Senior Application Programmer - Mainframe Systems ? Cerritos, CA (Onsite) ? $75-$80/hour ? 12-Month Contract with Potential Extension We are seeking an experienced Senior Application Programmer - Mainframe Systems to support the development, maintenance, enhancement, and implementation of complex enterprise applications in a large-scale mainframe environment. This role will be responsible for designing, coding, testing, troubleshooting, and supporting critical business applications while collaborating with technical and business stakeholders. Key Responsibilities Design, develop, modify, test, implement, and support complex mainframe applications. Analyze business and system requirements and translate them into technical solutions. Develop and maintain application architecture, program specifications, and technical documentation. Troubleshoot and resolve application issues while ensuring system reliability and performance. Perform coding, debugging, testing, and implementation of new and existing software solutions. Support database integrations, transaction processing, and enterprise application functionality. Evaluate and recommend improvements to application design, processes, and technologies. Ensure compliance with information security policies and best practices. Collaborate with technical teams and business users throughout the development lifecycle. Required Qualifications 7+ years of experience in electronic data processing systems design and programming. 7+ years of hands-on experience with IMS, DB2, COBOL, and CICS programming in a mainframe environment.

Strong experience with:

COBOL IMS/DB/DC DB2/SQL CICS JCL MVS TSO/ISPF VSAM CA

Endevor IBM z/OS Experience with database technologies including DB2, IMS, ADABAS, and FOCUS . Knowledge of systems design, software development methodologies, testing, implementation, and support. Strong problem-solving, analytical, and communication skills. Preferred Skills Natural/SuperNatural Assembler SAS CA Gen (CoolGen) IBM WebSphere

IBM OPTIM

File Manager

SPUFI ICEMAN/ICETOOLS

Entire

X HTML ASP

Cloverleaf Education Bachelors degree in Computer Science, Information Technology, or a related field . Additional qualifying experience may be substituted for education on a year-for-year basis. Work Environment Initially onsite Monday through Friday . Opportunity for limited telework (up to 2 days per week) based on project requirements after onboarding. Standard business hours. Additional Requirements Must possess strong experience supporting and maintaining enterprise-level mainframe systems . Ability to work independently and collaboratively in a complex technical environment. Strong written and verbal communication skills. This opportunity is ideal for a seasoned Mainframe Developer with expertise in COBOL, IMS, DB2, CICS, JCL, and z/OS who is looking to contribute to critical enterprise applications in a highly visible and impactful role. #LI-EA1 #INDPRO