The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.
API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.
Here’s some projects that our expert API Developer made real:
It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?
From 112,280 reviews, clients rate our API Developers 4.9 out of 5 stars.API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.
API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.
Here’s some projects that our expert API Developer made real:
It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?
From 112,280 reviews, clients rate our API Developers 4.9 out of 5 stars.I want to build a professional-grade trading strategy that runs on the IQ Option platform from end to end—concept, code, testing, and live deployment. The exact logic is still open, so I’m ready to refine the entry, exit, and money-management rules together once a seasoned IQ Option developer is on board. What matters most is that the finished solution is stable, well-documented, and easy for me to maintain or tweak later. The work calls for someone who has already automated strategies on IQ Option, knows its API nuances, and can demonstrate live or historical results from previous builds. Experience with Python (or an equally reliable language for IQ Option integration), back-testing frameworks, and sound risk control techniques is essential. Deliverables • Complete, ...
Hi, I am currently operating an SMM panel website as a reseller. At present, I purchase services through another SMM provider’s API and resell them through my own panel. Now I want to move to the next level and establish myself as a main/upstream SMM provider. I do not want to depend on another SMM provider’s API for my core platform or services. I am looking for an experienced developer/team who can build a complete full-stack SMM service infrastructure from scratch, which I can fully own and control. My Requirements I need: Complete backend infrastructure Custom SMM Admin Panel My own Reseller API Service management system User/reseller management Order processing and automation Wallet and balance management Payment integration Order status tracking Refund, can...
1. Core Webvital Error: Both, Desktop and Mobile failed on core web-vital. 2. The article Page is too heavy. 3. First scroll has no content. Every page is starting from About Us, Privacy Policy, Terms & Conditions, etc. This should be in footer. 4. H1 is fine, but no H2s in most of the articles. 5. Instead of deep linking, I can see direct links pasted. 6. Social links in footer are not working. 7. Image size is not uniform 8. Slider in home page is too heavy 9. Vertical image in thumbnail, horizontal inside is breaking the rule. 10. Image size is too large. not downloadable in slow networks. Issues: CLS is the major issue Layout shift cis bad LCP request discovery Image dimensions missing Network dependency issues Other Major iss...
Backend API Developer / Engineer – Ad Network Integration & Custom API Development Project Overview: We are looking for an experienced Backend Web & API Developer to refactor, replace, and build custom APIs for our website and mobile applications. The primary goal is to upgrade our current backend setup and integrate a dedicated API engine to manage, serve, and track advertisements efficiently without sacrificing app speed or performance. Scope of Work & Key Requirements Legacy API Replacement: Review existing endpoints, remove outdated code, and build high-performance replacement APIs. Custom Ad API Infrastructure: Build APIs to fetch, serve, and deliver ad formats (banners, native, video, etc.) seamlessly to both web and mobile platforms. Ad Analytics & Tracking: C...
I need a full-stack team to scope, design, and build a ride-hailing solution that offers an experience on par with Bolt or Uber. The product must launch simultaneously on both iOS and Android and feel entirely native on each platform. Core feature set • Real-time GPS tracking for riders and drivers • In-app payments (major cards, Apple Pay / Google Pay, and wallet balance) • Rating & reviews system for both parties Advanced ride scheduling is desirable but not mandatory, so please show how it would affect price and timeline if included or left out. Please outline: • High-level architecture (mobile apps, backend, admin console) • Your preferred tech stack and any licensing costs • Milestone plan with estimated hours or story points • Pos...
I need a lightweight, drop-in software development kit that focuses first and foremost on high-quality filters and effects. The goal is to give any app the ability to load an image, choose from a curated set of real-time filters, and export the processed result without noticeable lag. Cropping, resizing, or brightness/contrast tools may be added later, so please architect the codebase to be modular and extensible. Performance matters: think GPU-accelerated rendering (Metal, OpenGL ES, WebGL, or an equivalent layer depending on your proposed tech stack) and shader-based pipelines that remain smooth even on mid-range devices. I’m flexible on whether you deliver native, cross-platform, or separate platform modules, as long as the integration experience is clean—ideally a couple o...
