Senior ALC Developer

Senior ALC Developer responsible for developing, maintaining, debugging, and optimizing Assembly Language Coding applications on an IBM Mainframe platform within a federal tax processing environment.

Responsibilities

• Develop, test, debug, and maintain Assembly Language Coding (ALC) applications on an IBM Mainframe platform
• Contribute to mainframe application development, optimization, and low-level performance tuning
• Support system integration efforts within a complex, high-availability environment
• Work extensively with Job Control Language (JCL), AEV JCL, VSAM, Panels, Copybooks, and Skeleton PROCS
• Troubleshoot and resolve production problems in a timely manner to sustain system availability
• Follow Production Environment Control Process (PECP) guidelines and manage ServiceNow ticket and Endevor transmittal processes
• Use CFOL Command Codes for research and support analysis of IRS Individual and Business Master Files
• Design, modify, and document coding changes for application enhancements and legislative mandates
• Perform peer reviews and ensure adherence to coding best practices
• Ensure software changes are defect-free before deployment to production
• Produce Enterprise Life Cycle (ELC) documentation such as DSR, iBSR, ICD, and TRR
• Utilize the IBM Engineering Lifecycle Management (ELM) Tool Suites, including DOORS Next, Jira, and Endevor
• Support Agile development practices and collaborate with stakeholders to define and implement technical solutions

Requirements

• Bachelor’s degree in Computer Science, Information Systems, or a related field (or equivalent experience)
• At least 8 years of experience in ALC (Assembler Language) development
• Strong experience in mainframe application development, debugging, and optimization
• Expertise in system integration and working within a high-availability environment
• IBM Mainframe Assembly Language Coding (ALC)
• IBM Suite, File Manager, Job Control Language (JCL), AEV JCL, and IBM Debugger
• VSAM, Panels, Copybooks, and Skeleton PROCS
• Endevor and the Service Now ticket / Endevor transmittal processes
• IBM Engineering Lifecycle Management (ELM) Tool Suites, e.g., IBM Requirements Management
• DOORS Next and Jira
• CFOL Command Codes for research
• Strong problem-solving and debugging skills with attention to detail
• Knowledge of the IRS Individual and Business Master File systems is highly desirable
• Familiarity with Enterprise Life Cycle (ELC) process and documentation, and Agile methodologies
• Knowledge of RHEL 8 containerization and Cloud Migration is a plus
• Ability to collaborate in a team-oriented environment and communicate effectively with technical and non-technical stakeholders
• Adaptability in a fast-paced, evolving work environment with shifting priorities
• Must be able to obtain and maintain an IRS Minimum Background Investigation (MBI); U.S. work authorization required

Technologies

• IBM Mainframe Assembly Language Coding (ALC)
• IBM Suite
• File Manager
• JCL, AEV JCL
• IBM Debugger
• VSAM
• Panels
• Copybooks
• Skeleton PROCS
• Endevor
• ServiceNow ticket / Endevor transmittal processes
• IBM Engineering Lifecycle Management (ELM) Tool Suites
• DOORS Next
• Jira
• CFOL Command Codes
• IBM Requirements Management
• RHEL 8 containerization
• Cloud Migration

Benefits

• Dental insurance
• Health insurance
• Paid sick time
• Paid time off
• Vision insurance

Location

New Carrollton, MD 20784 (Hybrid)

Salary

USD 120,000 - 135,000 per year

Why join us

• Work with mission-critical systems that directly support federal tax processing operations
• Apply specialized Assembly Language expertise on high-impact, high-visibility systems
• Be part of a growing company that values innovation, technical excellence, and problem-solving
• Hybrid role offering flexibility and work-life balance
• Opportunities for professional growth and advancement

Application question

• What are your salary expectations?