Greg Tyndall

Healthcare quality & accreditation

NCQA — National Committee for Quality Assurance

Senior Full-Stack Developer

Feb 2022 – PresentWashington, D.C.Remote

Building and supporting the customer-facing platforms health plans use to author, measure, and score HEDIS® and CAHPS® quality measures.

• Core engineer on a three-person team building a new customer-facing application for authoring and measuring HEDIS/CAHPS quality measures, using Azure SQL, a C# API, React, TypeScript, and Material UI.
• Maintain and enhance the production application that health-plan providers use to monitor and score plans for accreditation, using Azure SQL, Redis, a C# API, React, TypeScript, and Material UI.
• Work with product owners and healthcare quality experts to turn regulatory measure specifications into maintainable, well-tested software.

• C#
• ASP.NET Web API
• Azure SQL
• Redis
• React
• TypeScript
• Material UI

Global nonprofit · high-traffic web

Compassion International

Software Developer

Feb 2020 – PresentColorado Springs, CORemote

Member of the six-person engineering team that supports and enhances compassion.com and a portfolio of high-volume external websites on the Microsoft stack and Tridion CMS.

• Led the accessibility initiative: implemented automated ADA/WCAG scanning with Pa11y to crawl and report issues across every customer-facing page.
• Built and maintained GitLab CI/CD pipelines for automated builds and deployments across development, staging, and production environments.
• Delivered the Apple Pay integration for the donation checkout experience on compassion.com.
• Re-platformed the internal SMS service from Microsoft Azure to an event-driven AWS serverless architecture — Lambda (Node.js), DocumentDB, SQS/SNS, PostgreSQL, and Timestream.
• Built the React front-end application for the Text2Sponsor service.

• C# / .NET
• Tridion CMS
• React
• Node.js
• AWS Lambda
• SQS/SNS
• PostgreSQL
• GitLab CI/CD
• Pa11y

Government & defense services

Capstone Corporation

Software Developer

Apr 2019 – Feb 2020Pensacola, FLRemote

Fully remote Agile developer on a seven-person team, sustaining mission-critical legacy systems while planning their modernization path.

• Worked remotely on a seven-person Agile development team, using JIRA, Slack, and Confluence for coordination.
• Maintained legacy C#/.NET and SQL Server 2008 R2 systems and planned upgrades to a modern front-end framework.

• C# / .NET
• SQL Server
• Agile / Scrum
• JIRA
• Confluence

Consulting · web, mobile & cloud

Independent Contractor · 10DALL.COM

Full-Stack Consultant

Jan 2018 – PresentFort Walton Beach → Eastpoint, FL

Architected and delivered web, mobile, and serverless solutions for small businesses and agencies — including a multi-store ordering platform that processed over $2M in orders as of 2021.

• Migrated existing C# Web API endpoints to Azure Functions backed by Azure Cache for Redis, moving the workload to a serverless, pay-per-use model.
• Built business websites with Next.js, Astro, and Gatsby/React, using Netlify deployments; integrated Sanity content with custom GraphQL queries.
• Designed and built the Air Ad Promotions iOS/Android app in React Native, integrating Google Drive for file storage and a C# .NET Core 2.0 RESTful API backed by MySQL and Entity Framework Core.
• Rewrote a digital-signage solution in Vue.js, rendering live data from RESTful web services.
• Built the Mama's Pizza ordering app for a nine-store chain, processing over $2,000,000 in orders as of 2021; later migrated it from Ionic/Capacitor to React Native/Expo, with TanStack Query for API data and Zustand for cart state.
• Built reusable promotional video compositions with React and Remotion for event and business content.

• Next.js
• Astro
• GatsbyJS
• React Native / Expo
• TanStack Query
• Zustand
• Ionic / Capacitor
• Azure Functions
• Redis
• Sanity / GraphQL
• Netlify
• Remotion

Banking & mortgage lending

Colonial Savings

Senior C# Developer

Sep 2016 – Dec 2017Fort Worth, TX

Built onboarding, e-signature, and loan origination system data migration tools for a national mortgage lender.

• Built a new-hire onboarding system with Angular 4 and ASP.NET Web API, connecting Sertifi and TSR data to an internal system and integrating with ADP.
• Built a DocuSign integration to send loans through the API, capture envelope events through webhooks, and display status in a KnockoutJS dashboard.
• Built an Angular data-mapping tool that lets business analysts document field mappings between the Empower system and the new Mortgage Cadence loan-origination system.
• Launched a Pluralsight training program to strengthen the development team’s skills.

• C#
• ASP.NET Web API
• Angular
• KnockoutJS
• DocuSign API
• ADP
• SQL Server

Founded and built a white-label mobile and web platform for entertainment venues — apps, CMS, SMS, and point-of-sale hardware integration — now serving thousands of end users.

• Built and deployed an Ionic mobile app supporting per-venue branding, push notifications, Facebook integration, and content delivery via Web APIs.
• Built a custom multi-tenant CMS using C#, SQL Azure, and Azure Web Roles to host individual venue websites.
• Engineered an online order fulfillment system that prints tickets to a thermal printer via Raspberry Pi (Python, Node.js).
• Built a Twilio-powered SMS messaging platform used across 20+ client sites.
• Migrated the original Ionic iOS/Android app to React Native with Expo and shipped it to the app stores for 5,000+ end users.
• Built a PHP WordPress plugin connecting venue websites to the Bloinka API, with cached content, custom rendering, and form integration.

