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Freelance Mainframe Network Engineer Jobs (NOW HIRING)

Prophecy Technologies

Mainframe Network Engineer (L3)

$50.25 - $64.50/hr

Role Name: Mainframe Network Engineer (L3) Location: Remote, USA Experience: L3 level support required Roles & Responsibilities * Configure and administer IBM z/OS mainframe network software.

Apex Systems

Mainframe Network Engineer

Chandler, AZ · Hybrid

$65 - $70.24/hr

Job#: 3035723 Mainframe Network Engineer Location: Chandler, Arizona (Hybrid) Employment Type: 12 Months Contract Role Overview This position involves engineering and operating network solutions that ...

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TriOptus LLC

Mainframe Network System Engineer

Tampa, FL · On-site

$52 - $66.25/hr

Mainframe Network System Engineer Location : Tampa, Florida Job Type: Contract Duration: 3 Years * This position is for Mainframe Networking ( VTAM, TCPIP etc.) - the position will be remote, onsite ...

TriOptus LLC

Mainframe Networking Engineer - Remote

Tampa, FL · On-site +1

$46.25 - $59.50/hr

Mainframe Network system programmer; configure, implement, maintain, support host network definitions (VTAM, TCPIP etc.) for IBM/Kyndryl and IBM customer mainframe systems. * Provide Tier3 host ...

Palnar

Mainframe, Network Systems Programmer

$56.25 - $71.75/hr

Mainframe Network Engineering will be supporting a firmwide initiative to enable encryption for all data in transit. * Our focus will be on assessing all connections to and from the mainframe ...

Citigroup, Inc.

Senior Network Engineer - VP

Irving, TX · On-site

$125.76K - $188.64K/yr

Engineer/implement and support the Mainframe network software and hardware for zOS / zVM platforms. * Configuration and administration of IBM z/OS mainframe network communications software (VTAM ...

TriOptus LLC

z/OS- Infrastructure Engineer

Plano, TX · On-site

$50 - $70/hr

Mainframe Network Product installations, customizations and evaluations. * Definition, Maintenance and Modification of existing z/Series Network Products * Manage & Support Transmission Products ...

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How much do freelance mainframe network engineer jobs pay per year?

As of May 29, 2026, the average yearly pay for freelance mainframe network engineer in the United States is $109,040.00, according to ZipRecruiter salary data. Most workers in this role earn between $89,000.00 and $133,500.00 per year, depending on experience, location, and employer.
What cities are hiring for Freelance Mainframe Network Engineer jobs? Cities with the most Freelance Mainframe Network Engineer job openings:
What are the most commonly searched types of Mainframe Network Engineer jobs? The most popular types of Mainframe Network Engineer jobs are:
What states have the most Freelance Mainframe Network Engineer jobs? States with the most job openings for Freelance Mainframe Network Engineer jobs include:
Freelance Mainframe Network Engineer jobs near you
Infographic showing various Freelance Mainframe Network Engineer job openings in the United States as of May 2026, with employment types broken down into 1% As Needed, 90% Full Time, 3% Part Time, and 6% Contract. Highlights an 88% Physical, and 12% Remote job distribution, with an average salary of $109,040 per year, or $52.4 per hour.
Mainframe Network Engineer

Mainframe Network Engineer

Computer Task Group, Inc

Phoenix, AZ • Hybrid

Full-time

Posted yesterday

Job description

Overview

CTG is seeking a Mainframe Network Engineer for our client.

Location: Phoenix, AZ metro area (Hybrid)
Duration: 6 months with option to convert after 6 months
Citizenship: US Citizens (USC), Permanent Residents (PR), and other EAD holders only (no visa-dependent candidates)

Overview

Responsible for designing, supporting, and optimizing enterprise mainframe network infrastructure. This role ensures secure, reliable, and high-performance connectivity between IBM mainframes (z/OS), distributed systems, cloud environments, and external partners in support of critical business operations.

Key Responsibilities
  • Design, configure, and support mainframe network environments and connectivity solutions
  • Manage IBM mainframe communications including VTAM, TCP/IP, SNA, TN3270, and FTP
  • Troubleshoot complex connectivity issues and perform root cause analysis
  • Support z/OS network services and communication subsystems
  • Ensure secure connectivity including firewall, encryption, and access controls
  • Collaborate with infrastructure, security, and application teams across enterprise initiatives
  • Support disaster recovery, high availability, and business continuity planning
  • Perform performance tuning and capacity planning for mainframe communications
  • Maintain technical documentation, standards, and operational procedures
  • Participate in incident response and change management processes
  • Support integration between mainframe, distributed, and cloud environments
Required Skills & Experience
  • 5+ years of experience in mainframe networking or enterprise infrastructure support
  • Strong expertise in IBM mainframe communications (VTAM, TCP/IP, SNA, TN3270, FTP)
  • Experience with z/OS networking and subsystem configuration
  • Strong troubleshooting, performance tuning, and RCA skills
  • Knowledge of enterprise network security principles
  • Experience supporting hybrid mainframe and distributed/cloud environments
  • Strong documentation and communication skills
Education
  • Bachelor’s degree in Computer Science, Information Technology, Engineering, or related field preferred (or equivalent experience)

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee-based recruitment services for this role.

To Apply: Please apply directly via the provided requisition link. Kindly forward to any interested parties.

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About Computer Task Group

Sourced by ZipRecruiter

We know that achieving our mission begins and ends with our people—and by people we mean you. Regardless of individual roles or responsibilities, regardless of industry or subject matter expertise, our lives happen in relation to other people—our colleagues, clients, and partners. CTG cultivates a workplace that attracts and develops the best people. Being Great Place to Work-CertifiedTM not only supports our Vision but also validates the rewarding workplace culture that has made CTG a leading IT and digital solutions and services company for more than 55 years.

Company size

1,001 - 5,000 Employees

Headquarters location

Buffalo, NY, US

Year founded

1966

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