CGI is seeking a Senior Mainframe Systems Engineer to architect, maintain, and optimize mission-critical z/OS environments supporting federal agency enterprise platforms. This senior role oversees mainframe software installation, SMP/E maintenance, middleware operations, and cross-platform integration while ensuring high availability, performance, and system resilience., Lead installation, configuration, and lifecycle management of z/OS and related IBM mainframe subsystems. .Architect and maintain WebSphere for z/OS, mainframe middleware, and associated system components. .Oversee SMP/E software installation, patching, product upgrades, and maintenance strategy. .Perform advanced z/OS performance tuning, capacity planning, and workload management (WLM). .Manage JES2/JES3 operations, RACF security configurations, system exits, and automation routines. .Troubleshoot complex mainframe incidents, diagnose root causes, and implement long-term corrective actions. .Support integration with distributed applications, API gateways, and modernization toolchains. .Produce detailed architectural documentation, system design packages, and operational standards. .Provide technical leadership to junior engineers and collaborate with cross-functional infrastructure teams.

Ability to obtain and maintain Public Trust clearance .Bachelor’s degree +14 years of relevant IT experience .Advanced experience administering IBM z/OS at the system engineering level. .Expertise with WebSphere on z/OS, including installation, configuration, and tuning. .Strong SMP/E knowledge and mainframe software lifecycle management skills. .Deep experience with JCL, TSO/ISPF, RACF, JES2/JES3, and common IBM utilities. .Ability to perform advanced debugging, dump analysis, and system performance monitoring.

Desired qualifications/non-essential skills required: .Experience with mainframe modernization or hybrid integration efforts. .Familiarity with REXX, CLIST, or automation frameworks for mainframe operations. .Experience supporting large federal mainframe environments. .Knowledge of mainframe-to-cloud or API-driven modernization strategies., * Analytical Thinking

• JCL
• Mainframe
• Technical Analysis
• Websphere Application Server

Tuition reimbursement, Paid parental leave, Parental leave, 401(k) matching, Paid time off, Paid holidays 3106 Lord Baltimore Drive, Baltimore, MD 21244

Full job description

U.S. - CGI Federal roles - What we do matters By playing this video you consent to Google/YouTube processing your data and using cookies Learn more., CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit-based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $71,700.00 - $176,300.00.

CGI Federal’s benefits are offered to eligible professionals on their first day of employment to include: .Competitive compensation .Comprehensive insurance options .Matching contributions through the 401(k) plan and the share purchase plan .Paid time off for vacation, holidays, and sick time .Paid parental leave .Learning opportunities and tuition assistance .Wellness and Well-being programs

CGIFederalJob

CGI is in the top 5 largest global IT companies spread across 40 countries with endless opportunities to expand and grow. As a Federal CGI Partner, you have the opportunity to be a shareholder at CGI and join a family of 91,000 CGI Partners strong., Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, youll reach your full potential because

You are invited to be an owner from day 1 as we work together to bring our Dream to life. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction.

Your work creates value. Youll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our teamone of the largest IT and business consulting services firms in the world.