API開発 Jobs

New Freelancer with experience needed. Pakistan, India and Bangladesh freealncer. I run a Laravel API with a React JS frontend and it’s starting to show its age. I want an experienced developer to go through both layers and leave me with a lean, well-structured codebase that is easier to maintain and noticeably faster for end-users. On the React side the focus is pure code cleanup and refactoring: removing dead or duplicated code, splitting oversized components, introducing reusable hooks where they make sense, tightening up state management, and making sure the build stays light. ESLint, Prettier and whatever other tooling you normally use are welcome as long as the result is a tidy, readable repository. The Laravel backend also needs a careful once-over. I’m mainly after cl...

I’m looking for an experienced developer to set up the official WhatsApp Business Cloud API and develop a web-based WhatsApp API management dashboard. The project should include: **1. WhatsApp Cloud API Setup** * Meta Business verification * WhatsApp Business Account (WABA) setup * Mobile number verification and connection * API credentials and access-token configuration * Webhook configuration * WhatsApp message template setup **2. Management Dashboard** The dashboard should allow me to: * View sent and received WhatsApp messages * View message delivery/read/failed status * Manage WhatsApp API configuration * View/manage API tokens and credentials securely * View WhatsApp Business Account and phone-number details * View message templates and their status * View WhatsApp messagi...

My ride-hailing and delivery platform serves about 7,500 registered users and thousands of completed trips, all running on a Laravel backend with customer and driver apps in Flutter. Lately each ride is costing an extra dollar or two purely in Google Maps fees, which is eating into margins. From the data I can see, the backend server appears to be the main culprit for redundant requests. I need a developer who knows both Laravel and Flutter—and who has already tamed runaway Google Maps usage—to step in, audit the codebase, and bring those costs back under control. Scope of work • Trace every Maps call issued by the backend and the two apps, identify duplication or unnecessary refresh loops, and map out the call flow. • Propose and implement smarter strategies su...

I want to launch a fully-functional platform where people can browse, book, and interact with “rental boyfriends” online. The core build should cover partner and client registration, profile pages with photos and bios, a simple booking flow, secure payment handling, and real-time chat or messaging so sessions can be coordinated smoothly. The interface must look contemporary on desktop and mobile, load fast, and remain intuitive for first-time users. You are free to suggest the best tech stack, but I’m leaning toward a mainstream framework (React or Vue for the front end, Node/Express or Laravel for the back end) so future maintenance is straightforward. A clean API layer is important because I plan to add a mobile app later. Key deliverables: • Responsive web app (...

I am building a free-space optical communications platform and need a complete pointing, acquisition, and tracking software package that can consistently maintain sub-degree alignment between my optical terminal and a remote node. Core expectations • Pointing accuracy: better than 0.5° under nominal environmental conditions; 100% uptime once locked. • Communications interface: native Ethernet/IP for command, telemetry, and reporting status. • Platform: x86/Linux preferred; however, I can compile on other POSIX systems if the code is portable. Your solution should include: 1. Real-time control loop that accepts attitude sensor data (e.g., IMU, encoders) and drives two-axis galvanometers and a MEMs array. 2. Acquisition logic capable of coarse scan, fine sc...

I’m in the planning phase of a Solid-style decentralized platform and need an experienced architect to sanity-check my approach. My main objective is to give users maximum data privacy and control, so every design decision—from pod storage layout to access-control mechanisms—has to reinforce that goal. What I expect from you • A short, focused consultation (chat or call) where I can run through my proposed architecture, data flow, and auth workflow. • Clear, actionable feedback on how to tighten privacy, avoid common Solid pitfalls, and keep the system modular for future scaling. • Pointers to best-practice specs, libraries, or reference implementations that would speed up development. If you’ve designed or audited Solid pods, WebID-OIDC f...

I need a skilled Python developer to develop a professional Python-based project. The project should have clean, well-structured, and maintainable code. I need help with development, debugging, testing, and deployment. Experience with Python, automation, data analysis, APIs, and AI/ML would be preferred. Please provide a clear project timeline, milestones, and estimated cost.

