Backend Development projects — HireLancer archive

ID / Date Listing

HL-40120169

Software Web Órdenes Servicio

Necesito una aplicación web que me permita; 1. Objetivo del proyecto Se requiere desarrollar una aplicación web de gestión de órdenes de servicio de mantenimien...

HL-40119972

Flutter Course Registration System

1. Overview This system is designed to allow users to register for courses. Multiple foundations (partners) can offer courses for a fee, and users can sign up a...

HL-40119981

Wellness Subscription App iOS Android

I’m launching a subscription-based mobile platform for both Android and iOS that blends mental wellness with physical fitness. The heart of the product is premi...

HL-40119996

Buy/Finalize: Production Ready .NET Poker System (MS SQL & Binary WebSockets Required)

We are looking to acquire and finalize a high-performance, production-ready Texas Hold'em Multiplayer system. We are NOT looking to start from scratch. Our goal...

HL-40119695

Enhancing RideTogether Motor Community App/website

Project: RideTogether – Motor Community App (Web/App) Website (live development environment): https://ridetogether.cocsapp.xyz/ Candidates are encouraged to reg...

HL-40119582

Patent / Senior Back-end Engineer -- 2

Phase 1: Patent Technical Review (5-15 hours) We have a draft patent specification for a real-time interactive entertainment platform. We need a senior engineer...

HL-40119626

iOS College Poll Predictor

I’m ready to turn my college-football prediction idea into a polished, App-Store-ready iOS application. The concept is simple: every week fans log in, predict w...

HL-40119488

Loja Online de Ímanes Personalizados

Quero lançar um e-commerce simples, emocional e intuitivo onde o utilizador possa transformar as suas fotografias em ímanes de forma rápida e sem fricção. A exp...

HL-40119514

Real-Money 1v1 Reaction Game

I need an end-to-end build of an Android-only, skill-based reaction game where two players compete in real time. The core mechanic is simple: each round shows a...

HL-40119358

APP Development - Audio Based Application

Application Development PROJECT OVERVIEW - APP Development This app is focused on audio interactions, live voice/video calls, and creator earnings. Audio is the...

HL-40119169

Astrology Live Chat App Development

I'm looking for an experienced developer to create an astrology-focused app similar to AstroTalk. The primary function of the app will be live chat between cons...

HL-40119084

New Software Application Development

I need a brand-new application built from the ground up. This is a pure Software Development assignment—no bug fixing or modification of existing code bases—so...

HL-40118936

Backend engineer for fixing app script document endpoint

Fix our Google Data Script and build a stable endpoint that generates user‑specific document links and feeds them into our beta‑signup flow. You’ll handle: Repa...

HL-40118981

Subscription IAP & Push Integration

My mobile app, fastdials, is live and functioning, but it is still missing two key features: paid subscriptions on iOS and rich push notifications on both iOS a...

HL-40118823

Firebase Authentication Setup

I need an experienced Firebase engineer to configure a brand-new project in the Firebase Console and wire up all authentication options in a single mobile / web...

HL-40118853

App Cloud Retail con Sconti

Devo realizzare un’applicazione collegata al cloud Hetzner, accessibile via browser e come app nativa su iOS e Android. L’obiettivo immediato è un MVP leggero p...

HL-40118863

Android Recharge & Bill Pay App -- 2

I need a full-featured Android application that lets users top up their mobile phones, recharge DTH subscriptions, and pay routine utility bills—all in one plac...

HL-40118360

Aviation Shiksha: Full-Stack Website Development

I am looking for a skilled freelancer/team who can handle BOTH FRONTEND and BACKEND development for my website “Aviation Shiksha”. IMPORTANT: • This is a FIXED-...

HL-40118440

Restore WordPress Plugin Crash

My Divi-based WordPress 6.9 site suddenly threw a fatal error and now shows the white screen of death. The root of the crash is a E_COMPILE_ERROR coming from WP...

HL-40117640

Resolve Phone Verification Error

Phone verification in my app stalls every time it reaches the code-generation step and throws a system error before the SMS can be sent. Email and identity chec...

