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1. Fractional Full-Stack "Vibe" Engineer Focus: Transforming [login to view URL] output into scalable, production-ready code. Role Overview We are looking for a senior-level Full-Stack Developer comfortable working in a high-velocity environment where initial UI and logic are generated via Lovable.dev. Your job is not just to "write" code, but to audit, refactor, and harden AI-generated code to support 14,000 users and 1.2k concurrent audio/video streams. Key Responsibilities • Code Hardening: Take Lovable-generated React/TypeScript code and refactor for performance, specifically focusing on memoization and efficient state management (Zustand/Context) for media playback. • Supabase Architecture: Implement and manage Row Level Security (RLS) to ensure strict multi-tenant isolation. • Database Optimization: Write and optimize complex Postgres queries, ensuring proper indexing for high-concurrency scenarios. • Media Integration: Lead the integration of audio/video streaming via Supabase Storage using Signed URLs and heartbeat mechanisms. Technical Requirements • Expertise: React, TypeScript, and Tailwind CSS. • Supabase Pro: Deep experience with Postgres, RLS, and Edge Functions. • AI-Native Workflow: High proficiency in Prompt Engineering—you must know how to guide AI to produce clean, modular code. • Performance: Experience in reducing "N+1" query issues and frontend re-rendering lag. 2. Fractional DevOps & CI/CD Engineer Focus: Building the "Safety Net" and global delivery pipeline on Netlify. Role Overview As our CI/CD lead, you will build the infrastructure that allows our "vibe coding" team to deploy rapidly without breaking the experience for our 14,000 users. You will be responsible for the "Quality of Service" (QoS) and the automated testing pipeline. Key Responsibilities • Netlify Infrastructure: Configure Netlify High-Performance Edge, Edge Functions for tenant-based routing, and advanced caching strategies (SWR). • Automated QA: Implement and maintain a comprehensive regression suite using [login to view URL] to protect core "Golden Paths" like login and playback. • Load Testing: Execute and report on K6 load tests to simulate 1,200+ concurrent users, identifying bottlenecks in the Supabase/Netlify handshake. • Deployment Pipeline: Establish a CI/CD workflow that uses Netlify Deploy Previews for staging and rapid QA cycles. Technical Requirements • Infrastructure: Netlify (Enterprise features preferred), including Edge Functions and Firewall/Rate-limiting. • Testing: Mastery of K6 (load) and [login to view URL] (e2e/regression). • Database Operations: Experience with Supavisor or similar connection pooling tools for high-concurrency Postgres environments. • Monitoring: Experience setting up Sentry or LogSnag for real-time error tracking in production
Projektin tunnus (ID): 40256639
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Aktiivinen 10 päivää sitten
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84 freelancerit tarjoavat keskimäärin $53 USD/tunti tätä projektia

Hello! I can harden your Lovable.dev-generated code into a scalable, production-grade platform while building the DevOps pipeline needed to safely support thousands of users and real-time media streams. Here’s how I’d approach it: • Refactor React and TypeScript output for performance using memoization and efficient Zustand or Context patterns • Eliminate re-render bottlenecks and N+1 query issues across frontend and Supabase • Implement strict multi-tenant isolation with Postgres Row Level Security and optimized indexing • Harden Supabase Edge Functions and query flows for high concurrency • Build signed-URL streaming with heartbeat reliability for audio and video delivery • Configure Netlify Edge routing, caching strategies, and rate limiting • Set up CI/CD with deploy previews, automated regression testing, and fast QA loops • Run K6 load testing to surface and fix scaling bottlenecks • Add production monitoring with Sentry or LogSnag Deliverables: • Hardened full-stack codebase ready for scale • Optimized Supabase schema, RLS, and query performance • Reliable media streaming architecture • Automated CI/CD and QA pipeline • Load testing reports and performance tuning I specialize in turning AI-generated builds into stable, high-concurrency SaaS systems without slowing delivery speed. If you’d like, I can outline a first sprint hardening plan and scalability targets immediately. Best regards, Jasmin
$50 USD 40 päivässä
7,4
7,4

