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.
Backend Development is a critical part of any website or software product. It starts with understanding the client's goals and developing solutions that achieve those goals in a cost-effective and scalable way. Backend developers are responsible for more than just code: they have to have a strong understanding of databases, frameworks, and development in general. A backend developer uses this knowledge to turn complicated customer requirements into a efficient, automated solutions that the user experience (UX) team can work with.
When it comes to Backend Development, experience matters - you want someone who's seen a variety of projects and knows the best technology to use for your specific scenario.
Here's some projects that our expert Backend Developer made real:
Backend Development encompasses a wide variety of skills and technologies, so it helps to have an experienced developer on your team who can navigate the complexities of building high-quality solutions. Our expert developers have already undertaken a variety of different projects and can jump into yours with confidence - benefit from their expertise, get your project completed quickly and correctly, and reduce time-to-market for your product. Get in touch today to discuss bringing your project to life, or post your own project in Freelancer.com to hire an experienced Backend Developer.
Od 149,790 recenzí, klienti hodnotí našeho pracovníka Backend Developers 4.9 z 5 hvězd.Backend Development is a critical part of any website or software product. It starts with understanding the client's goals and developing solutions that achieve those goals in a cost-effective and scalable way. Backend developers are responsible for more than just code: they have to have a strong understanding of databases, frameworks, and development in general. A backend developer uses this knowledge to turn complicated customer requirements into a efficient, automated solutions that the user experience (UX) team can work with.
When it comes to Backend Development, experience matters - you want someone who's seen a variety of projects and knows the best technology to use for your specific scenario.
Here's some projects that our expert Backend Developer made real:
Backend Development encompasses a wide variety of skills and technologies, so it helps to have an experienced developer on your team who can navigate the complexities of building high-quality solutions. Our expert developers have already undertaken a variety of different projects and can jump into yours with confidence - benefit from their expertise, get your project completed quickly and correctly, and reduce time-to-market for your product. Get in touch today to discuss bringing your project to life, or post your own project in Freelancer.com to hire an experienced Backend Developer.
Od 149,790 recenzí, klienti hodnotí našeho pracovníka Backend Developers 4.9 z 5 hvězd.I am looking for an experienced developer or development team to build an MVP for a travel package comparison marketplace called TripMatch. TripMatch is NOT a travel agency. It is a platform where travelers can compare travel packages from multiple travel agencies in Saudi Arabia and GCC countries. Main Features: Traveler Side: - Search travel packages - Filter by destination - Filter by travel dates - Filter by budget - Compare packages side by side - Package details page - Favorites / Wishlist - Request booking form Travel Agency Dashboard: - Agency registration - Login - Add package - Edit package - Delete package - View booking requests (leads) - Profile management Admin Dashboard: - Approve agencies - Approve packages - Manage users - Manage destinations - View analytics - Manag...
I need a clean, browser-based system that lets my HR staff create professional employee ID cards in minutes. All templates (we will hand you at least 25 layered designs) should live in our Amazon S3 bucket; the app only has to pull what’s there, show a thumbnail gallery, and let the user pick the right one. Workflow I am picturing: • HR selects a template, uploads a JPEG headshot, and sees it auto-fit into the designated photo area. • Dynamic form fields then appear—name, department, certifications, cross-training info, etc.—matching that specific layout. • When a department requires it, the back side must include a Pdf417 barcode that encodes the data string we pass from the form. Quality is critical because we print in-house on PVC stock; the outp...
I am building a product that relies entirely on the Firebase stack and I need an experienced Firebase developer to wire up the core backend pieces for me. Authentication & Roles – Configure Firebase Authentication so new users pass a Captcha check before account creation. – Introduce role-based access control with at least one custom role: “Moderator”. The structure should allow me to add Admin or basic User roles later without rewriting rules. – Write Firestore Security Rules that enforce the role logic cleanly. Realtime Data I will be storing bookings, chat messages, and user availability in Cloud Firestore. Your job is to design the collections, indexes, and rules so that: • bookings update in real time for all parties involved •...
