Richard Cullen

Senior Software Architect with 30+ years of experience designing distributed systems, modernizing legacy platforms, and leading engineering teams across healthcare, industrial automation, finance, and SaaS. Deep expertise in microservices, workflow‑driven architectures, cloud platforms, and full‑stack development. Known for driving architectural vision, decomposing complex domains into scalable services, and delivering mission‑critical systems with high reliability and operational resilience.

Senior Software Architect

Leidos‑QTC Health Services | Jan 2020 – Present

Lead Architect for the Reserve Health Readiness Program, a nationwide platform supporting medical readiness for U.S. Armed Forces Reserve personnel.

Designed a microservice‑based architecture replacing tightly coupled monoliths deployed on‑prem.

Built a hybrid deployment model enabling services to run on‑prem or in the cloud.

Decomposed core business capabilities into independent microservices orchestrated via workflow automation.

Enabled modular, configurable offerings and rapid onboarding of new clients.

Partnered with business, SMEs, and program management to define requirements and modernization strategies.

Provided architectural governance, design reviews, and technical leadership across multiple teams.

Senior Software Developer

Leidos‑QTC Health Services | Jun 2019 – Jan 2020

Developed core components for case management, scheduling, and workflow/process management using .NET MVC, C#, JavaScript, SQL Server.

Championed modular design, restructuring capabilities into independent modules.

Identified cross‑team coordination gaps and stepped into an informal leadership role.

Contributed to delivering the initial system on time, supporting a successful multi‑year program launch.

Promoted to Senior Software Architect for demonstrated leadership.

Senior Software Engineer

Cherrywood Mortgage, LLC | Jul 2019 – Mar 2020

Designed and delivered two major software solutions using C#, ASP.NET, HTML5, JavaScript, AJAX, JSON, SQL Server, XML, Web Services.

Implemented a version control and release pipeline improving deployment stability and speed.

Led a team of three developers building a customer‑facing portal; conducted daily stand‑ups and mentored team members.

Built web services integrating the portal with internal systems; enhanced existing ASP.NET applications.

Worked directly with customers to resolve issues and improve user experience.

Co‑Owner / Full‑Stack SaaS Developer

Cullen, Malousis and Fowlkes | Jul 2018 – Jul 2019

Designed and built a cloud‑based business process and reservation system integrated with Weebly‑based client websites.

Developed secure Azure‑hosted web services using C#, OAuth 2.0, SendGrid, Authorize.NET, Entity Framework, LINQ, Azure Storage APIs.

Configured Azure SQL, Web Apps, Storage, SSL, and scheduled services.

Managed vendor selection for cloud hosting and payment processing; handled DNS and email configuration.

Delivered training, onboarding, and technical demos during the sales process.

Senior Software Developer in Test

Schneider Electric | Feb 2014 – Jul 2018

Automated Test System Development:

Built a C#‑based automated testing framework integrated with Visual Studio Ultimate.

Reduced regression testing time from 3 months to under 2 weeks through automation.

Enabled nightly automated test execution as part of a CI pipeline.

Automated Test Development:

Member of Agile team developing new features for the Wonderware (Aveva) System Platform.

Created automated and manual functional/usability tests; contributed to architecture and design discussions.

Developed automated test cases in C# for execution within Visual Studio.

Contributed to major feature releases in 2016 and subsequent semi‑annual updates.

Bachelor of Engineering (BEng), Electrical & Electronic Engineering with Computer Studies
Brunel University | London, United Kingdom | 1993