Hi Your setup requires someone comfortable operating at the intersection of AI generated code, real world scale, and production discipline. I have worked with React and TypeScript applications where initial scaffolding was AI assisted, then refactored for performance, maintainability, and multi tenant isolation. On the application side, I would audit Lovable generated output for unnecessary re renders, unstable references, and inefficient state propagation. I focus heavily on memoization strategy, selector based Zustand patterns, and eliminating N plus 1 query patterns from Supabase calls. For RLS, I design explicit tenant scoping policies with verified JWT claims and test isolation under load. For streaming workloads, I would structure signed URL lifecycles with controlled refresh logic and implement heartbeat validation to avoid stale sessions. On the infrastructure side, I can configure Netlify Edge routing, caching strategies, CI with deploy previews, and run K6 simulations to validate concurrency targets before production rollout. Best, Justin
$50 USD 40 päivässä
6,4
6,4

⭐⭐⭐⭐⭐ We at CnELIndia, alongside Raman Ladhani, are well-positioned to ensure the success of your project. For the Fractional Full-Stack “Vibe” Engineer role, we can audit and refactor Lovable.dev-generated React/TypeScript code, implementing memoization, efficient Zustand/Context state management, and optimized Postgres queries with proper indexing for high-concurrency scenarios. We will secure Supabase with Row Level Security and Edge Functions, and integrate signed URL–based audio/video streaming with heartbeat monitoring. For the Fractional DevOps & CI/CD role, we will configure Netlify High-Performance Edge with tenant-aware routing, implement SWR caching, and establish automated QA via BugBug.io. K6 load tests will validate 1,200+ concurrent streams, while CI/CD pipelines with Netlify Deploy Previews, Supavisor pooling, and Sentry/LogSnag monitoring ensure scalable, robust delivery for 14,000 users.
$50 USD 40 päivässä
6,5
6,5

Hello! I’m excited about the opportunity to collaborate on your Lovable/Supabase code refinement and performance enhancement project. You’re looking for a senior-level full-stack developer who can refactor Lovable.dev-generated React/TypeScript code for scalability and optimization, implement Supabase Row Level Security, and optimize database queries for a high-concurrency environment. Additionally, you need a fractional DevOps engineer to build a robust CI/CD pipeline on Netlify with load testing, automated QA, and performance monitoring. With extensive experience in React, TypeScript, Tailwind CSS, and deep expertise in Supabase, Postgres, RLS, and Netlify infrastructure, I am confident in delivering production-ready, scalable solutions. I have hands-on experience optimizing frontend performance through memoization and state management techniques such as Zustand and Context, as well as building secure Supabase architectures tailored for multi-tenant usage. I am also skilled in establishing advanced CI/CD workflows, configuring load testing with K6, and setting up real-time error monitoring with tools like Sentry. I understand the importance of rapid, high-quality deployments in a fast-paced environment, ensuring your 14,000 users enjoy a seamless experience. Let’s discuss how I can help transform your AI-generated code into a hardened, maintainable platform. Looking forward to your response!
$50 USD 14 päivässä
5,9
5,9

Hi there To scale Lovable-generated code to 14,000 users and 1,200 concurrent streams, the most critical part is eliminating hidden performance debt before traffic hits production. AI-generated React often introduces unnecessary renders, unscoped effects, and inefficient state propagation that collapse under concurrency. I’ll approach this in two tracks: First, refactor the React/TypeScript layer with strict memoization patterns, selector-based Zustand usage, and elimination of N+1 data fetches. Supabase queries will be profiled, indexed properly, and guarded by hardened RLS policies with tenant-safe isolation. Second, optimize infrastructure on Netlify with Edge Functions for tenant routing, aggressive caching (SWR), connection pooling (Supavisor), and K6-based load testing to simulate 1.2k concurrent playback sessions. Monitoring via Sentry will provide real-time visibility. The focus is not just speed - but predictable performance under stress. Once I review your current codebase and Supabase schema, I’ll provide a precise hardening roadmap. If this aligns, let’s discuss in detail via private chat.
$50 USD 40 päivässä
6,1
6,1

