Location: Hybrid – New Carrollton, MD (Lanham) with remote flexibility

Position Type: Full-Time

Reports To: Technical Program Manager

Note: This position is contingent upon contract award. Anticipated award date is end of July 2026.

About The C.A.S.E. Engineering Group

The C.A.S.E. Engineering Group is an Information Technology (IT) engineering firm that specializes in providing cybersecurity advisory services, modernizing IT architectures, developing and implementing IT strategic plans, and designing and engineering innovative systems, software, and applications. C.A.S.E. stands for Cybersecurity, Architecture, Strategy, and Engineering, which reflects both our core expertise and our belief that developing innovative solutions in unique environments requires a balanced approach. While C.A.S.E. tailors its solutions on a case-by-case basis to address the specific challenges organizations face, it also leverages industry best practices to ensure efficiency, security, and long-term success.

This position supports a mission-critical federal tax processing environment, where our team sustains and optimizes the core IBM mainframe systems that process the nation’s master file data. We are seeking a Senior ALC Developer with deep Assembly Language Coding expertise who can develop, debug, and optimize high-performance routines at the heart of these high-availability systems, and who excels at the system integration work that keeps a complex mainframe environment running reliably.

We seek professionals who are not only technically proficient but also adaptable, analytical, and dedicated to excellence—ensuring that we continue to provide our clients with the best expertise available.

Position Overview

The Senior ALC Developer will be responsible for developing, maintaining, debugging, and optimizing Assembly Language Coding (ALC) applications on an IBM Mainframe platform in support of a federal tax processing and master file research environment. This role requires extensive experience in mainframe application development, a strong command of system integration within a high-availability environment, and the ability to troubleshoot and optimize performance at a low level. The developer will collaborate with cross-functional teams to resolve production issues, implement enhancements, and ensure all changes meet federal standards before deployment.

This is a full-time, hybrid role requiring availability during normal business hours, with occasional night and weekend work as needed based on project demands. Personnel must have reasonable access to the government site in Lanham, MD and be able to travel there within two hours’ notice. The Senior ALC Developer reports to the Technical Program Manager and works closely with development, testing, and operations teams to ensure high-quality software development and system integration.

Key Responsibilities

• Develop, test, debug, and maintain Assembly Language Coding (ALC) applications on an IBM Mainframe platform
• Perform 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 the 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

Qualifications

Education:

• Bachelor’s degree in Computer Science, Information Systems, or a related field (or equivalent experience)

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

Technical Expertise:

• 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

Additional Skills:

• 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

Clearance:

• Must be able to obtain and maintain an IRS Minimum Background Investigation (MBI); U.S. work authorization required

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

Pay: $120,000.00 - $135,000.00 per year

Benefits:

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

Application Question(s):

• What are your salary expectations?

Location:

• New Carrollton, MD 20784 (Required)

Work Location: Hybrid remote in New Carrollton, MD 20784