Senior .NET Full Stack Engineer & Tech Lead

Isa Michael

Senior .NET Full Stack Engineer C#, .NET Core, Angular, Azure

Miami, FL, United States 321-***-**** ********@*****.*** https://isa-dennis.vercel.app/ Skills

- C#, Python, JavaScript, TypeScript, VB.NET

- ASP.NET, .NET Core WEB API, Spring, Spring Boot, LLM

- Angular, React, Vue.js, Blazor, Razor, Kendo UI, SignalR, Dynamics 365

- MS SQL Server, Azure SQL, Oracle PL/SQL, EF Core, SSIS/ETL, PostgreSQL, Costmos DB, Dapper, LINQ

- xUnit, NUnit, Jest, Cypress, Jasmin, Serilog

- Azure, AWS, GCP, Azure DevOps, Github, Jenkins, Gitlab, Docker, Terraform, Azure AD Work Experience

Senior Software Engineer, Tech Lead .NET Core, Angular, Azure Oracle

Jun 2023 – Aug 2025 Remote

Contributed as a senior engineer and tech lead within Oracle’s financial services delivery team, focused on modernizing a global banking client’s digital domain (customer onboarding, payments, fraud prevention). Enabled the client to move from legacy platforms toward Azure based, .NET Core microservices-driven banking solutions.

· Led the conversion of a monolithic Copay banking app into .NET Core 7 microservices on Azure Kubernetes Service using bounded contexts (Onboarding, Payments, Fraud), Azure API Management, Azure Service Bus for asnyc messaging, and the Outbox pattern, - cutting release cycle from months to weeks

· Delivered a white-label Copay Digital Bank Portal on Angular 15 with measurable UX gains, lazy loading/code- splitting, sever-driven pagination, debounced search, and edge caching via Azure CDN

· Built an Angular + SingalR workflow for lender bulk files; chunked, resumable uploads (Azure Blob Storage pre- signed URLs), real-time progress/errors, and parallelized policy-match lookups - replacing manual process and lifting throughput to 120+ files/hour

· Replaced SOAP endpoints with REST/gPRC facades via a strangler-fig approach, integrating onboarding, KYC validation, and payment services and retired 40% legacy modules without disrupting banking operations

· Engineered SQL Server with optimized stored procedures, triggers, and event driven workflows to process 1.3 million of daily transactions with sub-second latency while fraud monitoring, auditing, and regulatory reporting

· Secured digital onboarding and payments microservices by implementing RBAC on ASP.NET Core Zero + Azure AD and centralizing OIDC/OAuth 2.0 token issuance with an IdentityServer4 STS, enabling SSO, tenant-scoped access, and audited permissions for 10,000+ users with zero breaches

· Implemented Azure SQL Database for SQL Server (Multi-AZ, synchronous) with automatic failover and designed ETL pipeline with SSIS, optimizing T-SQL and stored procedures using EF Core 7

· Automated Azure API Management deployment with Terraform and Azure DevOps, optimizing Function Apps mapping with YAML and ARM templates, cutting deployment time by 40%

· Wrote automated unit & integration testing using xUnit and Moq with over 80% coverage on critical microservices, ensuring early defect detection and protecting financial workflows from regressions - saving hundres of QA hours

· Participated in investigating Model Context Protocol (MCP) servers to develop chat-based natural language interfaces that empower QA and BA teams through the integration of Large Language Models (LLMs) with C# in order to keep up with AI assisted development productivity of developers using agent mode in LLM’s

· Integrated salesforce (REST/webhooks) for case routing and customer notifications; piloted Python/.NET Core anomaly scoring on transaction metadata to flag likely false positives

· Established comprehensive logging and monitoring solutions using Serilog and Azure Application Insights, making it easier to track and troubleshoot issues in Copay application

· Conducted code reviews, mentored 3 juniors, and ran Scrum ceremonies (planning, reviews, retros, etc) for a 7 person team to keep sprints on schedule

Senior Software Engineer C#, ASP.NET, React, AWS CareMax Inc

Jul 2021 – May 2023 Miami, FL

Engineered CareMax’s value-based care integration platform, which connected facilities, providers, and external partners through secure, real-time data exchange. Delivered HIPAA-compliant systems that supported facility onboarding, population health management, and regulatory reporting, helping CareMax expand its care network and improve patient outcomes.

