AWS Backend Engineer Needed to Optimize API Usage

We are seeking an experienced backend/API developer freelancer to design build and deploy a secure scalable data API hosted on Azure. · The project includes one-time API development and an optional ongoing monthly maintenance & support engagement. ...

We need a frontend-focused developer to build the billing and subscription experience for our AI chat app: pricing/plans, checkout, subscription status, usage metering, and payment integration. The main deliverable is a production-ready frontend that talks to our existing APIs. ...

We are building an enterprise-grade translation and writing platform designed to operate at scale, · with both free and paid API tiers.This is not a prototype or experiment — it is a production system that will power high-traffic websites and external customers. · ...

We're running an AI API platform where developers consume credits per request. We need a focused, well-engineered backend that handles the financial core: issuing credits to accounts, recording usage events, and exposing balances and transaction history. No frontend, no Stripe ye ...

We operate a live AI voice system where users can speak in real time to city-based AI "Gladiators."What is missing:Monetization · Usage enforcement · Memory persistence · Anti-abuse protection · We need a proper SaaS revenue + control system built around the existing voice layer. ...

We're building openclaw — an AI Bot-as-a-Service platform that lets businesses deploy and manage custom AI bots (Telegram, Signal, WhatsApp) with a managed backend. The platform handles provisioning, billing, and bot lifecycle management so clients don't need to manage their own ...

ScrollKitty is an iOS screen time management app that blocks social media apps after users exceed limits. · Select apps show '-' instead of actual usage hours in the 'Weekly Offenders' section. · ...

We have already built the web SaaS platform (dashboard auth database billing).We now need a Chrome extension that connects to our existing API and sends AI usage events.The extension will detect when users interact with AI tools (ChatGPT Claude Gemini etc) and send usage/risk dat ...

We need assistance understanding why our Google Cloud account has been closed and how to appeal or restore access. · ...

I'm building a web-based AI workflow canvas platform (node-based, visual workflows). This is a serious build, not a tutorial project. · User authentication (email + Google) · User dashboard · Drag-and-drop node-based canvas · Ability to create, connect, save and run workflows · ...

I want to build a full Messenger & WhatsApp Automation SaaS with AI-powered chat, multi-tenant architecture, and monetisation features. · Connect Facebook Page / WhatsApp number · Messenger & WhatsApp integration with Webhooks (real-time messages) · Keyword-based auto replies + w ...

We are seeking a skilled freelancer to connect our CRM with WhatsApp Meta API. The goal is to enable sending WhatsApp messages directly from the CRM. · ...

I am building CuePilates, an AI-powered class planning web app for Pilates instructors. The app uses the Anthropic Claude API to generate class plans, with three Stripe subscription tiers, usage metering, user authentication, branded PDF downloads, and PWA support. I have a detai ...

+Job summary · Building a web-based AI workflow canvas platform. Build a full-stack web application with user authentication, user dashboard, drag-and-drop node-based canvas and more. · +QualificationsUser authentication (email + Google) · User dashboard · +ResponsibilitiesCreate ...

We are looking for an experienced Ruby on Rails engineer to integrate Stripe into an existing legacy application. · Integrating Stripe SDK into a legacy rails app. · ...

Develop scalable backend system for managing dropouts. · Develop and maintain scalable backend system for managing dropouts. · ...

We are building a simple SaaS web application for medical offices that analyzes insurance claim denial letters and provides clear guidance on how to correct and resubmit the claim. · This is a focused MVP — not a full billing system and no EHR integrations. · The application will ...

We are building Project Atlas, a production-ready data enrichment and geospatial search system for real estate investors. · This is not a simple script. It must be secure, reliable, fast for end users, and built with clean architecture. All sensitive API keys must be handled serv ...

A Python developer is needed to build a LangChain agent with custom tools for document analysis. · Implement ReAct pattern with error recovery. · Maintain conversation memory and handle function calling. · ...

We are seeking a highly technical Virtual Assistant to manage and optimize a Claude-based AI bot used for automated workflows and content generation. · The ideal candidate understands prompt engineering, API usage, token cost control, and workflow automation. The primary goal is ...