Leidos
Senior Mainframe Software Engineer
Leidos - Baltimore, Maryland, United States, 21276
Work at Leidos
Overview
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Overview
Description
Leidos is on the lookout for a
Mainframe Developer
to play a pivotal role in advancing SSA's Digital Modernization Strategy. Join our dynamic team tasked with creating cutting-edge enterprise APIs and modern responsive user interfaces to support the Social Security Administration (SSA) in meeting the evolving needs of the public, impacting at least 65 million American lives each month. We seek a dedicated professional with the following key required skills: COBOL programming, CICS, Endevor Basics, and z/OS. *** Selected candidate must be willing to work on-site in Woodlawn, MD 5 days a week. If this aligns with your career goals, we encourage you to keep reading! TEAM CULTURE Your passion and values might align with ours if you answer yes to the following: Are you looking for a supportive company that prioritizes employee career growth, flexibility, and well-being? Do you thrive in collaborative teams and believe that the best ideas emerge from an inclusive environment? Are you motivated to take ownership, act with urgency, and drive mission success every day? Do you excel at proactive communication and technical leadership? Do you find joy in solving complex problems and delivering innovative solutions? Can you adapt creatively and demonstrate resilience in achieving mission success? Are you committed to making ethical decisions with pride, transparency, and respect? MENTORSHIP & CAREER GROWTH Our teams are committed to fostering an environment of knowledge sharing and mentorship. New hires will be paired with experienced team members for one-on-one mentoring, collaborative reviews, and coaching to ensure successful onboarding. Projects and tasks will be assigned to maximize your strengths and further develop your skillset. DAY TO DAY RESPONSIBILITIES Your work has meaning, supporting those who need it most. If you're passionate about delivering transformative service to others, this is your place. Join a valued team where every member's contribution is recognized, regardless of contractor or employee status.
Discover your purpose with us and become part of our Leidos Family! Design, develop, test, debug, and implement advanced COBOL programs using best practices and the latest technologies. Create and enhance JCL for efficient batch processing. Assess the impact of updated operating systems or new COBOL and Endevor versions on programs. Collaborate with internal teams and external vendors, providing technical guidance and influencing stakeholders to achieve strategic goals. Identify and resolve application defects across COBOL, business logic, CICS configurations, middleware, or databases (PL/SQL and Data Modeling). Communicate technical information to management, customers, and vendors effectively and appropriately for the audience. Perform additional duties as assigned. FOUNDATION FOR SUCCESS
(Basic Qualifications) Bachelor's degree in computer science, mathematics, engineering, or a related field; additional experience may be considered in lieu of a degree. 7+ years of experience in developing COBOL batch and online programs utilizing CICS, JES, JCL, CLIST, maps, and PROC. 2+ years of experience working with Endevor. Must be able to obtain and maintain a Public Trust, as required by the contract. FACTORS TO HELP YOU SHINE
(Required Skills) These skills will be key to your success in this role: Experience in developing and maintaining COBOL applications, including working with structures, copybooks, and CICS maps. Proficiency in developing applications for IBM z/OS. Ability to debug COBOL Programs, CLIST, PROC, and undertake COBOL error tracing using Visual Studio COBOL viewer. Basic familiarity with CICS programs and how COBOL interacts with BMS maps for user interfaces. Hands-on experience using Endevor as a developer. Experience using Endevor with TADZ for reporting and analyzing elements. Working knowledge of ISPF, TSO, JES, and Job Control Language (JCL). Experience in developing and modifying JCL for job execution and batch processing. Hands-on experience with both batch and online processing. Strong communication and writing skills. HOW TO STAND OUT FROM THE CROWD
(Desired Skills) Highlight your modern development expertise through the following experience or skills: Working knowledge of SAS and REXX. Experience with Mainframe Assembler development. Relevant certifications, such as IBM Mainframe Developer Professional or Interskill - Mainframe Application Programmer - COBOL. Solid understanding of relational databases (PostgreSQL, DB2), and SQL. Familiarity with modern development software, tools, and methodologies. Experience working on Agile projects and understanding Agile terminologies. Knowledge of DevOps toolsets (Git/Bitbucket, Docker, Jenkins, SonarQube). At Leidos, we thrive on delivering innovative solutions through the dedication of our diverse and talented people. We empower our teams and contribute to our communities, grounded in our commitment to do the right thing for our customers, our employees, and society. Every role we fill is rewarding when you understand the impact of your work and support those in need. If your passion lies in facilitating transformative services, you belong here. Become part of a supportive team where all members are valued, irrespective of their status. We look forward to welcoming you to the Leidos Family. Are you a US citizen, US resident, or Visa candidate? We urge you to apply and initiate the conversation today! Join us in supporting our SSA contracts based in Woodlawn, Maryland. Come break things (in a good way) and then build them smarter. We are the tech company everyone turns to when faced with unusual challenges. We may not wear capes (for safety reasons), but we creatively tackle high-stakes problems with code, ingenuity, and an unconventional approach. Original Posting:
July 31, 2025 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an expected closing date no earlier than 3 days after the original posting date. Pay Range:
Pay Range $85,150.00 - $153,925.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation. Factors considered in extending an offer include responsibilities, education, experience, skills, and internal equity, among others.