HL-40117841

Finish Pub Website Build

The site you’ll be working on is already about 80 % complete and lives in the Files folder I’ve shared. My benchmark is https://www.guardianpubs.com/—by the tim...

HL-40117872

React Native Mobile App Development

I am looking for an experienced React Native developer to build a clean, professional, and scalable mobile application. • App Overview The app will be developed...

HL-40117781

Entry-Level Flutter App & Site

I have a straightforward, portfolio-worthy project and I’d like to hand it to a motivated junior developer who is ready for real-world experience. The job is to...

HL-40117569

Senior Software Architect Needed: High-Frequency Inventory Mirroring Platform (Reverse Engineering & Fintech)

1. Executive Summary We are a Tier-1 Auto Dealership located in Miami (Doral), aiming to disrupt the wholesale-to-retail market. We are seeking a highly qualifi...

HL-40117635

Custom Website Development Needed

I have a web application project that is build with [login to view URL] on the front-end and Node.js on the back-end. The core scope centers on secure user auth...

HL-40117118

Help Fix: Stripe Webhook Troubleshooting & Integration Support

We are seeking an experienced freelancer with strong Stripe integration expertise to diagnose and resolve Stripe webhook issues across our websites. The ideal c...

HL-40117132

Skill Booking Marketplace App -- 2

No placeholder bids only really bid will be considered help me develop a mobile marketplace that lets people buy and sell individual skill sessions. At launch t...

HL-40117100

Shopify Geofenced Delivery Module

Necesito desarrollar un módulo para mi tienda Shopify que, apenas el cliente entra al sitio web, le pida su ubicación mediante GPS automático o permitiendo que...

HL-40116992

Flutter App & Node.js Backend

I’m building a Flutter mobile app and need the server side put together in Node.js. The backend must handle secure user authentication, store and retrieve data...

HL-40116875

Health Education Mobile App

I’m building a mobile application whose sole focus is health education, delivered through high-quality written content and a supportive discussion forum. The co...

HL-40116869

Zhvillimi i një Aplikacioni OTT për IPTV -- 2

Po kërkoj një zhvillues për të krijuar një aplikacion OTT ku abonuesit mund të hyjnë duke përdorur emrin e përdoruesit dhe fjalëkalimin e tyre. Aplikacioni duhe...

HL-40116740

Full Time Django Developer

We want to hire a full time Django Developer with 3+ years of experience. Having expertise in: 1. Django Rest Framework 2. System Design, Database Design + RBAC...

HL-40116637

Property management app

I need an Android app MVP for landlords to: • Add properties • Add tenants • Track rent (paid/unpaid) • View a simple dashboard • Send automated SMS + WhatsApp...

HL-40116686

FastAPI Product API Development

I’m extending a web application and need a focused FastAPI backend that handles all product-related operations. The service must expose clean, REST-style endpoi...

HL-40116499

Senior CodeIgniter Developer Needed

I have an existing CodeIgniter Software as web application with MySQL. I need someone who can work live via remote access. Person should be atleast 5 years expe...

HL-40116506

Freelancer to merge driver and customer apps into a single application

Hello, how are you? I am looking for an experienced freelancer for a specific and straightforward task. I already have the complete source code of a ride-hailin...

HL-40116328

Zombie Tycoon Simulator with Subscriptions

I want to bring a mobile-first Zombie Tycoon to Google Play that plays like a deep but approachable simulation. The core loop centres on building, upgrading and...

HL-40116022

AI Tabanlı Endüstriyel Teklif Otomasyonu (Mobil + Web + WhatsApp)

İlk MVP’yi WhatsApp Business API üzerinde kurgulayarak, kullanıcıların standart mekanik ekipman için Ölçü, Kapasite ve Adet bilgilerini yazıp göndermeleriyle ba...

HL-40116043

Android Audio Storytelling App

I need a complete Android application that delivers spoken stories—much like Pocket FM—but focused solely on the Android ecosystem. The catalogue will mix both...

HL-40116062

High-quality Solana Atomic Arbitrage Bot Development

Solana Atomic Arbitrage Bot (Jupiter + Jito) – Tools-Focused Role We are hiring an experienced Solana backend developer to build a production-grade atomic arbit...