Senior Software Engineer - Cloud-Native, Microservices Expert
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DYLAN WILLIAMS
Senior Software Engineer
786-***-**** www.linkedin.com/in/dwork-williams-4a5e25 Houston, TX Summary
As a Senior Software Engineer with 9+ years of experience, I specialize in building scalable, cloud-native solutions for enterprise systems across FinTech, Healthcare, and HR domains. My expertise lies in designing event-driven architectures, microservices, and AI-powered platforms using modern technologies like Azure/AWS (AKS, ECS, Functions/Lambda), .NET Core, Node.js, Angular/React, and more. I bring a strong focus on clean architecture, performance optimization, and DevOps excellence—championing Blue-Green and Canary deployments and implementing CI/CD pipelines with Azure DevOps, GitHub Actions, and Terraform. Beyond hands-on coding, I’ve mentored developers, and driven architectural decisions to ensure scalable, reliable software delivery. Passionate about applied AI and cloud innovation, I thrive on solving complex problems and enabling teams to do their best work through smart technology choices.
Skills
Backend C# .NET ASP.NET Core Entity Framework MVC Web API WPF ADO.NET SignalR Node.js Java Frontend JavaScript TypeScript Angular React Vue.js Bootstrap Kendo UI Blazor jQuery Database MS SQL Sever PostgreSQL GraphQL Azure Cosmos DB MongoDB Redis S3 Cloud Azure Functions Azure DevOps Azure App Service AKS AWS Lamabda Kubernetes CI/CD Docker Terraform Testing NUnit xUnit Jest Cypress Moq
Other Jira Confluence Agile/Scrum/SAFe
Experience
Greendot Coporation Remote
Senior Lead Software Engineer 02/2023 - 09/2025
Led full-stack development of secure, high-performance .NET Core 8 / Angular 15 stored-and-forward system, automating ACH and merchant onboarding workflows and integrating with TransUnion and major credit bureaus via OAuth2/token-based APIs, cutting transaction times by 60%.
Architected and deployed RESTful microservices on Azure Kubernetes Service (AKS) with Docker, YARP API Gateway, and MassTransit with Azure Service Bus, powering event-driven ACH settlement, card activation, and fraud notification pipelines. Built Azure Functions (HTTP Triggers) in C# 10 (.NET 8) to power fast, metadata-driven document retrieval and digital statement access within Provider and Merchant Portals, improving search responsiveness and user experience by 40% while reducing SQL query load through in-memory caching and metadata tagging. Designed a cloud-ready ETL and data-warehouse pipelines with Azure Synapse, SQL Server, and Snowflake, automating data ingestion from ACH, merchant, and compliance services, and delivering sub-second query performance for millions of ACH transactions.
Modernized a legacy monolithic ACH system into modular microservices aligned with Domain-Driven Design (DDD) and CQRS patterns, improving maintainability, observability, and deployment agility. Built a C# batch application that integrates with SonarQube to automatically detect code smells and bugs, assigning them to the appropriate owners in Azure DevOps (YAML) with gated CI/CD, and automated AKS deployments. Employed Azure API Management to configure network traffic to microservices, and incorporated Azure Key Vault and Azure Managed Identities to store sensitive values, such as connection strings, credentials, and API keys. Used AD groups for authentication of users and consumed external RESTful web services based on user's roles and migrated resources across 10+ Azure subscriptions, including Cosmos DB, Storage, and SQL, Service Bus, into a secured tenant with least- privilege RBAC and cross-tenant access.
Deploy event-driven workflows using Azure Event Hub and Dockerized microservices to support transaction event processing, instant merchant status updates, credit approvals, and fraud detection alerts. Created unit and integration tests using Jasmine/Karma for Angular and NUnit for C#, and implemented Grafana and DataDog for system monitoring and reliability.
Built AI-assisted development workflows using GitHub Copilot and OpenAI APIs, streamlining code completion, documentation generation, and unit test scaffolding.
Mentored engineers and collaborated cross-functionally with product, UX, and QA to deliver compliant, scalable fintech solutions meeting 99.99% uptime and audit readiness.