· Built the Value-Based Care Integration Platform powering facility/provider onboarding, HL7/EDI interoperability, care-coordination alerts, and CMS/HIPAA reporting for multi-site operations

· Replaced a VM-based HL7 middleware with a .NET microservice using EDI Fabric, enabling real-time ingestion of 80+ HL7 message types from external providers, cutting message latency from hours to minutes

· Optimized system performance by migrating from MongoDB+Redis caching to Amazon RDS for SQL Server with advanced indexing/partitioning, ensuring reliable and performant access to patient encounter, claims, and risk- adjustment data used for CareMax's population health analytics

· Delivered cloud-native microservices with YARP API gateway, REST APIs; integrations to Dynamics 365

(Dataverse/REST) and third-party vendors, secured with Amazon Cognito (OICD/OAuth 2.0) for identity and SSO

· Delivered provider-facing health dashboards in React, Vue.js (plus Blazor modules) for real-time integration status, error drill-downs, and self-service reprocessing; shortened facility onboarding by 40%

· Introduced A/B and canary releases via AWS AppConfig feature flags and YARP weighted routing (5–10% rollout) to validate UX/workflow changes; increased task completion rate by 18% without broad risk

· Authored reusable Terraform modules/templates (EKS namespaces, SQS/SNS topics/subscriptions, Secrets Manager, CloudWatch, IAM roles, RBAC, Docker), enabling new microservices to go live in less than 1 hour

· Reduced security risk and audit effort under HIPAA with SSO, least-privilege IAM, secure token-protected APIs, Secrets Manager for credentials, automated checks, and end-to-end audit trails

· Developed CI/CD pipelines in concourse to automate deployment for dev and higher environments using Docker build containers and integrated SonarQube into the CI/CD pipeline for Continuous code inspection of Code Quality, Coverage and vulnerabilities

· Mentored engineers on microservices, test design, and IaC; created shared libraries and coding standards that reduced duplicate code by 25% and improved review throughput Software Developer .NET Backend Engineer

HealthEquity

Oct 2016 – Jun 2021 Draper, UT

· Led all development, and enhancement efforts for the HealthEquity Access web application, built using C#, jQuery, JavaScript, and React on the front end, with a backend of WCF Services, .NET Web APIs, Classic ASP, and MS SQL

· Developed and tuned Oracle PL/SQL objects (Stored Procedures, Functions, Jobs, Packages, Views) and SQL queries improving performance by 5% and usability of the backend processes

· Enhanced security and scalability of the platform by implementing API versioning, authentication (OAuth 2.0), and rate limiting using middleware and frameworks like Swagger/OpenAPI to meet compliance and requirements

· Added OAuth 2 authentication on React application to communicate with .NET Web API using Azure AD

· Delivered Optimizely CMS and patient enrollment microservices—RabbitMQ for events, Elasticsearch for search, SQL Server/EF for persistence—while developing and optimizing Azure SQL/Oracle PL/SQL and ETL pipelines to stabilize catalog/order data and speed reporting

· Leveraged AWS Step Functions to implement advanced features, including API gateways, custom connectors, and AWS Lambda integration, while deploying containerized applications on Amazon ECS and managing ECS clusters

· Designed robust SSAS cubes, SSRS reports, and Power BI dashboards using advanced DAX functions and aggregations; used SSIS for data integration workflows

· Worked with both TFS and VSS for source control and handled WCF, WPF, and Web application deployments, ensuring smooth and timely releases across environments Education

· Georgia State University (2013 – 2017) Bachelor’s Degree

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