API Development projects — HireLancer archive

ID / Date Listing

Android Broiler Farm Manager

I’m building a mobile-first system that lets me run every step of my broiler contract-farming business from a single place. The primary client will be an Androi...

HL-40393510

Connect GHL SaaS to Supabase Backend

I have an AI-studio, multi-tenant SaaS that I built on the GoHighLevel (GHL) platform and I’m ready to shift its user management and core data to Supabase. My i...

HL-40393550

Web3 Token Signals Platform Development

We are building a Web3 token signals platform and looking for a strong freelance developer to help us bring it to life The platform is designed as an intelligen...

HL-40393385

Marketing API & Scraper SaaS Build

I’m building a SaaS platform that blends three pillars—an interaction-focused marketing API, a Google search scraper, and Instagram marketing automation—into on...

HL-40393270

Buyer-Seller Chat Integration for plot

I want to embed a real-time chat module on my site so that registered plot buyers and sellers can talk to each other in the same way users do on Freelancer.com....

HL-40393311

Automated News Summary Podcast

I need a solution to automate the generation of a summary podcast from news articles, publications, and substacks. The output should be an mp4 file. Requirement...

HL-40393147

WhatsApp Business Data-Collect Chatbot

I need a WhatsApp Business chatbot that greets visitors, answers their basic questions, and—most importantly—captures structured information I can act on. The b...

HL-40393150

eBay Listing Automation Bot Development

I’m an eBay dropshipper and I’m looking to hire someone to build a fast, reliable listing bot. I’ll explain exactly what I need: * I source products from AliExp...

HL-40393156

WeChat Mini Program Protocol-Level Auto-Purchasing (Sniping) Tool Development

Requirements Document: WeChat Mini Program Protocol-Level Auto-Purchasing (Sniping) Tool Development 1. Project Overview The objective of this project is to dev...

HL-40393008

C# programmer for correction of existing program

have an existing voting systems program, SQLite, that has a glitch in the disability section that needs correcting. Source code Available Program on individual...

HL-40393055

Full-Stack Developer for Web APP Construction

Senior Full-Stack Developer Needed – Build & Integrate Web APP We are looking for a highly capable full-stack developer to take our existing frontend concepts a...

HL-40392885

FPS Esports Tournament Portal Development

I need a clean, responsive website that lets me run and manage first-person-shooter tournaments from one place. Players must be able to create an account, join...

HL-40392898

Custom Gateway Integration for PHP Site

My PHP-based website is already up and running; the only thing left is to hook it to a Chinese payment gateway so customers can complete their orders without le...

HL-40392762

Trendyol API Panel Bakımı

Mevcut e-ticaret operasyonumuz, Trendyol ve İkas API’leriyle konuşan özel bir yönetim paneli üzerinde dönüyor. Artık bu sistemi size devrederek hem detaylı bir...

HL-40392797

Chrome Extension (MV3) – Fix 403 API Issue (Headers/Cookies/Session)

I have a Manifest V3 Chrome extension that automates visa-appointment scheduling by extracting session tokens, fetching open slots, and submitting the final for...

HL-40392827

Direct WhatsApp Cloud API Integration

My jewellery SaaS already runs on Next.js for the frontend and Node.js for the backend. What I now need is a seamless, first-party WhatsApp Business integration...

HL-40392631

B2B Website with AI Chatbot + Future CRM Integration (Scalable Platform)

Description: We are looking for an experienced developer or team to validate and potentially execute a B2B website project with AI integration for an industrial...

HL-40392152

Task Approval Mobile App and Website Development

need to develop android and ios mobile app as well as website for tasks approval (example : for official works, technicians, workers, supervisors, managers used...

HL-40392166

Resolve Flutter Laravel Store Integration Issues

PFA for detailed requirements. Timing In a week, if possible Payment: After the job is complete DO NOT apply if you can't start work immediately or need payment...

HL-40392217

Senior Full-Stack Developer — Complete 6 Modules on Production Logistics Platform (NestJS + Next.js + Expo)

About the Project LDX is a production freight & customs platform for a Canadian/US cross-border trucking brokerage. Core is shipping — multi-tenant auth, loads,...

