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Freelance Mainframe Network Engineer Jobs (NOW HIRING)

Scalence L.L.C.

Mainframe Network Engineer

Phoenix, AZ · On-site

$48.75 - $62.50/hr

L.C. is seeking a Mainframe Network Engineer to support IBM z/OS networking environments, ensuring stable and secure connectivity across enterprise mainframe systems. The role involves ...

HRB

MAINFRAME NETWORK SYSTEMS PROGRAMMER

Hoboken, NJ · On-site

$120 - $180/hr

MAINFRAME NETWORK SYSTEMS ENGINEER (MID TO SENIOR LEAD LEVEL) MAINFRAME**TCP-IP**VTAM**Z/OS HYBRID~MUST WORK ON SITE AT LEAST 2 DAYS A WEEK AND LIVE NEAR LOCATION BONUS OPPORTUNITY!! * 10+ YEARS ...

New

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 ...

DSNSearch

MAINFRAME NETWORK SYSTEMS PROGRAMMER

Pittsburgh, PA · On-site

$53.50 - $68/hr

MAINFRAME NETWORK SYSTEMS ENGINEER (MID TO SENIOR LEAD LEVEL) MAINFRAME**TCP-IP**VTAM**Z/OS HYBRID~MUST WORK ON SITE AT LEAST 2 DAYS A WEEK AND LIVE NEAR LOCATION BONUS OPPORTUNITY!! * 10+ YEARS ...

DSNSearch

MAINFRAME NETWORK SYSTEMS PROGRAMMER

Hoboken, NJ · On-site

$60.25 - $76.50/hr

MAINFRAME NETWORK SYSTEMS ENGINEER (MID TO SENIOR LEAD LEVEL) MAINFRAME**TCP-IP**VTAM**Z/OS HYBRID~MUST WORK ON SITE AT LEAST 2 DAYS A WEEK AND LIVE NEAR LOCATION BONUS OPPORTUNITY!! * 10+ YEARS ...

DSNSearch

MAINFRAME NETWORK SYSTEMS PROGRAMMER

Orlando, FL

$51.25 - $65.25/hr

MAINFRAME NETWORK SYSTEMS ENGINEER (MID TO SENIOR LEAD LEVEL) MAINFRAME**TCP-IP**VTAM**Z/OS HYBRID~MUST WORK ON SITE AT LEAST 2 DAYS A WEEK AND LIVE NEAR LOCATION BONUS OPPORTUNITY!! * 10+ YEARS ...

HRB

MAINFRAME NETWORK SYSTEMS PROGRAMMER

Orlando, FL · On-site

$110 - $190/hr

MAINFRAME NETWORK SYSTEMS ENGINEER (MID TO SENIOR LEAD LEVEL) MAINFRAME**TCP-IP**VTAM**Z/OS HYBRID~MUST WORK ON SITE AT LEAST 2 DAYS A WEEK AND LIVE NEAR LOCATION BONUS OPPORTUNITY!! * 10+ YEARS ...

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

As of Aug 19, 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?

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Freelance Mainframe Network Engineer jobs near you
Infographic showing various Freelance Mainframe Network Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 11% Part Time, and 7% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution, with an average salary of $109,040 per year, or $52.4 per hour.

Mainframe Network Engineer | Remote

Noblesoft Technologies

Frisco, TX • Remote

Contractor

Re-posted 12 days ago

Job description

Role :- Mainframe Network Engineer

Location :- Salisbury, NC/Boston, MA/Frisco, TX(Remote is also Fine)

Duration : Contract


Job description of Mainframe Network Engineer:

  • Architect, deploy, and manage mainframe network environments using VTAM, SNA, TCP/IP, DVIPA/DDVIPA, Sysplex Distributor, and HiperSockets.
  •  Continuously monitor network performance, latency, throughput, and traffic using tools like OMEGAMON, RMF, IBM NetView, Wireshark, and SolarWinds.
  • Diagnose and resolve performance bottlenecks and protocol mismatches.
  • Implement and enforce security protocols including RACF, IP filtering, AT-TLS encryption, IPSEC, intrusion detection, firewall and VPN configurations.
  • Participate in periodic security audits and maintain compliance with governance standards.
  • Troubleshoot connectivity issues, trace packet-level failures, and resolve VTAM, TCP/IP, hardware, and encryption errors.
  • Provide 24/7 on-call support and disaster recovery operations, including system backups and failover strategies.
  • Maintain detailed documentation: network diagrams, SOPs, change logs, incident reports.
  •  Liaise with system programmers, DBAs, application teams, vendors, and third-party service providers for integration, upgrades, and troubleshooting.

 Experience Required

  • 10–15+ years of hands-on mainframe network engineering experience.
  • Proven background working with z/OS mainframe environments, Parallel Sysplex, VTAM, TCP/IP, and SNA.

Technical Expertise

  • In-depth understanding of network protocols: TCP/IP, SNA, VTAM, DVIPA/DDVIPA, HiperSockets, Sysplex Distributor.
  • Proficiency with monitoring/troubleshooting tools (OMEGAMON, RMF, IBM NetView, Wireshark). 
  • Security know-how: RACF, IP filtering, AT-TLS, VPN, IPSEC, IDS/IDS. 
  • Experience developing and implementing high-availability and disaster recovery strategies on mainframe networks.
  • Familiarity with scripting (REXX, CLISTs) and automation for routine tasks and network toolkits.

Certifications (Preferred)

  • IBM certifications such as z/OS Administrator or IBM Certified System Administrator. 
  • Networking/security credentials: CCNP, CISSP, or equivalent.

Added Advantage  -

  • Familiarity with hybrid cloud/mainframe integration architectures. 
  • Experience with file transfers: Connect-Direct, FTP(S), sFTP, TPX, Supersession.