Justin Duplain

About

I design and deliver scalable, high-performance TypeScript/React applications that make complex products usable at scale. My work blends technical depth with a focus on reliability, accessibility, and user experience, and I thrive in roles where collaboration across engineering, design, and product teams is key to success.

As an engineer, I specialize in building resilient UIs for cloud and enterprise applications—optimizing performance, reducing defects, and shipping features that align with business goals. As a technical program or product partner, I leverage my development background to bridge technical and non-technical teams, align stakeholders, and drive initiatives from concept through release.

I'm a former US Marine and I strive to bring leadership, adaptability, and process discipline to every project. I’m motivated by solving challenging problems, mentoring others, and delivering solutions that make a measurable impact.

I want to help make the world a better place with code. Especially interested in projects focused on streamlining processes & experiences.

Technical Skills

Languages & Frameworks: TypeScript, React, Redux, HTML, CSS/Sass/LESS, Oracle JET, Node.js, Jest, PostgreSQL/MySQL, Responsive Web Design, Component Architecture, State Management
Build & Tooling: npm, yarn, Webpack, Jenkins, Git, CI/CD, Agile/Scrum, JiraAccessibility & UX: Axe, Lighthouse, WCAG/a11y audits, Wireframing, Prototyping
APIs & Backend: REST API integration, service integration across microservices
Cloud & Infra: Cloud computing (IaaS/Hybrid), UNIX, Terraform (basic), Kubernetes (basic)

Other: Artificial Intelligence-Assisted Development, Technical Documentation, Stakeholder Communication, Working familiarity with Java and Python (API integration, code reviews)

Resume

Senior Software Engineer | U.S. Marine Corps Veteran

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Summary

User-centered Senior Frontend Engineer with 10+ years in web and 3+ years shipping enterprise React/TypeScript UIs, and U.S. Marine Corps veteran. Expertise in micro-frontends, design systems, and performance & accessibility. Strengths in API-driven integrations, accessibility & testing, and cloud/edge product delivery and excellent at collaborating with cross-functional global teams.

Professional Experience

Senior Software Engineer, Oracle Cloud Infrastructure (OCI)

09/2024 - Present

Oracle, Remote, FL

Oracle is a Fortune 100 global enterprise software and cloud leader. OCI is Oracle’s hyper-scale public cloud platform offering distributed compute, storage, networking, database, and AI services.

I led the migration of a 15+ screen management console to a config-based TypeScript framework, cutting integration effort by ~20% and standardizing feature gating across 20+ endpoints. I built shared React/TypeScript and Oracle JET components used in 12+ micro-frontends, enabling delivery of key features like Disaster Recovery and Replication while improving maintainability and accessibility. I also automated development setup with an AI-assisted script, saving the team significant daily time and boosting overall productivity.

Member of Techical Staff, Product Engineering (OCI)

08/2022 - 09/2024

Oracle, Remote, FL

Defined frontend architecture standards and built internal tooling that automated infra workflows, streamlined onboarding, and accelerated adoption of modern UI practices; partnered with design/QA to deliver WCAG-compliant improvements that enhanced usability across customer-facing apps.

Web & Digital Consultant

10/2021 - 06/2022

SCF Coding Academy, Bradenton, FL

Provided web design, development, and digital services to a local technology training organization. Created websites, landing pages, microsites, interactive custom forms, directly contributing to meeting inaugural enrollment goals for web development bootcamp, STEM youth camps, python training programs, and other classes.

Webmaster/Digital Marketing Manager

12/2019 - 10/2021

State College of Florida, Bradenton, FL

Led web management for the region's largest public College, serving 40,000+ students annually and 1,000+ employees. Transitioned to leading digital efforts to stand up a new $3.6m entrepreneurship center and coding academy. Managed the core SCF.edu website, intranet site, and existing subdomains for the College and deployed 5+ additional web domains and digital properties. Utilized HTML5, XHTML, CSS, JavaScript, WordPress, PHP, and Bootstrap to code, review, and publish thousands of pages for SCF.edu, coordinating with 100+ users across dozens of departments. Implemented digital platforms & SaaS tools to support business operations. Coordinated with IT and customers/clients to research and solve technical issues; provided web and technical guidance and training to customers, vendors, and peers.

Web Consultant & SCF Lab Instructor

07/2014 - 12/2019

Various

Developed and transitioned full-scale WordPress websites and CRM platforms for small and medium businesses and managed SCF Art & Design Department Mac computers across 4 buildings & 20+ labs and offices. Implemented and maintained client WordPress websites and CRM platforms, created associated SQL databases, integrated external databases, and automated backups. Managed client site deployments, hosting, DNS properties, SEO, and created custom themes.