Wilmington, DE · On-site
$45 - $55/hr
The ideal candidate will have strong expertise in IBM Assembler programming, z/OS, and the Software Development Life Cycle (SDLC). This role involves developing, maintaining, and optimizing ...
Quick apply
Wilmington, DE · On-site
$45 - $55/hr
The ideal candidate will have strong expertise in IBM Assembler programming, z/OS, and the Software Development Life Cycle (SDLC). This role involves developing, maintaining, and optimizing ...
Columbus, OH · On-site
$45.75 - $58.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Columbus, OH · On-site
$45.75 - $58.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Columbus, OH · On-site
$47.25 - $60.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Quick apply
Columbus, OH · On-site
$47.25 - $60.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Columbus, OH · On-site
$47.25 - $60.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Columbus, OH · On-site
$47.25 - $60.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Wilmington, DE · On-site
$47.50 - $61/hr
IBM Assembler (HLASM) Programming * IBM z/OS * Mainframe Application Development * SDLC * Debugging & Troubleshooting * Mainframe Performance Tuning * Technical Documentation * Mainframe System ...
Wilmington, DE · On-site
$47.50 - $61/hr
IBM Assembler (HLASM) Programming * IBM z/OS * Mainframe Application Development * SDLC * Debugging & Troubleshooting * Mainframe Performance Tuning * Technical Documentation * Mainframe System ...
Wilmington, DE · On-site
$47.50 - $61/hr
Wilmington, DE (5 Days Onsite) Experience: 10+ Years Short We are looking for an experienced Mainframe Assembler Developer with 10+ years of hands-on experience in IBM Assembler programming. The ...
Wilmington, DE · On-site
$47.50 - $61/hr
Wilmington, DE (5 Days Onsite) Experience: 10+ Years Short We are looking for an experienced Mainframe Assembler Developer with 10+ years of hands-on experience in IBM Assembler programming. The ...
Columbus, OH · On-site
$47.25 - $60.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Columbus, OH · On-site
$47.25 - $60.75/hr
Overview Inabia is seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team ...
Columbus, OH · On-site
$47.25 - $60.75/hr
seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team members to design ...
Quick apply
Columbus, OH · On-site
$47.25 - $60.75/hr
seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team members to design ...
Columbus, OH · On-site
$47.25 - $60.75/hr
seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team members to design ...
Columbus, OH · On-site
$47.25 - $60.75/hr
seeking an experienced Assembler and COBOL-CICS Developer with a strong background in IBM Mainframe technologies to join our team. In this role, you will collaborate with team members to design ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Columbus, OH · On-site
$47 - $63.50/hr
Assembler and COBOL- CICS Developer Demand Location - Day-1 onsite at Columbus OH 10+yrs of experience As an Assembler and COBOL- CICS Developer , you need to have strong background in IBM Mainframe ...
Columbus, OH · On-site
$47 - $63.50/hr
Assembler and COBOL- CICS Developer Demand Location - Day-1 onsite at Columbus OH 10+yrs of experience As an Assembler and COBOL- CICS Developer , you need to have strong background in IBM Mainframe ...
Wilmington, DE · On-site
$60/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Quick apply
Wilmington, DE · On-site
$60/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
IBM Assembler and PL/1 Programming Languages - Yes/No? * Connect Direct - Yes/No? * BIM/Edit for Source Management - Yes/No? * MS Office Suite. - Yes/No? Additional Information
IBM Assembler and PL/1 Programming Languages - Yes/No? * Connect Direct - Yes/No? * BIM/Edit for Source Management - Yes/No? * MS Office Suite. - Yes/No? Additional Information
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe Assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
New
Wilmington, DE · On-site
$47.50 - $61/hr
Mainframe Assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life ...
New
Plano, TX · On-site
$45.75 - $59/hr
Heavy experience in software development using IBM Assembler in the zOS operating system * Skills with system level functions such as SVCs and PC calls. * Experience working with mainframe database ...
Plano, TX · On-site
$45.75 - $59/hr
Heavy experience in software development using IBM Assembler in the zOS operating system * Skills with system level functions such as SVCs and PC calls. * Experience working with mainframe database ...
Plano, TX · On-site
$47 - $60.50/hr
IBM Assembler * COBOL * PL/I * C * C++ * Java * .NET * Experience working with IBM z/OS (mainframe) and Windows/Linux/Unix environments. * Knowledge of secure coding, cybersecurity principles ...
