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1mo ago

Senior ALC Developer

The C.A.S.E. Engineering Group New Carrollton, MD

New Carrollton, MD

1mo ago Closed

$120k - $135k/yr Full time Senior Application Lifecycle Management Assembly

This position is no longer accepting applications (closed Jul 14, 2026).

Job Description

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?

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