Mainframe Assembler (ALC) Developer

Tilodynamics • washington state, washington state • Posted May 22, 2026

About the Role

TILO DYNAMICS LLC Mainframe Assembler (ALC) Developer Remote·Contractor Company website Apply for Mainframe Assembler (ALC) Developer

We are seeking an experienced Assembler (ALC) developer to support a large federal system modernization effort. In this role, you will design, maintain, and enhance mainframe ALC and JCL programs, help convert legacy ALC modules into Java, and collaborate with Agile teams to deliver secure, reliable solutions. Candidates should bring 5+ years of ALC development experience, strong debugging and documentation skills, and the ability to work closely with both technical teams and business stakeholders. Knowledge of IRS BMF/IMF/CADE2 systems and an active or prior IRS MBI clearance are a plus.

About TILO DYNAMICS LLC

Tilo Dynamics is a Washington, DC–based professional services firm specializing in IT, data analytics, systems engineering, and staffing solutions. As a Certified Business Enterprise (CBE), we partner with gover...