We are developing a Shabbat-compliant smart alert lamp designed for observant households in Israel. The system connects Tuya-compatible smart lamps/switches with real-time emergency alert data (Pikud HaOref / Red Alert API). During Shabbat, the lamp must visually alert users (via color changes or preset light patterns) without violating Halachic principles (no user intervention, automated triggers, silent visual alerts, and local state memory). היקף עבודה ותחומי אחריות (Key Responsibilities & Scope): Tuya IoT Platform Configuration: Set up the Cloud project on Tuya IoT Developer Platform. Define Product ID (PID) and Data Points (DPs) tailored for custom smart lighting/alert states. Real-time API Integration & Bridge: Build a lightweight, high-availability backend bridge that ...

I’m upgrading our Laravel-based CRM so every client company can plug in its own WhatsApp Business number through Meta’s official Cloud API, not a reseller platform. The job starts with setting up Meta Embedded Signup inside our app, continues through webhook handling and message-template management, and ends with production-ready token storage that survives refreshes and keeps each tenant isolated. You’ll be working on: • Meta Embedded Signup flow embedded in our existing onboarding wizard • Webhook endpoints that route messages and events to the correct tenant context • Template creation, approval syncing, and marketing-style broadcast support inside the CRM UI • Secure, encrypted token lifecycle management for multiple numbers across compa...

I need a PHP CodeIgniter expert to help with setup, testing and troubleshooting of an existing API. Possible long term working relationship if things go well.

​Hi everyone, ​I am looking to develop a custom Audio Voice Chat Party App (Audio streaming only, NO video required) for entertainment purposes. ​Key Requirements & Core Features: ​Focus: Audio Voice Rooms & Entertainment (Similar to StarMaker/Yalla Ludo audio rooms). ​In-App Economy: Simple user coin-purchasing system (In-App Purchases) & virtual gifting/sending mechanism between users. ​Streamlined UI: Purely user-to-user engagement. NO host earning/withdrawal systems, and NO agency/agent management portals. ​Scope: Complete end-to-end development (UI/UX Design, Frontend, Backend, Admin Panel, and App Store/Play Store deployment). ​Note for Developers/Sellers: If you already have a ready-made script, source code, for an Audio Voice Party app that matches these requirements an...

Looking for a developer experienced with Adobe's UXP extensibility platform (or willing to learn it quickly — it's HTML/CSS/JS-based) to take a working panel prototype further. I have a functioning starting point: a UXP panel for Premiere Pro that displays mock clip-status data with a clean visual design already built. The next phase is connecting it to a real backend via API calls — pulling actual clip data from the active Premiere sequence using Premiere's UXP host API (the ppro object model), matching clips by filename/metadata against records from an external service, and displaying live status instead of mock data. This is a small, well-scoped project — not an open-ended engagement. Ideal for someone who's built UXP or CEP panels before, or has ...

I’m building the first release of my stock-trading platform, “Trade for Tomorrow,” and the immediate priority is to wire in reliable, ultra-low-latency market data for both the NYSE and NASDAQ. Here’s the scope: • Connect to a proven real-time data provider (Polygon, IEX Cloud, Alpha Vantage, or your recommended alternative). • Stream level-1 quotes, trade ticks, and basic fundamentals with sub-second refresh. • Expose the feed through a clean, well-documented REST or WebSocket API so the rest of my application can subscribe and render charts instantly. • Include simple throttling, reconnect logic, and error handling so the service stays resilient during high-volume sessions. • Hand off a lightweight dashboard or sample script (...

Je dirige une entreprise du secteur Technologie et je souhaite mettre en place un outil complet de gestion des stocks. Objectif Créer une solution capable de : • assurer le suivi des inventaires en temps réel ; • générer des rapports clairs et exportables (ventes, rotation, historique) ; • déclencher des alertes automatiques quand le seuil de réapprovisionnement est atteint. Attentes techniques Je reste ouvert sur la stack : proposez le combo serveur, base de données et interface (par exemple Node.js / Express, Django, Laravel, ou toute autre technologie que vous maîtrisez). L’essentiel est que la solution soit sécurisée, évolutive et simple à maintenir. Une interface web...

