257 Results for

Mainframe Assembler Jobs in the United States

Jobs

New!

Downey, CA5 days ago

$1–$1 Per Hour

The Information Technology Mainframe Operator communicates with system programmers, who assist the operator in determining the proper course of action, and with the production control analyst, who works with the operator to make sure that production workloads are completing properly. The Information Technology Mainframe Operator starts and stops system tasks, monitors the system consoles for unusual conditions, and works with the system programming and production control staff to ensure the health and normal operation of the systems.

New!

4 days ago

Remote

$40–$45 Per Hour

By applying to our jobs you agree to receive calls, AI-generated calls, text messages, or emails from Pyramid Consulting, Inc. and its affiliates, and contracted partners. Hogan Product Development and Services: Designs, develops, installs, tests, and documents complex application software.

New!

Merrimack, NHToday

Full-time
Employee

Ability to work with a variety of individuals and groups, both in person and virtually, in a constructive and collaborative manner. 5+ years of mainframe software development experience using Cobol, DB2, JCL, VSAM.

Brookfield, WI11 days ago

$40.80–$55.20

Summary: The Mainframe Programmer performs all or part of full life cycle development process with an emphasis on developing business applications, supporting existing applications, modifying/enhancing them support current needs, and implementing the changes necessary as the needs of the business unit's change. Kforce's Financial Services client in Brookfield, WI is seeking experienced COBOL Mainframe Programmer to assist with ongoing Payment Systems initiative.

Wilmington, DE15 days ago

$55–$60 Per Year
Full-time
Employee

Programming Languages: Strong proficiency in COBOL• Mainframe Operating Systems: In-depth knowledge of z/OS• Database Technologies: Expertise in IMS database concepts including IMS/DB and IMS/DC• Transaction Processing: Thorough understanding of CICS functionalities and programming interfaces• Job Control Language (JCL): Ability to write and manage JCL scripts for batch processing• System Administration: Basic understanding of mainframe system administration tasks like data set management and securityMust Have: IMS/DB, CICS, COBOL and JCL. Location: Wilmington, DE (5 days onsite)Job Description:

Woodlawn, MD14 days ago

$80–$95 Per Hour
Temporary
Contractor
Full-time

This role requires deep expertise in legacy systems, strong problem-solving skills, and the ability to work in a fast-paced, mission-critical environment. We are seeking a highly experienced COBOL Developer to design, develop, and maintain enterprise-scale mainframe applications.

New!

Westlake, TXToday

$48–$58

Employee pay is based on factors like relevant education, qualifications, certifications, experience, skills, seniority, location, performance, union contract and business needs. By clicking “Apply Today” you agree to receive calls, AI-generated calls, text messages or emails from Kforce and its affiliates, and service providers.

New!

Wilmington, DE5 days ago

Full-time

Tanisha Systems services clients in Government, Banking & Financial Markets, Insurance, Healthcare, Retail & Consumer Goods, Energy & Utilities, Life Sciences, Telecom, Manufacturing and Transportation Industries around the globe. We use a client-centric engagement model that combines local on-site and off-site resources with the cost, global expertise and quality advantages of off-shore operations.

New!

Phoenix, AZ1 day ago

$69–$76 Per Hour
Temporary
Contractor
Full-time

We are seeking an experienced Mainframe Data Conversion Lead to lead the complex migration of legacy mainframe data (primarily IBM z/OS, DB2, VSAM, IMS, and COBOL-based systems) into Salesforce using Informatica as the primary ETL tool and SQL Server as the staging and transformation platform. Work closely with Salesforce architects and developers to ensure data is loaded efficiently using Salesforce APIs, Bulk API, and Data Loader (or Informatica Salesforce Connector).

Phoenix, AZ7 days ago

Temporary
Contractor
Full-time

Description: We are seeking an experienced Mainframe Data Conversion Lead to lead the complex migration of legacy mainframe data (primarily IBM z/OS, DB2, VSAM, IMS, and COBOL-based systems) into Salesforce using Informatica as the primary ETL tool and SQL Server as the staging and transformation platform. Work closely with Salesforce architects and developers to ensure data is loaded efficiently using Salesforce APIs, Bulk API, and Data Loader (or Informatica Salesforce Connector).

New!

Raleigh, NC3 days ago

Remote

$70–$75 Per Hour
Temporary
Contractor
Full-time

Experience developing/maintaining mainframe-based tax management systems using COBOLDevelopment experience with COBOL, EASYTRIEVE, MVS JCL, CICS, SQL and DB2 in a mainframe environment. Mainframe Consultant – Tax Management System - MINIMUM 12+ YEARS.

