I need my website to support very high traffic at once. I have a dashboard and data base as well that I need to confirm will operate once we go larger scale. We have a press release coming soon which will drive a large spike. I need to confirm the website will be able to handle the load.

Experienced Dev Ops from start to finish, We are seeking a skilled Python and React Developer Expert for Web Based Trading Application Platform to create a robust and user-friendly application for both web and mobile users. The ideal candidate will have experience in developing and launching apps from start to finish. Knowledge of stocks and options is necessary or trading experience is a MUST. If you do not know how to trade stocks or options, you will be required to take a strategy class (fee paid by the applicant freelancer) with founder owner, to learn how the trading strategy works, in-order to be hired. Deliverables • Ensure existing application functionality and performance as per founder owners requirements • Strategy is proprietary and is confidential for period of 30 years • All coding is live over anydesk each day, all coding sessions are recorded over zoom

Principal Full-Stack Engineer (React Native • Node.js • AWS • AI Infrastructure) Mission Own the entire engineering stack and take FitCheck from its current state to a stable, production-ready application. You will architect, build, integrate, deploy, and lead all technical execution across mobile, backend, infrastructure, and AI services. Required Skills * React Native (Expo) * TypeScript * Node.js (NestJS) * PostgreSQL / Aurora * Kafka * Redis * REST APIs * WebSockets * AWS * EKS * ECS * EC2 * S3 * CloudFront * IAM * CloudWatch * Kubernetes * Docker * GitHub Actions CI/CD * Cloudflare * Firebase * GPU deployment on AWS * PyTorch model deployment * AI inference APIs * Authentication * Performance optimization * Security * Monitoring * Production deployments Responsibilities * Own the entire codebase. * Lead architecture decisions. * Build frontend and backend features. * Design and implement APIs. * Deploy and maintain AWS infrastructure. * Build and maintain CI/CD pipelines. * Deploy and manage GPU inference servers. * Optimize performance and scalability. * Review all code. * Fix production issues. * Ship new releases. * Coordinate any additional contractors if needed. * Take full ownership of technical delivery. Requirements * 10+ years software engineering. * Led production applications from development through launch. * Expert in React Native and Node.js. * Expert in AWS. * Experience deploying AI workloads on GPUs. * Experience scaling applications to hundreds of thousands of users. * Strong architectural and DevOps experience. * Excellent communication and ownership. Success Criteria Within the first 90 days: * Complete integration of frontend and backend. * Production-ready CI/CD. * Stable AWS infrastructure. * Reliable AI inference pipeline. * End-to-end testing. * Production deployment. * Documentation. * Clear engineering roadmap.

We're a small SaaS for makers (candle/soap/craft businesses) called Makers Manager. We need a Shopify integration built. This is a focused engagement, not a build-from-scratch project: our app already exists (React + TypeScript + Supabase), and I handle most day-to-day development myself. What the integration does (this is the whole MVP): - Sales in: pull orders from each connected Shopify store into our app (webhook + a reconciliation fallback, idempotent so re-syncs never duplicate). - Products + inventory out: push product catalog and inventory levels from our app to Shopify. Our app is the source of truth for stock. When a Shopify sale comes in, we recompute stock and push the authoritative number back out. - Multi-tenant: every one of our customers connects their own Shopify store via a one-click "Connect and authorize" flow. No customer should ever have to generate an API token — this must be a proper public Shopify app using OAuth. Scope of your work: - The public Shopify app: OAuth authorization-code flow, secure per-workspace token storage (server-side only, encrypted), connect/disconnect. - Orders-in and inventory/products-out sync (GraphQL Admin API; inventorySetQuantities for per-location stock). - SKU matching, with unmatched line items surfaced for the user (never silently dropped). - Compliance to pass review: protected-customer-data request/attestation and the three mandatory GDPR webhooks (customers/data_request, customers/redact, shop/redact). - I'll build the UI and the CRUD-y pieces myself. You must have (please don't apply otherwise): - Shipped at least one public Shopify app that passed Shopify's app review. Include a link or the app name. This is the #1 requirement — I need someone who's already done the OAuth + protected-data + compliance path, not learning it here. - Real experience with the Shopify Admin GraphQL API, webhooks (HMAC verification), rate-limit/backoff, and the Inventory API (per-location levels). - Comfortable with a Postgres/Supabase backend and row-level security for multi-tenant data isolation. Nice to have: inventory/COGS domain experience; prior maker/commerce tools; Etsy or other marketplace APIs (we'll do those next). How we'll work: - Fixed-price, milestone-based. The first step is a small paid trial task (a few hours): stand up the OAuth handshake against a Shopify dev store and store a token securely. If that goes well, we do the full build in milestones. - I'm responsive and technical, so you won't be waiting on me or guessing at requirements — there's a detailed spec ready to share.