Creating an App called trenzy where customer can shop through traditional ecommerce or with shoppable reels. Reels are being pulled from social media such as tiktok, Instagram and facebook. I currently have the codes from 6am mart. Link is below The main Job is to: 1) Set up all apps and website on server. User app, vendor app, react website, deliveryman app 2) Enhancing reels shopping by adding multiple shoppable options 3) Developing a module where seller can automatically pull their reels from TikTok, Instagram and Facebook. Note reels are not stored in our server. Reels appear under tab ‘my reels” where seller can add reels upon a product creation 4) Pulling the number of followers from different social media platform and display it on corresponding seller profile 5) Use...
We need junior Developer for some easy work of LARAVEL We need work for long term From Pakistan or India we need new freealncer
I need a small desktop utility that connects to my Seller Central account through Amazon’s SP-API and handles one very specific order-processing step: shipment tracking. The application should poll for recently shipped orders, pull the carrier name and tracking ID I have already uploaded, and then push basic status updates (shipped, in transit, delivered, exception) back through the SP-API so the order timeline inside Seller Central stays in sync. Key points • Focus is shipment tracking only; no inventory work or deep sales analytics needed. • Basic status updates are enough—location–by–location detail is unnecessary. • The tool must run locally on Windows, storing credentials securely (refresh token, client ID/secret). • I would like cl...
We are a technology development team handling a wide range of digital and technology projects for clients across different industries. We work on projects based on the client's specific requirements, business goals, and technical needs. Projects can range from simple websites and custom applications to complex platforms, automation solutions, integrations, and other technology-based requirements. Our capabilities include, but are not limited to: Website & Web Application Development Mobile & Desktop Applications Custom Software Development SaaS & Business Platforms E-commerce Solutions WordPress & CMS Development CRM / ERP & Management Systems AI, Machine Learning & AI Automation Chatbots, AI Agents & API Integrations Business Process & Workflow Auto...
I need a developer who can wire my existing eBay seller account directly into a custom application through the eBay REST APIs. The first priority is reliable product listing automation: pushing new items live, revising existing listings, and ending items when stock runs out, all through code rather than the web interface. Beyond listing, I also want full order-management coverage. Your integration should: • Pull fresh order details on a schedule or via webhook • Update order statuses (paid, shipped, cancelled, etc.) back to eBay • Handle return requests programmatically so I can approve, refund, or decline without logging in manually You may build in the language or framework you prefer—Python, Node.js, or similar—so long as the solution follows eBay&rs...
I’m looking for an experienced PS4 developer to build a Windows PC tool that can load/inject GSC scripts into Black Ops II running on my PS4 TestKit. The game is already installed and running on my TestKit. I do not need help obtaining or installing the game. The required work is the GSC loader/injector tool itself. The tool should let me connect to my TestKit, select a GSC script from my PC, and load it into the running game, with clear success/error messages. You must verify compatibility with my exact game build and TestKit setup. Please explain whether your method requires HEN/jailbreak, specific debug access, or additional files. Do not assume these are available simply because I have a TestKit. Deliverables: a working Windows tool, complete source code, setup instructions, ...
我需要一套专注足球的线上体育博彩网站,从首页到后台完整落地。平台只做体育博彩,并且目前只覆盖足球这一项,所以所有功能、界面和数据流都要围绕赛事胜负、进球数以及球员表现这三种投注玩法来设计。 核心需求 • 前端:简洁、响应式的投注大厅,分别展示赛果盘、大小球盘和球员数据盘;实时赔率刷新;多语言预留。 • 交易引擎:支持三类盘口的快速下注、注单确认、自动结算与串关扩展。 • 数据接口:对接稳定的足球实时数据源,保证赛事、进球、红黄牌等事件秒级推送。 • 账户体系:注册、登录、KYC、钱包管理及主流第三方支付,对接 API 文档需同步交付。 • 后台:赛事与盘口管理、赔率调控、风控限额、报表与日志导出。 • 安全与合规:HTTPS、两步验证、基础风控、代码审计记录。 • 文档与交接:部署脚本、接口说明、运维手册。 验收标准 1. 实盘投注流程在测试环境全链路跑通,赔率与结算无错单。 2. 任意终端可正常访问,页面加载 <2 秒,赔率刷新 <1 秒。 3. 后台可实时调整三类盘口,改动立即反映到前端。 4. 代码、数据库结构与运维文档齐备,可一键部署到云服务器。 技术栈偏好 Node.js 或 PHP + MySQL,如有更成熟的方案可讨论。期待有博彩或金融级交易系统经验的你,用清晰的里程碑帮我把项目从原型带到上线。
I’m building a modern, AI-enabled website that feels lightweight yet professional. The look should follow a strictly minimalist aesthetic—clean typography, ample white space, and a restrained colour palette that adapts seamlessly from mobile to large-screen desktops. Core requirements • Secure user authentication with sign-up, login, password reset, and social OAuth options. • Fast, mobile-first responsive front-end built with a framework you’re comfortable with (React + , Vue, or similar). • An AI module (open to your preferred stack) that can be invoked from the dashboard; the exact model or API can be decided together once we review feasibility. • A simple dashboard with two priorities: User activity tracking and an Analytics overview prese...
