Backend Development projects — HireLancer archive

ID / Date Listing

App multiplataforma para comunidades

Plan de Pago – Hito 1 (200 €) Proyecto Comunidad 360 El Hito 1, con un coste total de 200 €, se divide en tres fases de pago vinculadas a entregables claros y v...

HL-39842104

GlobeTrotter -- 2

create a global social media platform with relationships among users based on common characteristics among global trotters. Functional Requirements: -gyrating w...

HL-39841616

Digital Data Library Search Upgrade

I need my current digital data library upgraded so it can confidently handle multimedia files—video, audio, and high-resolution images—without breaking a sweat....

HL-39841652

Finalizar proyecto C# con SQL

Mi aplicación en C# y SQL Server está iniciada pero todavía le faltan bloques clave. Necesito a alguien que tome el código existente y lo lleve a la meta, centr...

HL-39841089

Buat Aplikasi Sosial Android

Saya ingin merealisasikan sebuah aplikasi media sosial khusus Android. Fokus saya adalah mendapatkan versi awal yang stabil—mulai dari rancangan UI sederhana, f...

HL-39841155

Website Offerwall & Points Integration

Project Title: Integrating Offer Walls, Postbacks, User Points, and Points Calculation Notifications Project Description: I am looking for a professional develo...

HL-39840830

AI station

I’ve already built a full-stack AI platform that blends content creation, image generation, and productivity tools. It runs on a Node.js + Express.js API backed...

HL-39840860

Backend Development for Startup Community Platform

We are building a startup community web platform. The complete frontend design (HTML, CSS, Figma) is already done – now we are looking for a skilled backend dev...

HL-39840758

MongoDB Multi-Tenant Architecture Support

I have a React-based backend running on MongoDB and I want to move to a true multi-tenant setup that keeps every client in a separate database. My priority is t...

HL-39840768

Database- Backend Development

I’m looking for a seasoned engineer who can own everything that sits between my application logic and the data layer. The project already runs in a clean Docker...

HL-39840494

Mejora del Planificador de Viajes 2xAsia

2xAsia Trip Planner 4.1 (virtual pages) es un plugin de Wordpress que permite a los usuarios planificar un viaje, guardar puntos/lugares con fechas/horas/notas,...

HL-39840507

Read First ~ Web Application Developer with Gemini API Experience

Incomplete proposals—those missing any required item—will be flagged as spam. We are seeking a skilled developer to build a web application that leverages the G...

HL-39840148

Download de Músicas do Deezer em NodeJS

Preciso de um script em NodeJS que baixa músicas do Deezer em formato mp3 usando um ID de música. Já tenho uma conta de desenvolvedor na Deezer. Requisitos: - M...

HL-39840037

Develop a Rider and driver app

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

HL-39839866

Consulting Profitability Web App Developer Wanted

Hello! We are a team working for a consulting company. We are looking for a developer to create a simple web app that allows us to evaluate the feasibility and...

HL-39839895

PWA Development for Financial Viability Tool

We are the marketing division of a consulting company, and we are looking to develop a professional Progressive Web App (PWA) that will be used internally to ev...

HL-39839784

Helicopter Seat Booking System Development - 01/10/2025 08:30 EDT

Project Overview: The goal is to create a helicopter seat booking system for routes between multiple destinations. The system should provide a user-friendly int...

HL-39839508

Pengembangan Fitur Baru Aplikasi - 01/10/2025 06:40 EDT

Aplikasi saya membutuhkan fitur baru agar semakin bermanfaat dan siap dipasarkan. Fokus utama pekerjaan ini adalah pengembangan fitur baru pada codebase yang su...

HL-39839368

Custom Live-Event Streaming Platform

I need a fully-functional platform that can stream our live events directly to our customers without relying on third-party services. Viewers should be able to...

HL-39839056

Custom Shopify Print Shop

Project Brief: Shopify Custom Print Shop (Kickflip Expert Required) Objective: Finish building a custom print shop on Shopify using Kickflip (preferred) that al...

HL-39838649

Smart Luggage Backend Development

I'm seeking an experienced backend developer to create a REST API for a smart luggage startup using Node.js. Key requirements: - Cloud integration, with the rea...

HL-39838417

Shopify Store Refresh and Search Functionality, Product update with CSV Integration, Product Navigation, and UI Enhancement

I am rebuilding part of my Shopify storefront and need expert help to tighten up both data handling and the browsing experience. Search & Navigation • One conso...

HL-39838445

Wallet Pass Transfer & Customization

I already run a Node.js service that takes an 8-digit barcode from a customer, generates an Apple Wallet / Google Wallet pass, and hosts it under my current App...

HL-39838134

SendBridge

About the Project BridgeSend is an AI‑powered international money transfer platform for diaspora communities — think “Wise meets Remitly with intelligence.” We’...

HL-39838147

E-Commerce Site with Custom Gateway

I’m ready to launch an online store that will sell a range of physical products, but instead of relying on Shopify or WooCommerce I want a fully custom-built so...

HL-39838045

Checkout.com Split-Payout Integration

I’m wiring a two-sided marketplace and now need a backend specialist to plug Checkout.com into our stack. The flow is straightforward: • Every transaction carri...

HL-39837891

Java & JS Bug Fixes

The current release of my application still hides a few stubborn defects on both sides of the stack, so I need your help tracking them down and patching them fo...

HL-39837763

small changes like remove captcha of the login page in a php website + notification bot on telegram to new registrations, accesses, etc. -- 2

I need a PHP developer to fix my website login system. It used to work fine but required a captcha. The captcha API balance has expired, so now login is blocked...

HL-39837806