I am looking for a development partner to deliver a specific, well-defined feature (detailed in Sections 4–6), and ongoing relationship covering infrastructure maintenance and continued application development. This document is both a technical brief and a request for proposal. After reading it, we need you to come back to us with two things: confirmation that you (or your team) have the skills and experience to deliver this work, and a price and timeline for doing so. About This Engagement The product is a property monitoring platform: sensors installed in a property (temperature, humidity) feed a data pipeline that assesses damp, mould, and thermal risk, and generates reports for landlords and tenants. The work described here adds a new UI-driven workflow for triggering those re...

I need a straightforward, standalone two-tier MLM system that will sell a single $9 product. The core of the job is to let every buyer automatically become an affiliate, earn on two levels, and see exactly what is happening with their network and commissions. Scope of work • Referral tracking – unique links or codes generated at sign-up and logged through to purchase on both levels. • Commission calculation – automatic, tier-based payouts that I can adjust from an admin panel. • User dashboard – clean, mobile-friendly view of referrals, sales, and earned commissions, plus the ability to copy their link. It can be custom-built or use an off-the-shelf framework if that speeds things up; the system simply needs to run on its own server without tying in...

TECHNICAL PROJECT DESCRIPTION HuntApp will be a mobile application for iOS and Android, accompanied by a web-based administration panel. The main function is: Search users → Apply filters → Request help → Accept request → Open private chat. 1. Registration and Login The system must allow: * Registration with email and password. * Login with Google. * Login with Apple. * Email verification. * Password recovery. * Acceptance of the Terms & Conditions and Privacy Policy. * Mandatory verification that the user is 18 years old or older. 2. Profile Creation and Management Each user will have a profile containing: * Name or nickname. * Date of birth. * Automatically calculated age. * Gender. * Country. * City. * Social media platforms they use. * Approximate lengt...

I need a tracker for Swiggy Instamart to monitor the availability of electronics items like phones and laptops across various pincodes. Essential Features: - Real-time availability updates - Notifications for availability changes - Historical data tracking Platform: Web-based, Mobile app, or Desktop application (flexible) Login: Optional login Ideal Skills: - Experience in building real-time tracking applications - Proficient in web and mobile app development - Strong background in database management for historical data tracking - Familiarity with notification systems

I need a full-stack web application that lets me create and run customised communication campaigns—very similar to the way utility companies issue bills—only across Email, WhatsApp and SMS at the same time. Core workflow • I upload customer records containing billing information, purchase history and user preferences. • The system merges this data into pre-designed templates (HTML for mail, rich text for WhatsApp, SMS text and a professionally formatted PDF). • Each customer then receives a fully personalised PDF statement plus the matching message over the chosen channels. Key capabilities • Admin console with user management, campaign management and real-time reporting & analytics. • Separate, MFA-protected log-ins for super-admins...

I am ready to move from detailed product-requirements to production code and need a full-stack engineer who can own the build-out of an AI-powered recruitment platform. Temporal will orchestrate every workflow, Postgresql will back our data, and Nous’s Hermes 3 agents will handle reasoning throughout the pipeline. The product vision is clear: • a Publication agent pushes openings to multiple channels; • a Marketing agent drives targeted outreach; • a Shortlisting agent filters applicants in real time; • built-in Analytics & Reporting present actionable insights; • an Application Tracking System ties everything together. Your first milestones involve wiring Temporal to a solid Postgresql schema, standing up Hermes 3 reasoning agents, and exposin...

I need a web-based platform that turns every dynamic QR code into a rich landing experience focused on product-demonstration video. When a customer scans the code, the page should autoplay the video in a clean, mobile-first viewer and immediately draw attention with interactive hotspots (think tap-to-reveal specs or 360° spins) and clearly placed related-product links that keep them exploring our catalogue without leaving the page. Core flow • I generate or upload a video and the system delivers a unique, trackable QR code for it. • The scan opens a branded microsite: hero video on top, interactive overlays layered on cue points, and a section below that surfaces complementary items. • All events—scans, plays, taps, link clicks, session time—feed a das...