We are choosing between CMSs for our website. Seeking consultations comparing Contentful, Storyblok, Sitecore, and WordPress with our needs.

Looking for an experienced Bubble.io developer to build a crowdfunding platform MVP from the ground up. Core Features Needed: • User registration and profile creation with email domain restriction • Campaign creation and management • Donation flow with optional donor tip at checkout • Stripe Connect integration for automated payouts • Identity verification integration triggered at payout stage via third party API • Basic admin dashboard for campaign review and approval • Mobile responsive design How Verification Should Work: • Users create campaigns freely • Verification is triggered only once a campaign reaches a minimum funding threshold • Payout is held until verification is confirmed • Verified users receive funds automatically upon confirmation How Tipping Should Work: • Optional tip prompt presented to donor at checkout • Tip amount configurable by admin • Tips collected separately and routed to platform account Requirements: • Strong Bubble.io portfolio with similar platforms • Proven Stripe Connect experience specifically • Experience integrating third party APIs into Bubble • Clean, well documented workflows • Available for post-launch support Project Details: • Scope: MVP only, core functionality listed above • Timeline: 4-6 weeks

NobleProg is seeking an experienced Full Stack Development Trainer to deliver live, instructor-led training focused on building web applications using the FARM stack: FastAPI, React, and MongoDB. This course focuses on helping developers build dynamic, high-performance, and scalable full stack web applications using Python-based backend development, React frontend development, and MongoDB database integration. Engagement Details Location: Remote Daily Rate: $1,100 per training day Duration: 2 days Number of Participants: 5 Course Scope The training covers the full FARM stack development workflow, from environment setup and backend API development to React frontend implementation, MongoDB integration, application testing, deployment, and basic security practices. Course Outline - https://www.nobleprog.com/cc/farmstack NobleProg SOP - https://share.synthesia.io/a0788c6e-56d5-4da8-92c6-0d5c03ad6d52 Key Topics Include * FARM stack overview and comparison with MERN * FastAPI, React, and MongoDB development environment setup * MongoDB Atlas setup and database connection * Building REST APIs with FastAPI * CRUD operations and MongoDB functions * API testing and troubleshooting * Creating React projects and frontend components * Using axios, bootstrap, CSS, and JSX * Adding interactive frontend functionality * Testing full stack applications * Backend and frontend deployment * Authentication, user management, routers, and access permissions Trainer Responsibilities * Deliver engaging, instructor-led FARM full stack development training * Provide practical examples and hands-on lab exercises * Explain backend, frontend, and database concepts clearly * Support participants in building and testing full stack applications * Customize the course based on participant background and client needs * Prepare training materials and hands-on exercises (trainer remains the ownership of training content) Required Qualifications * Strong hands-on experience with FastAPI and Python backend development * Strong experience with React frontend development * Experience working with MongoDB and MongoDB Atlas * Experience building, testing, and deploying full stack web applications * Prior experience delivering technical or corporate training Nice to Have * Experience with FARM, MERN, or similar full stack development frameworks preferred * Experience with authentication and user management implementation preferred * Experience deploying applications using Heroku, GitHub, or similar platforms preferred How to Apply Please include * A brief overview of your FARM or full stack development experience * Your experience with FastAPI, React, and MongoDB * Your experience delivering instructor-led or corporate technical training * Confirmation of remote and/or onsite availability in the USA * Any relevant examples of full stack development training delivered

𝗔𝗯𝗼𝘂𝘁 𝘁𝗵𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁: I'm building a modern SaaS workspace and ticket management platform focused on providing a clean, intuitive alternative to traditional ticketing software. The product definition is substantially complete. A comprehensive Product Requirements Document (PRD) and detailed Figma designs have already been prepared, allowing development to begin from a well-defined product foundation. Version 1 will initially be developed as a Shopify app. The architecture should be designed with modularity in mind so the platform can later evolve into a standalone web application with maximum code reuse. 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂'𝗹𝗹 𝗗𝗼: The first milestone will focus on planning—not coding. You'll review the PRD and Figma designs, then propose: ★ System architecture ★ Database design (ERD) ★ Recommended technology stack ★ Infrastructure approach ★ Project milestones ★ Development timeline and estimates Once these proposals are reviewed and approved, development will proceed through fixed-price milestones. 𝗪𝗵𝗮𝘁 𝗜'𝗺 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗙𝗼𝗿: ★ Senior full-stack engineering experience building SaaS applications ★ Experience architecting applications from the ground up ★ Strong backend and database design experience ★ Experience designing scalable systems ★ Excellent communication and planning skills ★ Shopify app experience is preferred but not required 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗗𝗲𝘁𝗮𝗶𝗹𝘀: ★ Product Requirements Document provided ★ Detailed Figma designs provided ★ Fixed-price milestone project ★ Long-term opportunity for the right person ★ Code will be committed to a GitHub repository owned by the client I'm looking for someone who enjoys solving complex technical problems, communicates clearly, and takes pride in building scalable, maintainable software.

