API Development projects — HireLancer archive

ID / Date Listing

SaaS Integration Expert Needed

Integration Engineer Experience: 5+ Years Work Timing: IST Day Shift (with flexibility for client meetings and critical discussions) Role Overview We are seekin...

HL-40490930

Laravel + Vue Developer (Europe Timezone, Long-Term Contract)

I'm running a web project for a client and need a reliable developer to join me long-term. I'm currently handling everything myself and need an extra pair of ha...

HL-40490789

Custom Software & Web Development

I need your help turning a high-level concept into a working application. At this stage the functional scope is open—we will refine the feature list together—so...

HL-40490800

Urgent DevOps hiring

Looking for hire DevOps engineer. Docker, docker networking, security, mail cow. Hiring urgently

HL-40490697

AI-Driven Full-Stack Code Generation

I will hand you one consolidated brief requirement Document, that may include sample code snippets, UI mock-ups, sample API, Databased Scheme, and data models....

HL-40490513

Real Estate Custom CRM Development

The goal of this project is to design and develop a custom Customer Relationship Management (CRM) system tailored specifically for a real estate agency. The CRM...

HL-40490455

Resume & Recommendation AI Development

I want to streamline how resumes move through my hiring pipeline. The first component is an AI-driven agent—call it a chatbot, micro-service, or autonomous scri...

HL-40490247

360° Foot Traffic Counter MVP

I need a lean, working proof-of-concept that automatically counts foot traffic using a single 360-degree camera. The goal is to drop the unit into busy conferen...

HL-40490275

Full‑Scope Middleware & GoHighLevel API Developer (Remote)

We are Sarkis AI Inc., an automation agency at the intersection of precision healthcare and business technology. We need a highly skilled developer (or small te...

HL-40490299

Full-Stack Developer for Healthcare Tech in Chennai

Looking for a Full-Stack Developer Partner in Chennai We are expanding our healthcare technology initiatives and are looking for a passionate Full-Stack Develop...

HL-40490311

Build TikTok SaaS Product

I am looking for a highly experienced developer that knows the Tiktok Shop API inside and out. I can explain more in detail via messages what I am looking for,...

HL-40490152

Plataforma Web Oficial - C&D Content Web

Sitio web responsivo premium desarrollado con ingeniería de software, maquetación dinámica y optimización avanzada de carga para videos corporativos, logos y ma...

HL-40490098

Centralized Web-based Agency Management System -- 2

Distribution & Agency Management System Business Overview We operate a distribution agency business with: * 4 Agencies * 4 Sales Representatives * Approximately...

HL-40489927

Business Mobile App Development

I am ready to move forward with a mobile application that will serve a clear business purpose and must run smoothly on both iOS and Android. I have my core work...

HL-40489840

Scrape All RoadshowPBS Videos

I need a repeatable way to capture every single video that appears on the Antiques Roadshow PBS YouTube channel ( https://www.youtube.com/@RoadshowPBS ). The pu...

HL-40489802

Determine where high number of read, writes and request are coming from in my Firebase - Flutter App.

I have a dating match app with only about 1,500 users on ios and android. I have a very high amount of read/writes and requests and I need to determine where it...

HL-40489621

Add facility white label system to existing Next.js + Vercel + Postgres app — ? hours

I have a working Next.js web app deployed on Vercel with Vercel Postgres and Stripe. The app is a live AI wizard for senior citizens with a working admin portal...

HL-40489668

Minecraft NBT Entity Plugin Development

Aquí tienes una descripción técnica, atractiva y perfectamente estructurada para Freelancer.com. Está redactada en inglés (que es donde vas a encontrar a los me...

HL-40489497

REST API for Data Retrieval

I’m building a new system that will expose data-retrieval endpoints and need a developer who can architect, code, and document a clean REST API from scratch. Th...

HL-40489310

Expert App Developer with Koplin & CodeIgniter 3

Must have Skill as below; (check attached document file before QUOTATION) 1. Need App Developer who know Koplin & CodeIgniter 3 php framework very well. 2. Deve...