I need a NetSuite-based portal where my resellers, distributors and suppliers sign in with their own credentials, see the price book and discount structure tied to their subsidiary/partner record, and place orders manually. Inside the portal they should be able to: • Search or browse our existing item catalogue, add products to a cart, and submit the order. • See real-time, partner-specific pricing that draws from individual price levels or discount fields already stored in NetSuite. • Have the submitted cart convert to a native NetSuite Sales Order, linked back to the partner record for reporting and fulfilment. Security must follow NetSuite’s role permissions so each partner views only their information. I’m comfortable keeping product maintenance in t...

We are looking for an experienced full-stack developer or development team to build a production-ready e-commerce platform with a unique Sales Partner system. This is NOT a standard e-commerce website. The initial products will be physical products such as watches, but the system must be configurable so products, categories, prices, stock and commission structures can be changed easily from the admin panel. The platform will have separate interfaces and permissions for Customers, Sales Partners, Admin, Finance Staff, IT Staff, Stock Keepers and Delivery Staff. We are open to technology recommendations. Please propose the most suitable, secure and maintainable architecture for this project. 1. E-COMMERCE * Homepage, categories and product listing * Product search/filter * Product deta...

Develop a chess website & app 1. PROJECT SUMMARY Kings For Chess will be developed as a complete online chess platform for Website, iOS and Android, built with a scalable architecture and designed to support the client's long-term vision. The project will include the following major components: ● Online competitive and casual chess ● Chess games against bots ● Standard and Advanced Post-Match Analysis ● Stockfish-powered chess engine ● AI Chess Coach and player improvement insights ● Comprehensive tournament system ● Chess variants including; game 1: EV Chess (No check nor checkmate) and game 2: Draw-Penalty Chess (lower ranked player gains greater points while the higher ranked player loses more points) ● Player profiles, ratings, rankings and statistics ● Puzzle (import from L...

I need a secure, clinician-facing web application that lets authorised prescribers create a digital prescription, apply a legally valid electronic signature, and transmit the order straight to my GPhC-registered pharmacy for tracked-courier fulfilment. Primary users will be general practitioners and independent prescribers, who need to create an account and have their licence verified before being able to prescribe. The flow should be simple—search or add a patient, create a prescription, sign, and click “send”. Behind the scenes the platform should store an immutable audit trail, maintain patient records, and push the signed prescription to the pharmacy via secure API (FHIR, HL7 or a custom JSON schema—happy to discuss the best fit). Key requirements • Dig...

I need a dependable partner who can both keep my existing salon-at-home mobile app running smoothly year-round and drive the next wave of improvements. The engagement will cover two parallel tracks: 1. Annual Maintenance Contract • Proactive monitoring, quick bug fixing, security patching and version updates • Monthly health reports and a clear escalation path for any critical issues • Store-listing support whenever OS or policy changes demand it 2. Product Enhancement Roadmap • New features that extend booking, stylist management and payment capabilities • A refreshed, more intuitive user interface that feels premium and effortless for clients and professionals alike • Performance tuning to shorten load times, reduce crashes ...

Multi-Vendor eCommerce Marketplace Development We are looking for an experienced development team or freelancer to build a complete Multi-Vendor eCommerce Marketplace Platform. Important: Before proceeding with any freelancer, we require a complete project quotation based on the scope below. We will review quotations, proposed timelines, technical approach, and relevant experience before selecting a developer. Please do not assume a fixed budget. Submit your best quotation for the complete project. Project Scope Customer Portal * User Registration & Login * Product Search & Filters * Categories & Product Listings * Wishlist * Shopping Cart * Secure Checkout * Payment Gateway Integration * Razorpay * Cashfree * PayU * Cash on Delivery * Order Tracking * Invoice...

We are looking for an experienced Full-Stack Web Developer to build a digital Expert Pool platform for our Swiss healthcare company. The purpose of the platform is to manage a flexible pool of qualified healthcare professionals who can accept individual assignments when additional capacity is required. We want to replace manual coordination through phone calls, WhatsApp messages, spreadsheets and separate availability lists with one simple, modern and efficient web platform. The platform will have two main areas: 1. Administration Portal - Manage healthcare professionals / Pool Partners - Profiles, qualifications and permitted activities - Availability and working regions - Create one-time and recurring assignments - Intelligent search and matching of suitable professionals - Send assi...