I’m launching an online platform that sells professional services and I want as much of the day-to-day work to run itself as possible. The build has two major goals: a rock-solid, scalable backend and a smart, conversion-focused front-end. Front-end automation I need: • Product (service) recommendations that learn from user behaviour • An automated customer-support experience—ideally a chatbot or similar that taps into our knowledge base • Dynamic pricing so I can run real-time promotions or react to demand without manual edits Backend automation I consider essential: • Inventory management for service slots, seats or billable hours • Seamless order processing from checkout through fulfilment and invoicing • A light CRM layer that captu...
I’m building a new application and need a Laravel specialist to handle the entire backend. The core pillars are: • User authentication – secure registration, login, password reset, and role-based access. • Database management – design the schema from scratch, write migrations and seeders, and wire everything up to a fresh MySQL instance. • API creation – clean, well-documented REST endpoints that the front-end team can consume straight away. Laravel 10 is preferred so we can rely on the latest features and long-term support. Feel free to integrate Sanctum, Passport, or another token solution you’re comfortable with for authentication, as long as it stays native to the Laravel ecosystem. Deliverables 1. Fully functional Laravel project pus...
I’m building a dedicated social-networking experience exclusively for Android and need the entire mobile app created from the ground up. The project covers everything from first mock-ups through a polished, Play-Store-ready release. The core idea mirrors familiar platforms: users create profiles, connect with friends, post updates, and chat in real time—but the look, feel, and feature set should be fresh and lightweight. Expect standard social functions (sign-up/login, profile editing, timeline/feed, likes/comments, push notifications, basic direct messaging) plus any smart suggestions you may have to keep engagement high while maintaining performance on a wide range of Android devices. I’ll supply branding assets, a rough user-flow diagram, and a shortlist of must-have...
"Rydo" Ride-Hailing Platform We are looking for a developer to build a complete, functional ride-hailing platform for Nepal called Rydo. 1. Passenger App - Clean, modern, professional, mobile-first design - Passenger registration and login - Forgot password / password reset - Pickup location: manual entry + current location - Destination: manual entry + location selection - Real road distance and route calculation - Automatic fare calculation based on distance and vehicle type - Vehicle options: Bike, Car, Tuk Tuk - Cash and online payment option - Request ride - Cancel ride when cancellation is allowed - Real-time ride status - Driver information after acceptance - Call and message driver - Live driver tracking with ETA - Ride history - Ratings and reviews - SOS/emergency bu...
I need a hands-on engineer who already knows Retell AI inside out and can turn that knowledge into production-ready voice agents for my HVAC, electrical, roofing, trades, and medical-spa clients. You will own the entire cycle: architecture, build, testing, troubleshooting, and live deployment. Most projects require tight API and webhook work, plus CRM and calendar sync—often through n8n or —and many clients run on GoHighLevel or Vapi, so practical experience there is a strong plus. Because this is a client-facing role, you’ll join discovery and demo calls to answer technical questions, judge feasibility on the spot, and translate loose requests into concrete, maintainable solutions. Reliability under time pressure and clear communication are essential. Core deliverables...
I already have every screen designed and laid out; you can see the full product brief here: What I now need is the complete build of the app for both iOS and Android, plus a brand-new backend that supports everything in the document. The UI/UX is final, so the job is all about clean implementation, solid architecture and a smooth hand-off. Key points – Native-quality experience on both platforms – Full backend development from scratch (database, APIs, deployment, monitoring) – Source code and working builds delivered in staged milestones Please review the brief, propose the tech stack you feel is best, outline your timeline, and break down your pricing by milestone. Let me know if anything in the spec needs clarification; I’m ready to get started as ...