With years of experience under my belt in backend development and cloud computing, I provide a unique set of skills that aligns perfectly with what your project requires. I am fluent in API design, backend engineering, and have expertise in managing scalable distributed systems. Database optimization and complex query management are my strong suits as well. I've worked extensively with Postgres, creating solutions to overcome high-concurrency scenarios like the one you're dealing with. My understanding of multitenancy and creating secure environments will ensure your project's success. Having worked on delivering high-performance systems while taking into account security measures like row level security - I am confident that I can implement and manage RLS effectively for your Supabase architecture. I understand the challenges of managing a stable product at scale, and know the crucial role that DevOps plays in ensuring a seamless development workflow. My skillset primarily encompasses developing CI/CD pipelines and setting up comprehensive automated QA suites to protect the "Golden Paths".
$50 USD 40 päivässä
6,0
6,0

Hello, I’m excited about the opportunity to contribute to your project. With senior-level experience in React/TypeScript hardening, Supabase (Postgres, RLS, Edge Functions), and high-concurrency tuning, I can refactor Lovable-generated code into production-grade architecture—eliminating N+1 patterns, tightening memoization/state isolation (Zustand), and optimizing media playback flows with signed URLs and heartbeat validation. On the DevOps side, I can architect a resilient Netlify pipeline with Edge Functions for tenant routing, SWR caching, K6 load simulations (1.2k+ concurrency), BugBug regression protection, Supavisor-aware pooling, and Sentry-backed observability to maintain QoS at scale. You can expect an AI-native workflow that preserves velocity while enforcing structural rigor, strict multi-tenant RLS, and a CI/CD safety net that enables rapid iteration without compromising reliability. Best regards, Juan
$50 USD 40 päivässä
5,7
5,7

Hi there, I'd love the opportunity to connect and discuss your project in detail—feel free to reach out via chat anytime. I'm a full-stack developer with strong experience in building both web and desktop applications. I’m confident I can manage and deliver your project efficiently and on time. I have hands-on experience in DevOps, giving me a broader perspective on project deployment and scalability. We are using cursor for development of the projects, but supervision is necessary which I provide for the code review. This makes me confident for this project to handle professionaly. My technical expertise includes: MERN / MEAN Stack: Extensive hands-on and team leadership experience, ensuring smooth front-end to back-end integration. .NET Core & Angular: Implemented various data visualizations using D3.js, integrated complex APIs, and developed dynamic, responsive applications. Azure Logic Apps & SharePoint: Built multiple workflow automation solutions; also familiar with PowerApps development. I bring a full-lifecycle development mindset and enjoy solving real-world business challenges through code. Looking forward to hearing from you! Thanks!
$50 USD 40 päivässä
4,5
4,5

i can help you. AI-generated code often ignores the React reconciliation lifecycle, which will cause UI stuttering when handling 1.2k concurrent media heartbeats. I’ll refactor the Lovable output to isolate playback state from the global store and implement strict memoization to prevent unnecessary re-renders. The hidden risk in your stack is connection exhaustion; 1,200 concurrent streams hitting the database for heartbeats will likely overwhelm Postgres, even with Supavisor. I will implement a debounced write-behind strategy for heartbeats and optimize RLS policies into database functions to reduce the overhead of policy evaluation at scale. I’ll also leverage Netlify Edge Functions for signed URL generation to keep that compute off the main database and closer to the user.
$50 USD 40 päivässä
4,2
4,2

