Custom Fullstack Application Development by Sam DarcyCustom Fullstack Application Development by Sam Darcy
Custom Fullstack Application DevelopmentSam Darcy
Cover image for Custom Fullstack Application Development
I build custom web and mobile applications using React, Next.js, React-Native, and modern full-stack tooling, no templates, no shortcuts. With a decade of development experience spanning SaaS products, internal tools, and client-facing apps, I build software that's engineered to grow with you. Every project ships deployed, documented, and walked through so you're never left guessing.

What's included

Deployed Application
Your fully built, tested, and deployed application, live in production and ready for real users from day one.
Full Documentation
Complete technical documentation covering architecture, codebase, and deployment so your team can maintain and build on it confidently.
Personal Walkthrough
A recording covering the full application: how it's built, how to manage it, and how to extend it as your product evolves.
FAQs
We kick off with a discovery call to define scope, features, and technical requirements. I build in iterative sprints with regular check-ins so you see progress early and often. You get a deployed app, full documentation, and a personal walkthrough at handoff.
React, Next.js, TypeScript, and Supabase for web and cross-platform for mobile. I also integrate AI/ML features like LLMs and RAG when they add real value. The stack is always chosen to fit the project, not the other way around.
Smaller tools and dashboards can ship in 2–4 weeks. Full SaaS products or mobile apps usually take 1–3 months depending on scope. You'll get a clear timeline and milestones after our discovery call.
I've built apps for commercial real estate, construction, nonprofits, SaaS, and more. If you have a problem worth solving with software, I can build it, the domain changes but solid engineering doesn't.
Contact for pricing
Schedule a call
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Sam Darcy proBoston, USA
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Custom Fullstack Application DevelopmentSam Darcy
Contact for pricing
Schedule a call
Cover image for Custom Fullstack Application Development
I build custom web and mobile applications using React, Next.js, React-Native, and modern full-stack tooling, no templates, no shortcuts. With a decade of development experience spanning SaaS products, internal tools, and client-facing apps, I build software that's engineered to grow with you. Every project ships deployed, documented, and walked through so you're never left guessing.

What's included

Deployed Application
Your fully built, tested, and deployed application, live in production and ready for real users from day one.
Full Documentation
Complete technical documentation covering architecture, codebase, and deployment so your team can maintain and build on it confidently.
Personal Walkthrough
A recording covering the full application: how it's built, how to manage it, and how to extend it as your product evolves.
FAQs
We kick off with a discovery call to define scope, features, and technical requirements. I build in iterative sprints with regular check-ins so you see progress early and often. You get a deployed app, full documentation, and a personal walkthrough at handoff.
React, Next.js, TypeScript, and Supabase for web and cross-platform for mobile. I also integrate AI/ML features like LLMs and RAG when they add real value. The stack is always chosen to fit the project, not the other way around.
Smaller tools and dashboards can ship in 2–4 weeks. Full SaaS products or mobile apps usually take 1–3 months depending on scope. You'll get a clear timeline and milestones after our discovery call.
I've built apps for commercial real estate, construction, nonprofits, SaaS, and more. If you have a problem worth solving with software, I can build it, the domain changes but solid engineering doesn't.
Contact for pricing