API Development projects — HireLancer archive

ID / Date Listing

HOA Member Portal Development

I need a straightforward, password-protected website where our small homeowners’ association can post eight governing documents and roughly fifteen answers to f...

HL-40259427

Online Will Creation Platform-Web base will writing software for Uk example freewills.co.uk

I need a web-based application that allows people to draft legally sound wills through a library of smart templates.The system should guide a user step-by-step,...

HL-40259097

Mac88 API for Diamond Exchange

I’m finalising a diamond-exchange platform and now need the Mac88 API wired in so the core trading features go live. The work centres on three concrete capabili...

HL-40259357

Add Basic Search to Electron

MUST WORK ON MY PC VIA ANYDESK USING VS CODE BETWEEN 18:30 - 20:30 GMT DAILY BUDGET IS LIMITED TO $100 MAXIMUM I have a working Electron desktop application and...

HL-40259213

MVP Trucking App Development - 25/02/2026 15:47 EST

I need a working MVP that covers the full trucking workflow on three fronts: a customer-facing mobile app, a driver-facing mobile app, and a lightweight web das...

HL-40259242

Supabase SendGrid Notification Emails

I already have a SmtpTurbo project running and I’d like notification emails to stop going into spam folder. Here’s what I still need: • review the existing Supa...

HL-40258946

MVP Trucking App Development

I need a working MVP that covers the full trucking workflow on three fronts: a customer-facing mobile app, a driver-facing mobile app, and a lightweight web das...

HL-40258984

Automated Contact Info Scraper

We are building an automated system to collect contact information (name, email, phone number) for art teachers from U.S. K-12 school and district websites at s...

HL-40259016

Gmail Extension API for Sending Bulk Email Campaign

I need a Chrome extension that plugs directly into Gmail and lets me queue and send large volumes of marketing emails without tripping Gmail limits. The workflo...

HL-40259084

Fix Node.js API Response Bug

My Node.js script is sending requests to an external REST API, but the data that comes back is wrong—fields are missing or values arrive in unexpected formats e...

HL-40258932

Convert NinjaScript Indicator to Quantower

I have an existing NinjaTrader indicator—roughly 1,500 lines of NinjaScript—that I now need running inside Quantower. The goal is a straight, 1-to-1 port: no ne...

HL-40258841

New Junior Level / Python( Flask/Django) Coder needed

New Junior Level coder of python good skills in Flask or Django I need from Pakistan or India

HL-40258855

CRM con IA y Anuncios Meta

Necesito desarrollar un CRM que combine tres frentes clave en una sola plataforma intuitiva: 1. Gestión completa de clientes y sus historiales. 2. Integración d...

HL-40258695

Healthcare Startup Full-Stack Co-Founder

I’m turning a proven pain-point in hospital administration into a product that makes appointments, patient data, and billing flow in one place. My background is...

HL-40258720

On-Demand Laundry App & Dashboard

I am building a full on-demand laundry solution and require both customer-facing mobile applications (iOS and Android, released simultaneously) plus a secure ad...

HL-40258510

Mobil Uygulama ve API Geliştirme

iOS, Android ve Web’de eş zamanlı çalışacak bir uygulama inşa ettirmek istiyorum. Temel modüller şunlar olacak: • Kullanıcı kaydı ve oturumu • Gerçek zamanlı bi...

HL-40258559

Firebase Chat Issue Resolution

Fix issue with my firebase chat to stop loading each time. It should remain steady and not load each time.

HL-40258383

South African Web App Developer Needed (Next.js + Supabase)

SEEKING SOUTH AFRICAN SUPPORT ONLY Hi there! I have a young startup in the US and am seeking a mid-to-junior web app developer to help us build modern, scalable...

HL-40258465

Misfits Mentorship App for Diverse Learners -- 2

Complete TEFL Certification Course For Me.