My booking form suddenly rejects every attempt to pick a date and flashes the message “Selected date is not valid.” Even when the date is clearly within the allowed range, the form refuses to proceed and blocks submission. I’m looking for someone to trace the root cause of this error message, correct the validation logic, and confirm the form submits smoothly once a valid date is chosen. You’ll work with the existing front-end (HTML/CSS/JavaScript) and back-end script that processes the reservation. No styling changes are needed—just the functional repair. Please test across the latest versions of Chrome, Firefox, Safari, and Edge so guests on any browser can complete a booking without errors. Deliverables: • Updated code (front and/or back end) that el...
Our site’s checkout flow has hit a snag: it’s a straight-up functionality bug in the Shopping Cart/Checkout area that prevents products from being added to the cart at all. Everything else renders fine, but the moment a user taps “Add to Cart” nothing appears in the cart icon, the mini-cart stays empty, and the session never registers the SKU. I need someone to dive into the existing codebase, track down the root cause, and push a clean fix without disturbing any other checkout logic. The stack is PHP 8.1 on the backend with a small sprinkle of vanilla JS and some jQuery on the front, so familiarity there will help you move quickly. Git access and a staging URL are ready for you the moment we kick off. Deliverable • A commit (or pull request) that restores n...
I’m planning a full-stack web application and want to anchor the backend in Spring Boot. On the data side I’m leaning toward MySQL, although I’m happy to hear arguments for PostgreSQL if you feel it’s a better fit for the features we’ll build. For the frontend you’re free to work in plain HTML/CSS/JavaScript or bring in React if that speeds development and keeps the code maintainable. Clean, responsive UI is important. User authentication is still under discussion, so please outline how you would implement it (or keep the project authentication-ready) without locking us into unnecessary complexity right away. To keep expectations clear, here’s what I need handed over: • Spring Boot project with well-structured REST endpoints • Respo...
At a glance • Engagement: fixed-price rebuild delivered by a dedicated team • Timeline: 8 calendar weeks, broken into milestone releases • Collaboration: daily Slack stand-ups, weekly demo calls, GitHub flow PRs Project overview The current Demand Forecasting Tool (DFT) is mission-critical yet unstable; frequent crashes under load have made it impossible to scale. I’m replacing it entirely and need a production-ready version that is fast, resilient and 100 % correct in its domain outputs. Fixed tech stack You will inherit a fully defined stack and infrastructure playbook (shared after NDA). The stack is non-negotiable, so your team must be comfortable dropping straight into an existing repo, containerised workflow and CI/CD pipeline. Required skills (pro...
I need an end-to-end ordering and last-mile delivery solution built from scratch. The scope covers three tightly-integrated products, each delivered with production-ready source code, clean UI and full documentation. • Native consumer apps (Android & iOS) – Product catalogue with offers and promotions – Cart, secure checkout and payments via credit/debit cards, mobile wallets, Apple Pay and Google Pay – Real-time order tracking and rich push notifications • Web-based admin panel – Catalogue, inventory and pricing control – Live order management, refunds and analytics dashboards – Campaign manager to send targeted push notifications for offers or promotions • Driver Android app – Update delivery stat...
We are building a sports and chatting app focused on online connecting users with workout partners (hiking, running, etc.). ** NON-NEGOTIABLE FIRST STEP (Please Read Before Applying) To ensure we are a match, we require a small, verifiable proof-of-concept before discussing budget or timeline. You will build a 100% offline Android demo app (no server/API needed) that implements: GPS location collection 2.Real-time route/trail drawing on a map Only candidates whose demo passes our background location stability test will receive the full detailed requirements. Demo must include source code, build instructions, and a short video demonstrating the background tracking working on locked-screen, background running and battery-saving modes of major Chinese Android devices (Huawei, Xiaomi, OPPO...
