ZipRecruiter

Log In

2

Remote Mainframe Developer Jobs in Saint Louis, MO

S2Tech

Mainframe Developer (Remote)

Chesterfield, MO · Remote

$48.50 - $62.25/hr

Mainframe Developer Location: Remote About Us : Known for "Delighting the Client" through performance, innovation, and an employee-centric culture, S2Tech is a fast-growing IT consulting company ...

S2Tech

Mainframe Developer (Remote)

Chesterfield, MO · On-site +1

$48.50 - $62.25/hr

Mainframe Developer Location: Remote About Us : Known for "Delighting the Client" through performance, innovation, and an employee-centric culture, S2Tech is a fast-growing IT consulting company ...

BAI

Software Engineer

Saint Louis, MO · On-site +1

$75K - $95K/yr

Background in DevOps practices and CI/CD pipeline implementation. * Experience in Agile/Scrum ... off, hybrid and remote working models, tuition assistance and the ability to work in a ...

BAI

Advanced Software Engineer

Saint Louis, MO · On-site +1

$85K - $115K/yr

Background in DevOps practices and CI/CD pipeline implementation. * Experience in Agile/Scrum ... off, hybrid and remote working models, tuition assistance and the ability to work in a ...

GardaWorld

Software Engineer

Saint Louis, MO · On-site +1

$100K/yr

Software Engineer (Azure Cloud, Data Engineering & Automation) | Hybrid - St. Louis, MO We are ... Working environment: comfortable in a CLI-driven workflow (shell, remote access and debugging) on ...

GardaWorld

Software Engineer

Saint Louis, MO · On-site +1

$100K/yr

Software Engineer (Azure Cloud, Data Engineering & Automation) | Hybrid - St. Louis, MO We are ... driven workflow (shell, remote access and debugging) on macOS or Linux. Preferred Skills ...

GardaWorld

Software Engineer

Saint Louis, MO · On-site +1

$100K/yr

Software Engineer (Azure Cloud, Data Engineering & Automation) | Hybrid - St. Louis, MO We are ... Working environment: comfortable in a CLI-driven workflow (shell, remote access and debugging) on ...

GardaWorld

Software Engineer

Saint Louis, MO · On-site +1

$100K/yr

Software Engineer (Azure Cloud, Data Engineering & Automation) | Hybrid - St. Louis, MO We are ... Working environment: comfortable in a CLI-driven workflow (shell, remote access and debugging) on ...

next page

Showing results 1-20

All JobsMainframe Developer JobsRemote Mainframe Developer JobsRemote Mainframe Developer Jobs in Saint Louis, MO

Remote Mainframe Developer information

See Saint Louis, MO salary details

$9

$51

$70

How much do remote mainframe developer jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for remote mainframe developer in Saint Louis, MO is $51.90, according to ZipRecruiter salary data. Most workers in this role earn between $45.82 and $58.89 per hour, depending on experience, location, and employer.

What does a remote mainframe developer do?

As a remote mainframe developer, you work from home to design, code, test, and configure software and applications used on a mainframe system. Mainframes are large computers with particularly high processing power and are often used for critical tasks like bulk data processing or enterprise resource planning. In this role, you may help ensure all new software is fully backward-compatible, monitor system performance, isolate errors, and work collaboratively with other developers as needed. Most mainframe developers work for larger companies. As a remote employee, you use virtual office software, phone, chat, or email to remain connected to other employees.

What are the key skills and qualifications needed to thrive as a remote mainframe developer, and why are they important?

To thrive as a Remote Mainframe Developer, you need strong programming skills in languages like COBOL, JCL, and experience with mainframe operating systems, often supported by a degree in computer science or related field. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is typically required, along with relevant certifications. Excellent problem-solving abilities, independent work ethic, and effective virtual communication are standout soft skills for this remote role. These skills ensure smooth maintenance, modernization, and support of critical legacy systems in distributed teams.

Is mainframe in demand?

Mainframe developers are still in demand due to the continued reliance of large enterprises on mainframe systems for critical operations. Skills in COBOL, JCL, and mainframe security are valuable, and many organizations seek professionals to maintain and modernize legacy systems.

How does a remote mainframe developer typically collaborate with on-site teams and manage communication challenges?

As a Remote Mainframe Developer, you'll often work closely with on-site IT teams, business analysts, and project managers through virtual meetings, chat platforms, and shared documentation tools. Effective communication is key, so regular check-ins and proactive status updates help ensure alignment on project goals and troubleshooting efforts. Many companies use agile methodologies, which means you'll likely participate in daily stand-ups and sprint planning sessions remotely. While time zone differences can be a challenge, flexible scheduling and clear communication protocols are common strategies to keep everyone connected and productive.

