Backend development jobs

...with backend expertise to develop a live streaming and video calling mobile application similar to Tango or Bigo Live. The app will allow users to connect with nearby users, make live video calls, send virtual gifts, and interact through live streaming features. The developer should be able to handle both frontend (Flutter) and backend integration (Node.js / Firebase / WebRTC / Streaming SDK). ⸻ Key Responsibilities • Develop a Flutter-based Android application • Implement live video streaming and 1-to-1 video calling • Integrate real-time chat and messaging • Implement user login/signup (Google, OTP, etc.) • Add nearby users feature using location • Implement virtual coins & in-app purchase system • Integrate gift sending ...

...developed using PHP and Laravel, but we are currently facing a few issues related to API integration and payment gateway functionality. We are looking for an experienced backend developer who can quickly analyze the system and resolve these errors. Responsibilities Debug and fix Laravel backend issues Resolve API integration errors Fix payment gateway related problems Ensure the system works smoothly after fixes Review backend code and improve stability if needed Requirements Strong experience with PHP and Laravel Experience with API integrations Experience with payment gateway debugging Good knowledge of MySQL and backend debugging Ability to quickly identify and fix issues Project Details Project Type: Bug fixing / troubleshooting Experience Level: Expe...

Illustrator Brief – Reflective Storybook Project Project Overview This project is an illustrated reflective storybook to accompany a counselling training presentation. The book visually represents a personal journey of growth using the metaphor of a girl holding a tangled ball of string that slowly unravels as she grows and develops. The illustrations should be simple, emotive and reflective, inspired by the style of Charlie Mackesy (The Boy, the Mole, the Fox and the Horse). Visual Style • Soft hand‑drawn illustration style • Pencil or ink sketch feel • Minimal background • Gentle and reflective tone • Emotionally expressive but simple • Warm, human, slightly imperfect lines rather than polished digital art

Speaking perfect English is more about consistent practice and smart strategies than being “perfect” right away. Here’s a detailed approach you can follow: ⸻ 1. Master the Basics • Grammar: Know basic sentence structures (Subject + Verb + Object) and tenses. Example: I eat apples vs I ate apples. • Vocabulary: Learn 5–10 new words every day and use them in sentences. Focus on words you can actually use in conversation. • Pronunciation: Use apps like Forvo or Google Translate to hear how words are pronounced. Repeat after them. ⸻ 2. Listen Actively • Watch English shows, movies, or YouTube videos and listen carefully to how native speakers talk. • Pay attention to: • Stress on words • Intonation (rising/falling voice) &b...

I already have a working web front-end, but the data layer behind it is still a proof-of-concept. I now need a production-ready Supabase backend that can confidently power inventory, CRM, marketing, and document-filing features at scale—and, where the current React code shows strain, you will refactor it so the whole stack remains clean, testable, and easy to extend. What the backend must cover • Inventory Management: robust stock tracking and supplier management tables, triggers, and Row-Level Security so every quantity change is auditable. • CRM: lead tracking, customer segmentation, and performance analytics views that can grow into millions of records without manual tuning. • Document Filing: storage buckets with signed-URL access, versioning, ...

... • Secure user authentication (Apple ID preferred, but I’m open to Firebase/Auth0 if you have a strong argument) • 1-to-1 and group messaging with push notifications that actually land • A lightweight, modern interface that looks at home on iOS 17+ I’ll supply wireframes and branding assets as soon as we kick off. You’ll handle the rest—from setting up the project and choosing the right backend stack to submitting a TestFlight build I can try on my devices. Clean, well-commented code in a private Git repo is non-negotiable; I intend to keep expanding this app, and clarity now will save us both headaches later. Acceptance criteria for this phase: 1. Users can register/log in and exchange messages instantly. 2. Messages sync across d...

We are building a high-trust, AI-optimized real estate brokerage system on Zoho. We already manage our properties in Zoho CRM, and it is integrated with our website. Our current setup is: Zoho CRM for property data management, a backend layer, and a frontend website. Property data flows between these systems through APIs. I already have a detailed blueprint with multiple workflows, objectives, and hundreds of fields. Though I am open to listen to more ideas, however my challenge is not the ideas, but my challenge is architecture, usability, and correct logic design. I need an expert who can guide me to structure everything in a way that is easy to navigate, not cognitively heavy for agents, and designed so that AI can improve the effectiveness of the system over time. The system mus...

