Sean Paul Payne Dinwiddie

Senior Full Stack Engineer | AI & Automation Architect | Redux.js Expert
πŸ“§ sean@sdin.dev πŸ“± (530) 638-3238 🌐 sdin.dev πŸ”— linkedin.com/in/seandinwiddie πŸ™ github.com/SeanDinwiddie

Professional Summary

Principal AI Systems Architect and Senior Full Stack Engineer with 20+ years of mastery. Specializing in fine-tuned SLMs/LLMs, autonomous cognitive agents, and RAG pipelines. Fusing Functional Programming (Monads, Redux) with pragmatic strategy, I build deterministic systems that dominate the edge of automation.

Technical Skills

AI & Automation: Autonomous Agents, RAG Pipelines, Tensor/Vector DBs (pgvector/Pinecone), LLM Fine-tuning (SmolLM/Llama), Cognitive Architectures (HFSM/Behavior Trees), Prompt Engineering (CoT/ReAct).
Frontend Engineering: Redux Toolkit (RTK) & RTK Query, React.js, React Native (Expo/Router), TypeScript, Tailwind CSS, Next.js, HTML5/CSS3, shadcn/ui, Radix UI, Framer Motion, Zod, React Query.
Backend & Cloud:Node.js, Express.js, FastAPI, PostgreSQL, SQL, Redis, AWS, RESTful APIs, GraphQL, PHP/Laravel, Docker, Vercel, Supabase, Edge Functions.
Architecture & Tools:Functional Programming (Effect.ts, RxJS), Git/GitHub, CI/CD (GitHub Actions), Jest/Vitest/TDD, Agile/Scrum, Domain-Driven Design (DDD), Monorepo Architecture, Figma.

Experience

Forboc (AI Startup) | Lead AI Engineer & System Architect
Present
Forecast (Crypto Analytics) | Senior AI Engineer
Present
Sean Dinwiddie | AI Software Developer
Sep 1994 – Present
Redding Webmaster | Principal Software Engineer & AI Architect
Apr 2019 – Present
AcmeWerx, Inc | Senior Full Stack Engineer
May 2025 – Aug 2025
Carport Central | Lead Full-Stack Developer
Nov 2024 – Mar 2025
Spearheaded the modernization of legacy systems, boosting site performance by 70% and enforcing mobile-first responsiveness. This optimization triggered a 20% conversion rate increase, capturing approximately $73,500 in additional monthly revenue through enhanced digital fluidity.
Boon Data Solutions, Inc | Full Stack Engineer
Dec 2018 – Sep 2022
Engineered custom compliance software that automated complex regulatory processes, eliminating 30+ hours of analog documentation artifacts weekly. This systemic efficiency saved $10,400/month in labor costs and prevented an estimated $31,200 in monthly compliance penalties.
ENPLAN Environmental and Geospatial Technologies | Full Stack Developer
Oct 2018 – Mar 2019
Deployed custom geospatial visualization engine, amplifying map interaction by 200% • Integrated high-performance Django backend, drastically reducing page load latency • Translated technical architectures into strategic concepts, ensuring project alignment • Resolved data integration conflicts, ensuring seamless flow across systems
Shasta.com | Web Developer
Nov 2017 – Aug 2018
Migrated legacy apps, improving load velocity by 35% • Boosted mobile engagement by 45% via responsive design • Engineered optimized PHP apps for service workflows • Solved cross-browser issues, ensuring uniform UX • Developed dynamic apps using modern frameworks • Built secure, scalable .NET enterprise solutions • Authored WordPress plugins to streamline content
Optimize Worldwide, Inc. | Web Developer
Jul 2016 – Aug 2017
Built high-fidelity web apps, setting new design benchmarks • Led team, enforcing code reviews and architectural standards • Built plugins driving 35% sales growth and 25% faster workflows • Aligned technical execution with business strategy
Veritas Health Systems | Full Stack Developer
Jul 2011 – Oct 2014
Architected tools optimizing member onboarding • Engineered engines increasing sales by 20% • Developed SPAs for complex insurance workflows • Built native iOS and Android apps • Deployed systems reducing administrative friction • Implemented 100% HIPAA compliant practices • Built real-time analytics for decision making • Modernized regulated patient data systems • Automated accounting, reducing errors by 40%
n-Space | Game Developer
May 2008 – Jan 2009
Call of Duty: Modern Warfare: Mobilized (Nintendo DS), Hannah Montana: The Movie (Nintendo DS), Hue Pixel Painter (Nintendo DS)
Semi Logic Entertainments | Game Developer
May 2005 – Jul 2007
Prism: Guard Shield (Windows), X-Men (HyperScan), Marvel Heroes (HyperScan), Spider-Man (HyperScan), Ben 10 (HyperScan)
Network Business Machines | Technician and Web Developer
Oct 2002 – May 2005
Engineered and maintained bespoke business applications, diagnosing hardware/software entropy to ensure absolute operational continuity for enterprise clients.

Publications

Education & Certifications

Shasta College 2000 – 2015
Coursework in Computer Science, Fine Arts, and General Education
Autodidact Software Engineer since 1994 (Continuous Professional Evolution).
From the early web to AGIβ€”bridging automation and humanity.