Linux Infrastructure Engineer

TEKsystems; Irving (TX); On-site; USD 83,000 - 103,000; Full time

Benefits offered by this job

Medical, dental & vision

401(k) Retirement Plan

Life Insurance

Job summary

TEKsystems in Irving, TX is seeking a Sr. Telecomm Systems Administrator to support deployment and go-live of EC System infrastructure. This on-site role is part of a 24x7 Operations team, focusing on incident response, Linux/network operations, and automation to scale North American deployments.

The role emphasizes hands-on troubleshooting, design, documentation, and a DevOps mindset. Eligible for contract-to-hire with potential for travel as needed.

Qualifications

• Bachelor’s degree or relevant experience in IT/telecommunications.
• Juniper JNCIP and RHCE certifications preferred but not mandatory.
• Experience with Linux, network troubleshooting, high availability, Pacemaker/Corosync, Galera, and cloud integrations.

Responsibilities

• Act as first technical point of response during production incidents, owning investigation and restoration.
• Hands-on troubleshooting across Linux, IP networks, firewalls, clustering, and databases.
• Diagnose complex Linux/network problems using command-line tools and packet captures (tcpdump, Wireshark).
• Troubleshoot routing, switching, VPN, TCP/UDP, latency, and connectivity issues.
• Coordinate with engineering teams and third parties while maintaining incident ownership.
• Design, deploy, and maintain Linux, network, clustering, and cloud infrastructure.

Skills

Router

Switches

Juniper

Red Hat

Linux

Telecommunications systems

3GPP

Network engineering

System administrator

Education

Bachelor's degree in IT/CS/telecommunications

Tools

Pacemaker/Corosync

Galera

tcpdump

Wireshark

Linux

Red Hat

Job description

Description

Etherstack is an innovative, established global company with a start-up culture that provides a range of wireless communications solutions and specialize in mission critical infrastructure. They have a large presence internationally, and are continuing to expand and grow their North American presence. The North American group has consistently grown through various large carrier contracts (Example: AT&T FirstNet) and they are quickly approaching the deployment of new hardware/software and applications which is driving the need to add to the team.

Etherstack is currently looking to expand the team at their Dallas location to add a Sr. Telecomm Systems Administrator to support the deployment/"Go-Live" of their hardware/applications (Interworking function) at an increased scale. The Systems/Network Admin will be a core member of their 24/7/365 Operations team to provide Tier 3 layer support for networking and IT administration for ECS (Emergency Communication Service). The network admins day- to- day can vary, but duties are not limited to the following: 1- serve as a point of escalation, 2. Diagnose, Troubleshoot, or elevate tickets, 3. Proactively monitor systems, 4. Assess performance and perform upgrades, 5. Maintain and create SOP's for responses and troubleshooting, maintain/administer accounts, test/deploy software, etc.. The day to day and variation of duties will be heavier on responsiveness to the Go-Live in the start. Depending on volume, various duties can be peeled off (again, start up environment where they have the autonomy to scale if needed)

You will design (More optimization as the design is already completed), implement, and maintain network operations across Etherstack's global offices and cloud deployments, with a strong DevOps mindset automating workflows, managing infrastructure as code, and building repeatable, resilient processes. You will be responsible for maintaining comprehensive documentation of IT policies, procedures, hardware, and software.

While this position is somewhat broad, the number one is incident commander.