...Work-from-home We’re looking for a talented Full Stack Software Engineer to join our growing, fully remote team. You’ll work across the entire stack—building scalable backend services, intuitive web and mobile interfaces, and shipping production-ready features that make a real impact. This role is ideal for someone who enjoys ownership, collaboration, and working in a fast-paced environment using modern tools and best practices. What You’ll Do: Design, develop, and maintain full-stack applications from concept to deployment. Build responsive, user-friendly interfaces using modern frontend frameworks. Develop scalable backend services and APIs. Collaborate closely with product managers, designers, and engineers to deliver high-quality features. Wr...

...end goal is a single code-base driving iOS, Android and a responsive web app, all sharing the same backend, database and admin console. Core flow • Dual-sided accounts: providers list offers, customers browse, book and pay. • Multiple sign-in methods are mandatory—classic email & password, social media (Google, Facebook, Apple, etc.) and phone number with OTP. • Real-time availability, location (for home services), in-app chat, push notifications and a multi-currency payment gateway round out the feature set. Tech preferences I’m open to Flutter, React Native or separate native builds as long as the UX feels identical across platforms and the web version stays lightweight. The backend can be Node, Django or Laravel, but must expose ...

I need a full-stack developer, or team, to build a multi-tenant logistics management system built on Angular 14 for the front-end, .NET Core for the API layer, and SQL Server as the data store. The one capability that must be solid from day one is Fleet management—vehicles, routes, and operational data must stay completely segregated per tenant while sharing the same codebase and database. Everything has to scale cleanly as new companies sign up, so tenant isolation, role-based access, and configurable settings are essential parts of the architecture. Core scope • Set up the tenant-aware user authentication/authorization flow (JWT or similar) • Design the SQL Server schema with row-level or schema-level isolation to keep each tenant’s fleet data separate &...

...front-end while setting and using all plugins • A private custom SuiteDash members portal, Coaches and Admin Cockpit Tier based access and logic dashboard History, assessment and progress tracking • Deep Autonomation throughout including from lead, nurture, onboarding, instructions and follow ups • Structured communication for group and personal one-on-one • A scalable administration hub keeping the backend efficient for long term operation The entire ecosystem is designed to honor the mission to help others behind the coaching work — providing clarity, support and emotional safety for members while. Key points • Keeping WordPress dedicated to education, lead capture, and nurturing—is the correct approach. This ensures the front-end remai...

I'm seeking an experienced web developer to create an engaging and informative website for our book convention and retreat company. The site should not only promote all our events and retreats but also showcase past events. Essential Sections: - Upcoming Events: Detailed information about our future events and retreats. - Past Events Gallery: A visually appealing gallery showcasing our past events. - About Us: Information about our company, mission, and team. - Applications for Future Events: A section where potential participants can apply for future events. - ADA Information: Accessibility information as per the Americans with Disabilities Act. Ideal Skills and Experience: - Proven track record in developing event-focused websites. - Strong portfolio showcasing past wor...

...mobile application that must launch on both Android and iOS. The concept, wireframes, and design assets are ready; now I need the complete app coded, tested, and prepared for store submission. Scope of work • Plan the architecture, choose an appropriate tech stack (native Kotlin + Swift or a cross-platform solution such as Flutter or React Native), and set up the project repo. • Integrate the backend REST APIs I provide, handle secure authentication, real-time push notifications, and any additional modules defined in the product backlog. • Implement analytics, automated tests, and a simple CI/CD pipeline so each milestone produces a store-ready build. Deliverables 1. Clean, well-documented source code for both platforms. 2. Play Store and App Store re...

...for Local Service Marketplace (GTA-based Startup) Project Description: "We are Velvook, a Toronto-based startup building a high-trust service marketplace similar to 'Justdial' or 'Thumbtack.' We are looking for an experienced Full-Stack Developer to build our MVP. Core Features Required: User Roles: Separate flows for Homeowners (Clients) and Service Providers (Pros). Verification Engine: A backend module to upload and verify Ontario Business Licenses and Insurance (CGL). Trust-Score Algorithm: Logic to rank providers based on verification, reviews, and responsiveness. Geolocation: Map-integrated search for the Greater Toronto Area (GTA). Payment Integration: Stripe/PayPal for provider subscriptions. Tech Stack Preferred: React/Node.js or Flutter...