• React Native / Expo
• Next.js
• ASP.NET Core
• Azure OpenAI
• SQL Server / SQLite
• JWT
• Hangfire
• GitHub Actions
• Sentry
• Application Insights
• Twilio
• WordPress / PHP

Automotive CRM · SaaS

AutoJockey CRM

Developer (Contract)

May 2014 – Oct 2014Arlington, TX

Built real-time communication features and migrated applications to Azure for an automotive dealership CRM.

• Built a web-based, multi-tenant application enabling live web chat and SMS conversations using SignalR and C#.
• Performed multiple in-house application migrations to Microsoft Azure.

• C#
• SignalR
• Microsoft Azure
• SMS

Aviation · member association

Southwest Airlines Pilots Association

Lead Software Engineer

Aug 2006 – Mar 2012Dallas, TX

Led engineering for the pilots' union web platform — from a Classic ASP migration through a fully custom, cloud-hosted replacement — plus governance and mobile voting tools.

• Migrated the association website from Classic ASP to ASP.NET using DotNetNuke (DNN) as the portal platform.
• Built SSIS packages to synchronize pilot data from the intranet into DNN's membership system.
• Built a board-governance application, loosely following Robert's Rules of Order, for board members to vote on resolutions — and a native iOS app for live voting.
• Delivered single sign-on between an ASP.NET application and vBulletin running on Unix, and migrated all forum data (400k+ posts) from Active Forums into vBulletin.
• Architected a fully custom web application to replace DotNetNuke and migrated all data to the new system on the Windows Azure platform.

• ASP.NET
• C#
• DotNetNuke
• SSIS
• SQL Server
• iOS
• vBulletin
• Windows Azure

Industrial manufacturing · Fortune 500

Trinity Industries

Senior Client Solutions Developer

Dec 2000 – Aug 2006Dallas, TX

Built enterprise web applications, reporting platforms, and internal tooling for a Fortune 500 railcar and industrial manufacturer.

• Member of the team that implemented a Site Server 3.0 solution for dynamic web content, focusing on the administration side of the Personalization & Membership component.
• Developed an ASP.NET document repository and workflow/authorization system to manage the collection and verification of records across the company's plant locations.
• Built a VB.NET console application that captures Active Directory account settings to generate reports for IT&S.
• Led the team that researched, analyzed, and selected a company-wide reporting solution to replace Crystal Reports 7.
• Developed software used by the Client Solutions team to build and store XML reporting structures in SQL Server.
• Created a VB.NET application enabling off-site plants to download and print images to TIF-enabled printers via Win32 API printer-queue calls.
• Designed and developed an ASP.NET application delivering canned and custom reports on 300,000+ railcars (SQL 2000, ASP.NET, DHTML, XML, Web Services).
• Administered IIS for all company websites (20+).

• ASP.NET
• VB.NET
• SQL Server 2000
• XML / Web Services
• Site Server 3.0
• IIS
• Active Directory

Real-estate marketplace

HomeBuilder.com

ASP Developer · Team Lead

May 2000 – Dec 2000Dallas, TXCompany sold

Team lead for the billing platform behind $25M in annual revenue.

• Team lead on the rewrite and maintenance of the billing system responsible for tracking most of HomeBuilder.com's revenue ($25 million).
• Rewrote the VB COM objects that generate the import files used to bill all of HomeBuilder's clients.
• Rewrote the ASP billing intranet site.

• ASP
• VB COM
• SQL Server

IT consulting

Born Information Services

Consultant

Jul 1998 – May 2000Dallas, TX

Consulting engineer placed with enterprise clients to build e-commerce, intranet, and Site Server solutions.

CellStar

• Member of the team that implemented a Site Server 3.0 solution for dynamic web content, focusing on the administration side of Personalization & Membership.

CompUSA

• Member of the web development team responsible for maintenance and new development on the company's e-commerce website (ASP, HTML, DHTML, CSS, JavaScript).
• Designed the look and feel of CompUSA's informational website (info.compusa.com).
• Developed a VB 5.0 application automating file promotion from the development environment to the staging server.

PageNet

• Developed an ASP application allowing the company to visually track the progress of a major company-wide transition.
• Developed an ASP application to track inquiries for advertising campaigns, with heavy involvement across the full project life cycle (ASP, DHTML, SQL Server 6.5, Excel VBA).
• Developed an ASP application to display collected commission figures and give 40+ local office managers the ability to add, edit, and delete figures before payroll processing (ASP, Access, SQL Server 6.5).
• Maintained and enhanced the company's internet, extranet, and intranet sites (Site Server 3.0 Commerce, SQL 6.5, ASP, JavaScript, VB COM).

• ASP
• Site Server 3.0
• SQL Server 6.5
• DHTML / JavaScript
• VB COM
• VB 5.0

Internet service provider

Interconnect Services, Inc.

Webmaster / Assistant Manager

Sep 1996 – Jul 1998Corpus Christi, TX

Owned all in-house and customer web development for a regional ISP while managing the technical support desk.

• Managed all in-house and customer website development (ASP, SQL Server 6.5, HTML, Photoshop, Flash).
• Implemented and maintained the Emerald billing system to track and automate billing for 2,000+ customers.
• Managed a team of three technicians providing technical support by phone.
• Designed advertisements for flyers and cable-television spots.

• ASP
• SQL Server 6.5
• HTML
• Photoshop
• Flash