor's degree
System Administrator
MAGID GLOVE & SAFETY MANUFACTURING CO, LLC —Romeoville, IL
- $84,000 - $109,000 a year
- Computer Science
- 5 years
- Office
- Profit sharing
- Paid holidays
Quick Apply
Sr. Windows System Administrator
DCI Solutions —Chantilly, VA
- $180,000 - $220,000 a year
- Full-time
- Microsoft Outlook
- System design
- Windows
- Health savings account
- Relocation assistance
Quick Apply
Systems Engineer Consult – OMBP
Navy Federal Credit Union —San Antonio, TX
- $111,600 - $164,475 a year
- Online Application
- Computer science
- Computer Science
- Mid-level
6d
Network Engineer
Everforth —Quincy, FL
- $90,000 - $100,000 a year
- Full-time
- Computer Science
- 5 years
- Bachelor's degree
- Health insurance
- 401(k) matching
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Desktop Systems Engineer - TS/SCI with Polygraph
General Dynamics Information Technology —Annapolis Junction, MD
- $142,792 - $184,000 a year
- 6 years
- Office
- Bachelor's degree
- Paid time off
- 401(k) matching
5d
Database Administrator - TS/SCI with Polygraph
General Dynamics Information Technology —Bethesda, MD
- $164,382 - $218,500 a year
- Computer Science
- Office
- SQL
- Paid holidays
- 401(k) matching
5d
Systems Engineer
Robert Half —Topeka, KS
- $100,000 - $120,000 a year
- Email
- Mid-level
- Windows
- SQL
- Disability insurance
- Dental insurance
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8d

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Senior System Administrator

Integrative systems india pvt ltd -
Remote

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Job Details

Full-time
From $70,000 a year

Qualifications

System administration
Operating systems
Authorization controls implementation
IT user and group management
System performance optimization
Configuration management
Operating system updates
Software installation
Server updates
IT infrastructure
Data access controls implementation
Systems engineering
AS400
Operating system security
IT
Application Maintenance
Linux
Access control management
System tuning
Operating system installation

Full Job Description

Job Summary

We are seeking an experienced AS/400 (IBM i) Senior System Administrator to manage, configure, and optimize IBM Power Systems environments. The ideal candidate will have deep expertise in IBM i system setup, OS and system configuration, LPAR creation, and performance analysis and tuning. This role is responsible for ensuring high availability, optimal performance, security, and scalability across development, test, and production environments. The candidate will also demonstrate strong partnership and leadership with offshore resources to ensure optimal client success and seamless service delivery.

Key Responsibilities

System Administration & Configuration

Install, configure, and maintain IBM i (AS/400 / iSeries) operating systems and system software
Perform initial system setup, environment builds, and system lifecycle management
Configure system values, subsystems, job queues, memory pools, and storage
Apply PTFs, upgrades, and technology refreshes, ensuring minimal disruption
Maintain and document system configurations and operational procedures

LPAR & Power Systems Management

Design, create, and manage Logical Partitions (LPARs) on IBM Power Systems
Allocate and adjust CPU, memory, and storage resources based on workload demands
Perform LPAR sizing, tuning, migrations, and capacity planning
Use HMC (Hardware Management Console) for partition and hardware administration

Performance Analysis & Tuning

Proactively monitor and analyze system performance using IBM i performance tools
Identify CPU, memory, disk I/O, and job-level bottlenecks
Analyze workload performance across subsystems, job queues, and memory pools
Tune system values, workloads, memory pools, and disk utilization to optimize throughput
Review and analyze performance data to support capacity planning and growth forecasting
Partner with application teams to diagnose and resolve performance-related issues
Establish performance baselines and provide recommendations for continuous improvement

Security & Access Control

Manage user profiles, group profiles, authorities, and object-level security
Implement security policies, auditing, and compliance controls
Regularly review access rights and security configurations

Backup, Recovery & High Availability

Configure and manage backup and recovery strategies
Support disaster recovery planning, testing, and execution
Work with high availability and replication solutions (e.g., PowerHA, MIMIX, or similar)

Monitoring & Operational Support

Monitor system health, alerts, and resource utilization
Provide advanced troubleshooting and third-level support for IBM i environments
Participate in on-call rotations as required

Collaboration & Documentation

Collaborate with application, infrastructure, and business teams
Provide guidance and best practices for IBM i usage and performance
Maintain accurate documentation for system configurations, performance baselines, and procedures

Required Qualifications

10+ years of experience administering IBM i (AS/400 / iSeries) environments
Strong hands-on experience in:
IBM i OS installation, setup, and configuration
Performance analysis and tuning (CPU, memory, disk, and workload management)
LPAR creation and management on IBM Power Systems
Experience with HMC and PowerVM
Solid understanding of IBM i security and object authority
Experience managing PTFs, upgrades, and system maintenance
Strong analytical and troubleshooting skills

Preferred Qualifications

Experience with IBM i performance tools (e.g., performance reports, monitoring utilities, or third-party tools)
Exposure to PowerHA, MIMIX, or other HA/DR solutions
Basic scripting skills (CL; RPG a plus)
IBM certifications such as IBM Certified Administrator – IBM i
Experience supporting mission-critical or regulated environments

Soft Skills & Competencies

Strong analytical mindset with attention to performance detail
Ability to translate performance data into actionable recommendations
Excellent documentation and communication skills
Self-motivated with the ability to manage priorities independently
Strong collaboration and leadership skills when working with offshore resources across time zones
Proactive approach to mentoring and guiding offshore team members to support consistent performance and quality outcomes
Strong client focus with the ability to align offshore delivery efforts to business needs and ensure optimal client success

Pay: From $70,000.00 per year

Work Location: Remote

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Refine Your Search

Linux Administrator jobs

Senior System Administrator

Senior Quality Assurance Linux Administrator | TS/SCI Poly Required ONSITE

M365 System Administrator

NCIS VTC Administrator | Active TS/SCI clearance

Staff RF Electronic Systems Engineer

Windows System Administrator

Principal/Sr. Principal RF Electronic Systems Engineer

Senior Staff / Senior Network Engineer

Embedded Linux Systems Engineer

Application Support Engineer

Dynatrace Administrator

SQL Database Administration (DBA)

Senior Data Systems Manager

System Administrator

Sr. Windows System Administrator

Systems Engineer Consult – OMBP

Network Engineer

Desktop Systems Engineer - TS/SCI with Polygraph

Database Administrator - TS/SCI with Polygraph

Systems Engineer

I want to receive the latest job alert for Linux Administrator

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