Jeff Hennessey
Backend architect: Federal systems + AAA games
Ready for work
Jeff is ready for their next project!
Enterprise Multi-Tenant CRM & ETL Pipeline
Architected microservices CRM handling 1M+ daily API requests across 60 enterprise clients. Built high-performance ETL pipelines for real-time data synchronization. Achieved 45% query improvement and 70% capacity scaling.
Tech: C#, .NET, SQL Server, Python, Microservices
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Enterprise Platform Modernization
Leading .NET 9 migration of federal platform serving 10M+ daily API calls. Consolidated 19 services into 31 microservices. Achieved $400K+ annual savings, 45% query improvement, zero downtime. Managing 10-engineer team.
Tech: C#, .NET 9, Azure, Kubernetes
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AI Powered Data Lifecycle Management (239 chars)
Architected RAG-based system managing petabyte-scale compliance data. Used Python and LangChain for intelligent hot/cold storage tiering. Reduced manual processing 85% with sub-second queries on archived data.
Tech: Python, LangChain, RAG, PostgreSQL, Azure
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Ghostrunner 2 - AAA Game Performance
Led performance optimization for Ghostrunner 2 across PC, PlayStation, and Xbox. Implemented AI-driven asset preloading and shader optimization to reduce player respawn times from 1.5s to 400ms (73% improvement). Built ML-enhanced testing pipelines reducing test time by 40% while improving stability 30%. Shipped on schedule with positive player feedback.
Tech: Unreal Engine, C++, DirectX, Vulkan, Python
https://store.epicgames.com/en-US/p/ghostrunner-2
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