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Experience
Beezwax Datatools, Inc Cupertino, CA
Senior Software Developer 08/2021 - 02/2023
Developed a multi-state payroall and benefits portal for healthcare customers using ASP.NET Core MVC, Entity Framework (DB First approach), LINQ, SQL Server, and Azure, improving claim submission efficiency by 60%. Built Azure Functions (C#) to integrate with Salesforce web API hooks for synchronizing employee licensing and compliance data across HR and payroll systems, enabling real-time validation and onboarding workflows. Delivered responsive, data-driven UIs using Kendo UI for Angular, implementing UI components like grids, charts, and date pickers to enhance user experience and performance.
Refactored Angular 14 components into reusable templates with custom directives, interceptors, and named pipes, improving code maintainability and front-end performance across payroll and employee dashboards. Designed GraphQL APIs with HotChocolate (.NET Core) to optimize data retrieval for clinicians and staff, reducing payload size and query latency by up to 50%.
Integrated and automated package management by integrating NuGet and NPM feeds into Azure DevOps CI/CD pipelines, enabling reproducible builds and cutting deployment failures by 35%. Developed a custom Azure AD B2C environment for secure user authentication, integrated into Angular applications and middleware for JWT-protected APIs, ensuring robust security across front-end and API layers. Design UI automation framework using C#, Selenium WebDriver, and SpecFlow, supporting QA engineers and mantaining 2000+ automated test cases across core HR workflows.
Introduced KQL to analyze Azure Application Insights logs (1TB+), enabling root-cause analysis of payroll job failures. Performed API and UI performance profiling with Postman and Chrome DevTools, identifying bottlenecks and optimizing endpoints to reduce response latency by 300 ms on high-volume HR transactions. Capacity St Louis, MO
Application Development Team Lead 03/2019 - 07/2021 Turned out 2 web applications using .NET MVC, MS SQL Server, React, and AWS, supporting patient intake, billing, and medical record workflows across multiple states and healthcare facilities. Modernized legacy WPF modules into ASP.NET MVC and React micro-frontends, reducing maintenace overhead and cutting critical production bugs by 15% through Selenium and NUnit automation. Developed micro-frontend architecture for the Patient Record Management System (PRMS) using React and Webpack Module Federation, modularizing features like patient onboarding, charting, and scheduling. Designed and implemented a GraphQL API in .NET 4.8 to support dynamic employee and timesheet queries, reducing over-fetching and improving data transfer efficiency by 50% compared to traditional REST endpoints. Orchestrated event-driven communication through MuleSoft and Kafka, ensuring reliable cross-system messaging for lab results, claims, and care updates.
Migrated 100K+ medical file BLOBs from on-prem databases to AWS S3, following HIPAA security standards and improving system load performance by 70%.
Employed AWS cloud technologies including EKS, CloudFront, CloudFormation, CloudWatch, and DynamoDB to boost app performance and scalability for thousands of users Zoic Labs Culver City, CA
Software Developer 06/2016 - 02/2019
Architected sophisticated backend infrastructures utilizing advanced concepts of ASP.NET MVC, achieving a remarkable 40% increase in data retrieval efficiency while maintaining flawless integration across diverse application environments. Created a data-driven application with Kendo UI Grid, empowering over 100,000 users to manage and manipulate large datasets through advanced features like sorting, filtering, and pagination. Transformed a real-time application using ASP.NET and SignalR, resulting in a 40% increase in user engagement and a 25% reduction in server load.
Employed Java, Spring, Servlets, WebLogic, and JSP within the J2EE architecture to create robust and scalable applications, contributing to a 10% improvement in application performance. Deep understanding of SDLC processes, spanning requirements/issue management, defect tracking, source control, build and test automation, and release management.
Managed the migration of a legacy application to Azure, leveraging Azure Virtual Machines and Azure Site Recovery to ensure a smooth transition and minimize downtime.
Education
Southern Illinois University Edwardsville
Bachelor's Degree, Computer Science 2012 - 2016
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