I’m ready to launch a multi-user marketplace and need a full-stack developer who can take the project from concept to deployment. The platform must support three distinct roles—Buyers, Sellers, and Admins—each with its own dashboard and permissions. Core requirements • Robust product listing with advanced search and filtering • Built-in user reviews and ratings displayed on both item and profile pages • Secure payment processing with escrow or split-payment capability • Responsive UI that feels fast on desktop and mobile • Clean, well-documented code (frontend, backend, and database) plus API endpoints for future mobile apps Tech is flexible as long as it’s modern, scalable, and something you’re confident you can maintain&m...
I’m assembling a long-term engineering partnership to bring a new web application to life. The core of the product is rich data visualization, so every decision you make—from the React component structure to the Node.js API design—must keep chart performance and interactivity front-of-mind. The stack is straightforward: React + TypeScript on the front end, Node.js on the server, all written in modern, clean JavaScript. I already have initial user stories, wireframes, and an outline of the data sources; your first milestones will involve fleshing out reusable UI components, wiring them to real endpoints, and ensuring the visualizations remain snappy across desktop and mobile browsers. I work in Eastern Time and welcome teammates throughout the US and LATAM for easy colla...
12+ years experienced PHP developer needed, with Next Js experience. You must be an independent freealancer you must be fluent in english you must be available to work immediately
Project Overview I am looking for an experienced Python developer to build an automated solution for researching companies in Switzerland. The solution will use an Excel file containing Swiss municipalities as input. Based on these municipalities, the system should identify companies, collect relevant business information, and subsequently analyze company websites to discover contact information and email addresses. The solution must be fully automated, scalable, and executable on Windows 11. Preferred Data Source The company search should preferably be conducted using the Google Places API. If alternative or additional data sources are proposed, they must be clearly described and justified in the proposal. Direct scraping of Google Maps is only acceptable if it complies with applic...
### Looking for a Technical Specialist – AI Lead Intent Platform We are looking for an experienced **AI/API developer or technical specialist** to take responsibility for building an **AI-powered Lead Intent Platform**. The goal is to identify people showing genuine buying intent across platforms such as **LinkedIn, Reddit, X, Facebook and other online communities**, using APIs, social listening and AI. Our **Meta Business account is verified** and **LinkedIn setup is established**. We need someone who understands these platforms and can take ownership of the technical implementation. Experience with platforms such as **PitchGhost, Distro, Buska, Devi AI, Syften or similar social-listening / buyer-intent systems** is a major plus. **We need someone who can handle:** * Social/AP...
Freelance Developer Required – ISP/Fibernet Field Service Management App We are looking for an experienced Full-Stack Developer / Development Team to build a complete ISP/Fibernet Field Service Management (FSM) & Customer Support System. The system will have Admin/Manager Web Panel + Customer Android App + Staff/Technician Android App, with scope for future OLT/ONU/NMS integration. 1. Admin & Manager Web Panel Admin login Manager/Office login Dashboard Staff management Customer management Complaint/Ticket management Installation/New Connection management Attendance Shift management Leave management Inventory Reports Incentive/performance management Settings User/role permissions 2. Staff/Technician Android App Staff login Staff profile Punch In / Punch Out GPS location cap...
I need an automated way to pull two very specific data points—product titles and prices—from a competitor’s mobile app that is available on both iOS and Android. The scraper must run once every 24 hours, store the fresh data in a structured format, and immediately compare it against our internal price list so we can see how we stack up at a glance. I’m comfortable with whichever technical route proves most reliable: calling the underlying APIs, instrumenting an emulator, or another proven approach that can navigate login screens, headers, or rate-limits without getting blocked. What matters is that the process is hands-free after deployment, resilient to UI or version changes, and produces clean, ready-to-query output. Deliverables • Well-commented source cod...
iOS + Android + Web App Developer/Team Needed We are looking for an experienced full-stack developer or development team to build a social/community platform for iOS, Android, and Web, inspired by platforms such as Meetup and Dil Mil. Core Features User registration, profiles & authentication Location-based user discovery Events, groups & communities Create/join events and RSVP User matching/discovery One-to-one & group messaging Likes, connections, followers/following Photos, videos & profile media Push notifications Search, filters & recommendations Privacy, blocking & reporting Admin dashboard for users, events, content & moderation Scalable backend and database Requirements Experience building social networking, community, event, or matchmaking platforms i...
