OAuth Jobs

I need a small desktop utility that connects to my Seller Central account through Amazon’s SP-API and handles one very specific order-processing step: shipment tracking. The application should poll for recently shipped orders, pull the carrier name and tracking ID I have already uploaded, and then push basic status updates (shipped, in transit, delivered, exception) back through the SP-API so the order timeline inside Seller Central stays in sync. Key points • Focus is shipment tracking only; no inventory work or deep sales analytics needed. • Basic status updates are enough—location–by–location detail is unnecessary. • The tool must run locally on Windows, storing credentials securely (refresh token, client ID/secret). • I would like cl...

# Full-Stack Developer Needed for Existing AI SaaS — Inspection, Deployment & Improvements I recently acquired an existing AI SaaS application called **Proxelion** and I'm looking for a reliable full-stack developer who can help me understand, deploy and improve the product. I am a **non-technical founder**, so I need someone who can explain technical issues clearly and work with me long-term. Think of the first task like a **mechanic inspecting a car before purchase**. I don't want someone to immediately rebuild the application. I want someone to first inspect what is already there, test the important functionality, identify problems and tell me what actually needs to be fixed. ## Existing Technology The application is built with technologies including: * * Rea...

Job title: Build a Low-Latency MCP Server for Excel, Microsoft Project and Word I’m looking for an experienced developer to build a Model Context Protocol (MCP) server and tools that allow an AI assistant to interact with Microsoft Excel, Microsoft Project and Microsoft Word through a connector. The solution must be responsive, reliable and designed so its core functionality can later support a web application with multiple users. Proposed functionality The initial scope will be agreed before development, using these workflows as the starting point: - Excel: Read and update worksheets, cells, tables and formulas, while preserving workbook formatting. - Microsoft Project: Read and update tasks, dates, dependencies, milestones, resources and progress, while respecting scheduling behavi...

I need a developer who can wire my existing eBay seller account directly into a custom application through the eBay REST APIs. The first priority is reliable product listing automation: pushing new items live, revising existing listings, and ending items when stock runs out, all through code rather than the web interface. Beyond listing, I also want full order-management coverage. Your integration should: • Pull fresh order details on a schedule or via webhook • Update order statuses (paid, shipped, cancelled, etc.) back to eBay • Handle return requests programmatically so I can approve, refund, or decline without logging in manually You may build in the language or framework you prefer—Python, Node.js, or similar—so long as the solution follows eBay&rs...

NOTE: You must provide the sandbox We've built a read-only NetSuite integration using OAuth 2.0 client credentials, SuiteQL and a RESTlet for downloading transaction attachments. We need someone to test our onboarding process in an existing, populated OneWorld sandbox that they have permission to use. This job covers setup and testing only. We don't need sandbox creation, data entry or application development. SANDBOX REQUIREMENTS - Vendor bills or bill credits in at least two operating subsidiaries - One vendor bill with a facility or site recorded at line level through Location, Department or Class - One PDF under 8 MB attached directly to a vendor transaction and visible on its Files subtab - OAuth 2.0, REST Web Services, SuiteAnalytics Workbook, Client SuiteScript and Ser...

I’m looking for an experienced full-stack developer to help me finish and professionally stabilize an existing SaaS product called Neirom. Neirom is already largely built and live. This is not a project starting from zero, and I do not want a complete rebuild. I need someone who can review the existing codebase, understand what is already working, fix the remaining problems, improve performance and reliability, and bring the product to a professional production-ready standard. Current Stack / Integrations Include: - React / TypeScript - Supabase / PostgreSQL - Lovable - Anthropic AI API - Paddle payments - Resend email - Shopify OAuth, product sync, and webhooks - Etsy OAuth/API integration - GitHub What I Need: 1. Full technical audit of the existing application. 2. Fix bugs and ...

We are a travel agency selling hotel rooms. Before we quote a price to a customer on our website, we want to see what the same hotel costs on , compare it with our own supplier rate, and set our price accordingly. What we need: Connect to the Demand API For a given hotel + check-in/check-out date + number of guests, pull the current price Return it to our system so we can compare it with our own rate before quoting Basic caching so we don't call the API more than necessary Handle errors and rate limits cleanly That's the core of the job. We don't need booking creation for now — just prices. Our stack: Cloudflare Workers, D1, JavaScript/TypeScript. Simple setup, no heavy build tools.

Freelance Senior Backend / AI Platform Engineer Engagement: Freelance / Contract Work arrangement: Remote Start: ASAP About the Project We are developing an AI-powered SaaS platform designed to automate complex business, document and administrative workflows. The core platform is already built and under active development. We are looking for an experienced Senior Backend / AI Platform Engineer to work alongside our existing development team to restructure, secure and strengthen the platform architecture in preparation for enterprise deployment. This is not a greenfield project. The successful freelancer will work with an existing codebase and technical team. Scope of Work 1. Onboarding & Application Boundary * Review the existing onboarding and application flow. * Restructure t...