Project Overview ● Project Name: Aorbo Treks Portal & Mobile Application ● Client / Intellectual Property Owner: AORBO INFOCOM ● Registered Address: Flat 205, MS Arcade, New Market, Malakpet, Hyderabad, Telangana, India. ● Objective: Technical assistance for comprehensive flow testing, bug fixing, critical API integration, financial logic stabilization, and setting up an automated server hosting environment. Scope of Work A. Admin Portal Flow (Web) ● Overall Control Testing: Testing the master dashboard for total user management, system settings, and analytics. ● Approval Framework: Verifying the approval panel where admin reviews and approves/rejects trek listings submitted by vendors. ● Financial Oversight: Auditing the panel for settlement reports, platform fees tracking, and manual...
Saya berencana membangun sebuah situs web dan membutuhkan dukungan end-to-end, mulai dari perencanaan hingga peluncuran. Fokus utamanya adalah pengembangan situs web—bukan aplikasi seluler atau sekadar desain grafis—jadi keahlian Anda di bidang front-end dan back-end sangat penting. Kebutuhan inti: • Konsultasi tahap awal untuk memilih platform terbaik (WordPress, Shopify, atau custom HTML/CSS/JS—saya masih terbuka pada opsi mana pun yang paling efisien). • Pembuatan struktur halaman, navigasi, dan tata letak yang responsif. • Integrasi fitur standar seperti formulir kontak, optimasi SEO dasar, dan keamanan dasar (SSL, proteksi spam). • Panduan singkat pasca-launch agar saya bisa mengelola konten sendiri. Saya menghargai komunikasi jelas, dokum...
Project Overview ● Project Name: Aorbo Treks Portal & Mobile Application ● Client / Intellectual Property Owner: AORBO INFOCOM ● Registered Address: Flat 205, MS Arcade, New Market, Malakpet, Hyderabad, Telangana, India. ● Objective: Technical assistance for comprehensive flow testing, bug fixing, critical API integration, financial logic stabilization, and setting up an automated server hosting environment. Scope of Work A. Admin Portal Flow (Web) ● Overall Control Testing: Testing the master dashboard for total user management, system settings, and analytics. ● Approval Framework: Verifying the approval panel where admin reviews and approves/rejects trek listings submitted by vendors. ● Financial Oversight: Auditing the panel for settlement reports, platform fees tracking, and manual...
Project Overview We run a multi-site platform built with Node.js, React, and MongoDB (Customer site, Partner dashboard, Admin portal). We need a full-stack developer to fix a critical session bug and implement a few business guardrails. Immediate Fixes & Features: Fix Auto-Logout Bug: Customers log in fine, but attempting to book a service automatically terminates their session and kicks them out. We need this token/session persistence fixed. Flat £4.99 Travel Fee: Lock a strict flat £4.99 travel fee on the backend checkout. No customer or partner can alter this. Add an input box in the Admin Portal so only the admin can change this database value global fee. SMTP Password Recovery: Set up a live, real password reset flow using nodemailer linking to our server's ...
We need an experienced WordPress developer to recreate our existing company website. Reference Website: Please review the website carefully before submitting a proposal. This project is intended as a full website rebuild in WordPress with a modern, responsive, and easy-to-manage backend. Requirements: Pixel-perfect recreation of the existing website Fully responsive design (desktop, tablet, mobile) Fast loading speed and SEO-friendly structure Contact forms and lead generation functionality Easy content management through WordPress Cross-browser compatibility Clean, maintainable code To be considered, please review the website and provide the following in your proposal: Total number of pages you found List of pages identified Estimated development timeline Fixed-price quote Which p...
I need a brand-new e-commerce website built from the ground up. Your job covers everything: planning the architecture, designing a clean responsive interface, implementing the shopping cart and checkout flow, and setting up a user-friendly admin area so I can add or edit products on my own. I’m flexible on the underlying platform—what matters most is stability, speed, and room to scale The final site must load quickly on mobile and desktop, follow modern SEO best practices, and be easy for non-technical staff to operate after hand-over. Deliverables: • Fully functional live store on my domain • Customised theme matching my brand guidelines • Product, category, and order management dashboard • Secure checkout flow with major payment options enabled • ...
