Senior Application Support Engineer – Distributed & 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 are 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.

The Information Technology group delivers secure, reliable technology solutions that enable DTCC to be the trusted infrastructure of the global capital markets. The team delivers high-quality information through activities that include development of essential, building infrastructure capabilities to meet client needs and implementing data standards and governance.

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

As an Senior Associate Application Support Engineer, you will play a key role in supporting mission-critical applications across mainframe and distributed platforms that are essential to everyday business operations.

You will work in a hands-on production support environment focused on system stability, incident resolution, and continuous improvement. This role offers strong exposure to enterprise systems and provides an opportunity to build expertise in application support, root cause analysis, and platform reliability.

Your Primary Responsibilities:

• Analyze application issues and incidents to identify root causes and prevent recurrence
• Provide day-to-day production support for applications across mainframe and distributed environments
• Monitor application dashboards and alerts to proactively identify and mitigate potential issues
• Collaborate with team members to resolve application alerts and escalate when necessary
• Maintain and enhance runbooks, knowledge base, and standard operating procedures
• Support batch processing, job scheduling, and automation, ensuring processes meet expected thresholds
• Execute Disaster Recovery (DR) procedures during planned or unplanned outages and capture required documentation
• Provide input into application design by identifying gaps and improving supportability and reliability
• Perform routine operational activities such as service account maintenance (e.g., password rotations)
• Resolve production defects and support minor enhancements as needed
• Support audit requests by gathering required documentation and evidence
• Follow risk and control processes as part of daily responsibilities and escalate issues appropriately

Qualifications

• Bachelor’s degree preferred or equivalent practical experience
• 6-8 years of experience in application support, production support, or similar role

Talent Needed for Success

• Hands-on experience in application or production support environments
• Experience supporting mainframe applications (required)
• Working knowledge of Unix/Linux and Windows environments
• Working knowledge of Unix/Linux, Windows, Mainframe, and SQL/PLSQL
• Familiarity with SQL and relational databases
• Exposure to monitoring and observability tools
• Strong problem-solving, troubleshooting, and root cause analysis skills
• Experience with incident, problem, and change management processes (ITIL preferred)
• Familiarity with job scheduling and batch processing systems
• Basic understanding of application architecture and development concepts
• Strong communication skills and ability to collaborate across teams
• Ability to work in a fast-paced production support environment with a strong sense of ownership and urgency

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.