New!

Pittsburgh, PA4 days ago

Full-time
Employee

Please job title when applying and send resume to HR, Galax-Esystems Corporation, One Oxford Centre, 301 Grant Street, Suite 270, Pittsburgh, PA 15219 or E-mail hr@galaxesystems.com. Information Technology Project Manager: Requires bachelor’s and five (5) years of Experience OR master’s and one (1) year of Experience.

Downey, CA10 days ago

$1–$1 Per Hour

A Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and enhancements of new or existing system software products. This classification must plan, install, configure, test, implement and manage core database products, software products in support of the County’s database architecture and business needs.

Princeton, NJ9 days ago

Full-time
Employee

Exp in developing automated software applications using WebLogic, Websphere, Jboss, Tomcat, Apache, Azure, AWS, Red Hat Open Shift, CI-CD Automation, Hudson, Jenkins team city, Artifactory, GitHub. Exp in cloud application design, create systems for managing, monitoring, and maintaining the cloud system with skills in operating systems, programming languages, networking technologies like TCP/IP and HTTP.

Edison, NJ18 days ago

Temporary
Contractor
Full-time

The ideal candidate will have strong hands‑on expertise in COBOL, DB2, and CICS, with a proven ability to design, develop, and maintain high‑volume, mission‑critical mainframe applications. We are seeking an experienced Application Mainframe Developer to support and enhance enterprise systems within the Retail and Supply Chain domain.

Edison, NJ17 days ago

$70–$80 Per Hour
Temporary
Contractor
Full-time

We are seeking an experienced Mainframe Application Developer to design, develop, and support enterprise‑scale applications within the Retail and Supply Chain domain. The ideal candidate will have strong hands‑on expertise in COBOL, CICS, DB2, JCL, and SQL, along with experience supporting mission‑critical mainframe systems.

Washington, DC30+ days ago

Remote

Full-time

Programming Languages Assembly (Primary language) C C++ Integration Technologies Experience working with enterprise integrations such as: DB2 databases REST or enterprise APIs IBM MQ messaging File-based integrations SFTP data transfers Developmental Responsibilities Legacy system enhancements. Role: Senior Developer – Mainframe / Assembler (z/OS, TPF) Location: Remote or NEC Region Job Type: Long Term Contract Job Summary: Client is seeking a Senior Developer with deep experience in IBM z/OS mainframe environments, specifically working with Assembly language and C/C++.

Not available, WA30+ days ago

Senior mainframe Assembler with good hands-on project development using main frame technologies: Cobol, JCL, DB2, VSAM, CICS and Assembler. Experience in doing impact analysis, Design document creation, change release, deployment, monitoring and estimation.

Not available, WA30+ days ago

Assembler Mainframe Senior Developer is responsible for installing, maintaining, upgrading and supporting various system software products for TNTs z/OS Operating System environment. They require skills including, but not limited to Assembler, COBOL, PL/1 DB2 database and related tools JCL along with CICS expertise.

Not available, WA30+ days ago

Knowledge and experience in transformation/modernization of processing high volumes of data via Mainframe processing to scalable On-prem Distributed or Cloud processing via microservices and containers. Need to be able to develop in both a legacy Mainframe TSO environment and a modern server/container environment using common IDEs and development tools.

Dallas,TX~Tampa, FL~Jersey City, NJ, TX30+ days ago

Mainframe assembler jobs are vital for organizations that rely on legacy systems and large-scale data processing, ensuring the stability, reliability, and efficiency of their critical applications. Collaboration: Working with systems analysts, other developers, and operations teams to ensure seamless integration and reliability.

Columbus, GA30+ days ago

Skills in optimizing assembler code for better performance and ability to convert to other mainframe languages (COBOL, PL/1) that are used in conjunction with Assembler. Expertise to use tools like IBM Debug Tool or equivalent debugging utilities effectively.

Berkeley Heights, NJ30+ days ago

Enhances staff accomplishments and competence by planning delivery of solutions; answering technical and procedural questions for less experienced team members; teaching improved processes; mentoring team members. Good understanding of how technology relates to business, market and industry and applies such knowledge to support the needs of the business.

Baltimore, MD21 days ago

$150,000–$187,000 Per Year
Full-time
Employee

Modernization & AI: Identify and implement AI-driven tools to automate processes and enhance development efficiency; stay ahead of technical advancements to recommend modernization paths for legacy systems. Technical Leadership: Lead technical teams through code reviews, prepare comprehensive documentation (specifications, flowcharts), and collaborate with stakeholders on modernization initiatives.

