Backend Development projects — HireLancer archive

ID / Date Listing

Browser MMORPG Development Partner Needed

I already have a browser-based RPG / MMORPG that is mostly completed and deployed on a live VPS server. The core systems are working, but there are a few remain...

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全栈Web应用开发项目

我正在为一款新 Web 应用寻找一位真正意义上的全栈工程师。项目从需求分析、架构设计，到接口开发、前端实现，再到上线部署与性能优化，都需要你一手把控。核心技术栈 •...

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Android Chat App & Backend

*Core Features 1. Real-Time Messaging One-to-one real-time chat Built using Node.js + Socket.io (or equivalent real-time engine) Messages should be delivered in...

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Meta WhatsApp Cloud API – Technical Helper Required (Short-Term, Task-Based)

I am trying to integrate WhatsApp Cloud API–based system to my ERP. My ERP is currently failing on OAuth failure with message : ✗ API Connection Failed (HTTP 40...

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Python Backend API Developer Needed

My product roadmap calls for a series of new Python-based RESTful endpoints and some refactoring of the existing backend. I want one experienced individual—no a...

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Senior Laravel Dev- Custom Email Piping Bridge (Exim4 to Laravel 12)

I am looking for a Senior Backend Developer to build a custom bridge for incoming email handling. The TMail script I am using (Laravel 12) is missing the local...

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AI-Assisted Real-Time Interviewer

Project Description (for your freelance post) I’m looking for a developer to build a real‑time AI interview assistant that listens to the interviewer’s voice du...

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GHL Affiliate → WordPress User Sync + Universal Campaign Library with User-Specific Tracking Links (AppMySite)

Overview We are extending an existing GoHighLevel (GHL) Affiliate onboarding and referral system to support a mobile app built via AppMySite. The app will authe...

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WoW Private Server CMS Theme

I’m preparing to open a World of Warcraft private server and need a complete web presence built around a custom CMS and matching fantasy-themed interface. The p...

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Custom Online Booking & Reservation Platform Development

We are looking for an experienced full-stack developer or development team to create a comprehensive online booking platform that will streamline our reservatio...

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eBay Canada API-based Trading Card Analyst

Backend Developer Needed — eBay Canada Market Insights API (Trading Cards) (Prototype-level, clean architecture, no scraping) We’re building a prototype-level b...

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CTO Needed: Accounting SaaS Backend

I’m building an accounting platform aimed squarely at professional accountants and I need someone who can wear the CTO hat from day one. Your first mission is t...

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Senior Laravel & Linux Server Expert: Email Piping (Exim4 & HestiaCP)

I am looking for a Senior Backend Developer with Linux server expertise to perform a clean installation and implement a robust Email Piping solution on a specif...

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Drag & Drop Website Builder Development

# Experienced Developer Needed: Drag & Drop Website Builder (Vweb/GrapesJS) ## Project Overview We need an experienced developer to build a complete SaaS landin...

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Modern PHP Login Page

I need a lightweight login system built from just two files: one HTML front-end and one PHP back-end. The front-end should feel modern and trendy—think clean la...

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Build Direct Booking Rental Platform - Host2Guest

We are looking for an experienced developer or development team to build Host2Guest, a web platform (and future mobile app) for direct short-term rental booking...

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Custom Trustpilot Review Management Platform (AI-assisted)

Custom Trustpilot Review Management Platform (AI-assisted) Background We operate multiple websites across different markets and receive Trustpilot reviews in se...

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Gastro project

Project: Comprehensive Operational & Management Dashboard for a Gastronomy Network 1. Purpose and Strategic Objectives The purpose of this project is to build a...

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Build Complete AI Voice Receptionist SaaS Platform

I need an experienced full-stack developer to build a complete AI voice receptionist SaaS platform from scratch. This will be my proprietary platform that I wil...

