API Development projects — HireLancer archive

ID / Date Listing

Extend CRM Functionality in GoHighLevel Workspace

I’m ready to extend my GoHighLevel workspace with a purpose-built module focused on richer CRM functionality. What I need built • A custom CRM feature set that...

HL-40292031

Service Platform Development - US Market

**PLEASE READ THE PROJECT FIRST** Project Brief: Service-Based Platform (US Market) 1. Service Catalog & AI Visuals Requirement: Populate the service catalog wi...

HL-40292055

Domain Marketplace Website Build

NEED TO SHOW A SIMILAR PROJECT DONE. DO NOT BID IF YOU HAVEN'T MADE A PROJECT SIMILAR TO THIS. I want to launch a full-featured marketplace where premium and st...

HL-40292056

SaaS Rental Management Platform Build

I need a full-stack partner to create a rental management platform that works as a true multi-tenant SaaS. Each subscribing company must be able to sign up, rec...

HL-40292075

Multi-Vendor E-Commerce App Build

I need a full-featured, small-scale multi-vendor marketplace built natively for both Android and iOS. The app has to let any store—regardless of product type—op...

HL-40292108

Cross-Platform Marketplace App with Node

I need a robust buy-and-sell marketplace built as two fully-native apps—one for iOS (Swift / SwiftUI) and one for Android (Kotlin). Core user flows are product...

HL-40291642

SaaS for property energy management

This project is a SaaS platform for property energy management and automated billing designed for property owners and building managers. The system will integra...

HL-40291673

Node.js RESTful API Backend

I’m building out a new React front-end and now need the server side to catch up. The priority is a robust Node.js backend that exposes well-structured RESTful e...

HL-40291055

C# AS4 sending and listening messages

• Description The objective is to create a prototype that sends our XML string via AS4 to a destination URL. You can start with dummy for now, but we will test...

HL-40291519

Automated Google Review Responder

I need a compact service that listens for every new Google Business review I receive and immediately posts a professional-sounding reply. The system must distin...

HL-40289935

I need some who reskin my codecanyon saas tool

Hey we have codecanyon saas whatsapp marketing tool https://codecanyon.net/item/ovowpp-complete-cross-platform-whatsapp-crm-and-marketing-tool-web-and-mobile-ap...

HL-40291294

Solana Integration & AWS Deployment

Please Note Before Proceeding Below: **This is a small initial project with a limited budget to evaluate the developer’s understanding and quality of work. Once...

HL-40291302

API-Driven Automated Service Website

I have the core pages of an online service–providing site sketched out, but everything still runs manually in the background. I now need the entire flow rebuilt...

HL-40291195

Integración API Binance P2P Python

Busco ayuda para conectar, Python la API de Binance con énfasis en el módulo P2P. Necesito poder enviar desde la API comprante de pago al chat de una orden P2P....

HL-40291203

WiFi Modbus Gateway for Danfoss EKC 202C

Project Overview This project aims to develop a small WiFi gateway that connects to a Danfoss EKC 202C refrigeration controller via Modbus RTU (RS-485) and prov...

HL-40289682

I need experience Long-Term Laravel & Flutter Development

I’m putting together a multi-phase product that spans a Laravel web back-end and a Flutter mobile front-end, and I want one reliable developer who can stay with...

HL-40291126

Facebook & Instagram Lead Generation Ads for Job Recruitment (West Bengal)

**Project Description** We are looking for an experienced **Meta Ads (Facebook & Instagram) expert** who can generate leads for **female job recruitment** in **...

HL-40291145

Fullstack Engineer Needed - Latin America

About the Role As a Senior Fullstack Engineer, you will own the technical health and architectural evolution of mission-critical web applications. You will act...

HL-40291147

Chrome E-Commerce Automation Tool

I am building an AI-driven workflow that takes products from Amazon and publishes them on eBay automatically. The core of the job is a Chrome-based extension to...

HL-40291167

AppPresser BuddyPress Deletion Fix

Within my AppPresser-based mobile app I already expose BuddyPress settings, and the account-deletion button is visible to logged-in users. When it is tapped, ho...

