{"schemaVersion":"jobsearcher.job.v1","id":"910fa47dc9a671d04ce4dd57","url":"https://jobsearcher.com/jobs/910fa47dc9a671d04ce4dd57","canonicalUrl":"https://jobsearcher.com/jobs/910fa47dc9a671d04ce4dd57","title":"Mainframe Assembler (ALC) Developer","description":"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.\r\nAbout 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 government agencies and private sector organizations to deliver innovative, cost-effective results. Our team brings a blend of technical expertise and human-centered problem solving, with a strong commitment to quality, collaboration, and client success.\r\nDescription Position Overview We are seeking an experienced Mainframe Assembler (ALC) Developer to support a large-scale federal modernization program. This role is 100% remote but based in Washington, DC, with occasional collaboration required with DC-area teams.\r\nKey Responsibilities Design, develop, and maintain Mainframe ALC and JCL programs .\r\nAnalyze, document, and convert complex ALC modules to Java .\r\nSupport Java developers by explaining ALC logic and functionality.\r\nExecute unit and integration testing to ensure technical accuracy.\r\nTranslate business requirements into formal technical solutions.\r\nDocument ALC logic, conversion processes, and modernization steps.\r\nWork within an Agile team to modernize existing legacy systems.\r\nContribute to full SDLC activities , including architecture recommendations.\r\nRequired Qualifications 5–8+ years of experience developing applications in Assembler (ALC) .\r\nStrong skills in JCL and mainframe environments (z/OS, MVS).\r\nExperience with ALC-to-Java conversions and system documentation.\r\nPrior experience on medium to large-scale government contracts .\r\nSolid understanding of Agile development practices.\r\nStrong communication and collaboration skills, able to work independently and in teams.\r\nPreferred Qualifications Familiarity with IRS BMF/IMF/CADE2 systems .\r\nBachelor's degree (additional experience considered in lieu of degree).\r\nKnowledge of Java is a plus.\r\nActive or prior IRS MBI clearance preferred.\r\nProfessional Skills Excellent oral/written communication and time management.\r\nStrong problem-solving, defect resolution, and proactive learning abilities.\r\nAbility to thrive in a collaborative, high-performing team environment .\r\nJ-18808-Ljbffr","company":"Tilodynamics","rawCompany":"tilodynamics","city":"Seattle","state":"WA","isRemote":false,"isActive":false,"createdAt":"2026-05-14T03:21:14.935Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Mainframe Assembler (ALC) Developer","description":"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.\r\nAbout 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 government agencies and private sector organizations to deliver innovative, cost-effective results. Our team brings a blend of technical expertise and human-centered problem solving, with a strong commitment to quality, collaboration, and client success.\r\nDescription Position Overview We are seeking an experienced Mainframe Assembler (ALC) Developer to support a large-scale federal modernization program. This role is 100% remote but based in Washington, DC, with occasional collaboration required with DC-area teams.\r\nKey Responsibilities Design, develop, and maintain Mainframe ALC and JCL programs .\r\nAnalyze, document, and convert complex ALC modules to Java .\r\nSupport Java developers by explaining ALC logic and functionality.\r\nExecute unit and integration testing to ensure technical accuracy.\r\nTranslate business requirements into formal technical solutions.\r\nDocument ALC logic, conversion processes, and modernization steps.\r\nWork within an Agile team to modernize existing legacy systems.\r\nContribute to full SDLC activities , including architecture recommendations.\r\nRequired Qualifications 5–8+ years of experience developing applications in Assembler (ALC) .\r\nStrong skills in JCL and mainframe environments (z/OS, MVS).\r\nExperience with ALC-to-Java conversions and system documentation.\r\nPrior experience on medium to large-scale government contracts .\r\nSolid understanding of Agile development practices.\r\nStrong communication and collaboration skills, able to work independently and in teams.\r\nPreferred Qualifications Familiarity with IRS BMF/IMF/CADE2 systems .\r\nBachelor's degree (additional experience considered in lieu of degree).\r\nKnowledge of Java is a plus.\r\nActive or prior IRS MBI clearance preferred.\r\nProfessional Skills Excellent oral/written communication and time management.\r\nStrong problem-solving, defect resolution, and proactive learning abilities.\r\nAbility to thrive in a collaborative, high-performing team environment .\r\nJ-18808-Ljbffr","datePosted":"2026-05-14T03:21:14.935Z","dateModified":"2026-05-14T03:21:14.935Z","hiringOrganization":{"@type":"Organization","name":"Tilodynamics","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Seattle","addressRegion":"WA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"910fa47dc9a671d04ce4dd57"},"url":"https://jobsearcher.com/jobs/910fa47dc9a671d04ce4dd57"}}