API Development projects — HireLancer archive

ID / Date Listing

WhatsApp Media Sender Website

I need a clean, browser-based platform that lets logged-in users send any content the official WhatsApp Business Cloud API accepts—plain text, images, video, au...

HL-40606230

Android EMI Payment Locker

I need an Android-only locker application that can remotely lock a customer’s phone whenever an EMI payment is missed. The lock itself will be triggered manuall...

HL-40606080

试玩广告平台开发111 -- 2

我计划搭建一套试玩广告平台，核心场景是“试玩广告”投放与管理。平台需满足以下要点： • 广告类型支持：必须完整支持试玩广告与展示广告；如未来需要，可预留扩展原生广告...

HL-40605903

FiveM Player Interaction Scripts

I’m building out a FiveM server and need a skilled scripter to create custom gameplay scripts focused on player-to-player interaction. In practical terms, I wan...

HL-40605824

Laravel Flutter Ecommerce Platform

I am building a complete e-commerce ecosystem that works seamlessly on the web and on both iOS and Android devices. Laravel will power the backend and the brows...

HL-40605867

SavTrax Finance App Development (React native/Node.js) -- 2

Development of SavTrax – Personal Finance Tracking & Saving Application (Flutter + Node.js) --- Project Overview: We are looking for a small development agency...

HL-40605735

Aplikasi Penghitung Kalori Pintar - 26/07/2026 05:46 EDT

Saya sedang menyiapkan MVP aplikasi kebugaran yang berfokus satu hal: membantu pengguna menghitung kalori harian mereka secepat mungkin. Fitur kunci yang harus...

HL-40605703

Aplikasi Penghitung Kalori Pintar

Saya sedang menyiapkan MVP aplikasi kebugaran yang berfokus satu hal: membantu pengguna menghitung kalori harian mereka secepat mungkin. Fitur kunci yang harus...

HL-40605331

Automated GST E-Invoice Upload

My custom-built billing cart (PHP with a MySQL back end) already generates the IRN-ready JSON for every sale. What I still lack is an automated way to place tha...

HL-40605345

GCP Text Extraction Cloud Functions

I need two concise Python scripts that I can drop straight into Google Cloud Functions. Their entire purpose is data processing on incoming text: each function...

HL-40605362

Android Local Shop Ecosystem App

I want to bring my neighbourhood store network onto a single Android app so customers can browse nearby products, place orders, and arrange pick-up or delivery...

HL-40605393

AI News Automation Platform Development -- 2

Worldwide AI News Automation System: Build a fully automated, high-quality worldwide AI news platform using Groq and free APIs with no recurring paid API cost u...

HL-40605250

Migrar C legacy a FreeSWITCH

Tengo un desarrollo bastante antiguo escrito en C que hoy corre sobre placas NMS para un servicio de chat telefónico. Quiero llevar esa lógica a un entorno VoIP...

HL-40605303

Web-based Attendance and Payroll System -- 2

I'm seeking a developer to create a web-based attendance and payroll system. Core functionalities needed: - Employee clock-in/out - Payroll calculation - Leave...

HL-40605114

Raspberry Pi 4 ACH Crypto Wallet

I need a secure hardware wallet built on a Raspberry Pi 4 that not only stores roughly forty major cryptocurrencies and supports on-device swaps, but—most impor...

HL-40604711

Marketplace API Access & Integration

We are AQ International, operator of DAN Mall, a cross-border e-commerce platform serving the Yemeni market (40M+ consumers). We require a consultant/freelancer...

HL-40604752

WhatsApp API Integrated Website

Hi, I'm looking for a developer to build a simple website with WhatsApp API integration. **Project Requirements:** * Create a registration page with only: * Ful...

HL-40604662

Desenvolvimento do App "Cidadão Ativo"

Projeto: Cidadão Ativo A voz da comunidade. A solução começa aqui. Visão Criar uma plataforma nacional onde qualquer cidadão possa comunicar problemas do seu ba...

HL-40604587

BACKEND LEAD ENGINEER

Node.js Backend Lead Engineer

HL-40604618

Complete Node.js Sitemap System

Project Description I have a custom-built Node.js news website (not WordPress) with over 3,500 published articles. I am looking for an experienced Node.js devel...

