Ryan McElroy, Developer in Charlotte, NC, United States
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Ryan McElroy

Verified Expert  in Engineering

Software Developer

Charlotte, NC, United States
Toptal Member Since
June 1, 2021

Ryan is a software development, design, and management professional with 8+ years of experience as a consultant, including 3+ years at the director level. His expertise includes requirements definition and software development processes, architecture and stack selection, and DevOps. With broad industry experience, including financial services, eCommerce, utilities, and SaaS, Ryan brings value to organizations that are starting development projects or looking to improve their current processes.


Amazon Web Services (AWS), Azure, Azure SQL Databases, Visual Studio, C#...
Sema Technologies, Inc.
Writing & Editing, Technical Writing, Software Development, Best Practices...
Auth0, Inc
Writing & Editing, Mobile, Blogging, Blog Posting, Technical Writing, iOS...




Preferred Environment

Windows, Azure, Amazon Web Services (AWS), .NET

The most amazing...

...thing I've helped build is a healthcare claims processing system that replaced 24,000 lines of SQL stored procedures.

Work Experience

Vice President of Technology

2017 - PRESENT
  • Joined this software consulting startup as number two employee and played a pivotal role in growing the firm to 120 people over 5 years, despite COVID-19.
  • Ranked as the best place to work in Charlotte, North Carolina, for midsize companies in 2020 and 2021. Hylaine also achieved 0% turnover for a 16 month period and has a consistent turnover rate of less than 4%.
  • Managed and provided support for our two technical service lines and around 66% of our consulting pool, application development, and business intelligence, ensuring excellent design and delivery of dozens of projects.
  • Built a processing system using Azure Service Fabric microservices to replace a collection of monolithic stored procedures, increasing performance by 75% and creating a suite of unit and integration tests to support accuracy.
  • Built an aggregate risk-exposure tracking and management system that used real-time calculations and caching to beat competing SaaS product SLAs and achieved 10,000 times the typical load targets and horizontal scale goals.
  • Completed an agile transformation for an IT organization of over 50 and reduced release pipeline lengths from six months to one week via process improvements and CI/CD implementations.
  • Analyzed a core financial systems platform, including identifying performance improvement opportunities that reduced processing SLAs by 25% and provided the client with a market analysis that reduced licensing costs by 75%.
  • Analyzed a flagship field-work platform for a client with an upcoming 10-time load launch, including identifying key performance issues, developing proofs of concepts for improvement, and creating a data-driven roadmap for a successful launch.
  • Codesigned a billing processing system accountable for a significant portion of group healthcare insurance invoicing. Achieved 15 times the performance of the legacy system and a comprehensive unit testing suite and delivered on time and budget.
  • Developed various eCommerce integration microservices, using Azure Functions and Cosmos DB, and integrated with a wide range of legacy and REST APIs.
Technologies: Amazon Web Services (AWS), Azure, Azure SQL Databases, Visual Studio, C#, Angular, Azure DevOps, ASP.NET, Entity Framework Core, Entity Framework, Dapper, Aurelia, Bootstrap, Postman, Azure SQL, Azure Application Insights, Redis, Azure Service Fabric, Azure Functions, AWS Lambda, PostgreSQL, AWS Glue, Amazon SageMaker, AWS IAM, Azure Active Directory Graph API, Azure Cosmos DB, Load Testing, Performance Testing, Software Architecture, Architecture, System Design, Technical Writing, Writing & Editing, SQL, Web3, CTO, APIs, Full-stack, Healthcare, Leadership, HIPAA Compliance

Technical Writer

2022 - 2022
Sema Technologies, Inc.
  • Bootstrapped a startup firm's marketing presence via blogs, interviews, whitepapers, and more.
  • Created content hosted on sites like Stack Overflow and widely shared on social media around communication, technical skills, and management.
  • Helped propel the client to a successful launch and Series B funding round.
Technologies: Writing & Editing, Technical Writing, Software Development, Best Practices, Content Writing, Blogger, Blogging, SQL, Web3, APIs

