- Leidos (Baltimore, MD)
- **Description** Leidos is seeking a ** Sr . Mainframe Developer ** to be part of the mission solution and help lead SSA's Digital Modernization Strategy. Join ... with Mainframe Assembler development. + Certification such as IBM Mainframe Developer Professional, Interskill - Mainframe Application Programmer… more
- Cognizant (Washington, DC)
- We are seeking a highly skilled Senior Mainframe Developer to join our innovative IT team. In this pivotal role, you will leverage your extensive experience ... with mainframe systems to design, develop, and optimize complex applications...The ideal candidate will possess a deep understanding of mainframe technologies and their integration with modern development methodologies.… more
- Cognizant (Washington, DC)
- **About the role** As a ** Senior Mainframe Developer ** , you will make an impact by designing, developing, and implementing robust mainframe solutions ... you will:** + Analyze and review requirements related to Mainframe and zOS systems. + Develop and maintain applications...to have to be considered:** + Proven experience in Mainframe development with strong expertise in COBOL, VSAM, DB2,… more
- GovCIO (Washington, DC)
- **Overview** GovCIO is currently hiring for Senior Mainframe Developer to perform maintenance, remediation's, and updates to mission critical applications ... USD $160,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6700/ senior - mainframe - developer /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6700_… more
- Koniag Government Services (Chantilly, VA)
- Koniag Data Solutions, a Koniag Government Services company, is seeking a COBOL Developer with a Secret clearance to support KDS and our government customer in ... weeks paid time off, and more. Koniag Data Solutions is seeking a skilled COBOL Developer to join our team. This role is critical in maintaining and enhancing legacy… more
- Rocket Software (Washington, DC)
- …Enterprise Suite Professional Services Team is looking for a highly skilled Mainframe Modernization Senior Consultant to provide technical support and/or ... Enterprise Suite Professional Services Team is looking for a highly skilled Mainframe Modernization Senior Consultant to provide technical support and/or… more
- Shuvel Digital (Vienna, VA)
- …and related automation + Experience with ServiceNow as a power user and/or developer and/or administrator + Cloud computing, with specific understanding of: Azure + ... + Application development Nice to Have Experience With: + IBM Mainframe (z Series) configuration items including data, applications and infrastructure: COBOL,… more