Demo

Mainframe Developer

US Tech Solutions
Downey, CA Contractor
POSTED ON 5/11/2026
AVAILABLE BEFORE 6/7/2026

Title: Senior Application Programmer – Mainframe Systems

Location: Downey, CA, 90242 (Onsite)

Duration: 12 Months Contract


Position Description:

A Senior Application Programmer for Mainframe Systems is responsible for leading and/or working on the most complex IT applications design, documentation, development, modification, testing, installation, implementation, and support of new or existing applications software. 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.

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.

Additional Skills Required

Must have a strong background in ADABAS/NATURAL, JCL, TSO/ISPF, Predict, and N2O.

Experience Required

This classification must have a minimum of seven (7) years of experience in electronic data processing systems design and programming with one or more of the software set forth below. LANGUAGES: COBOL, Natural/ SuperNatural, IMS/DB/DC, DB2/SQL, Assembler, SAS, CICS; MF FOCUS; 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; DATABASES: DB2, IMS, ADABAS, FOCUS; OS: z/OS; OTHER: EntireX, ASP, HTML, Cloverleaf.

Additional Experience Required: This classification must have a minimum of seven (7) years of demonstrated experience in ADABAS/NATURAL programming within a mainframe environment, with proficiency in the following areas:

  • Language: Natural
  • Database: ADABAS
  • Tools and Utilities: JCL, TSO/ISPF, Predict, N2O, CA Spool
  • OS: z/OS
  • Additional Technologies: EntireX, SuperNatural, Cloverleaf


Education Required: This classification requires the possession of a bachelor’s degree in an IT-related or Computer Science field. Additional qualifying experience may be substituted for the required education on a year-for-year basis.


Additional Information: This assignment will require onsite work 5 days (M-F) per week initially for at least 6 months and gradually allowing up to 2 days telework depending on the current project requirements. At least 7 years' experience in ADABAS/NATURAL programming is mandatory.


About US Tech Solutions:

US Tech Solutions is a global staff augmentation firm providing a wide range of talent on-demand and total workforce solutions. To know more about US Tech Solutions, please visit www.ustechsolutions.com.


US Tech Solutions is an Equal Opportunity Employer.All qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.


Recruiter Details:

Name: Sumanth Pinnumalla

Email: sumanth.pinnumalla@ustechsolutionsinc.com

Internal Id: 26-10957

Salary : $50 - $60

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