Senior Application Support Engineer

MainframeMaster; Tampa (FL); On-site; USD 75,000 - 150,000; Full time

Job summary

DTCC is seeking a Senior Application Support Engineer to ensure stability, reliability, and performance of mission-critical applications. You will lead incidents, drive automation, and partner with development, infrastructure, and global teams to improve resilience and observability.

The role emphasizes ongoing runbook creation, production releases, DR readiness, and aligning with security and operational controls across cloud and mainframe environments.

Qualifications

• 6-8+ years of experience in application support or production engineering.
• Bachelor's degree preferred or equivalent experience.
• Strong hands-on experience in Application Production Support with an SRE mindset focused on reliability, observability, production stability, resiliency, and incident prevention.
• Extensive experience supporting Linux and Windows environments, including log analysis, troubleshooting, and performance optimization.
• Strong scripting and automation across Bash, Shell, Python, Ruby, Perl, and JavaScript.
• Hands-on experience with Dynatrace, Splunk, Grafana, and Selenium.
• Deep technical expertise in Oracle, Snowflake, PostgreSQL, and related SQL databases.
• ITSM/operational platforms like ServiceNow and Jira for Incident/Problem/Change management.
• Messaging/Queueing tech such as IBM MQ, Oracle AQ, ActiveMQ, RabbitMQ, Kafka.
• Autosys for job scheduling.
• Cloud/Container tech: OpenShift, AWS (EC2, S3, Lambda, SQS, IAM Roles), RDS Aurora.
• Mainframe familiarity: COBOL, JCL, DB2, CICS, SPUFI, File-AID.
• Security, risk, and controls awareness including certificate and access controls.

Responsibilities

• Lead Application Support Engineer role, partnering with engineering and infrastructure to improve reliability and observability.
• Own incident, problem, and major incident management with post-incident reviews.
• Develop runbooks, knowledge articles, and operational documentation.
• Execute releases, changes, and deployments including vendor upgrades.
• Support DR testing and audit readiness.
• Drive automation to reduce toil and optimize alerting.
• Collaborate with global teams for high availability and operational excellence.
• Embed risk and reliability best practices in daily operations.

Skills

SRE mindset

Linux

Windows

Bash scripting

Python

JavaScript

SQL databases

Oracle

Snowflake

PostgreSQL

Dynatrace

Splunk

Grafana

Incident management

Jira

ServiceNow

Autosys

OpenShift

AWS

Aurora

IBM MQ

Oracle AQ

RabbitMQ

Kafka

CICS

COBOL

DB2

Security

Capital markets

AI concepts

Education

Bachelor's degree

Tools

Dynatrace

Splunk

Grafana

Selenium

ServiceNow

Jira

Autosys

OpenShift

AWS

Aurora

Job description

# Senior Application Support EngineerDTCCFull-timeTampa, FL, United StatesUSD 75,000 - 150,0000 viewsPosted October 9, 2026## Job DescriptionThe impact you will have in this role:As a Senior Application Support Engineer, you will play a critical role in ensuring the stability, reliability, and performance of mission-critical applications at DTCC.This role goes beyond traditional support—focusing on Site Reliability Engineering principles, proactive system improvement, and operational excellence. You will partner closely with development, infrastructure, and global operations teams to enhance system resilience, reduce operational toil, and drive continuous improvement across the platform.Your Primary Responsibilities:Act as a Lead Application Support Engineer with responsibilities, partnering with engineering and infrastructure teams to improve system reliability, resilience, and observabilityLead the resolution of critical production incidents, providing clear impact analysis, root cause identification, and preventive actionsOwn and drive incident, problem, and major incident management, including post-incident reviews and continuous improvementProactively identify reliability risks and implement solutions to prevent recurrence and reduce operational toilDevelop, maintain, and enhance runbooks, knowledge articles, and operational documentationExecute and support release, change, and deployment activities, including production releases and vendor upgradesSupport and participate in Disaster Recovery (DR) testing, execution, and audit readinessDrive automation and alert optimization initiatives to improve efficiency and reduce noiseEmbed risk, control, and reliability best practices into day-to-day operationsCollaborate with global teams to ensure high availability and operational excellence across systems\\*\\*NOTE: The Primary Responsibilities of this role are not limited to the details above. \\*\\*## Requirements & SkillsQualifications:6-8+ years of experience in application support, or production engineeringBachelor's degree preferred or equivalent experienceRequired SkillsTalent Needed for Success• Strong hands-on experience in Application Production Support with SRE mindset focused on reliability, observability, production stability, resiliency, and incident prevention.• Extensive experience supporting Linux and Windows environments, encompassing process inspection, log analysis, advanced troubleshooting, performance diagnostics, and system optimization.• Strong scripting and automation expertise across Bash, Shell Scripting, Python, Ruby, Perl, and JavaScript.• Hands-on experience with enterprise monitoring, observability, and analytics platforms such as Dynatrace, Splunk, Grafana, and Selenium.• Deep technical expertise in SQL databases such as Oracle, Snowflake, PostgreSQL, or similar technologies, with proven ability to perform data analysis, troubleshoot production issues, conduct root cause investigations, and optimize query performance.• Strong experience with ITSM and operational management platforms such as ServiceNow and Jira, supporting Incident, Problem, Change, and Major Incident Management processes.• Hands-on experience supporting enterprise Messaging and Queueing Technologies such as **IBM MQ**, Oracle AQ, ActiveMQ, RabbitMQ, and Kafka.• Strong experience working with enterprise job scheduling platforms, particularly Autosys.• Working knowledge of Cloud and Container Technologies such as OpenShift, AWS (EC2, S3, Lambda, SQS, IAM Roles), Amazon RDS Aurora, PostgreSQL, and cloud-native operational support practices.• Familiarity with **Mainframe** technologies and troubleshooting concepts across **COBOL**, **JCL**, **DB2**, **DB2** Stored Procedures, **CICS**, SPUFI, and File-AID.• Strong understanding of security, risk, and operational controls, including certificate management, password management, access controls, and security best practices.• Exposure to Capital Markets and Financial Services environments with experience supporting mission-critical, high-availability, and highly regulated systems.• Knowledge of Artificial Intelligence concepts and their practical application within Production Support, Operational Engineering, and Service Reliability disciplines.• Demonstrated ability to communicate effectively across all organizational levels with exceptional verbal, written, and stakeholder management skills.• Proven leadership qualities with a strong sense of ownership, accountability, urgency, and operational excellence in fast-paced production environments.• Ability to collaborate effectively with global, geographically distributed teams, driving outcomes across technology, infrastructure, operations, and business functions.• Proactive and continuous improvement mindset with a passion for automation, innovation, operational efficiency, reliability engineering, and reducing operational toil through engineering-led solutions.• Strong analytical, problem-solving, and critical-thinking capabilities with the ability to navigate complex technical challenges, drive root-cause resolution, and deliver sustainable long-term solutions.• Demonstrated ability to thrive in high-pressure environments while maintaining focus, composure, and an unwavering commitment to service availability, customer experience, and operational resilience.## How to ApplyApply directly through the application link above