Senior Backend / Full Stack Developer (Node.js + AWS) needed for high-traffic digital product platform

@infowider11

⭐️⭐️⭐️ High-Load PWA (Stripe + Streaming + Secure Delivery) ⭐️⭐️⭐️ Hello, How are you? I checked Jd and you need a high-performance PWA with async architecture, handling Stripe payments, code generation, secure media delivery, and scalability for 10k+ concurrent users—within a very tight MVP timeline. • Async webhook flow → queue → worker (code generation, access provisioning) • Token-based access + signed URLs for secure PDF/audio delivery • Streaming via S3 + CDN (scalable, low latency) • Raffle system tied to generated user codes • Fault-tolerant + retry mechanisms (no blocking flows) Let’s chat… Thanks

@diektech

Hi, This is Elias from Miami. I checked your project description and understand you’re looking to build a scalable web app that includes Stripe payment integration and other functionalities. I’ve worked on several similar platforms and understand the key technical challenges involved. I can integrate Node.js with AWS to ensure a robust backend while managing high traffic efficiently. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – What specific user roles do you want to implement in the app? – Q2 – Are there any existing systems that need to be integrated with this new platform? – Q3 – What is your preferred method for handling user authentication and notifications? Looking forward to hearing from you.

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand your project goal of building a scalable web app (PWA) with complex features like Stripe payment integration, audio streaming, and secure PDF delivery. My background in developing high-traffic systems, such as serving over 1 million users, directly applies to the challenges of your project, ensuring efficient scalability and security measures. Strategically, to ensure the scalability of your platform, I recommend utilizing asynchronous processing for webhooks and implementing a robust queue system like Redis or RabbitMQ. My past success in building and scaling Telegram Mini Apps for a large user base showcases my ability to handle high-complexity systems effectively. I encourage you to take action and discuss the roadmap further. Feel free to message me to delve deeper into how I can contribute to the success of your project.

@ludiac

Hi, This is exactly the kind of high-performance, async system I build regularly. I can deliver your MVP within 3–5 days using a scalable architecture designed for 10k+ concurrent users. Approach: • Backend: Node.js (NestJS preferred) + PostgreSQL • Payments: Stripe webhooks handled asynchronously (queue via Redis/SQS, no blocking) • Code generation: background workers for unique tokens + raffle logic • Access control: JWT + signed URLs for secure PDF/audio delivery • Media: S3-based streaming (pre-signed URLs, CDN-ready) • Infra: AWS (EC2/Lambda, S3) with clean deployment setup What you’ll get: • Fully async, queue-based architecture Secure premium access system Scalable streaming + content protection Clean, documented code + deployment guide I’ve built similar high-load + AI-driven platforms, so performance and reliability are a priority. Ready to start immediately and hit your timeline. Thanks.

@kishanbwts

I see you need a high-traffic web app with async Stripe webhook handling, secure media delivery, and token-based access. I’ve built similar platforms where quick code generation after purchase and secure streaming were key, using async queues (Redis/RabbitMQ) to handle spikes without blocking. To ensure no webhook delays, I suggest putting webhook events straight into a queue and processing them independently, so users won’t face timeout issues. For streaming audio and premium PDFs, signed URLs with time-limited access on S3 work well and keep content secure. I’m comfortable structuring PostgreSQL for user access and raffle code assignments to avoid bottlenecks at scale. Do you have a preferred queue system, or should I help pick one based on your current AWS setup? Also, have you planned how to cache user tokens on the client side for smooth PWA performance? I can start immediately and deliver the MVP with async webhook processing, user access, payments, and secure streaming within your 3–5 day window.

@SkillCrafts

I’ve spent the last five years architecting high-traffic Node.js backends on AWS, specifically focusing on the low-latency and 99.9% uptime your PWA demands. Having recently engineered a subscription-based digital marketplace that handled thousands of concurrent Stripe webhook events without a single dropped packet, I understand exactly how to secure your payment flows while maintaining absolute data integrity across your production database. My experience ensures your platform won’t just function; it will scale fluidly and securely as your user base grows from hundreds to hundreds of thousands of active users. To ensure maximum scalability and cost-efficiency, I will implement a containerized architecture using AWS ECS or Lambda, backed by SQS to buffer Stripe webhooks and prevent event loss during high-load periods. I plan to optimize your Node.js API with Redis caching and CloudFront distribution to minimize latency for your PWA users, while leveraging AWS Secrets Manager for hardened credential handling. My workflow includes setting up a robust CI/CD pipeline via GitHub Actions and AWS CodePipeline, ensuring every automated feature is rigorously tested and deployed without downtime. This approach prioritizes a "fail-safe" environment where your backend remains responsive and consistent even during intense traffic spikes. Regarding the automation requirements, are you looking for real-time event-driven triggers using AWS SNS and EventBridge, or do you require scheduled batch processing for your internal workflows? Additionally, have you already decided on a specific database like Aurora Serverless for its auto-scaling capabilities, or is the schema still open for architectural optimization? I’m available to hop on a quick chat or a brief call to dive deeper into these technical trade-offs and ensure we build a foundation that perfectly supports your product’s long-term roadmap.

@Hubready

Hello! This is James from Hollywood. I carefully read your project description and I’m excited about the opportunity to help build your scalable web app. With over 15 years of experience in full-stack development and a strong background in Node.js and AWS, I’m confident I can help you achieve your project goals, especially with Stripe integration and a robust backend. To clarify a few details: Could you please clarify the following questions to help me better understand the project? 1. What specific features do you envision for the auto functionality? 2. Are there any particular performance benchmarks or KPIs you'd like to meet? 3. How do you plan to manage the deployment and monitoring of the app? I’ve successfully completed similar projects, including a PWA for an e-commerce site that required complex payment processing and real-time user interactions. My background includes creating custom APIs and optimizing PostgreSQL databases for high traffic. I approach projects with a structured plan, focusing on clear communication and milestones. I’m here to deliver production-ready code that is both scalable and maintainable. Let’s connect and discuss your project further!

@softwarelinkerrs

At SoftwareLinkers, we pride ourselves on creating secure and scalable systems just like yours. I am a Full Stack Developer with deep expertise in Node.js, AngularJS, and AWS- all which are critical to the success of your project. I have a proven track record of creating high-traffic, data-driven applications, making me the ideal choice for your MVP within 3-5 days. One major strength I bring to the table is my experience in dealing with Stripe webhooks and building token-access based systems; two features which are key requirements for your web app. My understanding of Node.js combined with knowledge of PostgreSQL database design will guarantee frictionless processing and smooth scalability for audio streaming and unique code generation upon Stripe payment completion. This along with experience in using asynchronous architecture like mentioned using queues and Redis can ensure successful raffles and secure PDF deliveries. Most importantly, my approach for each project is to deeply understand the needs and goals of my clients, and build future-proof solutions aligned to that. I promise clear communication throughout the process along with on-time delivery and maintenance support. Your search for a seasoned team can end here, let's discuss in more detail how I can deliver exactly what you need for this dynamic project.