HL-40258187

Cross-Platform Grocery Savings Locator

I need a mobile app built for both iOS and Android that lets me type in—or later scan—a grocery list, then automatically compares live or frequently-updated pri...

HL-40258106

TikTok Business API Initialization Specialist

Job Title: TikTok Business API Setup Expert (Proven Approval Experience Required) Job Description: We are looking for an experienced TikTok Business API special...

HL-40258122

Cross-Platform Order Delivery System

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-40257922

Fix Binance Futures API Integration - 25/02/2026 04:50 EST

The core of my FastAPI backend is already in place, yet the moment I swap from testnet to mainnet the Binance Futures connection collapses. Using python-binance...

HL-40257911

RESTful Web Backend API Development

I need a clean, well-structured RESTful API to power the backend of my web application. The API should follow standard HTTP methods, return JSON, and be easy to...

HL-40257953

DostNow (Social Booking Platform Development)

DostNow is a verified social booking platform where individuals or groups can create profiles and make themselves available to be booked for social meetups or e...

HL-40257972

Build Comprehensive Backend Services

QicSEND SL is a cross-border remittance platform enabling fast, low-cost money transfers from Canada to Sri Lanka. Recipients in Sri Lanka initiate payment requ...

HL-40257780

Horoscope Website & App Development

I want a responsive horoscope website paired with companion apps that run smoothly on both iOS and Android. The core deliverable is a single code-base and share...

HL-40257806

Senior C# Engineer - Generative AI Solutions

Senior C# Engineer - Generative AI Solutions Responsibilities Own the design and implementation of C# services powering our generative AI products - from proto...

HL-40257723

Vert.x Microservices with PostgreSQL

I am building a microservice-oriented backend on the Java Vert.x framework and need an experienced developer who can take full ownership of a single service fro...

HL-40257500

Build Ground-Up Social Platform OS

My project, Bakuger, starts deeper than an ordinary app: before users can post a single video or chat in real-time, we need the operating system itself. I’m put...

HL-40257510

Full-time Next.js + API Implementer, AI System

Next.js + API Implementer—AI Platform Build-Out (Full-Time Remote Contract, Long-Term) ** TO APPLY: You must include your GitHub profile (with commits older tha...

HL-40257526

Full Scrape & Backend Build

I need a complete solution that pulls all publicly available data from instamatch365.com and funnels it into a brand-new backend you will set up from scratch. T...

HL-40257537

Android and iOS SDK Development

Profile 1 - Android SDK Developer Experience: 1–2 years Engagement: Projectwise Key Responsibilities 1. Design and develop a native Android SDK using Kotlin 2....

HL-40257580

AI Underwriting MVP Web Application

I am ready to turn my proof-of-concept into a very lean web-based MVP that showcases how AI can streamline credit underwriting from raw bank statements all the...

HL-40257372

Enterprise Automation Platform – Multi-DMS Handwritten Note System

We are building an enterprise-grade, multi-tenant automation platform that integrates dealership management systems (DMS) with an in-house handwriting print sys...

HL-40257416

Web Tools Platform Development

I want to launch a site patterned after https://tools.dotiam.com, but we will roll it out in stages. The full catalogue is eventually 150+ small SEO and utility...

HL-40257447

Python Backend Development with Firebase

I need a new backend created for my project using Python (Django/Flask) and Firebase as the database. Ideal skills and experience: - Proficiency in Python, Djan...

HL-40257434

Flask API Backend Development

I'm seeking an experienced Python developer to build a robust backend for my project using Flask. Key Requirements: - API Development: Create secure and efficie...

HL-40257457

Comprehensive Fintech App QA and Security Audit

Full Fintech Web App Testing, Security Audit & Mobile Readiness (React + Supabase) Project Overview We are looking for an experienced full-stack / QA-focused de...

HL-40257149

All-in-One Travel Route Optimizer

Finding the best way to travel between two places is often confusing because buses, trains, and flights all work separately with different schedules and ticket...