...Sewer"), upload a photo, and assign a severity rating. * Dynamic Safety Heatmap: A visual overlay on the map showing areas with high concentrations of reported issues. * Dual-Option Routing: When a user enters a destination, the app will offer two choices: the standard "Fastest Route" and our proprietary "Safest Route" (which actively avoids low-rated hazard zones). * Basic Admin Dashboard: A backend interface to view, verify, or remove crowdsourced reports to maintain data integrity. 3. Technical Requirements (For Cost Estimation) The technology stack is selected for rapid deployment, cost-efficiency during the beta phase, and the ability to handle complex geographic data. A. Frontend (Mobile App) * Framework: Flutter or React Native (for single-code...

...breakdowns into quick-loading charts and tables. I want users to open the app and immediately understand where their money went today, this week, and this month, without digging through settings. A few practical notes: • Modern, responsive front end that works just as well on a phone as on a laptop. • Simple, secure auth (email / password or OAuth) so every user’s data stays private. • Backend built on a framework you’re comfortable scaling (Node/Express, Django, Laravel, etc.). • All figures stored with proper currency precision to avoid rounding errors. • Clear README plus a short video or GIF showing the add-transaction flow from start to dashboard refresh. I’ll review by spinning up the project locally, adding a week&...

Hello, I can develop a **simple AI...analyzes the image using a **pretrained detection model** * Result displayed within **3–5 seconds** * Shows **AI Probability Score (0–100%)** * Final result: **AI Generated or Real** * Simple **report page with uploaded image preview and results** **Technology Stack:** * **Frontend:** HTML / JavaScript or React (clean and simple UI) * **Backend:** Python with **FastAPI** * **AI Model:** Pretrained model from **HuggingFace or similar** * **Deployment:** Render (backend) + Vercel (frontend) **Deliverables:** * Fully working AI image detection website * Clean and documented source code * Deployment setup and support Currently, the project will focus **only on image detection (no video detection)**. Looking forward to workin...

Hello, I can develop a **simple AI...analyzes the image using a **pretrained detection model** * Result displayed within **3–5 seconds** * Shows **AI Probability Score (0–100%)** * Final result: **AI Generated or Real** * Simple **report page with uploaded image preview and results** **Technology Stack:** * **Frontend:** HTML / JavaScript or React (clean and simple UI) * **Backend:** Python with **FastAPI** * **AI Model:** Pretrained model from **HuggingFace or similar** * **Deployment:** Render (backend) + Vercel (frontend) **Deliverables:** * Fully working AI image detection website * Clean and documented source code * Deployment setup and support Currently, the project will focus **only on image detection (no video detection)**. Looking forward to workin...

I’m ready to turn a set of product requirements into a production-ready mobile application powered by modern NLP. The core idea and UX have been validated; what’s missing is the full technical build. Backend You may work in Python with Django or in a Node.js stack—whichever you can move fastest and most confidently with. The service layer must expose clean REST or GraphQL endpoints, be fully documented, and include automated tests. AI / NLP Layer The app relies on advanced language processing for classification and summarisation tasks. I’m open to integrating HuggingFace models, Google Cloud NLP, or the OpenAI API; we can choose together based on speed, cost, and accuracy. Mobile Frontend A cross-platform experience is essential. If you prefer React ...

I'm looking to develop a TradingView indicator coupled with a trading bot that executes commands based on the indicator's signals. My manual trading has been successful, but automation via Pine Script results in poor backtest outcomes. Scope of work - Develop a Pine Script v6 indicator for TradingView with robust backtesting showing 25-50% annual returns over 150-450 tr...delta and bid/ask analysis. - Provide historical backtest validation of the system across multiple years and trading pairs. Additional information The core indicator logic involves multi-timeframe levels, ATR positioning, volume analysis, and more. Manual trading is profitable, but automation needs refinement for optimal backtesting results. Combine these capabilities to ensure the successful development ...

...wallet address to search for its transaction history. Once the address is submitted, the system should fetch the data from the blockchain API and display a list of recent transactions associated with that wallet. The results should appear in a simple dashboard or table format showing details such as transaction ID, amount transferred, date, and confirmation status. The project should include backend logic written in either PHP or Python, depending on the developer’s preference. The system must be compatible with a Linux server environment and should be structured so it can be easily deployed and configured. The application should also include a simple search feature that allows users to look up previously searched wallet addresses stored in the database. The final deliver...

