Senior Lead Software Engineer & Architect, .NET Expert

Blake Henry

Lead Software Engineer Tech Lead

Dallas, TX 346-***-**** ************@*******.*** https://www.linkedin.com/in/blake-henry-9179b158/ Summary

Senior Lead Full Stack Engineer and Software Architect with 10+ years of experience building scalable .NET systems across e-commerce, healthcare, and insurance. Specializes in high-traffic microservices, performance-tuned APIs, SQL optimization, event-driven architecture, and cloud-native delivery on Azure and AWS. Recognized for modernizing legacy platforms, improving system reliability, raising engineering standards, and delivering measurable business impact. Backend-focused with strong front-end capability (React, Angular, MVC, Blazor). Collaborative engineer who mentors teams, leads technical direction, and produces durable, production-ready code. Skills

Backend: C#, ASP.NET Core, Web API, Microservices, EF Core, Dapper, CQRS, Clean Architecture

Frontend: React, Blazor, MVC, TypeScript, Kendo UI

Cloud: Azure (AKS, APIM, Service Bus, Event Hub), AWS Lambda, API Gateway

Database: SQL Server, Azure SQL, Redis, Stored Procedures, DynamoDB

DevOps: Azure DevOps (YAML), Terraform, Docker, Kubernetes

Testing: xUnit, Moq, Integration Tests

Security: OAuth2, OIDC, Key Vault, IAM, mTLS, JWT

Observability: Application Insights, DataDog, CloudWatch

Extra: Agile, Scrum, Kanban

Work Experience

eBay, Inc

Lead Full Stack Engineer Tech Lead 08/2021 - 01/2026 Modernized the company’s global checkout and order-processing platform by redesigning legacy components into .NET 6 microservices on Azure AKS, enabling a faster, more resilient and scalable architecture.

Led an Agile team with 12 engineers in technical discussion and problem solving and mentored 2 junior engineers on best practices in .NET, React and cloud development via pair programming and code review.

Architected the high-traffic checkout and order-orchestration layer in .NET 6 on Azure Kubernetes Service

(AKS), enabling sub-200 ms global transaction processing during peak events.

Built a domain-driven microservices ecosystem using DDD and clean architecture, increasing release velocity by 60 %.

Designed event-driven order workflows with Azure Event Hub, Service Bus and Durable Functions, reducing inconsistent order states by 40 %.

Optimized MS SQL Server and Entity Framework Core (EF Core) with stored procedures, partitioning and compiled queries, reducing checkout database latency by 45 %.

Implemented distributed caching with Redis, off-loading about 70 % of SQL reads for cart, catalog and pricing flows.

Led the redevelopment of the merchant portal into a React and TypeScript SPA, delivering real-time inventory sync, payouts, SLA monitoring and fraud indicators with 22 % fewer support tickets.

Delivered enterprise-grade observability using DataDog and Azure App Insights, lowering MTTR by 55 %.

Built Azure DevOps YAML CI/CD pipelines enabling zero-downtime deployments across multi-region AKS clusters, reducing rollback time from 40 minutes to under 5.

Created reusable Terraform modules for AKS, API Management, Event Hub, Cosmos DB and Redis, enabling 15-minute environment provisioning.

Designed multi-region active-active deployment architecture with Azure Front Door, achieving 99.99 % global uptime.

Strengthened platform security with OAuth2/OIDC, mTLS, Key Vault secret rotation and APIM policies, passing PCI audits with zero critical findings.

Integrated SonarCloud for better code quality and automated unit testing processes (TDD) across critical microservices with xUnit and Moq, reaching a personal milestone of authoring and testing 300+ individual test cases.

Built real-time fraud insight pipeline using Event Hub to Cosmos DB change feed, enabling second-level anomaly detection across millions of daily transactions.

Co-authored the multi-year technical roadmap for checkout, payments, seller APIs and global scale initiatives, aligning engineering vision with business expansion. Baylor Scott & White Health

Senior Software Engineer Cloud Engineer 03/2018 - 07/2021 Served on the core platform team supporting patient scheduling, care-coordination, eligibility and provider-data systems, mission-critical workflows used by hospital networks, call-center teams and outpatient clinics. Modernized a legacy WebForms-based system into a modern microservices platform, improving clinical throughput, data accuracy and operational efficiency.

Migrated legacy WebForms scheduling and intake workflows into ASP.NET MVC and Angular 11, improving UI stability and reducing call-center rendering issues.

Rebuilt backend scheduling and intake services as .NET Core microservices on AWS Lambda, reducing bottlenecks and appointment delays during high-volume periods.

Implemented FHIR-compliant patient/provider synchronization using API Gateway and DynamoDB, eliminating manual reconciliation and ensuring accurate EHR integrations.

Developed real-time clinical event pipelines with AWS Kinesis and Lambda, reducing data propagation latency from hours to under 30 seconds.

Enhanced provider search and eligibility logic via SQL stored-procedures, index optimization and DynamoDB caching, accelerating lookup performance for intake teams.

Integrated centralized logging and trace correlation using Serilog, and CloudWatch enabling rapid diagnosis of scheduling issues and reducing MTTR by 50 %.

Built comprehensive unit, integration and workflow test suites using nUnit, Cypress, Moq and Lambda test harnesses, reducing production defects by 35 %.

Introduced Blazor components to replace high-complexity WebForms widgets in clinician portals, reducing front-end technical debt and improving maintainability.

Automated complex multi-step clinical workflows (referrals, insurance validation, provider updates) using AWS Step Functions, ensuring traceable and auditable processing.

Strengthened HIPAA-grade security with IAM least-privilege, KMS encryption, OIDC/SSO, structured audit logging and by mentoring engineers across MVC, Blazor and .NET Core to raise platform quality. Movitus (former AgileThought, Inc)

Software Engineer 09/2015 - 02/2018

Developed robust backend modules for policy, billing and claims workflows using ASP.NET MVC, Kendo UI, Soap and ADO.NET.

Optimized SQL Server databases via stored procedures, indexing and parameterized queries, reducing policy lookup and claims retrieval latency significantly.

Implemented data-access layers using Dapper and repository patterns, enhancing performance and maintainability of underwriting and rating services.

Created admin and agent-facing front-end screens using MVC views, jQuery, Knockout.js and Kendo UI components (grids, forms, filters).

Implemented LINQ and ADO.NET for seamless database communication.

Improved system reliability by strengthening API integrations with carrier systems, enhancing error handling and implementing structured logging across endpoints.

Built unit and integration tests for rating, quoting and eligibility modules to ensure quality and reduce regression failures.

Debugged 30k+ lines of the code for handling the exceptions and upgraded data access layer.

Participated in performance-tuning sprints like query optimization, caching reference data and reducing redundant operations to stabilize monthly billing spikes. Education

Bachelor of Science (B.S.), Computer Science 2012 - 2015 The University of Texas at Austin

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