HL-40290925

HF RFID Poker Table Hardware

I’m building an automated live-play poker table and need the complete RFID hardware blueprint that will let software read every chip on the felt in real time. T...

HL-40290923

AI-Powered Freelancer Automation and Bid Management System

This is a personal automation project designed to streamline freelance opportunity discovery, project evaluation, bid preparation, and client follow-up using Py...

HL-40290958

Resolve Python aws knowledge ai expert Krackend Bug using team viewer

I have a production-level bugs who can connect right now in TeamViewer and help in fixing production issue looking is super expert in ai and aws python

HL-40290962

Python Scraper & API Enrichment

I need a Python-based solution that automatically gathers companies and shareholders data, pulls supplementary details via external APIs, and outputs a clean, u...

HL-40290989

AI Full-Stack Developer Needed

No experience or past work? Never mind, send your proposal. If you're good at communication, I'd love to talk. You're free to use AI coding tools or anything. F...

HL-40290881

Automate Billing & Domain Launch

Our existing subscription platform (React + Express on Replit with Supabase) needs two tightly-scoped automations completed and deployed. Payment flow (target 1...

HL-40290715

Build InfoPath-Style Form Creator

Hi Freaks and Nerds, I'm looking to start a new Project together with an enthusiastic tech-freak on a couple of new ideas. Overall the thought can be described...

HL-40290716

POS Prototype with Future Expansion

I’m kicking off a step-by-step build of a full ERP suite, starting with a lean POS prototype. For this first milestone I only need the sales-transaction module,...

HL-40290739

Innovative Accounting Software Development

Key Responsibilities • Analyze existing accounting software such as Sage, QuickBooks, Zoho Books, and Xero. • Suggest innovative features and improvements for a...

HL-40290567

Build CRM SaaS Platform

I’m launching a subscription-based CRM and need a developer who can turn my specification into a secure, multi-tenant web application. The product must ship wit...

HL-40290279

Laravel Expert for POS/Inventory System Finalization

Laravel Developer Needed to Review and Finalize Existing POS / Inventory System We have a custom-built POS and Inventory Management System already developed and...

HL-40290069

Enhance UK Property Portal

We are looking for an experienced PHP CodeIgniter developer to help improve and add new features to our UK property portal. The developer will work on our exist...

HL-40290086

构建多交易所加密货币套利交易系统

我们需要开发一个支持多种套利策略的加密货币套利交易系统，具体要求如下： 1) 目标构建一个多交易所加密货币套利交易系统，该系统： • 通过 API 连接多个交易所 • 监控实...

HL-40290092

Fix WhatsApp Cloud API Messaging (to)send Business-Initiated WhatsApp messages)

Business-Initiated WhatsApp messages not working ✔ API code is correct ✔ Phone Number ID is correct ✔ Access token is valid ✔ Template is working ✔ Messaging li...

HL-40289949

Phishing Risk Scoring System

I need a phishing-detection solution that scans both incoming Gmail messages and any links users encounter on the web, assigns each item a percentage-based risk...

HL-40289826

Daters- dating coach Mobile application

TL;DR: Senior Developer needed to build "Daters," a coaching-centric dating app. You'll lead the end-to-end development of a high-fidelity calling system, integ...

HL-40289756

Vehicle Details Lookup

I want a straightforward tool that lets users type an Indian vehicle registration number and instantly see its official details. The solution must come in two f...

HL-40289620

Cross-Platform for Simple Database for Enquiy and Demo with dropdown Menu, Admin and User roles, Dashboard, Backup and Restore -- 2

I need an end-to-end order processing and delivery solution that runs smoothly on the web, Android, and iOS. The entire system will be used exclusively by admin...

HL-40289566

Custom Data Processing Software Development -- 2

Project Description I am looking for a developer to build a web-based multi-vendor catalog platform where vendors can upload product catalogs and customers can...

HL-40289352

Service-Based Company Digital Platform Development

I am looking for an experienced developer or team to build a complete digital platform for my service-based company. My company provides cleaning staff and help...