Necesito desarrollar una aplicación web optimizada para Android cuyo objetivo principal sea la gestión de tareas. Quiero que el usuario pueda crear, editar, marcar como completada o eliminar una tarea desde su teléfono sin instalar nada desde la Play Store; bastará con abrir el navegador o anclar la app a la pantalla de inicio. Busco, por tanto, una solución tipo PWA o similar que: • cargue rápidamente y se adapte bien a distintos tamaños de pantalla Android; • funcione con conexión limitada (caché básica u offline-first); • incluya autenticación de usuarios y sincronización en la nube para mantener la lista actualizada entre dispositivos. Me interesa un diseño limpio, intuitiv...
I'm looking for an experienced developer to upgrade my existing website. The primary goal is to add new features, specifically AI-driven content recommendations. Key Requirements: - Integrate AI-driven content recommendation system - Enhance navigation and layout for better user experience - Improve site architecture to support new features Ideal Skills and Experience: - Proficiency in AI and machine learning - Strong background in web development and UX/UI design - Experience with site architecture and feature integration Looking for a freelancer who can bring a modern touch to my website while ensuring it remains user-friendly.
Hi everyone, Let’s skip the fluff. I am not looking for a frontend or UI developer. I am running a digital products store, and I need a strong backend automation scripter (preferably Python) to build the data flow pipeline between my existing infrastructure. We process around 50 orders a day and are scaling up, so I need an automated engine that can handle this volume without bottlenecking. The Infrastructure (What we already have): Account Creation Tool: A dedicated internal system that generates raw web accounts. Unique-API Generator: A customized fork of sub2api running on our VPS. This handles the conversion of web accounts into usable API keys. We already have the core functionalities built into this fork. The Storefront: The platform that processes incoming customer order...
I need a simple interactive TikTok LIVE game connected to TikTok gifts. Game concept: * Football penalty shootout game. * Every gift triggers a penalty kick animation. * Goalkeeper can save or miss the shot. * Live scoreboard updates in real time. * Show supporter name when taking a shot. * Top Gifters leaderboard. * Sound effects for goals and saves. * Easy admin panel to edit teams, gifts and scoring rules. * Integration with TikFinity or another reliable TikTok LIVE solution. * OBS or browser overlay support. Please provide price, delivery time and examples of similar projects.
**Job Title: Senior Backend Engineer + Base44 or Marketplace Architect + Base44 Expert** **Job Description:** Join our team as a Senior Backend Engineer to enhance our marketplace platform. You'll work on integrating new features, optimizing performance, and ensuring scalability. Collaborate with our team to design and implement backend solutions that meet user needs. This role requires strong problem-solving skills and the ability to work independently. About the Project We are building EG marketplace. Our goal is to build a scalable, secure, and production-ready platform with a strong focus on merchant onboarding, payments, and long-term architecture. We are looking for a highly experienced engineer who can take ownership of the backend architecture and critical integrations w...
Looking for Technical Co-Founder (SaaS for SAP Users) About me I’m building a SaaS product targeting SAP customers — specifically those using SAP Cloud ALM — and I’m looking for a technical co-founder to build it with me. I will handle: • Business development • Sales and go-to-market • Customer acquisition You will own: • Product development • Technical architecture • Building the platform ________________________________________ The Problem SAP customers struggle with dashboards. Today, they either: • Use SAP Analytics Cloud → complex and slow to set up • Build custom solutions → expensive and hard to maintain The result: Most companies don’t get real value from their data. ______________________________...
I’m building a small, fast-moving team and I need developers who can do far more than commit clean code. You should be as comfortable articulating why a solution works as you are implementing it, because we rely on open, precise dialogue to ship great web products on schedule. Your role could lean frontend, backend, or full stack depending on your strengths, but in every case you’ll: • join video stand-ups where clear, confident American-English communication keeps everyone aligned • break down technical ideas for non-engineers so product decisions stay data-driven • pair with design and QA to push features from concept to production without silos If you can demonstrate solid web-development experience and the ability to explain your thinking just as ...