Carson City, NV26 days ago

Remote

Temporary
Contractor
Part-time

Be experienced working on ZOS tools and utilities - TSO, ISPF, SDSF, JCL, RACF, REXX. Experience working with Application Lifecycle Management tools like LCM, SCLM, RTC, or similar.

Not available, WA30+ days ago

Depending on the team that you join, you could be developing mobile features that give our customers and clients more control over how they bank with the client, strategizing on how big data can make client's trading systems quicker, creating the next innovation in payments for merchants, or supporting the integration of client's private and public cloud platforms. As an experienced Software Engineer working for our leading client, you serve as member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way.

New!

Olympia, WA5 days ago

$60–$70 Per Hour

Ability to conduct repetitive tasks on a computer, utilizing a mouse, keyboard, and monitor \#LI-EB1 **Reasonable accommodation statement** If you require a reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employment selection process, please direct your inquiries to application.accommodations@cai.io or (888) 824 - 8111. Mainframe Developer (COBOL) **Req number:** R7650 **Employment type:** Full time **Worksite flexibility:** Remote **Who we are** CAI is a global services firm with over 9,000 associates worldwide and a yearly revenue of $1.3 billion+.

Chicago, IL, Illinois30+ days ago

Programming Languages: Proficiency in COBOL, JCL, and SQL, and potentially Assembler, CA-7, Throughput manager. • Mainframe Technologies: Experience with mainframe systems, including z/OS, CICS, and DB2.

Richardson, TX30+ days ago

Excellent collaboration and communication skills to work effectively with cross-functional teams. Qualifications and Skills:Bachelor's degree in Computer Science, Information Technology, or related field.

Cedar Rapids, IA30+ days ago

Hands-on experience in TSOISPF, Endevor, File Manager, File Manager IMS utility, File Manager DB2 utility, SDSF, IF, TABLE BASE, Fault Analyzer, IBM De Good to Have Skills Insurance domain knowledge Well versed in JIRA and Confluence. Extensive experience in designing, developing, testing, and deploying COBOL,Assembler, SQL, JCL, IMS DBDC, DB2.

Atlanta, GA30+ days ago

Ensures that legacy systems operate efficiently, and may also participate in system modernization efforts, upgrading or integrating older COBOL-based systems with newer technologies. Ability to debug and resolve issues in COBOL programs using mainframe debugging tools (e.g., Xpediter, Abend-AID).

MADISON, WI30+ days ago

Remote

Beacon Hill Technologies covers a broad spectrum of IT positions, including Project Management and Business Analysis, Programming/Development, Database, Infrastructure, Quality Assurance, Production/Support and ERP roles. specialty divisions, Beacon Hill Associates, Beacon Hill Financial, Beacon Hill HR, Beacon Hill Legal, Beacon Hill Life Sciences and Beacon.

New!

Downey, CA3 days ago

$55–$70

Skills Required: The Senior Application Programmer for Mainframe Systems will possess knowledge and experience in applications software development principles and methods sufficient to participate in the design, development, testing and implementation of new or modified applications software; organization's operational environment; software design principles, methods and approaches; principles, methods and procedures for designing, developing, optimizing and integrating new and/or reusable systems components; pertinent government regulations; infrastructure requirements, database management principles and methodologies, including data structures, data modeling, data warehousing and transaction processing; functionality and operability of the current operating environment; systems engineering concepts and factors such as structured design, supportability, reliability, scalability and maintainability; optimization concepts and methods; establish and maintain cooperative working relationships with those contacted in the course of the work; and speak and write effectively and prepare effective reports. The Senior Application Programmer for Mainframe Systems is responsible for analyzing and refining systems requirements; translating systems requirements into applications prototypes; planning and designing systems architecture; writing, debugging and maintaining code; determining and designing applications architecture; determining output media/formats; designing user interfaces; working with customers to test applications; assuring software and systems quality and functionality; integrating hardware and software components; writing and maintaining program documentation; evaluating new applications software technologies; and/or ensuring the rigorous application of information security/information assurance policies, principles and practices to the delivery of application software services.

New!

South Charleston, WV4 days ago

$40–$45 Per Hour
Contractor

Key Requirements and Technology Experience: Key Skills; Agile Methodology Banking COBOL Mainframe 1-2 years of Hogan experience 5 to 8 years of Mainframe/COBOL/CICS/JCL 4+ Retail Banking domain experience in one or more of Deposits, Lending and Customer Information Experience working with software design, software development life cycle, development methodologies, and implementation Experience in Agile Methodologies 4+ years of product design and development. By applying to our jobs you agree to receive calls, AI-generated calls, text messages, or emails from Pyramid Consulting, Inc. and its affiliates, and contracted partners.