I’m building SmartOps AI: an end-to-end autonomous agent that sits inside our support workflow, understands every incoming request, takes action on its own, and only taps a human when it is unsure. The core of the system will be a fine-tuned large-language model for reasoning and response generation, backed by a separate intent-classification model that produces a clear confidence score. Whenever that score falls below a threshold, the agent must automatically hand the case to one of our human agents. Integration focus Right now the agent only needs to plug into our customer-support stack, specifically Salesforce Service Cloud. Through the native APIs it must be able to update customer records in real time and, when required, raise an explicit escalation ticket for a human. In the...
React Native + Strapi Financing & E-Commerce Mobile App for Automotive Business Project Description We are looking for an experienced React Native mobile app developer/full-stack developer to build a customer-facing mobile application for an automotive business in Nigeria. We already have an existing WordPress/WooCommerce website where our vehicles are listed. The mobile app should connect to the existing website via API to display vehicles and, in the future, other products that may be available exclusively through the app. The first version will focus primarily on vehicle financing/installment payments. Main Features Customer Mobile App User registration and login Customer profile Browse vehicles/products Vehicle/product details Financing application Upload required documents ...
I need a developer who knows HubSpot inside-out to stand up a secure, private alumni portal. The immediate focus is a log-in flow that uses Single Sign-On so former students can authenticate once and move seamlessly through the site. Inside the portal I want an alumni directory that feels polished and easy to navigate. Users must be able to search or filter the database, open an individual profile page, and view listed contact details without exposing anything publicly. The portal will sit behind a secure, well-documented API; safeguarding personal data is non-negotiable, so please be comfortable with HubSpot’s security settings, GDPR best practice and any custom middleware needed. The same environment will house a small billing area. After log-in, alumni should be able to downlo...
I’m looking for a skilled developer to build a brand-new Android app from the ground up. The project focuses exclusively on the Android platform, so deep familiarity with Android Studio, Kotlin or Java, and the latest Google Play guidelines is essential. Here’s what I need: • End-to-end development of the app, including clean, maintainable code and intuitive UI that follows Material Design best practices. • Clear documentation and commented source files so I can maintain or extend the project later. • A release-ready APK plus a debug build for testing, along with any required assets and dependencies consolidated in the repository. • Basic guidance on submitting the app to Google Play (store listing, signing, versioning). I already have a general co...
I need a robust, web-based appointment scheduler built from the ground up. Core flow is simple for the end user, yet under the hood the platform has to work hard every single second to secure slots through an external booking API. What the application must do: • Web interface only, with a secure login. At launch I only need the Admin role; future roles can be added later, so the structure should remain extendable. • Full booking calendar visible to me in real time. • Automatic confirmation notifications and follow-up reminders triggered on successful booking events. • Continuous slot hunting: every second the system should poll the external API, rotating through a configurable proxy list, until an available time meets the rules I set. When it finds a match it must lock...
I'm looking for an experienced developer to build an OData V4 solution integrated with PostgreSQL, hosted within our AWS environment. The primary purpose of this solution will be data analysis and reporting, enabling customers to securely build their own reports via OData. Key Requirements: - Expertise in OData, especially V4 - Proven experience with PostgreSQL - Strong background in data analysis and reporting tools - Ability to deliver high-quality, scalable solutions - Familiarity with OAuth for secure access Ideal Skills & Experience: - Advanced knowledge of data modeling and database design - Familiarity with data visualization tools - Strong problem-solving skills - Excellent communication for project updates and collaboration Please provide relevant experience and approa...
I need a full-stack solution that lets both individual customers and corporate clients monitor vehicle pick-ups and drop-offs in real time while keeping every rupee of the operation balanced in one place. The system must be available on the web and as companion mobile apps so users, drivers, and back-office staff can work seamlessly from any device. Key modules I must see at launch: • Real-time GPS tracking – live map refresh, breadcrumb history, geofence alerts • Service charge calculation – automatic fare generation based on distance, time, or custom tariff tables • Detailed accounting reports – trip-level ledgers, monthly P&L, GST-ready invoices, export to Excel/PDF Beyond those essentials, the workflow should cover trip scheduling, driver as...
