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Assembler Developer at DMV IT Service. Job Title:. Assembly Language Developer. Location:. Bethesda, MD. Employment Type:. Contract. About Us:. DMV IT Service LLC is a trusted IT consulting firm, established in 2020. We specialize in optimizing IT infrastructure, providing expert guidance, and supporting workforce needs with top-tier staffing services. Our expertise spans system administration, cybersecurity, networking, and IT operations. We empower our clients to achieve their technology goals with a client-focused approach that includes online training and job placements, fostering long-term IT success.. Job Purpose:. This role focuses on analyzing, maintaining, and enhancing legacy IBM z/OS assembly language programs. You will extract critical business logic from legacy codebases and collaborate with cross-functional teams to ensure accurate code migration and modernization. You will also manage version control, release processes, and batch job automation within a highly regulated environment.. Key Responsibilities:. . Analyze, troubleshoot, and improve legacy assembly language code on IBM z/OS platforms. . . Extract and document business rules embedded in assembly code to aid in code conversion efforts. . . Work extensively with IRS Core Record Layouts (CRL) and QSAM data formats to facilitate data transformation and processing. . . Collaborate with other teams to ensure proper understanding and migration of legacy system logic. . . Use CA Endevor Software Change Manager (SCM) to manage version control, secure code releases, and lifecycle processes. . . Employ BMC Control-M for automating batch job scheduling, execution monitoring, and workflow management. . . Required Skills & Experience:. . Bachelor’s degree in Computer Science, Information Systems, or a related discipline. . . Strong knowledge of IBM z/OS assembly language, including assembly instructions, addressing modes, data manipulation, job control language (JCL), and job processing. . . Familiarity with IBM mainframe architecture components such as storage hierarchy (registers, memory, I/O), system calls (SVCs), and interrupt handling. . . Experience with IRS Core Record Layouts (CRL) and QSAM/VSAM data formats is highly preferred. . . Prior work with IRS systems like Individual Master File (IMF) or Business Master File (BMF) is a plus. . . Proficient in using CA Endevor SCM for controlled software development and release management. . . Experienced with BMC Control-M for job scheduling and batch automation. . . Familiarity with mainframe development tools such as debuggers, assemblers, linkers, and utility programs. . . Working knowledge of DB2 and other legacy data storage solutions. . . Basic understanding of Java programming, including object-oriented concepts, syntax, and frameworks, with the ability to translate assembly logic into Java constructs (loops, conditionals, functions, design patterns). . . Company Location: United States.