Concept La plateforme permet aux utilisateurs de participer à des tirages quotidiens grâce à l'achat d'entrées individuelles ou via un abonnement mensuel. Les utilisateurs disposent d'un compte personnel leur permettant de suivre leurs participations, leurs résultats et leurs transactions. Un système automatisé exécute les tirages à intervalles réguliers et attribue les récompenses selon les paramètres définis par l'administrateur. Objectif Créer une plateforme moderne, simple à utiliser, capable de gérer un grand nombre d'utilisateurs simultanément tout en offrant une expérience fluide sur mobile et ordinateur. Modules principaux Front...
I’m looking to build a full-featured EdTech solution that learners and instructors can access through any modern browser, whether they’re on Windows, macOS, or Linux. The core objective is to deliver an intuitive, web-based experience that streamlines course delivery, tracks learner progress, and manages all educational data in one place. Here’s what I have in mind. The platform should let instructors upload lessons, quizzes, and multimedia resources, then automatically record engagement and performance metrics in a secure database. Students will log in to view their courses, complete assignments, and monitor their own progress through dynamic dashboards. Role-based permissions, real-time analytics, and a responsive UI are non-negotiable so the site feels lightweight on ...
I am starting a brand-new social networking mobile app and need an experienced iOS developer to take it from concept to App Store submission. The core platform will be iOS only, so deep familiarity with Swift / SwiftUI (or UIKit where appropriate), Apple Human Interface Guidelines, and the latest iOS SDKs is essential. The vision is a clean, modern community space where users can sign up quickly, create rich profiles, follow or friend one another, share posts that appear in a real-time feed, exchange direct messages, and receive push notifications that keep conversations moving. I already have initial wireframes and a feature wishlist; together we will refine them into a solid backlog, define the technical architecture, and set realistic milestones. Key deliverables: • Xcode p...
Something in my checkout flow is breaking and I need a fresh set of eyes to track it down and eliminate it. The issue shows up during the actual checkout process—before payment completes—so customers never make it past that point. I’m not yet sure whether the culprit is a front-end script, a back-end validation rule, or a misfire between them; I simply know revenue is being blocked. You’ll dive into the live codebase, reproduce the failure, trace the root cause, and implement a clean, well-documented fix without disrupting any other part of the site. I can give you full access to a staging copy as well as error logs, version control, and any third-party payment gateway dashboards you need. Deliverables: • Pinpointed root cause with a brief explanation &bull...
# Project Name AI Job Application Assistant # Project Vision Build an AI-powered job search and application platform that helps job seekers automate the most time-consuming parts of the job application process. The platform should allow users to upload their resume, define their career preferences, and let AI search for relevant jobs, tailor resumes, generate cover letters, track applications, and manage the entire job search journey through a single dashboard. The goal is to save users hours of manual work every week while improving application quality and consistency. --- # Target Users * Freshers * College students * Recent graduates * Experienced professionals * International students * Job seekers actively applying for jobs --- # Core Problem Most job seekers spend hours ev...
Compress JPEG to 50kb & Resize Images Online - Free Tool In the digital age, managing files efficiently is crucial. Whether you need to compress JPEG to 50kb for a government application, resize passport photos under 20kb, or perform a quick JPG PNG converter task, privacy and speed are paramount. ConvertImage provides a premium, 100% offline-capable suite of tools. Top Features Compress JPEG to 50kb: Exact targeting for uploads. Online PDF Tools: Merge, Split, and Lock PDFs. Privacy Guarantee: Zero server uploads. Client-side processing. Perfect for Government Exams & Online Applications All-in-One Solution: Designed specifically for students and job aspirants to handle all document upload requirements in one place. Exact Size Compression: Easily compress JPEG to 50kb for SSC CGL...
