Mainframe Developer

Position Summary

Are you an experienced, passionate pioneer in technology who wants to work in a collaborative environment? As an experienced Mainframe Developer, you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands of travel. The Project Delivery Talent Model is designed for professionals with specialized skills that align to a current client need. Team members focus on delivering services to clients, without additional expectations related to business development or promotion. Their employment is tied to their role on a project, and they are eligible for a benefits package that is competitive for project delivery-focused professionals.

Work you'll do/Responsibilities

• Execute, monitor, and troubleshoot daily and nightly mainframe batch jobs using JCL, ensuring timely completion within service-level windows.
• Provide production support for mainframe applications by triaging incidents, identifying root causes, and resolving issues.
• Maintain and enhance COBOL programs to correct defects, implement small changes, and support business needs.
• Monitor DB2 batch processing, investigate data issues, and restart or rerun failed jobs using scheduling tools such as Control-M, CA7, or equivalent.
• Document runbooks, known issues, and resolution steps; collaborate with application, database, and infrastructure teams to address recurring issues.
• Support critical month-, quarter-, and year-end batch cycles, participate in change and release activities, and provide on-call or off-hours support as needed.

The Team

Join our AI & Engineering team in transforming technology platforms, driving innovation, and helping make a significant impact on our clients' success. You'll work alongside talented professionals reimagining and re-engineering operations and processes that are critical to businesses. Your contributions can help clients improve financial performance, accelerate new digital ventures, and fuel growth through innovation.

AI & Engineering leverages cutting-edge engineering capabilities to build, deploy, and operate integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. These solutions are powered by engineering for business advantage, transforming mission-critical operations. We enable clients to stay ahead with the latest advancements by transforming engineering teams and modernizing technology & data platforms. Our delivery models are tailored to meet each client's unique requirements.

Engineering as a Service provides complete design, implementation, and technology operations, leveraging our core engineering expertise. We transform engineering teams, modernize technology, and deliver complex programs with a product engineering approach. Our flexible delivery models-traditional teams, pools, or pods-are tailored to each client's needs, offering engineering-led advisory, implementation, and operational capabilities to accelerate innovation.

Qualifications

Required

• 3+ years' experience in COBOL, DB2, JCL, and mainframe production support.
• Experience monitoring, troubleshooting, and supporting batch processing in a z/OS environment, including job scheduling and failed-job recovery.
• Experience with ServiceNow for incident and change management, and PagerDuty for alerts and on-call response.
• Bachelor's degree, preferably in Computer Science, Information Technology, Computer Engineering, or related IT discipline; or equivalent experience
• Limited immigration sponsorship may be available
• Ability to travel 10%, on average, based on the work you do and the clients and industries/sectors you serve. This may include overnight travel.

Preferred

• Ability to triage production incidents, perform root cause analysis, and resolve issues within critical batch windows.
• Strong communication and collaboration skills to coordinate with technical and business teams; ability to support off-hours production needs as required.

For individuals assigned and/or hired to work in Pennsylvania, Deloitte is required by law to include a reasonable estimate of the compensation range for this role. This compensation range is specific to Pennsylvania and takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $88,800 to $148,000.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.

Deloitte is committed to providing reasonable accommodations for people with disabilities. If you require a reasonable accommodation to participate in the recruiting process, please direct your inquiries to the Global Call Center (GCC) at USTalentCICInbox@deloitte.com.

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Our people and culture

Our inclusive culture empowers our people to be who they are, contribute their unique perspectives, and make a difference individually and collectively. It enables us to leverage different ways of thinking, ideas, and perspectives, and bring more creativity and innovation to help solve our clients' most complex challenges. This makes Deloitte one of the most rewarding places to work.

Our purpose

Deloitte's purpose is to make an impact that matters for our people, clients, and communities. At Deloitte, purpose is synonymous with how we work every day. It defines who we are. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities. Learn more.

Professional development

From entry-level employees to senior leaders, we believe there's always room to learn. We offer opportunities to build new skills, take on leadership opportunities and connect and grow through mentorship. From on-the-job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their career.

As used in this posting, "Deloitte" means Deloitte Consulting LLP, a subsidiary of Deloitte LLP. Please see https://www.deloitte.com/us/about for a detailed description of the legal structure of Deloitte LLP and its subsidiaries.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law.

Requisition code: 372985

Job ID 372985

Client-provided location(s): Philadelphia, PA

Job ID: Deloitte-372985

Employment Type: OTHER

Posted: 2026-10-29T19:52:21