IT Sr Manager, Applications Engineering - Legacy Systems
AAON, Inc. · Tulsa, OK · 3 wk ago
EngineeringFull-time
Key Responsibilities
- 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
- 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
- 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)
- 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
- 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
- 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
- Establish integration governance, standards, and documentation practices
- Ensure secure data movement and adherence to enterprise policies
- Implement monitoring, logging, and auditing for integrations
- 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)