Mainframe Developer
to play a pivotal role in advancing SSA's Digital Modernization Strategy. Join our dynamic team tasked with creating cutting-edge enterprise APIs and modern responsive user interfaces to support the Social Security Administration (SSA) in meeting the evolving needs of the public, impacting at least 65 million American lives each month. We seek a dedicated professional with the following key required skills: COBOL programming, CICS, Endevor Basics, and z/OS. *** Selected candidate must be willing to work on-site in Woodlawn, MD 5 days a week. If this aligns with your career goals, we encourage you to keep reading! TEAM CULTURE Your passion and values might align with ours if you answer yes to the following: Are you looking for a supportive company that prioritizes employee career growth, flexibility, and well-being? Do you thrive in collaborative teams and believe that the best ideas emerge from an inclusive environment? Are you motivated to take ownership, act with urgency, and drive mission success every day? Do you excel at proactive communication and technical leadership? Do you find joy in solving complex problems and delivering innovative solutions? Can you adapt creatively and demonstrate resilience in achieving mission success? Are you committed to making ethical decisions with pride, transparency, and respect? MENTORSHIP & CAREER GROWTH Our teams are committed to fostering an environment of knowledge sharing and mentorship. New hires will be paired with experienced team members for one-on-one mentoring, collaborative reviews, and coaching to ensure successful onboarding. Projects and tasks will be assigned to maximize your strengths and further develop your skillset. DAY TO DAY RESPONSIBILITIES Your work has meaning, supporting those who need it most. If you're passionate about delivering transformative service to others, this is your place. Join a valued team where every member's contribution is recognized, regardless of contractor or employee status.
Discover your purpose with us and become part of our Leidos Family! Design, develop, test, debug, and implement advanced COBOL programs using best practices and the latest technologies. Create and enhance JCL for efficient batch processing. Assess the impact of updated operating systems or new COBOL and Endevor versions on programs. Collaborate with internal teams and external vendors, providing technical guidance and influencing stakeholders to achieve strategic goals. Identify and resolve application defects across COBOL, business logic, CICS configurations, middleware, or databases (PL/SQL and Data Modeling). Communicate technical information to management, customers, and vendors effectively and appropriately for the audience. Perform additional duties as assigned. FOUNDATION FOR SUCCESS
(Basic Qualifications) Bachelor's degree in computer science, mathematics, engineering, or a related field; additional experience may be considered in lieu of a degree. 7+ years of experience in developing COBOL batch and online programs utilizing CICS, JES, JCL, CLIST, maps, and PROC. 2+ years of experience working with Endevor. Must be able to obtain and maintain a Public Trust, as required by the contract. FACTORS TO HELP YOU SHINE
(Required Skills) These skills will be key to your success in this role: Experience in developing and maintaining COBOL applications, including working with structures, copybooks, and CICS maps. Proficiency in developing applications for IBM z/OS. Ability to debug COBOL Programs, CLIST, PROC, and undertake COBOL error tracing using Visual Studio COBOL viewer. Basic familiarity with CICS programs and how COBOL interacts with BMS maps for user interfaces. Hands-on experience using Endevor as a developer. Experience using Endevor with TADZ for reporting and analyzing elements. Working knowledge of ISPF, TSO, JES, and Job Control Language (JCL). Experience in developing and modifying JCL for job execution and batch processing. Hands-on experience with both batch and online processing. Strong communication and writing skills. HOW TO STAND OUT FROM THE CROWD
(Desired Skills) Highlight your modern development expertise through the following experience or skills: Working knowledge of SAS and REXX. Experience with Mainframe Assembler development. Relevant certifications, such as IBM Mainframe Developer Professional or Interskill - Mainframe Application Programmer - COBOL. Solid understanding of relational databases (PostgreSQL, DB2), and SQL. Familiarity with modern development software, tools, and methodologies. Experience working on Agile projects and understanding Agile terminologies. Knowledge of DevOps toolsets (Git/Bitbucket, Docker, Jenkins, SonarQube). At Leidos, we thrive on delivering innovative solutions through the dedication of our diverse and talented people. We empower our teams and contribute to our communities, grounded in our commitment to do the right thing for our customers, our employees, and society. Every role we fill is rewarding when you understand the impact of your work and support those in need. If your passion lies in facilitating transformative services, you belong here. Become part of a supportive team where all members are valued, irrespective of their status. We look forward to welcoming you to the Leidos Family. Are you a US citizen, US resident, or Visa candidate? We urge you to apply and initiate the conversation today! Join us in supporting our SSA contracts based in Woodlawn, Maryland. Come break things (in a good way) and then build them smarter. We are the tech company everyone turns to when faced with unusual challenges. We may not wear capes (for safety reasons), but we creatively tackle high-stakes problems with code, ingenuity, and an unconventional approach. Original Posting:
July 31, 2025 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an expected closing date no earlier than 3 days after the original posting date. Pay Range:
Pay Range $85,150.00 - $153,925.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation. Factors considered in extending an offer include responsibilities, education, experience, skills, and internal equity, among others.