You will get an offline-first PWA with cloud sync and conflict handling


Project details
An offline-first web app that keeps working even when the internet is unreliable.
I build a Progressive Web App that lets users create, edit, and manage data offline, then sync safely when they reconnect. Typical features include local storage, user authentication, installable app behavior, background sync, and conflict handling so changes are never lost. The app is responsive on mobile and desktop and delivered with clean source code and deploy-ready setup.
Best for field teams, traveling users, and any product that needs dependable offline access.
I build a Progressive Web App that lets users create, edit, and manage data offline, then sync safely when they reconnect. Typical features include local storage, user authentication, installable app behavior, background sync, and conflict handling so changes are never lost. The app is responsive on mobile and desktop and delivered with clean source code and deploy-ready setup.
Best for field teams, traveling users, and any product that needs dependable offline access.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$350
|
Standard
$800
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 2 | 3 | Unlimited |
Number of Pages | 1 | ||
Design Customization | - | - | |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Content Upload
(+ 2 Days)
+$100Frequently asked questions
About Oluwatimilehin
Full-Stack Developer | Next.js, React & NestJS | TypeScript & Node.js
Ikeja, Nigeria - 5:44 pm local time
reliably, and doesn't fall apart when you want to add a feature — that's the
kind of work I do.
I'm a full-stack developer with 2+ years of end-to-end product delivery across
React, Next.js, React Native, and NestJS. I've shipped 8 production-grade
projects — from a real-time multiplayer game with WebSocket state sync, to a
collaborative whiteboard platform built for concurrent team use, to full-stack
admin platforms with CMS, media management, and role-based auth. These aren't
tutorial builds. They're designed for real users, tested under real conditions,
and architected to extend cleanly as products grow.
What you can expect from working with me:
- Clear scoping before a single line of code — I ask the right questions up
front so nothing surprises you mid-project
- TypeScript-first development across frontend and backend — fewer bugs,
faster debugging, easier handoffs
- Production-ready delivery — proper error handling, environment setup, and
deployment documentation included
- Honest communication — if your timeline is unrealistic or your approach has
a problem, I'll tell you before it costs you
My core stack: Next.js · React · React Native · Flutter · Node.js · NestJS ·
Supabase · PostgreSQL · TypeScript · Tailwind CSS · REST APIs · WebSockets · Solidity
I work well with founders who have a product idea they need to turn into
software, startups that need a reliable technical partner across web and mobile,
and engineering teams that need an extra pair of hands on a specific system.
If your project involves building something real — not just a landing page or
a template tweak — let's talk.
Send me a message with what you're building, and I'll tell you whether I'm the
right fit.
Steps for completing your project
After purchasing the project, send requirements so Oluwatimilehin can start the project.
Delivery time starts when Oluwatimilehin receives requirements from you.
Oluwatimilehin works on your project following the steps below.
Revisions may occur after the delivery date.
Scope & data model
Define the record structure, offline behavior, and sync requirements.
Offline storage & CRUD
Build local persistence and the create, read, update, and delete flows.




