Assembler Developer - Bethesda, MD (100% Remote Must reside in location)

Summary: The Assembler Developer role requires a highly experienced professional with expertise in IBM z/OS mainframe environments. The position focuses on analyzing and enhancing legacy assembly code while supporting modernization initiatives. Candidates should be familiar with IRS Core Record Layouts and mainframe integration tools. This role is primarily remote but candidates must reside in Bethesda, Maryland.

Key Responsibilities:

• Analyze, maintain, and enhance legacy code written in IBM z/OS Assembly language.
• Extract business rules and assist in code conversion and modernization.
• Work with IRS Core Record Layouts (CRL) and QSAM data formats for data processing.
• Collaborate with cross-functional teams to interpret and migrate legacy business logic.
• Utilize CA Endevor Software Change Manager (SCM) for source control and release management.
• Manage job scheduling and batch operations using BMC Control-M.

Key Skills:

• Bachelor's degree in Computer Science, Information Systems, or related field.
• Strong expertise in IBM z/OS Assembly language, including assembly instructions, addressing modes, and data manipulation.
• JCL and job control processing.
• Familiarity with mainframe architecture (storage, registers, I/O, SVCs, interrupts).
• Hands-on experience with IRS Core Record Layouts (CRL) and QSAM/VSAM data formats.
• IRS IMF or BMF systems (preferred).
• CA Endevor SCM for version control.
• BMC Control-M for batch job management.
• Understanding of DB2 and legacy data stores.
• Working knowledge of Java programming, with ability to translate assembly logic into Java constructs (loops, functions, conditionals, etc.).

Salary (Rate): undetermined

City: Bethesda

Country: USA

Working Arrangements: remote

IR35 Status: outside IR35

Seniority Level: undetermined

Industry: IT