I want to turn my idea into a fully functioning mobile application. The primary goal is to create a digital platform, so I’m looking for someone who can guide the entire process—from scoping the concept to getting the app live. Here’s what I need: • A short discovery session to fine-tune the requirements, user flow, and technical approach. • Wireframes and clean UI/UX mock-ups that translate well to both iOS and Android. • Native or cross-platform development, along with the back-end APIs, database, and an admin panel for basic content management. • Thorough testing, bug-fixing, and support for deployment to the App Store and Google Play. If you have a solid track record in mobile app development and can handle design, coding, and launch, I&r...

I need a polished online presence for my residential-remodeling company. First, build a responsive informational website that clearly presents our services—kitchen, bath, and full-home remodels—through an easy-to-browse service listings section. The site should load fast, look great on desktop and mobile, and be simple enough for my team to update later. Alongside the site, create a companion iOS & Android app that handles customer memberships. Members will sign up, view their perks, and keep track of their active projects inside the app. I want a single back-end (API or similar) so the website and the app share one database for user profiles and membership status. I’m flexible on the tech stack; feel free to suggest WordPress, Wix, custom code, Flutter, React Nativ...

I’m building a multi-service, on-demand marketplace delivered as a SaaS platform and targeted at large enterprises. The application must be truly multi-tenant so each corporate client can manage its own environment while sharing the same codebase. Core modules I need you to deliver: • User management – fine-grained roles, SSO options, profile administration and the ability to onboard thousands of users per tenant without performance drops. • Payment processing – secure, PCI-compliant flows that can route split payments to multiple service providers, support refunds, and expose clear reconciliation reports. • Reporting & analytics – real-time dashboards and exportable reports that track transactions, user engagement and service performance a...

I already have the core screens in place for an Android agri-tech application that will serve three field-side user roles plus one admin panel. What I need now is an experienced Android developer who can take the project from this UI prototype through to a production-ready release on Google Play. Scope of work • Wire the existing layouts to a robust back end so that every user can input data, monitor it in real time and receive analytic dashboards that make sense in the field. • Build an alert and notification flow (push & in-app) to keep farmers instantly informed of anything that demands attention. • Integrate a payment gateway so transactions inside the app run securely and are audit-ready. • Prepare all artefacts required for Google Play publication, gu...

I’m hiring an experienced automation specialist to build a production-ready AI social media system for an education brand. Please apply only if you have already built and deployed similar social media automation systems. In your proposal, include links to live social accounts, and portfolio examples of automations you personally created. Briefly state your role, the tools used, and results achieved where possible. Budget 150-200 USD for the full scope. Scope Build one integrated system that can create, approve, schedule, publish, analyze, and improve social content across: Instagram LinkedIn TikTok YouTube Facebook The system should use n8n with AI and API services. It must be reliable, documented, and transferable to the client. Required Features Take blog posts or appro...

Highly experienced NEXT JS and PHP developer needed. The role is to fix the existing bugs in the application and also update few modules. You must meet the following conditions: 1. must be an independent freelancer 2. Must be availble for meeting on a daily basis 3. Must have atleasrt 10 solid years in developing in PHP and 8 years into be fluent in English

City Pro Fix – Professional Home Services Booking Website We are a new London property maintenance company looking for an experienced developer to build a modern, professional and mobile-friendly booking website. The website should include: Easy online booking for Plumbing, Gas, Heating/Boilers, Electrical, Handyman, Air Conditioning and other home services Customer registration/login Customers can upload photos/videos of the problem Online quotation/pricing and secure online payment Booking confirmation, invoices and job status Admin dashboard to manage bookings, customers, services, prices and payments “Become a City Pro Fix Tradesman/Engineer” registration section Tradesmen can upload CV, DBS, ID, qualifications, liability insurance and other documents VIP service opti...

