WILLIAM MCVAY

PROFESSIONAL SUMMARY

Full Stack Legacy Integrations Developer

20+ years of experience modernizing workflow-heavy applications across legal, healthcare, defense, education, and government environments. Specializes in building React/Node applications, integrating legacy systems, automating manual processes, and translating complex business requirements into reliable production software.
Proficient across full stack architecture from CI/CD DevOps and IaC through databases and back ends to front end design, implementation, responsive styling, and SEO.
Proven success designing and deploying production systems on Heroku, AWS, and GCP with 99%+ uptime, rapid and reliable deployment, and low overhead costs.
Strong communicator and mentor, reliable on remote Agile teams and independent project delivery consistently on schedule and delivering high quality, fully tested code.
Recent focus on modernizing internal IT processes in a legal setting through automated workflows integrating legacy application APIs to reduce time requirements and errors.

Languages: JavaScript/TypeScript, HTML, CSS, Java, Python, C#, PHP, SQL, Lua, Bash, IBM 3270;

Frameworks: React, Next.js, Angular, Node.js, Spring Boot, Django, .NET, jQuery;

Databases: PostgreSQL, MSSQL, MySQL, MongoDB/NoSQL;

Integrations: IBM 3270, Google APIs, Graph API, Twitter, DoD Legacy Systems;

Tools: Git, Docker, NPM, GitHub/Copilot, Jira, TFS, Slack, Teams, Discord, Office, Google Apps;

DevOps: AWS (Lambda, EC2, S3), GCP, Heroku, GitHub Actions, Jenkins, Apache, Tomcat;

Testing: Jasmine, Jest, JUnit, Selenium;

HackerRank Certifications: Front End Developer, Software Engineer, React, JavaScript

Dover, DE | Aug 2025 – Present | Node, React, IBM 3270 Integration

Developed Node.js and React apps to coordinate existing case management software.
Reverse-engineered poorly documented legacy workflows and built modern tooling to reduce manual processing effort by 99%+.
Supported conflict counsel operations through case analysis, scheduling, client communications, and conflict review as an embedded developer.

Remote | Mar 2022 – Jan 2024 | AWS, PostgreSQL, Node/Django, React

3-5 features implemented weekly with Node Lambda functions and CloudFormation scripts to expose legacy data sources as REST APIs for front-end consumption.
3-10 React components completed weekly for graduate program search and matching app.
30% boost to Google Lighthouse scores achieved via performance and SEO optimizations.
2-4 weekly full-stack CMS features developed combining Django/PostgreSQL with React.
3-5 junior developers mentored, coordinating tasks, reviewing code, and meeting deadlines.
95%+ code coverage ensured with unit, integration, and end-to-end acceptance tests.

Remote | Feb 2019 – Jan 2022 | MSSQL, Java Spring Boot, Angular

Built full-stack Angular + Spring Boot application for DoD childcare registration integrating with legacy DoD personnel systems.
3-4 developers mentored and led feature development from design to delivery.
95%+ test coverage ensured integrating MSSQL procedures with Java and Angular layers.
4-10 completed user stories delivered within biweekly sprints across distributed teams.

Remote | Sep 2014 – Apr 2018 | Node.js

5+ legacy data sources integrated using Node to improve EMR scalability and performance.
Developed Angular + Java-based applications for AmTrak and FCC services.
2-3 junior engineers mentored and led implementation of mission-critical features.

Wilmington, DE | Jul 2013 – Jul 2014 | LAMP Stack

2 complete Angular apps developed using LAMP stack for CRM and financial aid tools.
~10 member product and QA team collaboration for successful feature delivery.

Newark, DE | Aug 2003 – Jun 2007

Dover, DE | Aug 2017 – Jun 2019