Mark Cordell
Compyl
New York
18
years of professional experience
Seasoned Full Stack .NET Developer with 15+ years of experience in modernizing web applications. Expert in leading legacy transformations and delivering scalable .NET solutions. Collaborates effectively with cross-functional teams to implement impactful features while enhancing development speed and minimizing technical debt.
Work History
Full Stack Developer
4 Years- Owned the design and development of Complys information security and compliance automation platform, delivering production features across the stack.
- Developed scalable C# and Blazor Server features in Azure; implemented Azure DevOps CI/CD pipelines for automated builds.
- Implemented T-SQL and EF Core migrations, built API-driven integrations, and optimized relational database schemas to support continuous GRC data ingestion.
- Engineered a conversational AI assistant that used Azure AI Search to retrieve and index markdown documentation directly from Azure Blob Storage.
- Spearheaded the migration to MudBlazor that resulted in reduced development time, ensured UI consistency, and eliminated the reliance on JavaScript.
- Optimized stack by upgrading and consolidating 90+ third-party libraries, eliminating redundancies and reducing technical debt.
- Executed root-cause analysis on critical defects, cutting resolution times from 48 to 24 hours.
- Integrated GitHub Copilot and wrote MOQ/MSTest unit tests, cutting cycle times by 35% and reducing post-release bugs.
- Translated Figma UI/UX designs into functional, user-focused interfaces and converted existing CSS into customized SCSS using mixins and nesting.
- Collaborated with product and design teams to launch user-facing features, contributing to a 20% increase in MAUs and adoption.
- Mentored junior developers through pair programming and structured pull-request reviews.
Lead Software Engineer
9 Years 3 Months- Developed and maintained several prototype and production .NET applications used to support contracts with DHS S&T and FEMA.
- Designed responsive interfaces using ASP.NET MVC, Angular/Typescript, Bootstrap, Telerik, HTML5, and jQuery.
- Built and maintained RESTful APIs conforming to NIEM guidelines, demonstrating reliable multi-system interoperability across production and prototype applications.
- Modernized legacy client-server applications by migrating to ASP.NET Core MVC, implementing the Model-View-Controller design pattern for improved maintainability and scalability.
- Developed 13 scalable microservices using ASP.NET Core and C# that decoupled a monolithic backend into independent domains resulting in accelerated feature delivery.
- Developed SQL queries, stored procedures, triggers, views, and constraints in SQL Server and MySQL.
- Engineered prototype solutions using the latest .NET technologies in collaboration with MIT Lincoln Labs and Sandia National Labs that supported DHS S&T.
- Ensured adherence to government hosting standards directed by the Technical Reference Model (TRM) and conducted Section 508 analysis and remediation.
- Administered and supported Microsoft TFS and GitHub environments, ensuring high availability and secure access for a team of 11 developers.
- Performed vulnerability analysis with Fortify SCA, evaluating application binaries and reducing critical security defects before production deployment.
- Managed development sprints, ticket assignments, daily scrums, and development of formalized release documentation for government sponsors.
- Created project plans and formalized requirements for new development initiatives, including reconciling timelines with government stakeholders.
Software Engineer
4 Years 5 Months- Designed and developed user interfaces using ASP.NET Web Forms, AJAX Control Toolkit, Telerik, JavaScript, jQuery, and CSS.
- Prototyped and engineered RESTful APIs to facilitate data sharing.
- Developed GIS capabilities utilizing Google Maps API for real-time tracking and resource location.
- Responsible for documenting and delivering architecture artifacts to ensure project adherence to DHS S&T strategy, design patterns, and best practices.
- Conducted onsite demonstrations to showcase new features and solicit requirements from stakeholders.
- Developed SQL queries, stored procedures, triggers, views, and constraints in SQL Server.
- Performed comprehensive cross-browser compatibility testing and remediation.
Education
- Business & Politics Economic Theory
B.S./B.A. - Management of Information Systems/Management
Skills
Visual Studio Enterprise 2019/2022/2026
Controller APIs
RESTful Web APIs
Microservices
.NET 7
8
9
Elsa Workflows 3.0
C#
ASP.NET MVC
Python
Azure: AI Search
Blob Storage
DevOps
Key Vault
AWS
MSSQL 2019/2022/2025
T-SQL
Serilog
ILogger
DataDog
Fiddler
Developer Tools
Entity Framework Core 9.0
SOLID
Dependency Injection
Repository Patterns
Blazor Server
MudBlazor
Angular 8
React
Claude
GitHub
GitHub Copilot
JIRA
JS Interop
JavaScript
jQuery
TypeScript
Agile Development
Test-driven Development
Figma
CSS
SCSS
Bootstrap
MSTest
MOQ
Selenium
Timeline
Full Stack Developer
Compyl
12.2021 - 12.2025Read More
Lead Software Engineer
Constellation Software Engineering
07.2012 - 10.2021Read More
Software Engineer
Paragon Technology Group
01.2008 - 06.2012Read More
Old Dominion University
B.S./B.A. from Management of Information Systems/Management
Read More
University West of England
from Business & Politics Economic Theory
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