Codex operator -- > Chat/gpt work ai operator -- > Website posting/web admin using Codex to develop/manage and populate the website, fix bugs and do template all in Codex - daily site admin

Necesito un sistema web, accesible desde cualquier navegador, que centralice toda la operación de compra y recolección de recursos marinos que realizo directamente en playa. Módulos clave que espero: • Registro detallado de cada lote de pesca: fecha, especie, peso, precio y embarcación asociada. • Control de apertura y cierre de faena, con sello de hora y usuario para un historial confiable. • Gestión de embarcaciones por región y comuna mediante un formulario manual; debe permitir alta, baja y edición rápida. • Generación de reportes en PDF listos para imprimir o enviar, filtrables por fecha, región, embarcación o especie. • Dashboard con estadísticas en tiempo real: canti...

Project Overview I am seeking an experienced full-stack developer or small team to audit, improve, secure, and modernize an existing production website and infrastructure. This is **not a greenfield project**. An existing frontend, backend/API, PostgreSQL database, content, media, forms, administrative functionality, Docker deployment, and VPS environment are already in place. The current website has experienced intermittent outages and loading failures. Based on prior troubleshooting, the likely problem area is a combination of deployment/runtime stability and security rather than a simple frontend bug. Known symptoms/issues include: Website sometimes hangs or times out while Docker containers still appear to be running. Nginx and Docker are functional, but the deployment is not yet ...

Hello, I’m looking for a developer to work on an existing cybersecurity project and convert it from a desktop application into a full Web App. Current project: CyberShield-Pro GitHub: The current project is built with Python and includes system monitoring and security-related functionality. The required work includes: Converting the existing desktop application into a Web App. Preserving and improving the existing functionality where appropriate. Developing a modern Web interface. Admin dashboard. Advanced security reports. Database integration. External database/API integrations where applicable. Adding appropriate new features based on the existing system. Testing and fixing bugs before final delivery. Current technologies include: Python, PySide6, CustomTkinter, and...

My current Laravel application is stable, but it has reached the point where genuine AI-powered features and better runtime performance are essential. I want three things achieved in one focused sprint: 1. New functionality with the OpenAI API • Content generation endpoints that accept a prompt and return well-formatted copy in JSON. • A language-translation service that can be called from anywhere in the codebase (middleware-friendly), returning translated strings while respecting existing localisation files. 2. Faster, leaner execution through the Gemini API Gemini will handle selected heavy computations now performed server-side. I need thoughtful caching, graceful fall-backs, and measurable response-time improvements without breaking existing routes or queu...

NECRYPTOVIE (NCV) — Complete 4-Phase Blockchain, AI, Marketplace and IoT Ecosystem NEVIE-GLOBAL is seeking a senior blockchain agency or an experienced multidisciplinary technology team to design, develop, deploy and deliver the complete four-phase MVP of the NECRYPTOVIE (NCV) ecosystem as a turnkey project. We want to be fully transparent from the beginning: this is not simply an ERC-20 token development project. NCV is a complete ecosystem combining blockchain, artificial intelligence, automation, SaaS services, digital and physical products, connected devices, IoT, robotics, B2B services and international expansion. Budget Target fixed budget: USD 2,800 for the complete four-phase MVP. The proposal must cover all four phases and include: one total fixed price for the complet...

I need a cloud-based platform that handles every aspect of job scheduling and dispatch for plumbing companies. The application must run smoothly in modern desktop browsers first; mobile or tablet support can come later, so please optimise the user experience, layout, and performance with that priority in mind. At its heart the system should take incoming work orders, match them to available technicians, and generate the most efficient daily plan automatically. To make that happen I want three AI-driven capabilities baked in from day one: • Automated job allocation • Predictive maintenance alerts • Route optimisation The system will need a clean admin dashboard where staff can create, view, and edit jobs, plus a dispatcher view that shows live technician status on a ...

I need a full-fledged invoicing solution that works in the browser and is paired with a dedicated Android app. Think of the overall polish and flow found in SleekBill or myBillBook, then add stronger data security and cloud-based sync so my team can work from anywhere without fear of losing records. Core modules • Invoice generation with GST discounts, and branded PDF export • Expense tracking that ties directly into profit & loss views • Client management with searchable contacts, notes, and activity timelines • Cloud storage so every invoice, receipt, and client detail is backed up automatically and stays in sync between web and Android Key requirements • Single sign-on between web portal and Android app • Role-based access and encryption a...