Develop a website that runs pop-up pickleball tournaments. Pop-up tournaments are 8 person tournaments that start with a round robin format followed by playoffs and championship round. Championship round winning team and runner-up team get points that roll up into a leader board. The website should allow organizers (people that run pickleball facilities) to create unique pop-up tournaments. Players then signup for a given pop-up tournament that they choose. Results of each match must be recorded and stored in the system. Additionally there should be a global leadership board that pulls in results from all pop-ups. The leadership board is a points based system. If you win a popup the player gets 3 points. If you are a runner up you get 2 points. Leadership board must be secure and ...

I’m ready to take my line of dog supplements onto Amazon a...hero shots, lifestyle images, and infographic-style photos that highlight key benefits, then craft persuasive, SEO-friendly titles, bullets, and A+ content that speak to dog owners. Acceptance criteria • Fully functional Amazon Seller Central account with all SKUs live and error-free. • Minimum 7 high-resolution images per SKU, meeting Amazon’s technical requirements. • Optimized copy (backend keywords included) that passes indexing checks for relevant supplement terms. • Clear hand-off notes so I can manage inventory and basic edits myself. If you’ve launched pet or supplement brands on Amazon before and can point to results, let’s talk timelines and get this store out...

I need a mobile app and website for documentation management, supporting both iOS and Android. Key Features: - Document upload and storage - Document control - Project correspondence - Submittals - RFIs (Requests for Information) - Transmittals - STC (Submittal Tracking Change) User Role: - Admin Ideal Skills & Experience: - Mobile app development (iOS & Android) - Web development - Experience with document management systems - Strong understanding of user roles and permissions - UI/UX design for intuitive navigation

I'm looking for an experienced e-learning developer to create a comprehensive portfolio that showcases a variety of e-learning formats. The portfolio should include: - Video tutorials - Interactive quizzes - Vyond Animations - E-learning courses developed in Articulate Rise - Simulations - Storyline 360 interactives - Storyboards Ideal Skills and Experience: - Proficiency in Articulate Rise and Storyline 360 - Experience in creating engaging video tutorials and interactive quizzes - Strong design skills for animations and simulations - A strong portfolio demonstrating previous work in these areas Please provide samples of your previous work in your bid. Looking forward to your proposals!

...passionate Full Stack Developer and Creative Designer with over 2 years of hands-on experience building modern, responsive, and high-performance web applications. I specialize in developing complete web solutions from scratch — from designing clean and attractive user interfaces to building secure backend systems and managing databases efficiently. What I Can Do For You Custom Website Development (Frontend and Backend) MERN Stack Applications (MongoDB, , React.js, Node.js) REST API Development and Integration JWT Authentication and Role-Based Access Control Admin Dashboards and Employee Management Systems E-commerce Websites Portfolio and Business Websites Database Design (MySQL and MongoDB) Bug Fixing and Performance Optimization Design Ski...

...similar to Amazon (MVP version)**. The current system already supports: • Product listing and product details • Shopping cart functionality • Checkout process • Payment integration with Stripe • Order creation and storage in the backend database The platform is already built with **Angular (frontend), Spring Boot (backend), and MySQL (database)**. Your task will be to extend this system into a **complete marketplace platform with Admin, Seller, and User panels**, along with secure APIs and AWS production deployment. --- ## Tech Stack Frontend • Angular Backend • Java Spring Boot • REST APIs Database • MySQL Authentication • JWT Authentication • Role-based access (ADMIN, SELLER, USER) Payments • S...

...I’ll follow your deployment instructions. Deliverables 1. Fully functional website deployed to my host. 2. Admin login so I can publish new educational content myself. 3. Short hand-over guide (PDF or video) covering how to add articles, update menus, and perform routine maintenance. If you have prior experience in mining, geology, or education portals, that’s a big plus, but solid web development skills and a knack for user-centred design are most important. Let me know your proposed tech stack, timeline, and any questions you have about the content structure....

...brands—clients who expect innovative, perfect solutions delivered quickly and without error. If you thrive under pressure, love tackling complex challenges, and are driven by a commitment to excellence, we want to hear from you! Green Arrow is a small agency, because of this we can only recruit developers that are happy to dig in and work well together, you would be expected to work both frontend and backend WordPress, work with custom Wordpress, and have very strong proven core php skills. Many of our websites have custom work on them, you need to be confident at solving issues across many websites. Key Responsibilities · Rapidly develop, update, and maintain Custom WordPress websites for major brands, ensuring fast turnaround and flawless quality. · Trou...