HL-40604474

Prototype Wearable Contactless Payment Device

I need a working proof-of-concept: a compact wearable that accepts payments from my proprietary contactless card and houses a SIM-enabled module to forward each...

HL-40604476

Build a Centralized Custom WhatsApp Chatbot System (PHP/MySQL) + Server Setup & Maintenance Contract

Project Description Overview: We are looking for an expert developer to build a comprehensive, automated WhatsApp Chatbot system for our commercial group and it...

HL-40604450

USB-C Data Exchange Productivity App

I’m looking to build a focused productivity application that lets two computers communicate directly over a USB-C cable. The primary goal is smooth “Apks and de...

HL-40604299

Android WhatsApp & SMS Trigger Button

I already have WhatsApp messaging fully configured on the web portal and everything works there. What is missing is the same convenience inside the Android app:...

HL-40604208

Google Play Compliance Update for Existing WebView App

# Android Developer Needed - Google Play Compliance Update for Existing WebView App I'm looking for an experienced Android developer to update my existing Andro...

HL-40604224

Dental Clinic FAQ Bot API

I need a lightweight, API-driven bot that can sit behind our website and patient app and instantly answer the three questions we get every day: current service...

HL-40604125

Payment Gateway Assistance

I’d like your help integrating a secure payment gateway into my application. The main goal is to configure, test, and deploy a fully functional checkout flow th...

HL-40604009

Telegram Bot for Ad Management

I am looking for an experienced Telegram Bot Developer to build a custom Telegram bot. The main purpose of this bot is to display advertisements/tasks to users...

HL-40604035

Fix Meta WhatsApp API Failures

My self-hosted CRM (running on an on-premises server) is already integrated with a Meta App so I can broadcast marketing messages to my users through the WhatsA...

HL-40604057

Python Navia Algo Platform

I’m building an end-to-end algorithmic trading application in Python that talks directly to the Navia broker APIs. The priority is a rock-solid, low-latency API...

HL-40603916

Auto Booking App Build Needed

I want to turn a simple idea—hassle-free auto bookings—into a polished mobile app. The core flow is straightforward: a user opens the app, chooses the type of a...

HL-40603900

Odoo Persian Calendar Converter

I need a robust Jalali calendar add-on for my Odoo installation that can convert dates both from Gregorian to Persian and back again, seamlessly and accurately....

HL-40603687

Cloud-Based Pharmacy Management Web App

Develop a cloud web application with the below features Pharmacy Portal / PWA Login, product search, cart, order placement, repeat order, order history Product...

HL-40603712

Remote Email Monitoring Tool

I need a Windows-based solution that lets me watch, in real time, how the twenty company email accounts on our internal domain are being used. The core requirem...

HL-40603744

Bangun Situs E-Commerce Sederhana

Saya membutuhkan bantuan untuk mengembangkan sebuah situs E-commerce dasar. Fokus utama saya adalah memiliki fitur keranjang belanja yang berfungsi mulus sehing...

HL-40603509

Crear equipo de agentes para Monitoreo Web y Documentación

Mentoría para crear un Equipo Agéntico para Monitoreo Web y Generación de Documentos corriendo en web tipo vps Plan de acompañamiento — 4 sesiones 1. Objetivo d...

HL-40603234

Roblox GAG2 PvP Coinflip Site

I need a real-time, MERN-based platform that lets Grow a Garden 2 players wager their in-game currency and items in head-to-head coinflips, plus a few extra min...

HL-40603132

NEXT.JS & PHP Guru Needed

Looking for a highly experienced Developer in NEXT.JS, PHP with atleast 8+ years of experience in both. please share links to your work when posting a bid, and...

HL-40603161

Middleware Integration Connector - Storyous REST API to Pohoda mServer (XML)

Project Title: Middleware Integration Connector - Storyous REST API to Pohoda mServer (XML) Overview: We require an automated integration bridge (a custom middl...

HL-40602981

Usage-Based Billing Software Development

I'm looking for an experienced developer to create cloud billing software primarily for usage-based billing. Essential Features: - Real-time usage tracking - Au...