Busco desarrollar una plataforma web que permita a los usuarios publicar y buscar trabajos freelance, de forma similar a Freelancer. Alcance principal • Módulo de publicación y búsqueda de proyectos freelance con filtros básicos. • Sistema de mensajería interno para que clientes y profesionales conversen sin salir del sitio. • Sistema de calificación y reseñas tras la finalización del trabajo, visible en los perfiles. • Integración de métodos de pago seguros (escrow o pasarela equivalente) para proteger a ambas partes. Requisitos técnicos y de entrega 1. Propuesta de arquitectura (frontend, backend, base de datos) y stack sugerido. 2. MVP funcional que cubra los puntos anterio...
Saya ingin mengembangkan sebuah game petualangan bergaya multiplayer untuk platform mobile (Android / iOS). Konsep dasarnya adalah pemain bisa menjelajah dunia imaginatif, menyelesaikan misi bersama teman, dan saling berkompetisi lewat fitur co-op serta PvP ringan. Yang saya butuhkan: • Dokumen konsep inti meliputi alur cerita, mekanik utama, dan progres karakter. • Prototype fungsional yang sudah dapat dijalankan di perangkat mobile untuk menunjukkan eksplorasi, pergerakan karakter, serta sesi multiplayer dasar (lobby, host, join). • Rancangan antarmuka pengguna yang intuitif—cukup sketsa layar utama, menu inventori, dan tampilan misi. • Implementasi backend ringan menggunakan layanan real-time multiplayer populer (contoh: Photon, Firebase, atau solusi ser...
We are building a sports and chatting app focused on online connecting users with workout partners (hiking, running, etc.). ** NON-NEGOTIABLE FIRST STEP (Please Read Before Applying) To ensure we are a match, we require a small, verifiable proof-of-concept before discussing budget or timeline. You will build a 100% offline Android demo app (no server/API needed) that implements: GPS location collection 2.Real-time route/trail drawing on a map Only candidates whose demo passes our background location stability test will receive the full detailed requirements. Demo must include source code, build instructions, and a short video demonstrating the background tracking working on locked-screen, background running and battery-saving modes of major Chinese Android devices (Huawei, Xiaomi, OPPO...
I need an experienced Optimizely backend developer to help add new features to our platform. The key areas for enhancement are: User Authentication: Implement robust user authentication mechanisms to secure our platform. Content Management: Develop advanced content management features to streamline content creation and organization. Social Media Integration: Integrate with various social media platforms to enhance connectivity and content sharing. Ideal Skills and Experience: Proficient in Optimizely backend development. Strong experience in user authentication and content management systems. Familiarity with social media APIs and integration. Excellent problem-solving skills and attention to detail. If you have a track record of successfully adding features to similar platforms, I...
I need a secure, intuitive web portal built specifically for individual investors. pages login Dashboard My Investments New Properties Wallet Withdraw Funds Withdrawal History Returns Transactions Documents KYC Verification Profile Settings Support Logout
Je cherche un développeur spécialisé en backend, à l’aise avec Pine Script, pour créer un script TradingView visant l’automatisation complète de mes opérations de trading. Contexte Je dispose déjà de règles précises d’entrée et de sortie de position. J’ai besoin qu’elles soient intégrées dans Pine Script afin que TradingView déclenche automatiquement les ordres via webhooks. Ce que j’attends • Un code Pine Script clair, commenté et structuré. • Implémentation de mes conditions de trading : signaux d’achat/vente, gestion du risque, take-profit et stop-loss. • Paramètres ajustables (multip&eacut...
Context Dastra is a SaaS platform helping organizations manage privacy, compliance, and governance workflows. Some customers need custom integrations between Dastra and their internal tools or third-party systems, using the Dastra API. We are looking for a freelance developer to help design, build, test, and document customer-specific integrations. Mission Objectives The freelancer will build reliable custom integrations that connect Dastra with customer systems such as CRMs, HR tools, ticketing platforms, document repositories, identity providers, data warehouses, or internal business applications. The goal is to automate data flows, reduce manual work, and ensure that customer-specific compliance processes can be operated directly from or alongside Dastra. Scope of Work The missio...