We are seeking an experienced Senior Electronics Engineer from Europe or the USA with expertise in wearable devices and IoT systems to help design and develop a wearable sensor board. The project involves PCB design, schematic development, and firmware programming for ECG sensors, Li-ion battery charging, USB communication, and an ESP32 MCU. Key Responsibilities: -PCB Design: Develop high-quality PCB layouts for a wearable sensor board, including ECG connectors, USB-to-UART interfaces, and battery charging circuits. -Schematic Development: Create and review schematics for the BG77 LTE module, ESP32, Li-ion charging, and sensor interfaces. -Firmware Programming: Implement and optimize firmware for the ESP32 MCU, including Wi-Fi/BLE communication, sensor data acquisition, and ...

I need an experienced Android team to build two separate Play-Store-ready apps, starting with the Medicine Selling App. The ride-hailing platform will follow once the pharmacy solution is live. Medicine Selling App – phase one The core experience is a clean, secure mobile storefront where customers log in with phone-number verification, search medicines by name, browse existing product categories, upload a prescription when required, add items to cart, pay in-app, and track delivery in real time. An internal courier module should let my dispatchers assign, monitor and update order status from preparation through doorstep drop-off. Rider Booking App – phase two After the pharmacy app is published, I’ll move straight to the Uber-style solution: passenger and driver si...

...dashboards • Content creation assistance driven by large-language models that adapt to brand voice The Copywriting module should leverage GPT-4-class models to draft ads, emails, landing pages and micro-copy, with a simple prompt interface and tone presets. Tech expectations – Web dashboard (React preferred) plus REST or GraphQL endpoints for every feature – Python, Node or an equally strong backend, containerised and deployable on AWS – Clean, well-commented code in a private repo, full documentation and install scripts Acceptance criteria – Working demo on a staging environment – Automated tests for critical paths – Short video walkthrough and user guide If you have live examples or code from similar SaaS or ML pr...

I need fifteen real people, each with their own Android phone with a Gmail address. Once you share the addresses with me, I’ll add a free account for every tester in the app’s backend and send over the install link. What I expect from you: • Source and coordinate 15 distinct testers, one device per person, all using separate Gmail accounts. • Make sure each tester installs the APK, logs in with the credentials I supply, and spends at least a few minutes exploring the main screens so we can confirm everything loads on different hardware configurations. Payment will be released once I can confirm that all fifteen accounts have logged in from unique Android devices and I’ve received the brief notes mentioned above. Feel free to gather friends, famil...

...pages with variants (color, fabric, design) * Category pages for different saree types (Silk, Banarasi, Cotton, Wedding etc.) * Integrate secure payment gateways (Razorpay / Cashfree / Shopify Payments) * Shipping setup and order management * Mobile responsive design * Speed optimization * SEO-friendly structure * WhatsApp integration for customer support **Required Skills:** * Shopify store development * Shopify theme customization * Liquid coding * Experience with fashion / clothing e-commerce preferred * Payment gateway and shipping integration experience **Deliverables:** * Fully functional Shopify store * Admin training for product upload and order management * Clean, optimized, and scalable setup **Timeline:** 10–15 days **Budget:** Open for discussion based on ...

I am seeking an experienced academic researcher to assist with the development and refinement of the research design component of a postgraduate-level study. Scope of Work: * Refine and structure the research problem and objectives * Develop 2 to 3 clear, testable research hypotheses * Design a conceptual framework (with explanation) * Recommend an appropriate research methodology (quantitative approach preferred) * Justify sampling strategy and data collection plan * Outline proposed data analysis strategy (e.g., regression / SPSS) This task focuses specifically on strengthening the research design and methodological foundation rather than developing a full thesis chapter. The work must demonstrate analytical depth, logical alignment of variables, and postgraduate-level academic ri...

...moonlighting engagement. If you have another project/day job, please do not apply. 3–4 years of experience preferred. We are not looking for the most senior developer in the room — we are looking for the right one. Specifically: someone who works fluently with AI-assisted development tools (Claude Code in particular), moves fast, writes clean code, and knows how to validate and correct AI output. If you distrust AI and prefer to write every line yourself, this is not the role for you. --- WHAT YOU WILL BUILD - Python/FastAPI backend (modular monolith, PostgreSQL, Redis, DigitalOcean) - Ericsson digital currency API integration (very well documented): payment initiation, status polling, callback handling, idempotency - The lifecycle logic of the practice: I...