Key Responsibility Areas

• Act as a first technical point of response and primary customer technical contact during production incidents, owning the investigation from initial detection through service restoration and follow-up.
• Perform hands‑on troubleshooting across the complete service environment, including Linux systems, IP networks, firewalls, Pacemaker/Corosync clusters, Galera database clusters, virtualization, applications, and customer connectivity.
• Diagnose complex Linux and network problems using command-line tools, logs, monitoring data, routing information, and packet captures using tools such as tcpdump and Wireshark.
• Troubleshoot routing, switching, firewall, VPN, TCP/UDP, performance, and connectivity problems, including packet loss, latency, asymmetric routing, and other service‑impacting network conditions.
• Troubleshoot highly available Linux and database environments, including Pacemaker/Corosync and Galera, with issues involving quorum, failover, cluster communication, replication, synchronization, and recovery.
• Coordinate internal engineering teams, customers, network/data‑center providers, and other third parties when additional assistance is required while maintaining technical ownership of the incident.
• Design, deploy, maintain, patch, harden, monitor, and improve Etherstack's Linux, network, clustering, and cloud infrastructure.
• Perform root‑cause analysis, execute controlled production changes, maintain technical documentation, and develop Bash/Python automation to improve operations and troubleshooting.

Required Qualifications

• Bachelor's degree in a field related to IT, computer science, or telecommunications. (Relevant years of experience will suffice as well)
• Juniper Engineer level certification in both Routing and Switching (JNCIP) and Network Security (JNCIP-SEC). (Again this is desired, but not mandatory as they can have the experience with other manufacturers).
• Red Hat Certified Engineer (RHCE), and Red Hat Certified Specialist in Security certifications. (Cert is desired, but not mandatory)

Skills

Router, Switches, juniper, redhat, linux red hat, telecommunications systems, 3GPP, Network engineering, system administrator, red hat, linux, Troubleshooting, Wireless, systems engineering, python, automation, cloud

Top Skills Details

Router,Switches,juniper,redhat,linux red hat,telecommunications systems,3GPP,Network engineering,system administrator,red hat,linux

Additional Skills & Qualifications

This is a on-site position that can eventually move to a hybrid schedule. Resource should expect to be on-site for the first 6 months or so, but then move to a hybrid schedule once up to speed of 3 days in office and 2 days remote. While this is a 24X7 NOC, this resource will be supporting the North American "day shift" as their partner across the globe will pick up the other shifts.

Highly Regarded

• Cloud Certifications, Cyber Certs

There is an on‑call rotation but we are working on the logistics for that. Once perm there is opportunity to travel international but not mandatory.

Linux:

Strong hands‑on experience administering and troubleshooting production Linux environments, preferably Red Hat Enterprise Linux (RHEL). Candidates should be comfortable diagnosing services, processes, CPU/memory, storage and filesystems, networking, security, performance, and application‑connectivity issues from the command line.

Networking:

Strong knowledge of TCP/IP, routing, and switching, with hands‑on experience troubleshooting VLANs, routing protocols such as OSPF and BGP, firewalls, NAT, VPNs, TCP/UDP connectivity, packet loss, latency, and routing problems. Experience with Juniper and/or Cisco infrastructure is preferred.

High Availability:

Hands‑on experience supporting and troubleshooting highly available or clustered production systems, including concepts such as quorum, failover, node communication, fencing, replication, synchronization, and recovery. Experience with Pacemaker/Corosync and Galera Cluster is strongly preferred.

Troubleshooting:

Demonstrated ability to investigate complex problems across multiple technology layers using Linux diagnostic tools, logs, monitoring systems, routing information, and packet captures with tcpdump and/or Wireshark. Candidates should be able to methodically isolate whether a problem originates in the operating system, network, database, cluster, application, or an external dependency.

Production Operations:

Experience

Experience Level

Expert Level

Job Type & Location

This is a Contract to Hire position based out of Irving, TX.

Pay And Benefits

• The pay range for this position is $60.00 - $75.00/hr. Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. 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)

Application Deadline

This position is anticipated to close on Nov 5, 2026.

Workplace Type

This is a fully onsite position in Irving,TX.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full‑Stack Technology Services, Talent Services, and real‑world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

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.

About TEKsystems And TEKsystems Global Services

Were a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Were a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full‑stack capabilities and speed. Were strategic thinkers, hands‑on collaborators, helping customers capitalize on change and master the momentum of technology. Were building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard 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.