Hi there, I’m Kristopher Kramer from McKinney, Texas. I’ve worked on similar projects before, and with over 15 years of experience as a senior full-stack and AI engineer, I have the expertise to deliver this properly. I’m available to start right away and would be happy to discuss the details whenever it’s convenient for you. I look forward to speaking with you. Best regards, Kristopher Kramer
$50 USD 40 päivässä
4,7
4,7

As a Ph.D. in Computer Science specializing in AI-powered solutions, I deliver scalable full-stack apps handling high traffic and concurrent audio/video streams. With expertise in React, TypeScript, Tailwind, Supabase, and Netlify, I build clean, modular, high-performance systems optimized for frontend efficiency and robust CI/CD workflows. Many Thanks, A Iqbal
$61 USD 40 päivässä
4,2
4,2

I have shipped Supabase + React apps at this scale, including RLS hardening, query tuning, and stream-heavy dashboards. Your multi-tenant + 1.2k concurrent stream requirement is exactly where bad AI output breaks, I can clean that up fast. I will refactor the Lovable codebase for stable state handling, remove N+1 queries, and lock tenant isolation properly. I can also set up Netlify edge routing + CI checks so releases stop breaking production. Can start right away and share a clear 30-day execution plan from day 1, no fluff. - Usama
$62 USD 40 päivässä
3,6
3,6

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Cloud Computing, Software Development, Web Development, API, Backend Development, DevOps, Database Management, Software Engineering, Netlify, CI/CD and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$50 USD 5 päivässä
6,4
6,4

Hi, I came across your project "Lovable/Supabase code refining x performance -- 2" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in API, Backend Development, Software Development, Web Development. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak
$50 USD 40 päivässä
0,0
0,0

Hello, I would like to grab this opportunity and will work till you get 100% satisfied with my work. I'm a 10+ years of experienced full stack AI developer on Cloud Computing, Software Development, Web Development, API, Backend Development, DevOps, Database Management, Software Engineering, Netlify, CI/CD Lets connect in chat so that We discuss further. Thank You
$50 USD 40 päivässä
0,0
0,0

I would suggest starting with a lightweight, vibe coded clickable UI model alongside your discovery, architecture phase. You internally can test it using real scenarios to validate workflows and catch edge cases early, before major decisions are locked in I have a strong track record of taking AI generated code and turning it into robust, scalable solutions, especially for media rich applications. I understand the need to: Harden AI generated React/TS code for 14,000 users and high concurrency. Implement secure Supabase architecture with RLS for multi tenant isolation. Build a reliable CI/CD pipeline on Netlify. Here's how I'll approach this: 1. Understand: We'll thoroughly discuss your requirements and current pain points. 2. Plan: Develop a detailed plan, including architecture, testing, and deployment strategies. 3. Develop & Test: Refactor, optimize, and rigorously test the code, focusing on performance and stability. 4. Deploy & Support: Implement a smooth CI/CD pipeline and provide ongoing support. Could we connect on Freelancer chat to discuss your tech needs & project vision? I am happy to share my portfolio for you them. Vaibhav
$50 USD 40 päivässä
0,0
0,0

This project needs real production level thinking, not just feature coding. Supporting 14000 users and high concurrent media streams requires clean architecture, strict database control and strong DevOps discipline. I can help you harden the platform and make it stable at scale. I am a senior full stack developer with strong experience in React, TypeScript and Supabase. I have worked on performance optimisation, RLS implementation, query tuning and reducing unnecessary re renders in large applications. I understand how to refactor AI generated code into modular and scalable structure. On the infrastructure side, I have experience with CI CD pipelines, deployment workflows and load testing for high traffic platforms. I focus on stability, monitoring and structured rollout instead of quick patches. My rate is 60 USD per hour. I can work in a fractional model with weekly sprint planning. One question, is your current Supabase setup already using proper indexing and connection pooling, or does that need to be redesigned from scratch? Regards Verma
$50 USD 40 päivässä
0,0
0,0

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