David Maguire
Software Engineer | Backend Developer | Full Stack Developer
About Me
I'm a passionate software engineer with over five years of professional experience building robust, scalable applications.
I thrive on solving complex challenges and writing clean, maintainable code. Throughout my career, I've specialized in developing enterprise applications, database-driven systems, and cloud-based automation tools that make a real impact.
What sets me apart is my commitment to continuous learning and embracing cutting-edge technologies. I'm always eager to explore new frameworks, optimize existing systems, and leverage AI LLMs to enhance development workflows.
Whether it's architecting full-stack solutions, modernizing legacy systems, or collaborating with cross-functional teams, I bring both technical expertise and a problem-solving mindset to every project.
Experience
AI / LLMs
Languages / Frameworks
Professional Experience
App Developer
LAZ Parking
Utilized AI LLMs, primarily Claude Opus 4 and Claude Sonnet 4, to assist in development and documentation of codebases.
Developed a full-stack application using React, JavaScript, and TypeScript that supports OAuth authentication, collects user and API data via forms, stores it in structured SQL tables, and displays it on personalized user dashboards.
Maintained legacy code for enterprise web applications written in Angular and TypeScript.
Developed a deployable application using Windows Forms and C# that aggregates files of different types from various server locations and compiles them into structured PDF packages.
Developed a C# Azure Function to securely decrypt, process, and manipulate files from an SFTP directory, seamlessly transmitting the extracted data via API integrations.
Created and maintained pipelines in Azure Data Factory, utilizing SQL and PowerShell scripts.
Software Engineer / IT Manager
Ivy Biomedical Systems
Developed a web application written in C# and ASP.NET that generates and prints various order labels based on user-provided shipping numbers.
Developed a database-driven web application written in C# and ASP.NET enabling employees to input information in a structured report format, as well as view, edit, and print previously created reports.
Maintained essential IT infrastructure including desktops, servers, email systems, security tools, and company databases.
Performed a company-wide email server transfer from Intermedia to Microsoft 365.
Implemented security measures to protect sensitive data and ensure compliance with industry standards.
Provided technical support and training to employees, enhancing their proficiency with software and hardware.
Enterprise Support Intern
CyberArk
Assisted in large-scale support case close and account reconciliation project.
Provided Tier 1 enterprise support for clients using CyberArk Privileged Access Manager, assisting with account onboarding, password rotation, and vault connectivity issues.
Gained hands-on experience with enterprise identity security concepts such as privileged access management, credential rotation, and session monitoring.
IT Intern
Vineyard Vines
Provided Tier 1 IT support to corporate and retail employees, resolving hardware, software, and network-related issues.
Assisted in diagnosing and troubleshooting issues with desktop computers, laptops, printers, and mobile devices.
Helped set up and configure user accounts, devices, and software for new hires and internal transfers.
Audio Visual Technician
Sacred Heart University
Monitored and repaired audio, video, control systems, and video conferencing equipment in classrooms and conference rooms across campus.
Conducted routine maintenance, repairs, and inventory checks on A/V equipment to ensure reliability.
Adhered to safety protocols while installing projectors, displays, and speakers.
Implemented efficient cable management to maintain organized and hazard-free setups.
AI & LLMs
Technical Skills
Languages
Frameworks
Tools & Cloud
Contact
Whether you're interested in collaborating on a project, have a question about my work, or just want to talk tech, feel free to reach out! I'm always open to new opportunities and conversations in the world of software engineering.