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Freelance Remote Mainframe Developer Jobs (NOW HIRING)

My3Tech Inc

Mainframe Developer

$50.25 - $64.50/hr

Mainframe Developer Location: Remote working PST hours- San Jose, CA Long term contract Interview Process: 2 rounds; 1 hour each Skills Required: TOP 3 MUST HAVES * ATTLS * NETWORKING SECRUTIY

Georgia IT Inc

Mainframe Developer-Miami, FL (Remote)

$50.25 - $64.50/hr

Mainframe Developer Location: Miami, FL (Remote) Duration: 06 Months plus Rate: DOE US Citizens, Green cards & EAd Are preferred. No Third-party C2C Must-have skills: IDMS, COBOL and Batch Coding ...

Samprasoft

Mainframe/DevOps

$54 - $74/hr

Job Title 100% REMOTE Need Mainframe, DevOps, CA Endevor, and Eclipse exp They are moving from Endevor to the cloud... The area is Mainframe AND distributed DevOps work. Source control and system ...

532 Group LLC

Mainframe (COBOL, IDz) Developer

$86K/yr

We have an opening for an experienced Mainframe Developer (key skills: COBOL, JCL, VSAM, IDz, and ... This position is Remote; however, you must live in the United States (no exceptions) and you must ...

New

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · Remote

$52.50 - $67.50/hr

* Tier One Technologies has an immediate need for a z/OS Mainframe Developer to support our US Government client. * This is going to be a 100% remote position. * SELECTED CANDIDATES WITHOUT REQUIRED ...

A.C. Coy

z/OS Mainframe Developer (Remote)

Alexandria, VA · Remote

$52.50 - $67.50/hr

Tier One Technologies has an immediate need for a z/OS Mainframe Developer to support our US Government client. * This is going to be a 100% remote position. * SELECTED CANDIDATES WITHOUT REQUIRED ...

System One

Senior Mainframe Developer (COBOL)

Reston, VA · Remote

$83/hr

Primarily Remote Onsite Expectations: Monthly travel to Reston, VA for PI Planning Compensation: $83/HR Employment Type: W2 only About the Role We're looking for a Senior Mainframe COBOL Developer to ...

Perfict Global, Inc.

Mainframe COBOL Developer

$50.25 - $64.50/hr

Mainframe COBOL Developer Location : 100% Remote in PST Time Zone ( Only Same Time Zone Candidate Workable ) NOTE : This is Part Time Requirement - 4hrs/day Client : State of Oregon Department of ...

New

MM International

Adabas mainframe

Atlanta, GA · Remote

$50.25 - $64.50/hr

Adabas mainframe Looking for a ADABAS DBA/ Developer/ ADABAS production support/ Mainframe Developer/ Mainframe Programmer background Location: 100% REMOTE | WEEKEND WORK Responsibilities include:

System One

Senior Mainframe Engineer

Merrifield, VA · Remote

Senior Mainframe Engineer Location: remote Pay rate: open to W2 and established 1099s Position type: multiyear contract We are currently seeking a Senior Mainframe Programmer/Support Analyst with a ...

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Freelance Remote Mainframe Developer information

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$10

$53

$72

How much do freelance remote mainframe developer jobs pay per hour?

As of Jun 24, 2026, the average hourly pay for freelance remote mainframe developer in the United States is $53.38, according to ZipRecruiter salary data. Most workers in this role earn between $47.12 and $60.58 per hour, depending on experience, location, and employer.

What is the difference between Freelance Remote Mainframe Developer vs Freelance Remote COBOL Programmer?

AspectFreelance Remote Mainframe DeveloperFreelance Remote COBOL Programmer
CredentialsMainframe certifications, programming skillsCOBOL certifications, programming skills
Work EnvironmentMainframe systems, remote setupLegacy systems, remote setup
Industry UsageBanking, finance, insuranceBanking, government, insurance
Search IntentJobs involving mainframe developmentJobs focusing on COBOL programming

Both roles involve working with legacy mainframe systems remotely, often requiring similar certifications and industry experience. The main difference is that a Freelance Remote Mainframe Developer may handle broader development tasks, while a Freelance Remote COBOL Programmer specializes specifically in COBOL coding within mainframe environments.

What are the key skills and qualifications needed to thrive as a Freelance Remote Mainframe Developer, and why are they important?

A Freelance Remote Mainframe Developer typically needs expertise in mainframe programming languages (such as COBOL, JCL, and PL/I), database management, and systems analysis, often supported by a degree in computer science or related experience. Familiarity with mainframe environments like IBM z/OS, version control systems, and remote collaboration tools is common, along with relevant certifications such as IBM Certified System Programmer. Strong problem-solving skills, self-motivation, and effective communication are crucial soft skills for managing independent projects and client interactions remotely. These qualifications enable developers to deliver reliable, efficient solutions while meeting client expectations and maintaining legacy systems from a remote setting.

What is a Freelance Remote Mainframe Developer?

A Freelance Remote Mainframe Developer is a technology professional who specializes in developing, maintaining, and troubleshooting software applications on mainframe computer systems. Working on a freelance basis, they are not tied to a single employer and typically work with multiple clients, often from a remote location. Their responsibilities include coding, debugging, and upgrading legacy mainframe applications, ensuring system security and performance, and integrating mainframe systems with modern technologies. This role requires expertise in mainframe languages such as COBOL, JCL, and experience with databases like DB2. Remote work adds flexibility, allowing developers to collaborate with clients globally using digital communication tools.

How do Freelance Remote Mainframe Developers typically collaborate with on-site teams and stakeholders?

