Full-Stack Engineer – Fitness App Stabilization

We are looking for an experienced mobile app developer to improve the stability and reliability of our existing Android and iOS application. · ...

An experienced full-stack developer to stabilize and deploy an existing AI-powered web app. · Review the existing GitHub repo · Fix bugs, loading issues, and async problems · Stabilize AI API calls (timeouts, retries, error handling) · ...

We need help stabilizing and improving the performance of an app we created with AI. · ...

Project Overview · Reyale is a dating app MVP built in Bubble with Stripe payments already implemented. The core app exists, but there are remaining stability, logic, and QA issues that must be resolved before launch. · This project requires careful validation of existing logic. ...

An existing Shopify app needs to be debugged and fixed to function properly in production. · Ideal candidate has prior experience building and debugging Shopify apps with strong debugging and reasoning skills. · Debug why the app does not load or behave correctly in the Shopify A ...

+We are seeking a talented developer to enhance our existing web app hosted on Vercel. · + · The project involves fixing bugs and stabilizing the application. · Improving features related to user authentication and payment processes. · ...

This job involves revamping and stabilizing an existing React Native app. The ideal candidate should have hands-on experience with Supabase Auth and Stripe marketplace payments. · ...

We are seeking an experienced FlutterFlow and Firebase developer to undertake a critical 4-week rescue contract. Your primary goal will be to address and fix over 90 errors in our application, ensuring stability and performance. The ideal candidate will possess a deep understandi ...

Seeking an experienced Expo/React Native engineer to help stabilize and finalize our existing mobile application. · ...

We are seeking a skilled Senior Full-Stack Engineer to help stabilize our consumer application.This role requires strong debugging skills and extensive experience in system architecture and production environments. · ...

We are hiring a highly experienced full-stack developer to stabilize and production-harden an existing app. · Stabilize existing App: SnapEarner. · This is a stabilization rescue project after an unsuccessful prior engagement. ...

Necesitamos un ingeniero backend para reubicar y estabilizar mi aplicación Shopify. · ...

I have a · 15 (App Router) monorepo app that is largely complete. · I'm looking for an experienced engineer to do a stability + polish pass, not a rewrite. · //Goal · Fix runtime crashes (undefined variables, bad imports, etc.) · Resolve React hydration issues caused by client/s ...

I'm looking for an experienced Base44 / React engineer to stabilize and harden the app, clean up async/state issues, and implement a small set of governance guardrails — without changing financial logic. · ...

We have an internal appointment booking platform that manages schedules for our teams via a web application and a mobile application developed in Flutter The system uses a synchronized MySQL database setup local and online We need a skilled developer to address current instabilit ...

The SituationMy AI fintech web app is already built, designed and LIVE online. · This is not a build-from-scratch job.I need a senior engineer who can jump into an existing codebase diagnose issues quickly fix what's broken and stabilize the app for launch. · ...

Job Description · We have an existing production mobile application built with React Native (Expo) and a + Express + backend deployed on DigitalOcean using PM2. · This is NOT a new build. · The system is live and functional, but we need a senior backend engineer to audit, stabi ...

A web app needs cleanup and stabilization. · Cleanup existing code. · ...

Experienced WordPress + WooCommerce + Google Apps Script developer needed to stabilize existing production website. · Audit current system. · Identify solid vs fragile components. · ...

The app is fully built, demo-ready and functional. · Review the existing GitHub repo · Diagnose and fix loading / async issues · Stabilize AI API calls (timeouts retries error handling) · ...