I’m ready to turn a concept inspired by Airtasker and Uber into a production-ready marketplace where users can book home, transport, and delivery services from their phone or browser. The project covers three experience layers—Customer, Service Provider, and Admin—and must run smoothly on iOS, Android, and the web with a single, shared back end. You will own the full product cycle: UX/UI design, scalable back-end architecture, real-time matching and tracking, in-app chat, ratings, secure payments, and an analytics-friendly admin console. Stripe (or a comparable gateway) and location services need to be wired in from day one, and the codebase should be clean enough for future micro-service expansion. Deliverables • Interactive wireframes and final UI assets for all ...

I'm seeking a developer to create a Minimum Viable Product (MVP) for a Travel Booking and Invoicing system. This platform will primarily manage car rental bookings and generate PDF invoices. Essential Features: - Booking Management: Users should be able to manage their car rental bookings efficiently. - Invoice Generation: The system must generate PDF invoices for all transactions. Ideal Skills & Experience: - Experience in developing booking management systems. - Proficiency in PDF generation for invoices. - Familiarity with car rental booking systems is a plus. - Strong backend development skills. Please provide examples of previous similar work. I have attached the PRD

My Baileys-based WhatsApp integration is working, but it is starting to lag under heavier traffic. I need an experienced developer who knows the Baileys library inside out to: • Profile the current code, identify the CPU, memory and I/O bottlenecks, and refactor or re-architect where necessary to improve throughput and lower latency. • Verify that every optimised change remains fully compatible with the Web version of WhatsApp, including session handling, QR login, message sending/receiving, media uploads and reconnection logic. • Provide a concise report of the issues discovered, the steps taken to fix them and before-and-after performance metrics (e.g. average response time, messages per second, memory footprint). Acceptance criteria – Messages and media must...

MVP Build — Quote Request We're looking for a freelance developer or small team to quote an initial MVP build. This is a rough-scope request to get a ballpark quote — not a full technical spec. Additional phases/tiers will be scoped separately once we're underway. What we're building (high level) A web platform that connects to third-party business software a client already uses (accounting/ERP-type systems, CRM/marketing platforms, etc.), pulls their data into a secure cloud environment, and gives the client a simple portal to log in and view/query that data — including an AI-assisted question-answering feature over their own data. Core skills required Backend development (Node.js/Express or equivalent) — building and hardening API routes, workin...

We are looking for an experienced AI/SaaS developer or development team to help develop a new UK health and social care technology platform. The initial project involves developing a secure, modern care management and resident intelligence platform that transforms day-to-day care records into useful dashboards, trends, alerts, summaries and management insights. Initial functionality includes: • Resident/service-user profiles • Daily care records and notes • Incident and safeguarding recording • Health and wellbeing observations • Behaviour, mood, sleep and nutrition tracking • Outcome and activity tracking • Staff/key-worker records and interactions • Management dashboards and analytics • AI-generated summaries of resident records • AI i...

I want to build a full-featured online learning platform that can host more than one teacher and cover three distinct tracks: مواد أكاديمية، مهارات تقنية، وتنمية ذاتية. Learners must be able to follow lessons in the way that suits them best, so the system has to support فيديوهات مسجلة, حصص مباشرة عبر بث تفاعلي، وملفات نصية قابلة للتحميل. Here is what I expect to receive from you: • A scalable web application (web-first, mobile-responsive) with separate instructor dashboards, student dashboards, and an admin panel. • Smooth upload and streaming for pre-recorded videos, plus an integrated live-class module (you may rely on WebRTC, Zoom, or a similar SDK). • A tidy repository for PDFs, slides, and other text-based files with permission control. • Course creation wo...

Contest: Build the Best Version of Stegstr () We are running a development contest to produce the best working version of Stegstr, the FOSS steganography application (reference site: ). We will open and test submissions ourselves, and award the prize to the single best-performing version. Stegstr is a nostr app. What we want built: - AI Agent Operability - Networking operations and functionality — a solid, reliable networking layer for sending, receiving, and syncing steganographically-encoded content between users. - Steganographic invisibility — the hidden data must be undetectable through normal viewing or casual inspection of the carrier file (image, audio, or other media). - Robustness to real-world processing — the hidden data must survive being sent through com...