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Web app developer for an employment platform needed -- 2

I am developing a web-based platform to support job seeker. A version of the app is developed already but I need some modifications. Platform also needs to be d...

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Android App: Mobile App Developer Needed to Build App Similar to Existing Application

Job Description: I am looking for a skilled mobile application developer to build a mobile app similar to the Auto Ride Accepter app linked above. The purpose o...

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Developers Needed For Free Client Matches

I’m launching Techlancer—a zero-fee platform built to connect verified developers with paying clients. If you’re a developer looking to grow your client base wi...

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AI Application Developer with LLM expertise

We’re looking for a highly skilled and motivated developer with a strong background in Large Language Model (LLM) application development and production-grade s...

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I need an Android Mobile Dating App. ChatGPT intigration.

Core Purpose of the App:- “This is a platform where people don’t just talk — they open their hearts, love, build connections, and even earn.” It combines: An em...

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Instant Astrology Report Website Development

We are seeking a skilled web developer to create a user-friendly and visually appealing website for astrology results. The site should feature personalized astr...

HL-40160634

Dezvoltare aplicație mobilă forum

Îmi doresc o aplicație pentru un forum in Romania, cu un dezvoltator roman, disponibilă atât pe iOS, cât și pe Android, cu trei funcționalități esențiale încă d...

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Node-React MongoDB SaaS Architecture

I need a clean, scalable foundation for a new SaaS product built strictly with Node.js on the backend, React.js on the frontend, and MongoDB for persistence. I...

HL-40160405

Create a Nonprofit Mobile-Responsive Web Platform

Hi I will share the details with the shortlisted candidates. Thanks

HL-40160417

FlightHub 2 REST API Integration

I need help integrating the FlightHub 2 REST API. Key Requirements: - API integration expertise, specifically with REST APIs. - Experience with FlightHub 2 plat...

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Anonymous Exchange Mobile App

I’m launching a community-driven exchange where every member can post what they’re happy to give and what they’d love to receive, then connect in a safe, anonym...

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Inbound AI Call Agent + CRM Platform

AI Voice Call Agent + CRM Integration (Node.js + React + React Native) We need a production-ready AI agent that answers inbound phone calls, talks naturally, co...

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Data Evaluation Web App

I need a web app to insert and evaluate text data. The data will be used to create a Gantt chart and generate an AI prompt. Requirements: - Support for plain te...

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Shopify Expert Needed – Dynamic Pricing Based on Width & Height (Cart + Checkout)

I’m building a Shopify store that sells made-to-measure curtains. Every order’s price must be calculated from the shopper’s width and height inputs, then carrie...

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WhatsApp Messaging Platform Development

Hiring Developer to Build WhatsApp Messaging Platform Using Meta API Hello, We are looking to hire an experienced developer (or development team) to build a Wha...

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Cross-Platform Duolingo-Style App

I’m ready to build a full Duolingo-style experience that works seamlessly on iOS, Android, and the web. Phase one will launch with an English course only, but t...

HL-40159815

Full-Stack Developer with AI/LLM Expertise

Role: Full-Stack Developer with AI / LLM Experience (EdTech / Evaluation Systems) Responsibilities: Build a complete web platform (frontend + backend) for gover...

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Comprehensive Freelancer Platform Creation

*Project Title: Freelancer Platform Development* *Objective:* To create a comprehensive online platform for freelancers to showcase their skills, connect with p...

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Chrome Extension for Job Application Automation

Jobs Auto Apply Extension* We are building a job application automation system centered around a Chrome browser extension that auto-fills job applications acros...

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Experienced Laravel Backend Developer

To transform our site into a modern, high-converting platform like GotPrint, you need a two-phased hiring approach. Since our site is built with PHP/Laravel, we...

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Senior Full-Stack Engineer (Agentic AI + FinTech) – Stock Adviser Platform

We are building a B2B, multi-tenant portfolio intelligence platform for Australian financial advisers (ASX-focused). The system includes an agent/orchestration...