Plano, TX · On-site
$47 - $60.50/hr
IBM Assembler * COBOL * PL/I * C * C++ * Java * .NET * Experience working with IBM z/OS (mainframe) and Windows/Linux/Unix environments. * Knowledge of secure coding, cybersecurity principles ...
$45.75 - $59/hr
* Heavy experience in software development using IBM Assembler in the zOS operating system * Skills with system level functions such as SVCs and PC calls. * Experience working with mainframe database ...
$45.75 - $59/hr
* Heavy experience in software development using IBM Assembler in the zOS operating system * Skills with system level functions such as SVCs and PC calls. * Experience working with mainframe database ...
$11.30 - $12.37
0% of jobs
$12.37 - $13.44
3% of jobs
$13.44 - $14.51
6% of jobs
$14.51 - $15.58
11% of jobs
$15.82 is the 25th percentile. Wages below this are outliers.
$15.58 - $16.65
19% of jobs
The median wage is $17.28 / hr.
$16.65 - $17.72
18% of jobs
$18.79 is the 75th percentile. Wages above this are outliers.
$17.72 - $18.79
18% of jobs
$18.79 - $19.86
10% of jobs
$19.86 - $20.94
7% of jobs
$20.94 - $22.01
5% of jobs
$22.01 - $23.08
2% of jobs
$11
$17
$23
An IBM Assembler job involves programming in IBM Assembly Language (HLASM) to develop, maintain, and optimize low-level software on mainframe systems. IBM Assemblers work with operating system components, system utilities, and performance-critical applications. They often collaborate with system engineers to ensure efficient execution of machine-level instructions and support legacy applications. This role requires strong knowledge of mainframe architecture, debugging tools, and performance tuning techniques.
IBM Assemblers typically spend their days writing, modifying, and testing assembler code to maintain or enhance mainframe applications, often using IBM tools like z/OS and ISPF. Their work involves debugging and optimizing programs, troubleshooting system issues, and collaborating closely with systems analysts, application developers, and operations teams to ensure smooth batch processing and data integrity. Documentation and code review are important parts of the routine, as is adapting to new business requirements or technical challenges. This role offers a dynamic, team-oriented environment with opportunities to learn from other experienced professionals and contribute directly to critical business operations.
To thrive as an IBM Assembler, you need a strong grasp of low-level programming, mainframe systems, and assembly language, often supported by a degree in computer science or a related field. Familiarity with IBM z/OS environments, TSO/ISPF, JCL, and debugging tools, as well as any IBM-specific certifications, is highly beneficial. Attention to detail, problem-solving ability, and clear communication are important soft skills for delivering precise, reliable solutions in collaborative IT teams. These skills ensure accurate development and maintenance of mission-critical software, supporting complex business operations on enterprise mainframes.
Location: Wilmington, Delaware
Pay Rate: $45–$55/hr
Contract: Long-Term Contract
Schedule: Onsite | 5 Days/Week
Work Model: Onsite (5 Days/Week)
Employment Type: Contract
Experience: 10+ Years Required
About the Role
We are seeking an experienced Mainframe Assembler Developer for a contract opportunity in Wilmington, Delaware. The ideal candidate will have strong expertise in IBM Assembler programming, z/OS, and the Software Development Life Cycle (SDLC). This role involves developing, maintaining, and optimizing enterprise mainframe applications while ensuring system reliability and performance.
Responsibilities
• Design, develop, test, and maintain applications using IBM Assembler.
• Analyze business and technical requirements to deliver efficient mainframe solutions.
• Perform debugging, troubleshooting, and performance optimization of mainframe applications.
• Create and maintain technical documentation, coding standards, and program specifications.
• Collaborate with architects, analysts, and development teams throughout the SDLC.
Requirements
• 10+ years of Mainframe Assembler development experience required.
• Strong expertise in IBM Assembler programming and z/OS operating systems.
• Experience with application design, coding, testing, debugging, and production support.
• Solid understanding of the Software Development Life Cycle (SDLC).
• Excellent analytical, troubleshooting, communication, and problem-solving skills.
Position Highlights
• Role: Mainframe Assembler Developer
• Employment Type: Contract
• • Industry: Enterprise Technology
• Technologies: IBM Assembler, z/OS, Mainframe, SDLC, Application Support
Join a collaborative technology team where your mainframe expertise will support the development and maintenance of high-performance enterprise systems while contributing to reliable, business-critical applications.
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Recruiting and staffing services
51 - 200 Employees
Hazlet, NJ, US
2022
