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Remote Mainframe Developer Jobs in Saint Louis, MO

BAI

Advanced Software Engineer

Saint Louis, MO · On-site +1

$85K - $115K/yr

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

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 ...

Grimco

Senior Developer

Sunset Hills, MO · On-site +1

$52.25 - $69/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

At Grimco, our developers operate across a real, multi-platform technology stack - and their work ships. As a Senior Developer, you'll contribute to a platform that has powered the business for ...

MasterCard

Senior Software Engineer- RPPS Platform

O Fallon, MO · Remote

$114K - $151K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Overview The Transfer Solutions organization is seeking a Senior Software Engineer to join the RPPS (Remote Payment and Presentment System) platform team. This team develops and supports critical ...

The Timberline Group

SR. SOFTWARE ENGINEER

Saint Louis, MO · On-site +1

$119K - $157K/yr

Leadership * Coach less senior Software Engineers in processes, techniques and problem solving ... Remote in the USA Only * Contract-to-Hire 3-6 months * Must be US-Citizen or Green-Card only * Will ...

Healthcare

ENGR SR SOFTWARE DEVT

Saint Louis, MO · Remote

$119K - $157K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Senior Software Engineer 3M Health Care is now Solventum At Solventum, we enable better, smarter ... Remote Travel: May include up to 20% domestic Relocation Assistance: May be authorized Must be ...

Healthcare

ENGR SR SOFTWARE DEVT

Saint Louis, MO · Remote

$119K - $157K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Senior Software Engineer 3M Health Care is now Solventum At Solventum, we enable better, smarter ... Remote Travel: May include up to 20% domestic Relocation Assistance: May be authorized Must be ...

The Timberline Group

SOFTWARE ENGINEER

Saint Louis, MO · On-site +1

Proactively engage with more senior developers for help. Specific Skills may include * Custom ... Remote in the USA Only * Contract-to-Hire 3-6 months * Must be US-Citizen or Green-Card only * Will ...

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Showing results 21-40

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

Remote Mainframe Developer information

See Saint Louis, MO salary details

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How much do remote mainframe developer jobs pay per hour?

As of Aug 19, 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 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.

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.

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.

Are remote mainframe developer jobs in demand?

Remote mainframe developer jobs are in steady demand due to ongoing reliance on legacy systems in industries like finance and government. Skills in COBOL, JCL, and mainframe environments remain valuable, and remote work options are increasingly available for experienced professionals. However, the overall demand is influenced by industry adoption of modern technologies and digital transformation efforts.
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Remote Mainframe Developer jobs near you
Infographic showing various Remote Mainframe Developer job openings in Saint Louis, MO as of August 2026, with employment types broken down into 81% Full Time, 5% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $107,943 per year, or $51.9 per hour.

Advanced Software Engineer

ProSight Financial Association

Saint Louis, MO • On-site, Remote

$85K - $115K/yr

Full-time

Retirement, PTO

Re-posted 19 days ago

Job description

Advanced Software Engineer
Chicago, IL
Reports To: Director, Product Development & Operations
 
BAI and RMA have come together as ProSight Financial Association, a leading industry organization whose purpose is to empower financial services leaders to strengthen and advance our industry. The strategic combination brings together RMA’s expertise in serving the commercial banking and risk management functions and BAI’s knowledge in serving the retail banking and regulatory compliance functions. It’s a complementary union of two non-profit organizations that have always had their members’ and customers’ best interests in mind. Our industry-leading offerings include peer sharing events, thought leadership, learning and development, and decision support solutions. Our work creates positive ripple effects throughout financial services organizations and ultimately helps consumers, businesses and communities thrive.
 
We are seeking an experienced and results-driven Advanced Software Engineer with strong .NET/C# and SQL skills and hands-on experience developing Microsoft Azure cloud solutions. In this role, you’ll be instrumental in designing, developing, deploying, and maintaining secure, reliable, and scalable software solutions that deliver market-leading value to our customers.
 
What You’ll Do:
  • Design, implement, and maintain secure, scalable, and reliable software systems.
  • Collaborate with product managers, architects, designers, and engineers to translate business requirements into secure, scalable, reliable, and effective customer-focused software solutions.
  • Deploy, manage, and monitor applications on Microsoft Azure, following best practices for cloud architecture.
  • Write and maintain clean, efficient, and testable code using modern engineering best practices such as CI/CD and automated testing.
  • Participate in code reviews, technical guidance, and knowledge sharing.
  • Participate in efforts to remediate and resolve security, performance, reliability, and scalability issues, including root cause analysis and preventive measures.
  • Contribute to architectural planning and technology roadmaps.
  • Stay current with the latest security threats and secure engineering practices to ensure that all application components remain protected
What We’re Looking For:
  • 3–5+ years of professional experience in software engineering.
  • Strong experience with Microsoft Azure, including services like Azure Functions, Azure App Services, and Azure DevOps.
  • Proficiency in C# and other .NET-based languages, with experience maintaining both legacy and modern applications.
  • Solid understanding of front-end technologies including HTML, CSS, JavaScript, and React.JS, and legacy Angular JS.
  • Familiarity with containerization technologies such as Docker and orchestration tools like Kubernetes.
  • Solid understanding of RESTful APIs and asynchronous programming patterns.
  • Strong experience with SQL databases (e.g., Microsoft SQL Server, MySQL, PostgreSQL), including schema design and query optimization.
  • Self-starter, comfortable with ambiguity, ability to initiate and reliably drive projects forward with minimal oversight
  • Excellent problem-solving skills and the ability to work effectively within cross-functional teams.
  • Ability to communicate effectively with both technical and non-technical stakeholders
  • Ability to work in the Chicago office periodically is required
Preferred Qualifications:
  • Familiarity with Infrastructure-as-Code tools (e.g., Terraform, ARM templates).
  • Familiarity with microservice development, design patterns, separation of concerns, and maintainable architecture
  • Background in DevOps practices and CI/CD pipeline implementation.
  • Experience in Agile/Scrum development environments.
  • Experience with e-learning/online learning, policy management, and/or governance risk and compliance a plus
  • Familiarity with financial services/banking industry a plus
The salary range for this position is $85,000 - $115,000.  Compensation offered will be determined by factors such as skills, experience, education, job-related knowledge and market considerations.  ProSight offers an outstanding benefits package with comprehensive insurance coverage, a 401(k) plan with company match, flexible paid time off, hybrid and remote working models, tuition assistance and the ability to work in a collaborative, team-oriented environment.
 
 
To learn more about our company please visit www.prosightfa.org, www.bai.org, and www.rmahq.org 

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