Senior Application Support Engineer – Distributed & Mainframe

DTCC • Coppell, TX

5d • $75,000 - $150,000 • Hybrid

About The Position

As a Senior Associate Application Support Engineer, you will support mission-critical applications across mainframe and distributed platforms that are essential to everyday business operations. This hands-on production support role focuses on system stability, incident resolution, and continuous improvement, offering opportunities to develop expertise in application support, root cause analysis, and platform reliability.

Requirements

• 6–8 years of experience in application support, production support, or a similar role.
• Hands-on experience in application or production support environments.
• Experience supporting mainframe applications (required).
• Working knowledge of Unix/Linux, Windows, mainframe, and SQL/PLSQL environments.
• 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.
• 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.

Nice To Haves

• Bachelor’s degree or equivalent practical experience.
• ITIL experience or knowledge.

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 bases, 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, including 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.

Benefits

• Competitive compensation, including base pay and annual incentive.
• Comprehensive health and life insurance and well-being benefits, based on location.
• Pension and retirement benefits.
• Paid time off, personal/family care, and other leaves of absence.
• Flexible/hybrid work model with three days onsite and two days remote.
• Investment in professional development.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior