Principal Mainframe Engineer

Pay and Benefits Competitive compensation, including base pay and annual incentive Comprehensive health and life insurance and well‑being benefits, based on location Pension / Retirement benefits Paid Time Off and Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well‑being. DTCC offers a flexible/hybrid model of 3 days onsite and 2 days remote (onsite Tuesdays, Wednesdays and a third day unique to each team or employee). Impact you will have in this role Being a member of the IT CSS-WRAFT Delivery team, you will be responsible for planning, documenting technical requirements, designing, developing, and testing all software systems and applications for the firm. You will work closely with architects, product managers, project managers, and end‑users on the development and improvement of existing software systems and applications, proposing and recommending solutions that tackle sophisticated business problems. Your Primary Responsibilities Act as a technical expert on one or more applications used by DTCC Work with the Business System Analyst to ensure designs satisfy functional requirements Partner with Infrastructure to identify and deploy optimal hosting environments Tune application performance to eliminate and reduce issues Research and evaluate technical solutions consistent with DTCC technology standards Apply different software development methodologies dependent on project needs Contribute expertise to the design of components or individual programs, and participate in the construction and functional testing Support development teams, testing, troubleshooting, and production support Create applications and construct unit test cases that ensure compliance with functional and non‑functional requirements Work with peers to mature ways of working, continuous integration, and continuous delivery Align risk and control processes into day‑to‑day responsibilities to supervise and mitigate risk; calls out concerns appropriately Mentor/coach junior developers in code development and production support Build application knowledge along with system knowledge to contribute effectively in development Reverse engineer to troubleshoot or develop new enhancements NOTE: The Primary Responsibilities of this role are not limited to the details above. Qualifications Minimum of 10 years of related experience Bachelor’s degree preferred and/or equivalent experience Talents Needed for Success Develop and maintain COBOL programs for batch and online processing in CICS regions. Design and optimize DB2 SQL queries, stored procedures, and ensure compliance with DB2 standards and performance tuning guidelines. Implement IBM MQ messaging solutions for inter‑system communication, ensuring secure and reliable message delivery. Perform JCL scripting for job scheduling and execution; troubleshoot abends and optimize batch performance. Ensure alignment to SDLC and release management processes, including change package creation and migration to production environments. Collaborate in Agile squads, provide estimates, participate in sprint planning, and deliver incremental value. Support production environments, including incident triage, root cause analysis, and resolution. Familiarity in using an enterprise job scheduler. Strong curiosity about using AI tools to improve efficiency and deliver high‑quality software applications faster. Fosters a culture where integrity and clarity are expected. Knows the latest on changes in their own specialist area and seeks out learning opportunities to keep knowledge up‑to‑date. Invests effort to individually mentor others. Builds collaborative teams across the organization. Communicates openly keeping everyone advised. Experience in modernization projects is a plus. The salary range is indicative for roles at the same level within DTCC across all US locations. Actual salary is determined based on the role, location, individual experience, skills, and other considerations. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. #J-18808-Ljbffr DTCC