I’m building a web-based monitor that ingests Bloomberg FX volatility surface data for 52 currency pairs, scores each surface cross-sectionally, ranks today’s levels against the last two years of history, and then flags the best option structure to trade the signal. I already have a detailed functional document that I’ll share once we start; you will not need terminal access because the feed will arrive through a Bloomberg Server API/BPIPE connection that I control. The stack is set: Python with Django on the back-end. You’ll orchestrate the data pipeline, persist the snapshots, run the analytics layer (basic statistics, z-scores, percentiles, simple optimisation), and expose everything to the front-end in real-time. For live updates I’m open to WebSockets,...
Freelance Developer Wanted – Simple CRM for a Singapore Maid Agency I run Haven Hands, a maid agency in Singapore, and I’m looking for a freelancer to build a simple, easy-to-use CRM. We want to start with the essentials and add features later. Initial requirements: Store employer and helper details under a unique case/contract number. Enter details once and automatically populate our existing contracts and forms. Generate documents in PDF and editable Word formats. Record agency fees, discounts, insurance and placement loans. Automatically calculate and generate each helper’s salary and loan repayment schedule, using the basic salary, employment start date, payday, rest days, compensation for rest days worked and agreed loan deductions. Show the monthly amount pa...
We have developed an in-house online ERP system using Angular 20.3.19 for the front end, ASP.NET Web API 2 with .NET Framework 4.7.2 for the application/API layer, and SQL Server as the database platform. The ERP consists of multiple Angular modules, pages, forms, List of Values (LOVs), submission workflows, and backend services. We are looking to develop a centralized, dynamic error-handling and incident-management framework that can be integrated across the entire ERP application. Objective The objective is to create a reusable ERP Error Management Library that automatically captures and manages errors occurring at any application layer, including: • Angular/front-end errors • Form and validation errors • Button/submit-action errors • LOV and lookup errors • HTTP...
We need a freelance developer to build a WhatsApp-native appointment booking system for beauty salons and hairdressers. Customers book entirely by chatting to the salon's WhatsApp number — choosing a service, day and time, with the bot checking real-time availability and confirming only genuine open slots (no double-bookings). Salons manage everything — hours, staff, services, and bookings — from a simple web dashboard, and get notified instantly when a booking lands. The stack is WhatsApp Business Cloud API (direct with Meta, no reseller), n8n for the automation/backend logic, and PostgreSQL for the database, all self-hosted on free-tier cloud infrastructure — full technical spec is attached. The build must be multi-tenant from day one (so adding salon #2, #1...
My HVAC monitoring platform is running smoothly on a TypeScript code-base, but the equipment management section now needs two extra capabilities: asset tracking and usage logging. Your job is to weave these into the existing module without disturbing any of the current workflows. You will work directly with the repository I provide, extend the current models, services and UI where needed, link the new data to the existing database tables, and then run a full round of regression tests. I’ll walk you through the code structure and the exact data points I need captured (serial numbers, runtime hours, timestamps, etc.) so you can wire everything up cleanly. Because the system is already in production, backward compatibility and clean Git commits are critical. I expect: • Seamless...
Looking for a Full Stack AI Developer (Strong English + Technical Skills) I’m building AI-powered products (LLMs, RAG systems, AI agents, workflow automation, and full-stack AI solutions) with an experienced engineering team. Most of our developers are highly skilled technically, but we’re looking for one more senior developer who can confidently communicate in English with international clients. Your role would include: - Joining client meetings and understanding business requirements - Discussing technical solutions clearly - Acting as the main communication bridge between clients and our engineering team - Participating in architecture discussions and code reviews - Helping translate requirements accurately to the team You’ll be fully supported by an experienced AI...
Arcade is building high-performance, low-latency decentralized exchange (DEX) infrastructure designed for demanding financial workloads. We are looking for an elite, battle-tested Senior Backend / Systems Engineer who can take ownership of our core financial backend from 0-to-1 and help scale it to production. This is a founding-level engineering role with significant technical ownership. The Challenge We need an experienced backend systems engineer who can independently architect, build, deploy, optimize, and operate a high-throughput financial backend. The target is to build infrastructure capable of supporting $100M+ in daily trading volume within the first two months, while maintaining reliability, correctness, and extremely low latency in a live production environment. Key Responsibil...