What is a remote mainframe developer?

A Remote Mainframe Developer is a software professional who specializes in designing, developing, maintaining, and troubleshooting applications that run on mainframe computers, while working from a remote location. Mainframes are powerful computers often used by large organizations for critical applications, such as transaction processing and bulk data handling. Remote Mainframe Developers use programming languages like COBOL, JCL, and Assembler, and often connect to mainframe systems via secure networks. Their work ensures that legacy systems remain efficient, secure, and up-to-date. This role typically requires strong technical skills, experience with mainframe environments, and effective communication for collaborating with on-site teams.
More about Remote Mainframe Developer jobs
What are popular job titles related to Remote Mainframe Developer jobs in Saint Louis, MO? For Remote Mainframe Developer jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Remote Mainframe Developer jobs in Saint Louis, MO look for? The top searched job categories for Remote Mainframe Developer jobs in Saint Louis, MO are:
What cities near Saint Louis, MO are hiring for Remote Mainframe Developer jobs? Cities near Saint Louis, MO with the most Remote Mainframe Developer job openings:
Remote Mainframe Developer jobs near you
Infographic showing various Remote Mainframe Developer job openings in Saint Louis, MO as of July 2026, with employment types broken down into 65% Full Time, 6% Part Time, 3% Temporary, and 26% Contract. Highlights an 100% Remote job distribution, with an average salary of $107,943 per year, or $51.9 per hour.

Mainframe Developer (Remote)

S2Tech

Chesterfield, MO • Remote

$48.50 - $62.25/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 2 days ago

Job description

Mainframe Developer

Location: Remote

About Us:

Known for “Delighting the Client” through performance, innovation, and an employee-centric culture, S2Tech is a fast-growing IT consulting company serving clients in over a quarter of the United States. We are widely recognized as a leading provider of both technical and business services in support of Health and Human Services-related projects. Feel free to learn more at www.s2tech.com.

Why S2Tech?:

  • Stable privately-owned company with a strong reputation for building long-term client relationships through the delivery of consistent value-based service
  • 25+ years providing IT and Business services to private customers and government programs throughout the United States
  • Expansive client portfolio and active projects – employees benefit from innovative project exposure and in-house skill development training/courses  
  • Corporate culture that emphasizes the importance of family and promotes a healthy work-life balance
  • Offer competitive pay and a range of benefits, including:
    • Medical / Dental / Vision Insurance – insurance premium assistance provided
    • Additional Insurance (Life, Disability, etc.)
    • Paid Time Off
    • 401(k) Retirement Savings Plan & Health Savings Account
    • Various training courses to promote continuous learning
    • Corporate Wellness Program
  • Be part of a company that gives back through its non-profit organization, Fortune Fund, which was launched in 2001. The goal of the Fortune Fund is to close the rural/urban divide by ensuring children in rural communities in India and the United States understand the importance of education & are aware of professional career opportunities, allowing them to link their professional & educational goals

Job Overview:

We are seeking an experienced COBOL Mainframe Developer to join our dynamic team. The ideal candidate will have a proven track record of success in designing, developing, and maintaining COBOL-based applications on mainframe systems.

Responsibilities:

  • COBOL Development: Design, code, test, and maintain COBOL programs for mainframe applications
  • Mainframe Systems: Work with mainframe systems and associated technologies to ensure optimal performance and reliability
  • Analysis and Troubleshooting: Analyze business requirements and system specifications to develop effective and efficient COBOL solutions. Identify and troubleshoot issues, providing timely resolutions
  • Collaboration: Collaborate with cross-functional teams, including business analysts, systems analysts, and other developers, to ensure seamless integration of COBOL applications within the broader IT ecosystem
  • Documentation: Create and maintain comprehensive documentation for all COBOL programs, ensuring clarity and ease of understanding for other team members
  • Testing: Conduct thorough unit testing of developed code to ensure its functionality, reliability, and compliance with established standards
  • Performance Optimization: Identify opportunities for performance optimization and implement necessary improvements to enhance the overall efficiency of COBOL applications

Qualifications:

  • Bachelor's degree in Computer Science, Information Technology, or a related field
  • Over 5 years of hands-on experience in COBOL development on mainframe systems; a strong preference for prior Medicaid experience
  • Strong knowledge of mainframe technologies and associated tools
  • Experience in working on large-scale projects with complex business logic
  • Excellent analytical and problem-solving skills
  • Strong communication and interpersonal skills
  • Ability to work independently and as part of a collaborative team
  • Detail-oriented with a commitment to producing high-quality code

S2Tech is committed to hiring and retaining a diverse workforce. We are an equal opportunity employer making decisions without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected class.

Apply