HL-40489211

Integrate Accounting Into Freight System

I built our freight-forwarding solution in .NET with an MS SQL back end, covering everything from enquiries and quotations through to job management, House BL p...

HL-40489227

Rebuild a multi-tenant SaaS gift-voucher platform — TypeScript / Next.js / Supabase — production-ready, QA included

We operate a SaaS gift-voucher platform used by hospitality businesses (hotels, restaurants, spas) . Merchants use it to sell, issue, redeem, track and reconcil...

HL-40489236

Experienced .NET Backend Developer Required

Experienced .NET Backend Developer Required for Food Delivery Marketplace Platform We are looking for an experienced .NET Backend Developer to join our growing...

HL-40489304

Full-Stack SaaS App Build

I am putting together a brand-new SaaS platform and need a developer who can take the project from blank repo to production-ready release. The core scope is cle...

HL-40489184

Migrate Google Script to V8

My current standalone Apps Script powers several custom functions inside a Google Sheets workbook, but it still runs on the legacy runtime. I need the code refa...

HL-40489072

Enhance Astrology App Features

astrology app 1.⁠ ⁠Wallet Structure Enhancement •⁠ ⁠Create two separate wallets: - AI Wallet: Used exclusively for AI-related questions. - Service Wallet: Used...

HL-40488880

Marketplace Product Scraper Needed

I need a script/app that can pull seller and product information from an online marketplaces. The scraper should be able to capture standard item details, handl...

HL-40488774

Full Website & Engagement Tools

I’m rebuilding our entire online presence and need a developer who can take the project from blank canvas to fully-functioning site. The site will include the u...

HL-40488655

Ongoing Mawahib AI Support

We are looking for a professional technical support company to provide ongoing maintenance and development support for Mawahib AI. The platform includes several...

HL-40488679

NSE Trend-Tracking Developer

I want to monitor the National Stock Exchange in real time and quickly spot emerging trends across sectors, indices and individual scripts. The task is to creat...

HL-40488716

Full Stack Business Website Build

I need a full-stack expert to take a business website from concept to deployment. The heart of the build is a secure login and account-management system with tw...

HL-40488553

E-Commerce & Admin Inventory Portal

I need an e-commerce website that comes with a robust back-office so I can run both sales and day-to-day operations from one place. The public-facing side shoul...

HL-40488603

Laravel API Integration with Odoo ERP

Need to create an API for my website made on Laravel PHP. So that i can to linked to an ERP Platform called Odoo for real time updation of stocks.

HL-40488365

ASP.NET Core REST & DB Integration

I need an experienced C# developer who can take a green-field backend and turn it into a production-ready ASP.NET Core Web API. The work centres on two main goa...

HL-40487379

App built to connect ElevenLabs Agents to Go High Level.

I need a streamlined web-based app that lets my clients step straight into an ongoing ElevenLabs live-chat inside Go High Level. Right now the system only hands...

HL-40487329

Asterisk FAS Tester UI

I need a developer who is equally comfortable scripting inside Asterisk and crafting a modern, clean web interface to turn my current False Answer Supervision (...

HL-40487291

Google OAuth 2.0 Integration for Base44 Platform

We need an experienced developer to implement secure Google OAuth 2.0 integration for our existing Base44 creator platform. The project involves building a comp...

HL-40487128

API Shift Booking Bot Development

I am building an API-driven shift-booking bot that other teams can plug into their own web or mobile front-ends. The service must expose clear REST (or GraphQL...

HL-40486899

One-on-One Calling Platform Development

I want to build a web-based, entertainment-oriented platform that lets users connect with female hosts for live 1-on-1 video and audio calls. The flow is simple...

HL-40486799

Integrate Flutterwave Web Payments

I need Flutterwave added to my website so users who prefer the web can purchase premium subscriptions or top-up coins for my app without relying solely on in-ap...