I need a secure, easy-to-navigate admin slot designed specifically for our system administrators. The slot will plug into our existing application stack (I’ll share tech details once we start) and must let admins view key metrics, configure settings, and carry out day-to-day maintenance without digging into code. Key goals • Clean dashboard showing live system status and logs • Role-based access so we can safely delegate tasks • Simple interface for adding, editing, or disabling users and services • Audit trail for every critical action • Solid documentation so future developers can extend the module The code has to follow current best practices for security, be fully commented, and include a quick walkthrough or short video demo to get my team up...

...logic, and validation checks - Handle data type mapping, constraint differences, and stored procedure conversions between MySQL and PostgreSQL - Perform dry runs, staged migrations, and rollback planning to minimize downtime - Validate data integrity post-migration with thorough reconciliation testing - Document the migration process, decisions, and any schema changes made - Collaborate async with backend and product teams to align on timelines and minimize disruption You Bring: - Proven experience migrating large MySQL databases to PostgreSQL - Hands-on experience with Supabase (must-have) - Strong SQL skills across both MySQL and PostgreSQL dialects - Understanding of schema design, indexing, and relational data modeling - Experience with ETL pipelines and data transformation ...

I need a bespoke website that presents my business as a clean, modern portfolio. The look I have in mind is unmistakably modern and minimalistic—plenty of white space, tight typography, and subtle animations that keep the focus on the work itself rather than on decorative clutter. What the site must do • Act as a showcase: visitors should immediately see curated image galleries alongside short, well-structured articles that explain each project or service. • Load fast and scale well on mobile, tablet, and desktop. • Give me a simple way to update both the images and the accompanying text without touching code—either a lightweight CMS or a custom admin panel is fine as long as it’s intuitive. • Include essentials like a contact form, basic on-p...

I’m adding AirPay to the existing Node.js backend and need a clean, production-ready module that handles straight-forward payment processing. The service must accept credit/debit cards, digital wallets, and bank transfers through AirPay’s API, expose clear endpoints for initiating a charge, capture the asynchronous callback, and return the final transaction status to the frontend. The codebase is an Express app written in modern JavaScript. Please wire the AirPay SDK (or raw REST calls if you prefer) into a dedicated service layer, include middleware for request validation and error handling, and document every environment variable or secret the system requires. Unit tests covering happy-path and typical failure scenarios are essential, and I’ll run test credentia...

I’m building a full-scale online travel agency similar to MakeMyTrip or Goibibo and need a developer who can take the project from concept to launch. The site must cover every major travel vertical I operate in—Flights, Hotels, Holiday Packages, Visa services, Bus, Destination Expert advice, Trains, and Travel Insurance—while keeping the user experience fast, clean, and mobile-first. Core features I expect from day one: • Smart, real-time search and booking flows for Flights, Hotels, and Bus tickets, powered by reliable GDS/API integrations. • Three distinct account types—Individual travelers, Travel agents, and Corporate clients—each with dashboards, saved trips, and wallet/credit management. • Dynamic packaging to let users bundle hotels ...

...billiards events with three simultaneous camera feeds—one wide room view and two table angles—streamed via RTMP to our own server. Everything must be written in Kotlin using Jetpack Compose and CameraX, and follow a clean, modular architecture (Repository pattern, MVVM, Coroutines, exhaustive error handling). Core workflow • Secure the session with JWT credentials pulled from our WordPress backend. • Initiate and maintain three parallel CameraX pipelines, encode them, and push to the custom RTMP endpoint with minimal latency. • Keep a persistent connection for two-way communication so the server can send commands (start / stop stream, trigger one of 50+ sound effects, display in-app notifications) and receive health metrics. • Expose a li...

In java based architecture applications, we have used Backend Dropwizard framework (Jetty) instead of it, we have to replace it with Backend Spring Boot framework Also, in this application, we have to replace DynamoDB database with Apache Cassandra instead of it. migration plan Current flow - Client / Messenger App -> WebSocket Layer -> Redis - Cache-> gRPC over UDS -> Dropwizard (Jetty) -> DynamoDB (message store), FoundationDB for metadata ---------------------------- Required flow 1) Replacing Dropwizard → Spring Boot 2) Replacing DynamoDB→ Cassandra (message data) WebSocket layer logic in the Messenger application. → Elixir → (gRPC Request over UDS) → Spring Boot (Client → Phoenix → gRPC → Spring → Cassandr...