Madison, WI30+ days ago

Apple Computers: Operating System: MacOS: Any currently supported version of MacOS 13 or higher, Memory: Minimum 8 GB, preferred 16 GB+, Processor (CPU): Any 64-bit Intel-based Mac or ARM M-based Mac. The State of Wisconsin is looking for a Senior COBOL Mainframe Programmer to work on high-profile mainframe application projects within the Child Care Child Welfare (CCCW) section.

Princeton, NJ30+ days ago

Programming Languages: Proficiency in COBOL, JCL, and SQL, and potentially Assembler, CA-7, Throughput manager. Mainframe Technologies: Experience with mainframe systems, including z/OS, CICS, and DB2.

Johns Creek, GA30+ days ago

Remote

Analyze application and database performance problems Initiates a shift turnover for issues or problems including any outstanding tickets, mails, abends, calls or messages that are still being worked on are communicated or handed over Responsible for the creation, scheduling, and support of database backup and maintenance processes Implement database turnover requests for all APG groups and application for all environments. Provide level one and level two support on database systems and address spaces Implement changes to database subsystem variables Monitor and read and respond to incoming mail and newsgroups relating to problems and questions.

Plano, TX30+ days ago

$130,700–$196,100 Per Year

Through their expertise, the Systems Reliability Team ensures that Mainframe software products continue to meet the evolving needs of the enterprise, supporting core business processes with high availability and resilience. Broad knowledge and understanding of multiple mainframe disciplines, including z/OS, IMS, CICS, DB2, MQ Series, Automation, Network, Security, WebSphere, OMVS, batch operations, job schedulers (CA7, ESP), ChangeMan, TCP/IP, JES2, and Application support.

Jersey City, NJ30+ days ago

Knowledge of Mainframe Infrastructure ? logical partitions, Data Replication, Charge back, different types of mainframe processors (Common processor, zIIP, zlinux etc) . Familiarity with tools like IBM File Manager and IBM debugger or similar tools from other vendors.

Not available, WA30+ days ago

Executes software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems. Demonstrated knowledge of software applications and technical processes within a technical discipline (e.g., cloud, artificial intelligence, machine learning, mobile, etc.).

Atlanta, Georgia13 days ago

Description: CTG is seeking an experienced Mainframe Developer with strong COBOL development and mainframe modernization expertise to support enterprise application development, modernization, and integration initiatives. About Us: CTG, a Cegeka company, delivers IT and business solutions that enhance clients’ digital agility, empowering them to seize new opportunities and overcome any challenge.

Cincinnati, OH30+ days ago

If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to Human Resources Request Form (https://airtable.com/app21VjYyxLDIX0ez/shrOg4IQS1J6dRiMo) . A large financial organization is seeking a Mainframe Engineer for a contract opportunity through the end of the year (with a likelihood for extensions to next year & potential for conversion).

downey, CA30+ days ago

Jersey City, New Jersey27 days ago

$65–$68 Per Hour

This role requires a strong mix of technical development and business-facing analysis, with a focus on COBOL-based applications, CA-Datacom databases, and enterprise mainframe environments. About Us: CTG, a Cegeka company, delivers IT and business solutions that enhance clients’ digital agility, empowering them to seize new opportunities and overcome any challenge.

Hartford, CT30+ days ago

Interfaces with senior team members in facilitating communications between functional areas or departments and clients to ensure that integration of new, enhanced and existing applications meet client specifications. • Interprets demand forecasts and planning; works with senior team members to provide high quality specifications for complete end-to-end project delivery.

Columbia, SC30+ days ago

Full-time

Mainframe Developer Medicaid Systems (COBOL / JCL / IDMS / CA-ADS) Why This Position is Open This position is open due to the ongoing workload required to support Medicaid IT Systems, particularly claims adjudication and payment processes already in production. Scope of the Project The selected candidate will backfill production systems, contribute to smaller short-term projects, and collaborate with customers, development staff, operations teams, and QA staff.

Edison, NJ30+ days ago

Provide production support leadership, RCA for critical incidents, and implement permanent fixes. Expertise in debugging tools (Abend-AID, Xpediter), File-AID, and job schedulers (CA7/Control-M).

Not available, WA30+ days ago

Depending on the team that you join, you could be developing mobile features that give our customers and clients more control over how they bank with the client, strategizing on how big data can make client's trading systems quicker, creating the next innovation in payments for merchants, or supporting the integration of client's private and public. As an experienced Software Engineer working for our leading client, you serve as member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way.