HL-40392237

Long-Term Full-Stack Developer Needed

We're seeking 1-2 full-stack developers to join our team. You'll work on a 50/50 split between client projects and internal product development (with potential...

HL-40392013

Django REST API Development Needed

The database is already designed and the frontend is being handled by a separate developer. We need a skilled Django developer to write the REST APIs that power...

HL-40392110

Senior Full-Stack Development Contract

We are looking for a skilled Full-Stack Developer based in Armenia with strong English communication skills to join us on a contract basis. This role is ideal f...

HL-40392118

WordPress Booking System for Hair Salon

I’m launching a new WordPress-based booking portal for a hair salon and I need the full reservation workflow built and perfectly synchronized with Planity. Core...

HL-40391907

PHP OTP Verification Script

I need a compact PHP module that can be dropped into both my web and mobile back-ends. When a user triggers an OTP request, the script should: • check our MySQL...

HL-40391926

AI Note Conversion Study Platform

I’m creating a student-friendly web app, much like Note2PDF, that streamlines the entire note-taking workflow with artificial intelligence. A learner will be ab...

HL-40391540

Meta Reservation Event CAPI Integration

I need the “reservation” event from Browco.com.au firing to Meta via the Conversion API—not through GTM or a plugin, but with a clean, manually injected code sn...

HL-40391445

Custom SaaS MVP: Refund Tracking Web App

Custom responsive web app with user accounts, dashboard, manual entry, email forwarding + parsing, status workflows, notifications, basic admin. Mobile-first, G...

HL-40391307

Comprehensive Digital Presence Development

I am building a unified SaaS platform that bundles four client-facing tools—Google review management, a no-code website builder, a digital v-card creator, and a...

HL-40391241

Looking for Expert Full Stack Developer (Next.js + Laravel) – Long Term Project

I’m looking for a highly experienced full stack developer who specializes in Next.js (frontend) and Laravel (backend) to work on a large-scale eCommerce platfor...

HL-40390989

Patient Monitoring Mobile App

I’m building the first product for my health-tech startup: a cross-platform mobile app focused on continuous patient monitoring. The core workflow is simple—pat...

HL-40390994

Herramienta de Verificación de Comprobantes de Pago

buscamos un desarrollador backend para crear un Bot de Telegram que prevenga fraudes por duplicidad de comprobantes de pago y agilice las entregas de nuestro eq...

HL-40390848

Social Media App Optimization - 22/04/2026 12:48 EDT

My social media app is experiencing high traffic, and I need an expert to optimize its performance. Key Requirements: - High Traffic Handling: Ensure the app ca...

HL-40390896

Dual-Platform Inventory System

I want a full-fledged inventory management solution that runs both in the browser or as a standalone desktop application. SQL will be the single source of truth...

HL-40390902

Dynamic URL System with NFC/QR Code

Overview: I need a system for managing dynamic URLs used with NFC and QR code products. Each item will have a unique short URL that can be updated after creatio...

HL-40390719

Social Media Integration API Website

I’m building a new web-based marketing platform whose core job is to act as a single API layer for the major social channels I use every day. In this first phas...

HL-40390784

Urgent Mobile App Developer Needed to Fix OTP Country Code Issue (Flutter/Android/iOS)

I urgently need an experienced mobile app developer to resolve a persistent OTP issue in my application, where the system always sends the phone number with cou...

HL-40390623

Complete React POS ERP App

The project is a vegetable & fruit selling platform with built-in POS and mini-ERP functionality. About 80 % of the React interface is already in place and runn...

HL-40390455

Xiaozhi Firmware Endpoint Update

I maintain the open-source XiaoZhi—Xiaolong intelligent chat toy shown at https://xiaozhi.me/ and am moving it to a self-hosted backend. All I need inside the f...

HL-40390527

Advanced Real Estate SaaS Platform Development - Build BookMyDisha.com – Premium Real Estate SaaS Platform (Next.js + NestJS)

We are building BookMyDisha.com, a modern, scalable real estate SaaS platform inspired by platforms like MagicBricks and Housing.com — but designed to be more a...