Assembler Developer

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🕒 June 16, 2025

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GCStaffing LLC

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2025

👥 HR Tech

🎯 Recruiter

🤖 Artificial Intelligence

HR Tech • Recruitment • Artificial Intelligence

GCStaffing LLC is a staffing and recruitment firm that connects skilled professionals with organizations across IT, healthcare, pharmaceutical, and biotechnology sectors. The company emphasizes AI-driven recruitment strategies and offers tailored staffing services, consultation, and performance analytics to optimize hiring processes. Founded by industry experts, GCStaffing provides industry-specific talent sourcing, final selection support, and AI integration to streamline talent acquisition for businesses.

📋 Description

• Analyze, maintain, and enhance legacy code written in IBM z/OS assembly language. • Extract business rules from existing assembly code and assist in code conversion efforts. • Work with IRS Core Record Layouts (CRL) and QSAM data formats to support data processing and transformation. • Collaborate with cross-functional teams to ensure accurate interpretation and migration of legacy logic. • Utilize CA Endevor Software Change Manager (SCM) for version control, release management, and secure code handling. • Leverage BMC Control-M for job scheduling, workflow automation, and monitoring batch job execution.

🎯 Requirements

• Bachelor’s degree in Computer Science, Information Systems, or a related field. • In-depth knowledge of IBM z/OS assembly language, including: • - Assembly instructions, addressing modes, and data manipulation techniques • - Job control processing and JCL • Familiarity with IBM mainframe architecture, including: • - Storage hierarchy (registers, memory, I/O) • - System calls (SVCs) and interrupt handling • Experience with IRS Core Record Layouts (CRL) and QSAM/VSAM data formats (highly desirable). • Experience with IRS IMF or BMF systems (highly desirable). • Proficiency with CA Endevor SCM for secure and controlled software development lifecycle management. • Experience with BMC Control-M for job automation and workflow orchestration. • Strong understanding of mainframe development tools, including debuggers, assemblers, linkers, and utilities. • Familiarity with DB2 and other legacy data storage formats. • Understanding of Java programming, including: • - Object-oriented principles, syntax, libraries, and frameworks • - Ability to map assembly logic to Java constructs (loops, conditionals, functions, design patterns)