I’m ready to place several finished b...access to any entertainment, technology, health or pure business media sites, I’d like to collaborate. We can fine-tune headlines or angles so they sit naturally within your section and adhere to each platform’s editorial guidelines. Deliverables (negotiable): • One live, indexed URL per agreed outlet, published on the site’s primary domain (no sub-blogs or content farms). • Screenshots or backend confirmation immediately after publication. • Permanent or long-term links—no pay-to-delete arrangements. I’m open to discussing per-placement milestones, expected turnaround times and any platform-specific requirements you may need from my side. Let’s talk details and get these business ...

This quote involves the complete redesign and redevelopment of the existing website using WordPr...the existing website using WordPress as the CMS, built from the ground up without using any pre-made themes. The goal is to create a modern, high-performing, and scalable website that aligns with the brand identity, improves user experience, and supports future growth. Scope of Work Custom WordPress development (no third-party themes) Modern, responsive UI/UX redesign Custom page templates and layouts SEO-friendly structure and performance optimization Secure, scalable, and easy-to-manage backend Content migration and testing (if required) Objective To deliver a high-performance, custom WordPress website that offers complete design control, improved user experience, and long...

I’m building a voice-driven receptionist that greets visitors or callers, listens to their questions, and replies with a natural-sounding voice. The core flow is straightforward: • Speech-to-text: Accurate recognition of English only is required for now. • NLP: Classify the intent and pull the correct answer when a caller asks about our business hours or location. • Text-to-speech: Respond with friendly, human-like audio. • Fallback: whenever the system is unsure, it should politely ask for more details rather than handing the call off or giving a canned line. I need the full stack—STT, intent handling, response generation, and audio playback—wrapped in a module that I can drop into my existing website widget today and expand to a phone line ...

I need a seasoned React Native developer to build a full-featured cashback platform that runs smoothly on both iOS and Android. The app’s core revolves around three pillars: secure user registration & login, reliable transaction tracking, and accurate cashback calculation and management. Cash rewards will sit in a wallet ...In-app wallet logic with balance updates triggered by tracked transactions • Admin-friendly way to adjust cashback rates and view analytics • Clean, well-commented code and concise handover documentation If you’ve previously shipped React Native apps that handle financial data, rewards, or loyalty programs, I’d love to see them. Let’s discuss your preferred stack for state management and backend integration so we can ...

...and smart-TV ecosystems, the UI needs to scale gracefully from touch interactions to remote-control navigation. I’ll provide brand assets, sample content feeds, and access to the existing CDN. What I need from you is an end-to-end codebase, a lightweight Node/Python backend that drives the AI recommender, and store-ready builds for each platform. Deliverables • Unified code repository with modular front-end targets: Android (Kotlin/Java), iOS (Swift/Objective-C), LG webOS (web-app), Samsung Tizen (Tizen Studio) • Backend microservice powering recommendations, user profiles, and playback entitlements • API documentation & Postman collection • CI/CD scripts that produce release builds and run automated tests • Short video demo a...

Summary I have a custom app built using the tech specs below. The apps function is to: ...function is to: Read emails, extract attachments of the users choice, merge the attachment's data in a prepared JSON format for use on an external chrome extension. The Gmail function has some bugs and I need an expert to fix the filtering function and then take a look at the remaining code to approve it is ready to launch. Tech Specs: Frontend: 15.3.5, React 18, TypeScript, Tailwind CSS Backend: API routes, Prisma ORM Database: PostgreSQL (Supabase) Auth: Key Features: Gmail integration, PDF processing, document extraction, AI analysis (OpenAI) Architecture: Full-stack monolith with API routes, file uploads, email sync, PDF text extraction, and application tracking system.

My goal is straightforward: I need our line of physical products to generate more sales through well-structured, tightly optimised campaigns on Google Ads, Facebook Ads and Instagram Ads. The product catalogue is ready, pixels and conversion tracking tags are already installed, and creative assets exist in multiple formats. What’s missing is a cohesive, data-driven performance marketing approach that unifies search, shopping, display and social placements into one revenue-focused funnel. Here’s what I expect delivered: • Channel strategy that aligns spend across Google Ads, Facebook Ads and Instagram Ads for maximum ROAS. • Campaign build-out—including keyword sets, audience segments, ad groups, copy and creative variations—mapped to each stage o...