Freelance Remote Mainframe Developers usually work closely with on-site teams via digital communication tools such as video conferencing, project management platforms, and version control systems. Regular virtual meetings and clear documentation help ensure alignment on project requirements and timelines. It is common to coordinate with business analysts, QA testers, and other developers across different time zones, so strong communication skills and proactive status updates are essential for successful collaboration.
More about Freelance Remote Mainframe Developer jobs
What cities are hiring for Freelance Remote Mainframe Developer jobs? Cities with the most Freelance Remote Mainframe Developer job openings:
What are the most commonly searched types of Remote Mainframe Developer jobs? The most popular types of Remote Mainframe Developer jobs are:
What states have the most Freelance Remote Mainframe Developer jobs? States with the most job openings for Freelance Remote Mainframe Developer jobs include:
What job categories do people searching Freelance Remote Mainframe Developer jobs look for? The top searched job categories for Freelance Remote Mainframe Developer jobs are:
Freelance Remote Mainframe Developer jobs near you
Infographic showing various Freelance Remote Mainframe Developer job openings in the United States as of June 2026, with employment types broken down into 3% Locum Tenens, 2% As Needed, 4% Full Time, 86% Part Time, 3% Temporary, and 2% Contract. Highlights an 83% Physical, 7% Hybrid, and 10% Remote job distribution, with an average salary of $111,026 per year, or $53.4 per hour.
Mainframe Developer

Mainframe Developer

My3Tech Inc

Remote

$50.25 - $64.50/hr

Other

Posted 3 days ago

Job description

Mainframe Developer

Location: Remote working PST hours- San Jose, CA

Long term contract

Interview Process: 2 rounds; 1 hour each

Skills Required: TOP 3 MUST HAVES

  • ATTLS
  • NETWORKING SECRUTIY
  • DIASTER RECOVERY
  • Good knowledge of routing, adding and redundancy

Job Description:

Position Summary:

The Senior Software Engineer – Communications is the principal IBM and 3rd party software product architect and an expert technical resource for those software systems. This position incorporates some functions and responsibilities of a Software Architect and Software Specialist. Under general direction, the Senior Software Engineer will evaluate, design, implement, and maintain IBM software, third party software, management systems, computer applications, operating systems and direct software services.

Duties/Responsibilities:

  • Primary responsibility for maintaining the VTAM & TCPIP subsystems in a z/OS 2.4 and JES2 software environment.
  • Install and/or participate with software management and installation. This would include installation and maintenance utilizing the IBM SMP/E product. It also includes migration with testing and integration.
  • Implement and verifies backup and recovery procedures. This would include Business Recovery concerns and associated testing.
  • Reviews new features and other changes related to system software and advises Technical/Development/Operations groups of issues relevant to reporting, programming, and performance, identifying the need for software upgrades and patches, as appropriate.
  • Creates, maintains, and upgrades software systems for development and production environments.
  • Monitors system software access, performance, and resource utilization.
  • Provides technical leadership to developers on software management systems, development and integration tools, and deployment strategies, including application tuning and guidance in effective software features.
  • Act as a liaison between application programmers and vendors to report and resolve software problems.
  • Work with application programmers to ensure that application problems do not adversely affect production operations.
  • Assists with the analysis, design, programming, and implementation of applications that will interface with system software.
  • Analyzes requirements and recommends policies, procedures, and standards for software systems.
  • Develops and modifies technical documentation to support operations and training.
  • Performs other duties as assigned including special projects.
  • Develop/maintain/monitor proper software use and security authorization policies.
  • Ability to provide 24/7/365 software support. This would include on-call support during off-hours.
  • Serves as the Mainframe Team Lead regarding contract review and execution.
  • Serves as the Disaster Recovery focal point concerning all aspects of the IBM DR process.

Minimum Qualifications:

  • 20+ years of experience with mainframe software management specific to VTAM & TCPIP sub-system and associated software products.
  • Experience supporting/leading/training of software management use with little or no direction. This would include all aspects such as logical/physical design, defining, implementing, monitoring, reporting and utilities.
  • Actively mentor and guide staff in development of mainframe implementation, testing, and maintaining of VTAM & TCPIP software and related system software skills.
  • Monitor VTAM & TCPIP and its components to make recommendations to better utilize resources for optimal performance and cost-effectiveness.
  • Ability to install and customize IBM and third party software using SMP/E & IEBCOPY
  • Ability to perform multiple activities simultaneously with minimal supervision.
  • Possible travel and variable hours may be required.
  • Ability to write/read/debug programs in a batch and online environment.
  • Ability to write software exit program(s) and use software utilities as required.
  • Solid knowledge of mainframe JCL and utilities.
  • Expert knowledge with Disaster Recovery Best Practices
  • Expert knowledge of OSA Adapters, IP, VTAM & SSL/TLS Traces.
  • Expert knowledge of FTPS, SFTP, AT/TLS, VVP, JQP, MFT & EntireX.
  • Expert knowledge of CL Super Session, TN3270 & Enterprise Extender.
  • Experience using TSO, ISPF, SDSF, IPTRACE & NTSTAT
  • Experience using RACF commands for managing digital certificates & keyrings
  • Experience with IP Routing, IP subnet structures, VIPA and hyper-sockets
  • Experience with DR DASD/VTS mirroring & associated networking requirements
  • Experience writing in Assembler, REXX and CLISTs.
  • Experience and understanding of z/OS UNIX environment.
  • Strong analytical skills.
  • Excellent oral and written communication skills.
  • Excellent problem-solving skills.
  • Ability to think strategically and act tactically.
  • Ability to work in a team environment, share ideas and take direction.

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