Advert Freelance AI / Software Engineer required — UK Infrastructure SaaS There is a planning process that sits behind a large slice of UK national infrastructure delivery. It is done by hand. It has always been done by hand. An experienced engineer spends two to three days on a drawing, a spreadsheet and a street map, and produces a programme of work that hundreds of people then execute. Nobody has automated it. Not because the software is impossible — because the logic has never been written down. It lives in the heads of a small number of very experienced people. I am one of them. I have spent the last year writing it down. Where the project is now A substantial amount has already been built for the MVP. The platform exists and works. What I do not have is an independe...
We are looking for an experienced **Software Engineer** to join our project and help build, improve, and maintain modern software applications. The ideal candidate has strong experience with **JavaScript/TypeScript and Python**, understands backend and frontend development, and is comfortable working with APIs, databases, and third-party integrations. ### Responsibilities * Develop and maintain software applications using **JavaScript/TypeScript and Python** * Build and integrate REST APIs and third-party services * Develop backend services and application logic * Work with databases and optimize queries when needed * Debug, troubleshoot, and resolve technical issues * Write clean, maintainable, and well-structured code * Review existing code and improve performance and reliability * Co...
### 6amMart Developer Needed to Fix Bugs and Prepare the Platform for Launch We are looking for a developer with real experience in **6amMart** to work on an existing platform, fix the current problems and errors, and make sure all components are working properly before launch. The platform is built with **6amMart** and includes: * 6amMart Backend / Admin Panel * React User Website * User App * Vendor App * Delivery Man App * Car Rental Module * Firebase Notifications * Main payment gateway + an additional payment gateway that has already been integrated ### Current Known Problems: Several problems have appeared while using the platform, including: 1. Some modules and functions are not working properly on the **React User Website**. 2. When trying to add a new **Zone** from the Admin...
I need a Telegram bot built with enough flexibility that I can later decide exactly which job it performs—anything from sending scheduled reminders, welcome messages, or news updates to moderating group chats or handling simple customer‐support queries. What matters most at this stage is a clean, well-documented codebase (Python or Node.js preferred) that taps into the official Telegram Bot API and exposes an easy way for me to switch features on or off without editing core logic. An external config file, environment variables, or a lightweight admin panel are all acceptable; pick whichever keeps deployment straightforward on a standard VPS. Key deliverables: • Fully functional Telegram bot with modular command / message handlers • Simple configuration method to cho...
I need a small-footprint Azure application, that I can deploy inside my tenant, that lets users upload a PDF of our “date effective” records and automatically pulls out the From Date and To Date. Here is the flow I have in mind: 1. Upload interface (simple web page or BLOB-triggered function) accepts a single PDF at a time. 2. Azure AI Document Intelligence handles the parsing. If extra text cleanup or disambiguation is required, feel free to chain Azure OpenAI behind it. 3. Your code pinpoints the first instance of the two labels (“from date” / “to date”) and captures the values in ISO format. 4. The result, together with a unique identifier we generate for that file, is inserted into an Azure SQL Database table. I will provide sample PDFs ...
I have purchased the eFood Food Delivery System from CodeCanyon, which includes a Laravel backend/admin panel and Flutter customer and delivery-man apps. CodeCanyon project: I need an experienced Flutter + Laravel developer to install, configure, customize and launch the system for my catering business. The goal is to have the complete system up and running and ready for real customers and daily orders. Main tasks - Install and configure the complete eFood system on my hosting/server. - Configure the Laravel backend, database, admin panel and Flutter applications. - Configure the customer app and delivery/courier app. - Add and configure my catering business information, categories, products, prices, images and menu items. - Configure delivery areas, delivery charges, payment methods...
I run a car-rental page and I’m wasting too much time manually answering “How much?” on public posts. I’d like a small bot that monitors specific Facebook posts in other groups or ad comment threads and instantly drops a friendly reply that blends a set template with a few dynamic details you pull from the comment itself. How the response should look • It always mentions the daily rate (pulled from a simple price table I can edit). • It always ends with my WhatsApp number and page link. • Extra lines, such as pick-up city or requested dates, should be inserted only when you can detect them in the comment text, so each answer feels personal rather than copy-pasted. Scope of actions • ONLY public comment replies—no DMs, no bulk inbo...
i discus the details with the selecting freelancer.
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