I have a short-form mobile video script already running in English. I’d like you to set it up so that everything—menus, captions, and any on-screen text—can be switched to Turkish directly from the admin page. Here’s what I need: • Configure the existing script on my server (PHP/Laravel) so it installs cleanly and pulls all language strings from a single translation file or database table. • Add a simple toggle or drop-down in the admin dashboard that lets me translate or edit each string, then save the Turkish version without touching code. • Make sure subtitles generated for uploaded clips can also default to Turkish when selected. • Test the front end on iOS and Android browsers to confirm the Turkish text displays correctly and right ...
I need a complete cross-platform card game app that runs smoothly on both iOS and Android and lets players face off in real-time multiplayer matches. You will take the idea from blank screen to store-ready builds, handling everything from the game loop and UI to the networking that keeps every device in sync. I’m open on the specific engine or framework—Unity, Flutter, React Native, or another tool you prefer—as long as the end result feels native, loads fast, and can scale to many concurrent users. Alongside the mobile clients, I’ll need the lightweight back-end services required for real-time gameplay, player authentication, basic matchmaking, and an admin panel where I can tweak game parameters and monitor active sessions. Deliverables: • Fully functional ...
We are looking for an experienced AI agent developer to help our California-based law firm build Claude-powered AI agents for internal legal workflows. Key responsibilities: Build AI agents using Claude / Anthropic API or similar large language model tools. Help automate legal document review, summarization, and information extraction. Create workflows for contract analysis, case document organization, and internal research assistance. Design a secure system that can work with sensitive legal documents. Build a simple user interface or integrate the agent into our existing tools. Set up retrieval-augmented generation, document search, prompt workflows, and agent memory where appropriate. Provide documentation so our small software team can maintain and improve the system later. Required...
⚠️ IMPORTANT: Only apply if you have built a real project using React, Supabase AND Mollie together. Not separately. If you have not used all three in the same project, please do not apply. --- **About us:** We run a subscription-based e-commerce business with a React frontend, Supabase backend, and Mollie as our payment provider. --- **Immediate task:** Audit our Supabase backend and subscription system — verify that all subscriptions are correctly saved, charged, and secure. Identify any issues and provide a clear written report. **Upcoming project:** Website rebranding within the next few weeks. We need someone who can build a professional, high-quality e-commerce frontend in React. --- **Requirements — all are mandatory:** ✅ Real hands-on experience with React, Supab...
Seeking an experienced AI/Robotics Software Engineer to develop a Language-to-Task Flow Graph Generator for industrial robot operations. The platform will transform natural language instructions into validated JSON task schemas, NetworkX-based DAGs, and downloadable visualization artifacts. Expertise in FastAPI, Python 3.12+, Pydantic v2, NetworkX, PostgreSQL, Docker, and Clean Architecture is required. Experience with industrial automation workflows, task planning, validation engines, and scalable backend systems is highly preferred. Domain-Specific Robots Relevant to This Project 1. Warehouse & Logistics Robots – Autonomous mobile robots for picking, sorting, and conveyor operations. 2. Manufacturing Assembly Robots – Industrial robotic arms performing assembly, transf...
I need a responsive, browser-based application that allows anyone to report incidents of abuse quickly and safely. The entire flow must run on the web (no native iOS or Android code), so front-end and back-end should both be optimized for modern desktop and mobile browsers. Core functionality I must see at launch: • Anonymous reporting – no personal data is stored unless the reporter chooses to add it. • Evidence upload – users can attach photos or short video clips (formats: jpg, png, mp4, mov). • GPS location tagging – the user’s current coordinates are captured and saved with the report after explicit consent. For each submitted case, the system should generate a unique reference number, store the data in an encrypted database, and send a con...
I’m acquiring private, production-tested GitLab repositories from the Fintech space to enrich our AI/LLM training corpus at Infobay AI. I will only consider codebases that have never been public, were actively used in a real-world environment, and show evidence of at least two contributors. A reliable test suite and a clean, repeatable build are mandatory. If your repository meets those standards, please outline: • The tech stack and framework versions • Proof it has never been public (e.g., creation logs, access history) • Confirmation of two-plus contributors • Instructions for running the test suite and reproducing a production build • Any existing documentation that shipped with the system Once I verify everything, we’ll arrange secure, ti...
