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Senior Mainframe Software Engineer Jobs in Ohio (NOW HIRING)

2T Consulting

Mainframe Assembler Developer

Waynesville, OH · On-site

$43.75 - $56.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Wilmington, OH · On-site

$43.75 - $56.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Lees Creek, OH · On-site

$44.50 - $57.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Port William, OH · On-site

$43.50 - $56/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Jamestown, OH · On-site

$43.75 - $56.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Highland, OH · On-site

$45.50 - $58.50/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Reesville, OH · On-site

$44.50 - $57/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Blanchester, OH · On-site

$43.50 - $56/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

New Vienna, OH · On-site

$44.25 - $56.75/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Reesville, OH · On-site

$44.50 - $57/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Jamestown, OH · On-site

$43.75 - $56.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Blanchester, OH · On-site

$43.50 - $56/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Clarksville, OH · On-site

$43.25 - $55.50/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Bowersville, OH · On-site

$44 - $56.75/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Bowersville, OH · On-site

$44 - $56.75/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Cuba, OH · On-site

$44 - $56.50/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Clarksville, OH · On-site

$43.25 - $55.50/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Reesville, OH · On-site

$44.50 - $57/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Bowersville, OH · On-site

$44 - $56.75/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

2T Consulting

Mainframe Assembler Developer

Wilmington, OH · On-site

$43.75 - $56.25/hr

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler ... Work through the complete Software Development Life Cycle (SDLC), including analysis, development ...

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All JobsMainframe Software Engineer JobsSenior Mainframe Software Engineer JobsSenior Mainframe Software Engineer Jobs in Ohio

Senior Mainframe Software Engineer information

What is a senior mainframe software engineer?

Senior Mainframe Software Engineers are experienced professionals who design, develop, maintain, and optimize software applications running on mainframe computer systems. They typically work with legacy programming languages such as COBOL, PL/I, or Assembler, and are responsible for ensuring the reliability, scalability, and security of critical business applications. Their role often includes troubleshooting complex issues, integrating new technologies with existing systems, and mentoring junior engineers. These specialists are essential for organizations that rely on mainframes for large-scale data processing and transaction management.

What are the key skills and qualifications needed to thrive as a senior mainframe software engineer?

To thrive as a Senior Mainframe Software Engineer, you need deep expertise in COBOL, JCL, DB2, and mainframe architecture, often backed by a degree in computer science or related fields and several years of relevant experience. Familiarity with tools like IBM z/OS, CICS, RACF, and version control systems is typically required, along with certifications like IBM Certified System Programmer as a plus. Strong analytical thinking, problem-solving ability, and effective communication are crucial soft skills for leading projects and collaborating with cross-functional teams. These skills ensure reliable, secure, and efficient operation of critical legacy systems that are foundational to many large organizations.

What are some common challenges faced by senior mainframe software engineers when integrating legacy systems with modern technologies?

Senior Mainframe Software Engineers often encounter challenges when bridging legacy mainframe systems with newer technologies, such as ensuring compatibility, maintaining data integrity, and managing security risks. These integrations typically require a deep understanding of both the existing mainframe environment and the modern platforms being adopted. Collaboration with cross-functional teams, including application developers, architects, and business analysts, is essential to design effective solutions and minimize disruptions. Staying current with industry best practices and emerging tools can help address these challenges and ensure a smooth transition.

What is the difference between Senior Mainframe Software Engineer vs Mainframe Developer?

AspectSenior Mainframe Software EngineerMainframe Developer
CredentialsBachelor's in Computer Science or related, often with certifications like IBM Certified SpecialistSimilar educational background, often with certifications in mainframe technologies
Work EnvironmentLarge enterprise IT departments, financial institutions, government agenciesSame as Senior Mainframe Software Engineer, often within similar industries
ResponsibilitiesDesign, develop, and oversee mainframe applications; lead projects; troubleshoot complex issuesDevelop and maintain mainframe applications; focus on coding and debugging

While both roles involve mainframe technologies and similar credentials, Senior Mainframe Software Engineers typically have more leadership responsibilities and oversee projects, whereas Mainframe Developers focus primarily on coding and application maintenance.

What are popular job titles related to Senior Mainframe Software Engineer jobs in Ohio?

For Senior Mainframe Software Engineer jobs in Ohio, the most frequently searched job titles are:

What job categories do people searching Senior Mainframe Software Engineer jobs in Ohio look for?

The top searched job categories for Senior Mainframe Software Engineer jobs in Ohio are:

What cities in Ohio are hiring for Senior Mainframe Software Engineer jobs?

Cities in Ohio with the most Senior Mainframe Software Engineer job openings:

Senior Mainframe Software Engineer jobs near you
Infographic showing various Senior Mainframe Software Engineer job openings in Ohio as of July 2026, with employment types broken down into 63% Full Time, and 37% Contract. Highlights an 100% In-person job distribution.

Mainframe Assembler Developer

2T Consulting

Waynesville, OH • On-site

$43.75 - $56.25/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

We are seeking an experienced Mainframe Assembler Developer with strong expertise in IBM Assembler programming and mainframe environments. The ideal candidate will be responsible for designing, developing, testing, and supporting mainframe applications while ensuring performance, reliability, and adherence to coding standards.

Roles and Responsibilities

  • Design, develop, code, and test application programs using IBM Assembler language.
  • Work through the complete Software Development Life Cycle (SDLC), including analysis, development, testing, and maintenance.
  • Develop and support applications in mainframe environments, including z/OS operating systems.
  • Perform debugging, troubleshooting, and performance tuning of mainframe applications.
  • Analyze and resolve application issues to ensure system stability and efficiency.
  • Create and maintain technical documentation for assembler programs, including design details and usage guidelines.
  • Provide technical support and ensure compliance with development standards and best practices.
  • Collaborate with system architects, analysts, and technical teams to translate business requirements into efficient low-level solutions.
  • Stay current with evolving mainframe technologies and assembler programming practices.

Required Skills

  • 10+ years of experience in Mainframe Assembler development.
  • Strong hands-on experience with IBM Assembler language.
  • Experience working with z/OS mainframe operating systems.
  • Strong knowledge of mainframe application development and debugging.
  • Understanding of SDLC processes and enterprise software development practices.
  • Ability to analyze complex technical issues and provide effective solutions.

Apply