Alexander David Johnson

Software Architect @loanDepot

Irvine, CA, US

I specialize in developing scalable architectures that enhance operational agility and ensure cyber resilience. My expertise encompasses AI, cloud, & software solutions, achieving significant cost reductions and technological advancements.Software Architect 2020Company wide Artificial Intelligence, Machine Learning, Cloud, Micro Fullstack ArchitectureLead Engineer 2019Point of SaleSenior Software Engineer 2017OmnichannelDeployed & managed a broad array of Azure resources including OpenAI, CosmosDB, Storage, Active Directory (Entra & B2C), API Management, SQL, Function Apps, Service Bus, SignalR, Azure AI, Azure Kubernetes and Azure CDN to optimize data storage, enhance security, streamline API integration, & improve content delivery.Designed and developed event-driven, multi-agent RAG systems & AI-driven applications using Machine Learning libraries and Azure AI services like Open AI, Vision, Search, Document Intelligence, Language & Speech, strategically enhancing business operations and customer service.Designed and deployed over 20 microservices using Kubernetes for container orchestration, enhancing system scalability and reliability.Engineered solutions utilizing Azure Service Bus and SignalR for seamless communication between microservices, boosting real-time feature responsiveness and scalability.Led training sessions in AI, microservices, & cloud solutions, and co-organized a successful hackathon promoting practical skill application and innovation.Spearheaded the design of resilient systems that maintained critical availability during cybersecurity incidents, demonstrating our robust infrastructure.Implemented a robust front-end architecture with micro front ends & web components, reducing redundancy and cutting front end related infrastructure costs by over 90%.Created ServiceNow, Genesis, Dynamics, Sitecore, Kentico, Azure DevOps & vTwilio Integrations.Developed common reusable CI/CD pipelines & infrastructure-as-code modules