Technical Writing Reviewer and Author

2021 - 2022
Auth0, Inc
  • Reviewed and edited blog posts created by international contributors under tight deadlines for one of the most-read technical blogs in the world.
  • Self-authored/ghostwrote articles to help salvage important topics when appropriate.
  • Tested and verified technical content with dozens of software languages and tools to support a diverse, worldwide audience.
Technologies: Writing & Editing, Mobile, Blogging, Blog Posting, Technical Writing, iOS, Android, SQL, Web3, Software Architecture, APIs

Consultant 2

2014 - 2017
CTS Inc.
  • Progressed from being an intern to an account-anchor consultant at a southeast regional firm that CGI, Inc. purchased in 2017.
  • Developed a custom BizTalk solution from scratch to manage scheduling and other topics as part of a pest control client's first enterprise service bus (ESB) backbone project.
  • Acted as the technical lead for a Crystal Reports project and later as an SSRS reports individual contributor as part of the largest utility merger in US history. Focused on integrating and visualizing data for nuclear plant operations.
  • Built the inaugural automated testing practice at an insurance client, using Coded UI tests while also improving manual testing practices and documentation.
  • Assisted in developing a custom data ingestion, synchronization, and rules engine for a group insurance benefits application.
  • Acted as the primary UI designer and maintainer, from scratch, for an internal application used at CTS, Inc. for summer cultural events.
Technologies: C#, ASP.NET, SQL Server Reporting Services (SSRS), TFS, Coded UI Tests, BizTalk, Crystal Reports, SQL Server Integration Services (SSIS), SSIS Custom Components, ASP.NET Razor, jQuery, Kendo UI, SQL Server Management Studio (SSMS), Visual Studio, Azure DevOps, Entity Framework, TFS API, SQL, Software Architecture, APIs, Architecture, Full-stack, Leadership


A tool that aligns TFS test cases that have been migrated using TCM.exe. For example, it migrates information like path, history, and comments. I wrote this console application six years ago as part of my work as a consultant, and it's one of many applications I wrote during my career.

One thing that's changed over the past few years is that TFS has evolved from an on-premise service with niche needs and customization to a true SaaS platform with a good API. So, doing things like migrating test cases is easy now—but, back then, you had to dig through dead links and poor documentation to build something reasonable.

Technical Blog Editing/Ghostwriting

This project involved working with one of the most popular technical blogs in the world and assisting a host of international authors with their posts.

I would join in at the ideation stage, talking with each blog author about their strengths and helping produce outlines that would be popular. I'd review and approve these outlines.

Then, the editing cycle would begin. For some authors, this would be grammar and tone fixes. Others would require significantly more intervention, including a total rebuild/ghostwriting (with their permission).

In addition, I was tasked with learning new technologies and testing the walkthrough portions of each blog. These ranged from the mainstream to the esoteric.
2011 - 2013

Bachelor's Degree in Software Engineering

Auburn University - Auburn, AL, USA


Entity Framework, TFS API, PrimeNG, jQuery, Azure Active Directory Graph API


Visual Studio, TFS, Dapper, Postman, Redgate, Azure Application Insights, IntelliJ IDEA, Crystal Reports, AWS Glue, Amazon SageMaker, AWS IAM


ASP.NET, Bootstrap, Entity Framework Core, .NET, Angular, Kendo UI, Aurelia


C#, HTML5, CSS, SQL, ASP.NET Razor, C++, C, Prolog, Smalltalk, Java, Python


Test-driven Development (TDD), Azure DevOps, Coded UI Tests, Load Testing, HIPAA Compliance, Best Practices


Windows, Azure, Azure Service Fabric, Azure Functions, Amazon Web Services (AWS), AWS Lambda, Mobile, iOS, Android, Blogger


Azure SQL Databases, SQL Server Integration Services (SSIS), SQL Server Management Studio (SSMS), Azure SQL, Redis, Azure Cosmos DB, SQL Server Reporting Services (SSRS), PostgreSQL

Industry Expertise



Manual Software Testing, Software Architecture, Architecture, System Design, Technical Writing, Writing & Editing, CTO, APIs, Full-stack, Leadership, BizTalk, SSIS Custom Components, Performance Testing, Web3, Blogging, Blog Posting, Software Development, Content Writing

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