I'm looking for an experienced HR assistant or career specialist to handle daily searches and responses to Backend/Fullstack developer openings. Task: Massive daily responses to job openings, with resumes carefully tailored to each position. The goal - 100% receive 2-3 screening calls per day. What the job involves: daily monitoring of current openings on the specified platforms, selecting relevant positions based on specified criteria, tailoring resumes and cover letters to each specific opening, taking into account keywords and requirements, submitting responses on my behalf, maintaining a spreadsheet of submitted responses (date, company, link, status), and daily reporting. Candidate requirements: real experience in recruiting, career consulting, or job search assistance; understan...
I need a complete inventory module built with Node.js on the back-end, Angular on the front-end, and MySQL as the data store. The overall project is a business management system, but for this phase I’m focusing solely on inventory management. Here is what has to work from day one: • Stock tracking – real-time quantity updates, low-stock alerts, and simple adjustment logs. • Barcode scanning – generate and read codes directly in the browser; a basic handheld scanner should work out of the box. • Order management – create purchase orders, receive items into stock, and tie outgoing orders to stock deductions. Clean, modular code is important because I’ll be adding CRM and accounting components later. API endpoints should be RESTful, the Angu...
I want to launch a web-based marketplace that works much like Freelancer, but it will cater exclusively to two user groups: influencers and brands. The flow is straightforward—brands post campaigns or one-off collaborations, influencers browse and bid, and both parties communicate through a built-in messaging system until a deal is struck. Core features I need developed: • User profiles for both influencers and brands, each with tailored fields (audience size, niches, past collaborations for influencers; campaign details and budget ranges for brands). • A posting area where brands create projects and influencers can submit proposals or quotes. • A real-time messaging system tied to each project so negotiations stay organized. The build is web-only for now, so ple...
I need an online marketplace similar to Loadshift, specifically for transportation services. The platform should enable users to book services, leave ratings and reviews, and allow carriers to quote on jobs. Key features include: - User registration and profiles - Service listing for transportation jobs - Booking system - Rating and review system - Carrier job quoting feature Ideal skills and experience: - Experience in developing service-based marketplaces - Strong backend and frontend development skills - Familiarity with booking and review systems - UI/UX design experience for user-friendly navigation
I'm looking for an experienced Kbmax and Epicor CPQ expert to help build 53 models based on 3 samples provided by the Epicor team. The work involves parameter adjustments and custom UI design, aligning with our specific requirements. While I don't have detailed documentation, I can provide examples for guidance. Additionally, these models will require full integration with our cloud kinetic environment. Ideal candidates should have experience with Kbmax, Epicor CPQ, and system integration.
I will supply three separate React codebases from GitHub, each mapped to its own domain already registered inside my Hostinger account. What I need is a clean end-to-end deployment on Hostinger’s infrastructure so all three sites load live under their respective domains. Please keep every existing environment value, build flag, and configuration that you find in the repos—those settings are already proven in staging and must remain intact. Each project also connects to at least one database; I’ll provide the credentials once the hosting is ready. I’m not yet certain whether the back-end is MySQL, PostgreSQL, or another engine, so I’ll rely on your guidance when we verify the connection during setup. Deliverables • All three React apps compiled, hosted...
I need a standalone chat module that plugs into my existing Worker Online platform so employers and workers can talk instantly without ever leaving the site. The core requirement is true real-time messaging—no page refreshes, no polling delays—so WebSocket technology such as , Pusher, Firebase Realtime DB, or a similarly reliable solution is essential. Key capabilities I must see in the finished module • One-to-one conversations that appear instantly on both sides • Secure file sharing inside the chat window (PDF, DOC, image and video attachments up to a configurable size limit) • Typing indicators, online/offline status and message timestamps • Scalable architecture that keeps messages synced across web and mobile views • Clean, responsive U...
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.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.