Senior Application Support Engineer - Mainframe

Are you ready to make an impact at DTCC?

Do you want to work on innovative projects, collaborate with a dynamic and supportive team, and receive investment in your professional development? At DTCC, we are at the forefront of innovation in the financial markets. We're committed to helping our employees grow and succeed. We believe that you have the skills and drive to make a real impact. We foster a thriving internal community and are committed to creating a workplace that looks like the world that we serve.

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).

The impact you will have in this role:

Being a member of the Application Support Engineering team you will specialize in maintaining and providing technical support for all applications that are beyond the development stage and are running in the daily operations of the firm. Works closely with development teams, infrastructure partners, and internal / external clients to raise and resolve technical support incidents.

Your Primary Responsibilities:

• Apply ITIL Change, Incident, and Problem Management processes to maintain operational stability.
• Lead Major Incident calls, engage appropriate teams, and drive root cause analysis for critical production issues.
• Troubleshoot and debug complex system components in highly regulated environments spanning on-prem and cloud applications.
• Analyze application designs and provide feedback on gaps or optimization opportunities.
• Participate in Disaster Recovery / Loss of Region events (planned and unplanned), ensuring compliance and evidence collection.
• Contribute to Monthly Service Reviews (MSR) with development partners to review KPIs.
• Collaborate across teams to resolve application issues and provide input during design and development stages.
• Support audit requests by providing documentation and evidence promptly.
• Plan and implement certificate creation/renewals.
• Create, modify, and monitor dashboards to improve observability and proactively detect issues.
• Capture and analyze project requirements, translating them into technical specifications.
• Resolve critical application alerts and production defects, providing business impact analysis.
• Review and update knowledge articles and runbooks with development teams.
• Identify and implement automation opportunities to reduce manual monitoring efforts.
• Execute pre-production/production code deployment plans and vendor application upgrade processes.
• Align risk and control processes into daily responsibilities to mitigate operational risk.

**NOTE: The Primary Responsibilities of this role are not limited to the details above. **

Qualifications:

• Minimum of 6 years of related experience
• Bachelor's degree preferred or equivalent experience

Required Skills

• Hands-on experience with distributed systems (Unix/Linux/Windows).
• Strong SQL/PLSQL and scripting skills (Python, Bash, Shell).
• Familiarity with relational databases (DB2, Oracle, Snowflake).
• Experience with scheduling tools (AutoSys, Control-M).
• Monitoring and observability tools (Splunk, Dynatrace, Grafana).
• Middleware and messaging systems (WebSphere, JBoss, IBM MQ, Kafka).
• Proven ability to lead incident management and root cause analysis.

Preferred Skills

• Mainframe troubleshooting (COBOL, JCL, DB2 Stored Procedures).
• Cloud platforms (AWS, Azure, OpenShift) and modern databases (Postgres, Snowflake).
• ETL tools (Informatica, Talend).

Leadership & Culture

• Superb communication and collaboration skills.
• Ability to mentor and build high-performing teams.
• Commitment to integrity and continuous learning.

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.

About Us

With over 50 years of experience, DTCC is the premier post-trade market infrastructure for the global financial services industry. From 20 locations around the world, DTCC, through its subsidiaries, automates, centralizes, and standardizes the processing of financial transactions, mitigating risk, increasing transparency, enhancing performance and driving efficiency for thousands of broker/dealers, custodian banks and asset managers. Industry owned and governed, the firm innovates purposefully, simplifying the complexities of clearing, settlement, asset servicing, transaction processing, trade reporting and data services across asset classes, bringing enhanced resilience and soundness to existing financial markets while advancing the digital asset ecosystem. In 2024, DTCC's subsidiaries processed securities transactions valued at U.S. $3.7 quadrillion and its depository subsidiary provided custody and asset servicing for securities issues from over 150 countries and territories valued at U.S. $99 trillion. DTCC's Global Trade Repository service, through locally registered, licensed, or approved trade repositories, processes more than 25 billion messages annually. To learn more, please visit us at or connect with us on LinkedIn , X , YouTube , Facebook and Instagram .

DTCC proudly supports Flexible Work Arrangements favoring openness and gives people freedom to do their jobs well, by encouraging diverse opinions and emphasizing teamwork. When you join our team, you'll have an opportunity to make meaningful contributions at a company that is recognized as a thought leader in both the financial services and technology industries. A DTCC career is more than a good way to earn a living. It's the chance to make a difference at a company that's truly one of a kind.

Learn more about Clearance and Settlement by clicking here .

About the Team

Serves as a dedicated technology resource for advancing DTCC's business opportunities and providing industry thought leadership for leveraging new technology. The goal of this new department is to partner internally with IT, our business and regulatory divisions and externally with clients, regulators, and fintech vendors, to help build new platforms and business models to advance DTCC's mission to support the financial markets.