IT Sr Manager, Applications Engineering - Legacy Systems

## IT Sr Manager, Applications Engineering - Legacy Systems Apply locations:
Tulsa, OKtime type:
Full time posted on:
Posted Todaytime left to apply:
End Date:
July 31, 2026 (30+ days left to apply) job requisition :
JR102600
*
* Job Description:

** The IT Integrations Manager is responsible for leading the design, delivery, and modernization of enterprise integrations across both legacy (mainframe) systems and modern application platforms.
This role will initially oversee a team supporting mainframe-based integrations, ensuring stability, reliability, and continuity of business-critical data flows. In parallel, the role will transition into leading a modern enterprise integrations and .NET development team, driving API-based integrations, data platform connectivity, and reporting/analytics enablement (e.g., Power BI).
This leader will play a key role in bridging legacy and future-state architectures, enabling the organization’s transition toward a scalable, cloud-enabled integration and data ecosystem.
** Key Responsibilities
**** 1. Integration Strategy & Architecture
*** Define and execute the enterprise integration strategy spanning legacy and modern platforms
* Establish integration patterns (APIs, messaging, ETL, event-driven) and standards
* Partner with Data & Analytics leadership to align integrations with data lake and reporting initiatives
** 2. Legacy System Leadership (Interim)
*** Lead the team supporting
** mainframe/legacy integrations
** and interfaces
* Ensure stability, performance, and reliability of existing integrations
* Document and rationalize current-state integrations and dependencies
* Develop a roadmap for
** coexistence, simplification, and eventual decommissioning
** of legacy systems
** 3. Modern Integration & .NET Leadership (Future State)
*** Transition into leadership of a **.NET-based integrations and development team
*** Oversee development of APIs, services, and integration components (.NET, C#, Web APIs)
* Drive modernization toward reusable, scalable integration services
* Align development efforts with enterprise architecture and cloud platform (Azure preferred)
** 4. Data Platform & Reporting Integration
*** Enable integration with enterprise data platforms (data lake, Azure SQL, etc.)
* Support ingestion pipelines for analytics and reporting use cases
* Collaborate with Power BI and analytics teams to deliver reliable, governed data flows
* Improve data quality, consistency, and governance across systems
** 5. Integration Delivery & Platform Management
*** Oversee APIs, middleware, ETL pipelines, and system interfaces
* Manage integration lifecycle (design, build, deploy, monitor, optimize)
* Ensure performance, scalability, and observability of integrations
* Support SQL Server and data integration performance tuning
** 6. Team Leadership & Transition Management
** Lead a hybrid team of:
* Legacy/mainframe integration resources (short-term)
* Modern integration engineers and .NET developers (long-term)
* Drive transition planning from legacy skillsets to modern integration capabilities
* Manage Agile delivery, backlog prioritization, and capacity planning
** 7. Governance, Security & Compliance
*** Establish integration governance, standards, and documentation practices
* Ensure secure data movement and adherence to enterprise policies
* Implement monitoring, logging, and auditing for integrations
** 8. Stakeholder & Cross-Functional Collaboration
** Partner with:  
* Enterprise Applications
* Data & Analytics teams
* Business stakeholders
* External vendors/partners
* Act as the primary IT leader for integration-related initiatives and decisions
** Required Qualifications
*** 10+ years in IT with strong experience in
** systems integration and application development
*** Experience supporting
** legacy/mainframe systems and integrations
*** Experience with modern integration technologies (APIs, ETL, middleware)
* Strong background in **.NET development (C#, ASP.NET, Web APIs)
*** Strong experience with SQL Server, ETL and data integration concepts
* Experience leading technical teams across both legacy and modern environments
* Familiarity with cloud platforms (Azure preferred)
** Preferred Qualifications
*** Experience integrating ERP platforms (SAP, D365, etc.)
* Experience supporting data lake or analytics ecosystems
* Experience with Power BI or enterprise reporting platforms
* Experience with integration platform tools (iPaaS, messaging frameworks)
** Key Success Metrics
*** Stability and reliability of legacy integrations during transition
* Reduction in legacy integration complexity over time
* Successful migration to modern API-based architecture
* Improved availability and quality of data for reporting/analytics
* Delivery velocity and quality of .NET integration services
* Alignment between application, integration, and data strategies
** Position Impact
*** Ensures continuity of critical legacy operations
* Enables transition to a modern, scalable integration architecture
* Acts as a key bridge between
** enterprise…