one qudio talk a live audio talk application where talk volume is set based upon content of conversation, thus if your talking about cats other users talking about cats will be heard loudest where everyone is on same audio channel this seperates content into what is most audible by result users per their content can talk clearly to others based upon their own content all other talk is at a lower volume where can be accessed based upon you varying your conversation to that topic thus the volume is then then higher on that content with your previous content on a medium volume users can easily have multiple conversations and enjoy talking to many people i would also like to have a reactive to audio motion graphic for the website that is the total extent of the UI similar to this shown where each user has a unique channel in the circle

Job Description Project Overview We have a fully code-complete Micro-SaaS platform called BounceBack SMS. The app is an automated missed-call text-back and lead recovery system built using Next.js 15, Tailwind CSS, Twilio API, and Supabase. The repository is isolated, structured, and securely hosted in a private GitHub repository. We are looking for an experienced Full-Stack/DevOps Engineer to handle the production deployment, configure live API pipelines, manage database environment mapping, and ensure the entire setup runs on a frictionless, automated continuous integration/continuous deployment (CI/CD) framework. Scope of Work (Key Deliverables) 1. Infrastructure Mapping & Production Deployment Deploy the Next.js 15 frontend/backend application from our private GitHub repository to production hosting (Vercel/Render). Map and connect production environment variables, database schemas, and connection strings to our live database instance (Supabase/PostgreSQL). Configure a permanent automated CI/CD pipeline (e.g., GitHub Actions or Vercel integration) ensuring any future push to the ⁠main⁠ branch automatically rebuilds and deploys the app flawlessly. 2. Twilio API & A2P 10DLC Compliance Configuration Connect and secure our live Twilio API gateways within the backend architecture. Audit and verify that our messaging endpoints cleanly support incoming webhooks for missed-call detection. Crucial Milestone: Assist and audit our US A2P 10DLC Campaign Registration via Twilio to ensure 100% carrier delivery compliance (Privacy Policy and Terms pages are already live and coded in the repo). 3. Live Stripe Billing Integration Transition our checkout environment variables from Stripe Sandbox/Test Mode into Live Production Mode. Wire up our exact pricing architecture: $0 Setup Fee, 100 Free Leads Usage Trial, transitioning into a flat $19.99/Month Recurring Subscription. Ensure Stripe webhooks are completely listening to successfully provision, pause, or update customer account access tiers inside our database based on subscription state. 4. Handover & Bulletproof Documentation Provide a brief, plaintext ⁠.txt⁠ or ⁠.md⁠ technical handover file outlining the deployed environment structure, a list of active API webhooks, and step-by-step instructions for simple environment variable updates. Required Tech Stack Expertise Frameworks: Next.js 15 (App Router), React, Tailwind CSS Database: Supabase / PostgreSQL (Schema sync, migrations, security policies) APIs: Twilio SMS Gateway (Webhook architecture, A2P 10DLC registration compliance) Payment Rail: Stripe Billing API (Usage-based trials, recurring webhooks) DevOps/Version Control: Git, Private GitHub Repositories, Vercel/Render, CI/CD automation Preferred Qualifications Proven track record deploying independent Micro-SaaS or automation applications. Deep familiarity with strict US telecom carrier A2P SMS delivery guidelines to prevent messaging blocking or spam flags. Obsession with clean environment variable separation—absolutely no hardcoded credentials. Excellent technical communication skills and availability to run live end-to-end integration testing before final milestone sign-off. 🎯 Candidate Screening Questions (Include on Upwork) 1. Briefly describe your experience configuring Twilio webhooks and handling the US A2P 10DLC registration process to ensure high carrier delivery rates. 2. How would you configure Stripe to trigger a recurring $19.99/mo flat-rate subscription specifically after a user consumes exactly 100 free database actions/leads? 3. Confirm that you are comfortable working out of a private GitHub repository and setting up an automated CI/CD pipeline so I never have to manually pay for developer redeployments.