Mark Gill logoContact
Full-Stack Developer
Based in North Attleboro, Massachusetts

Building Reliable Software That Drives Results

Turn ideas into powerful web and mobile apps with clean code, scalable architecture, and great user experiences.

5+

Years building

Top 1%

Upwork talent

100%

Job success

Built for the real world
Dashboard on laptop and phone

Production-ready

From idea to launch

01

Full-Stack Development

End-to-end solutions

02

Web Applications

Fast, responsive, scalable

03

Mobile Applications

iOS and Android with React Native

04

API & Backend

Robust, secure, high-performance

Mark Gill headshot

About Mark

Senior Full Stack Developer focused on real business outcomes.

Seeing your software vision come to life doesn't have to be a rocky road. Your ideas should come to life through communication, ownership, and clean maintainable code. With over 5 years of professional experience, I've helped clients bring their designs and ideas to MVP's, and production-ready applications with a great UI/UX.

Based in North Attleboro, Massachusetts, I work with businesses locally, across New England, and throughout the US. My core stack is React, React Native, Next.js, Node.js, and TypeScript.

Top Rated Plus

Top 1% on Upwork

100%

Job Success Score - Upwork

5+

Years experience

Projects

Software built around real-world needs

A selection of applications I have developed across reporting, video features, and collaborative education.

Confluent Reporting brand scorecard dashboard

Healthcare reporting platform

Confluent Health Reporting

A streamlined, dynamic reporting dashboard that gives users a responsive interface for viewing and working with healthcare business data. The interface includes searchable, filterable data, clear status indicators, and export tools that make complex reporting easier to manage.

ReactExpress JSMicrosoft AzureData GridsReporting UX
Screnr overhead squat analysis on mobile and desktop

Video tracker fitness application

Screnr Health

A movement-analysis experience that uses real-time pose tracking and AI to evaluate exercise form. The app delivers immediate audio/visual in the mobile app to patients. Clients and PT's can then log in to the web portal to see scores, and PT's can prescribe exercises.

ReactReact NativeExpress.jsAWSVideo TrackingReal-time Feedback
Write GT digital whiteboard displaying a hand-drawn math lesson

Collaborative whiteboard application

Write GT

An interactive handwriting and whiteboard workspace for teaching, tutoring, and remote collaboration. It combines natural drawing tools, graph-paper canvases, zoom controls, printing, video calling, and instant messaging features in one focused interface.

Next.jsTypeScriptExpress.jsDigital OceanCanvasReal-time Collaboration

Services

New ideas.
Better software.
A clear way forward.

Launch something new or improve what you already have. Get hands-on development and practical technical guidance, shaped around your project.

Let’s talk about your project

Based in North Attleboro, Massachusetts.
Working with teams across New England and the US.

Web & full-stack

Turn an idea into a working product.

Custom web applications built around the way your business works. From customer portals to internal tools, every layer comes together: interface, backend, and database.

MVPs · Dashboards · Customer portals

Mobile apps

Put your product in people's hands.

Connected experiences for iOS and Android with React Native. Bring the features your users need to mobile, with thoughtful interfaces and the backend to support them.

iOS & Android · Device features · API integration

Integrations & improvements

Make existing software work better.

Slow workflows, disconnected systems, and stubborn bugs don't have to stay that way. Add useful features, connect external services, and improve performance without starting over.

New features · Third-party integrations · Modernization

Technical direction

Know what to build next, and how.

Get a practical plan before committing to the build. Architecture reviews, code assessments, and clear technical priorities help turn a broad goal into manageable next steps.

Architecture · Code reviews · Technical roadmaps

Client Testimonials

Delivering software the way it should be for years

Long-term clients should expect clear communication, quick solutions, adapting as requirements evolve, and delivering great software.

Mark has been absolutely AMAZING. His skills are more extensive than initially advertised. He has helped us way beyond the scope of this project. We more or less have him on retainer because of the high quality of work. He's helped with mobile app development, web app development, database development. Absolute rockstar!

JB - Screnr Health

Our team works with React and Mark has been with us for a few months now. We went from concept mode to a Windows Desktop application and website that's functioning very well and more as it evolves. Mark goes above and beyond to figure out solutions, and reports them back to us when complete. Very courteous and professional, and I highly recommend him. He has a quick learning curve too.

Sam - Write GT

Mark ramped up quick on the project requirements and was able to contribute to the deliverables. Will definitely hire him back once there is an opportunity. His strong points are attention to detail, communication and follow-up. Good luck Mark with your next projects!

Praveen - InterviewWorks

From the Blog

Practical notes on building better software

Lessons from developing production web, mobile, backend, and real-time applications for growing businesses.

View all articles

Contact

Ready to build your next product?

Send a message with your project goals and I will help shape the best technical plan.