Downey, CA30+ days ago

$70–$75 Per Hour

Tools/Utilities: JCL, TSO/ISPF, IBM OPTIM, FILE Manager, SPUFI, ICEMAN/ICETOOLS, SORT, VSAM, CLIST, FTP, CA Gen, CA Endevor, CA Spool, IBM WebSphere, Debugger, N2O . All employees are required to comply with E-Verify, an Internet-based system operated by the Department of Homeland Security (DHS) in partnership with the Social Security Administration (SSA).

New!

Downey, CA4 days ago

Tools/Utilities: MVS JCL, MVS TSO/ISPF, IBM OPTIM, FILE MANAGER, SPUFI, ICEMAN/ICETOOLS, SORT, VSAM, CLIST, FTP, DYL260/280, CA GEN (COOLGEN), CA ENDEVOR, CA SPOOL, CA OM WEB VIEWER, IBM WEBSPHERE, DEBUGGER, N2O. Experience RequiredMinimum seven (7) years of experience in electronic data processing systems design and programming with one or more of the following: Languages: COBOL, Natural/ SuperNatural, IMS/DB/DC, DB2/SQL, Assembler, SAS, CICS;MF FOCUS.

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Mainframe Assembler Jobs in the United States

Jobs

Information Technology Mainframe OperatorTech Providers Inc.

Mainframe DeveloperPyramid Consulting, Inc

Mainframe EngineerHCL Global System INC

Mainframe ProgrammerKforce Inc.

Mainframe IMS and CICSPercient, Inc.

Cobol DeveloperAlpha Technologies Inc

Mainframe EngineerKforce Inc.

Mainframe DeveloperTanisha Systems

Mainframe Data Conversion LeadABCS, Inc.

Mainframe Data Conversion Lead - HybridViva USA Inc.

Mainframe Consultant – Tax Management System - MINIMUM 12+ YEARSBEECHWOOD COMPUTING LIMITED

Multiple IT Related PositionsGalax-Esystems Corporation

ADABAS/CICS/IMS Systems Programmer/DBATPI Global Solutions

ROLL TENDERJournal Register Offset

Application Mainframe DeveloperInfinite Computer Solutions Inc

Mainframe Application DeveloperInfinite Computer Solutions Inc

Senior Developer – Mainframe / Assembler (z/OS, TPF)Lumen Solutions Group Inc

Mainframe Assembler - Alpharetta, GA/Omaha, NELorven Technologies

Mainframe AssemblerLorven Technologies

Mainframe Assembler DeveloperLorven Technologies

Mainframe Assembler + DB2 skillsDiverse Linx

Assembler Programmer - Mainframe DB2 / COBOLDiverse Linx

Mainframe AssemblerDiverse Linx

Business systems developerAlpha Technologies Inc

Senior Cobol Developer - W2NovaLink Solutions LLC

Mainframe DeveloperLorven Technologies

Mainframe Developer (COBOL)CAI

Mainframe Developer - Natural/AdabasPurple Drive

Mainframe Developer-Richardson TX (Hybrid)Georgia Tek Systems

Mainframe - COBOLTechDigital

Mainframe Cobol DeveloperDiverse Linx

Cobol Mainframe Developer - RemoteARGUS TECHNICAL SERVICES

Senior Application Programmer - Mainframe SystemsTrinus

Mainframe DeveloperPyramid, Inc

Senior COBOL Mainframe ProgrammerCERTEC, INC.

Mainframe DeveloperDiverse Linx

Mainframe Support - ADABASVeterans Sourcing Group

Senior System Engineering - Mainframe SystemsAT & T

Mainframe ArchitectSyntricate Technologies Inc

Mainframe IMS DB DeveloperLorven Technologies

Mainframe Developer – COBOL (DB2, CICS, Modernization)Computer Task Group, Inc

Mainframe EngineerInsight Global

Information Technology Mainframe OperatorTPI Global (formerly Tech Providers, Inc.)

Mainframe Developer / Analyst COBOL, CICS, CA-DatacomComputer Task Group, Inc

Lead Mainframe Developer in Hartford, CTGeorgia Tek Systems

Mainframe DeveloperLumen Solutions Group Inc

Mainframe-COBOLTechDigital

Mainframe Test EngineerLorven Technologies

Senior Application Programmer - Mainframe Systems 864Global Service Resources

Senior Application Programmer Mainframe SystemsTPI Global (formerly Tech Providers, Inc.)

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