Senior Backend Integration Engineer — Stripe, Auth

I'm looking for an experienced frontend-focused engineer to finish a partially completed integration between a React/Gatsby frontend and an existing API. · ...

I have a fully designed CRM specifically for EV charger installers. The front-end is complete and deployed on Netlify. I need an experienced full-stack developer to make it production-ready with all backend functionality and features. · ...

Job summary: Revamp & Stabilize Existing React Native App. A more detailed scope will be provided. Key areas of work include app stabilization and Supabase Auth fixes, end-to-end booking flow with persistent state, Stripe marketplace payments, business verification logic stored v ...

We are looking for a senior backend engineer to finalize and clean up the backend logic of a premium iOS app. · Auth & account system using Clerk only (no Supabase Auth) · Invite codes system · Venues availability logic · Booking system with Stripe integration · ...

+We're looking for a strong, product-minded full-stack engineer to help audit, clean up, and stabilize a consumer web app built on a Lovable (no-code/low-code) frontend with Supabase and Stripe. · +Auditing and fixing Supabase auth and user state · Cleaning up frontend and backen ...

I'm looking for an experienced full-stack developer to help finish and stabilize an existing MVP for a custom ChatGPT web application. · This is not a greenfield project. A base project already exists, and the goal is to make it production-ready with working authentication, paid ...

I'm looking for an experienced full-stack developer to help finish and stabilize an existing MVP for a custom ChatGPT web application. · ...

I am building a simple marketplace app where people buy and sell items via a $2 paid listing fee. · Tech StackFlutter (Dart) · Firebase Auth, Firestore, Storage · Stripe Payments + webhooks · ...

I have an existing, working web application currently running on Manus (I can provide the working Manus URL). I need a senior-level full-stack engineer to migrate it cleanly to GitHub + Render so it's stable, deployable, and maintainable without Manus. The goal is to preserve fun ...

+Job Summary · I'm looking for someone to connect an existing Framer website to Supabase.+QualificationsFramer experience · SUPABASE experience (auth, tables, RLS) · ...

TavernSeat es una plataforma de mercado en vivo que conecta a jugadores con Maestros del Juego para sesiones de RPG en línea. · Extender el código existente para Phase II. · ...

We are looking for an ambitious full-stack developer to build a lean SaaS MVP that integrates with WhatsApp Business Cloud API. · Integrate WhatsApp Business Cloud API for sending/receiving messages and simple automations. · Track multiple stages per contact (meeting booked → don ...

We are launching an early-stage SaaS product and are looking for an experienced developer to help with a short, tightly scoped engagement. · ...

I'm building an accountability app called LOCKED where users commit to goals and are automatically charged penalties if they fail. · Auth · Goal logic + deadlines · Proof uploads · Sentri subscriptions + conditional charges · Background jobs / cron ...

I'm migrating an existing Firebase backend to a MongoDB-based Node/Express API. · Port Firebase Cloud Functions logic into a Node/Express REST API. · Maintain authentication + authorization consistent with existing behavior. · ...

Necesitamos alguien con experiencia en Google AI Studio / Gemini apps, Google Cloud Platform (GCP), Firebase (Auth, Hosting, Functions, Firestore), y Stripe subscriptions & webhooks. El objetivo es lanzar el app existente a un entorno de producción. · ...

BloomBudget is an AI-powered personal finance app with a garden-themed UI. · The app is built and mostly working; we need help finishing critical backend work and polish for beta launch. · Phase 1 – Critical fixes · Standardize CRON authentication across 18 endpoints: remove quer ...

We are looking for a senior backend engineer to finalize and harden our production backend by properly connecting Stripe, Supabase,AWS, · ...

I'm building a lean SaaS called LOCKED. · An accountability app where users commit to goals and are automatically charged penalties if they fail. · ...

We are building a first-party ticketing and conference registration platform using Framer (frontend), Supabase (Postgres, Auth, RLS), and Stripe Checkout. · ...