
Completed
Posted
Paid on delivery
I have an existing AI Voice Agent prototype built with Claude, n8n AI automation, LangChain, and LangGraph. I need an experienced AI developer to review my existing video-coded project, fix the current issues, complete the missing parts, and turn it into a working real product. Task -Review and understand the existing project - Fix current bugs/issues - Complete unfinished functionality - Improve the AI agent/workflows - Integrate everything properly - Make the system stable and production-ready I also need the developer to act as an AI Consultant / Strategic Integrator — not just follow my existing code. You should be able to recommend better architecture, integrations, and approaches when needed. Must Have - Claude / Anthropic - LangChain / LangGraph - n8n - AI agents / LLM workflows - Voice AI experience - Strong debugging and integration skills Please apply only if you can take an existing AI prototype and turn it into a functioning product. If you have relevant experience, please share examples of similar AI/voice-agent projects you have built.
Project ID: 40668207
66 proposals
Remote project
Active 1 day ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs

Your prototype already has the right building blocks - Claude, LangGraph/LangChain, and n8n - but the real challenge is turning video-coded workflows into a stable voice product that behaves reliably in production. I can help audit the existing system end-to-end, identify where the current agent/workflow breaks down, and finish the missing pieces rather than simply patching symptoms. For this type of system, I’d focus on: * Debugging agent state, tool calls, workflow handoffs, and failure/retry paths * Improving voice-agent reliability, response latency, and conversation flow * Reviewing the LangGraph architecture and n8n integrations for unnecessary complexity or fragile dependencies * Testing edge cases and making the system observable and maintainable I also approach this as an integration/architecture problem, not just a coding task. If the current design is creating reliability or scalability issues, I’ll recommend a better approach before adding more layers. Please share the existing project/repository and a brief description of the current issues. I can first review the architecture and identify the highest-impact fixes before we move into implementation.
$10 USD in 2 days
0.0
0.0
66 freelancers are bidding on average $28 USD for this job

With extensive experience in AI development and a background in working with Claude, LangChain, and n8n, I am well-equipped to tackle your existing AI Voice Agent prototype. I understand the importance of not just fixing issues but also improving agent workflows and system stability. Could you provide more details on the specific functionalities that need enhancement to ensure a seamless integration process? Regards, Yogesh Kumar
$10 USD in 7 days
8.5
8.5

Hello, I’ve carefully reviewed your project and understand that you are not looking for someone to simply continue coding an existing prototype. You need an experienced AI developer who can understand the current architecture, identify what is wrong, complete the missing functionality, and make informed technical decisions to turn the prototype into a reliable product. I can help with: Debugging existing AI agent workflows Completing unfinished agent functionality Claude/Anthropic API integration LangChain/LangGraph workflow improvements n8n automation and webhook integration Voice input/output workflows Tool/function calling Context and conversation management Agent orchestration API integrations Error handling and fallback logic Logging and monitoring I’m available to start with the existing prototype review and can begin by identifying the highest-priority issues and the shortest path to a production-ready implementation. I can provide relevant examples of AI agent, automation and voice-AI work from my portfolio/chat where appropriate. If you share the current project/codebase and a short description of the main issues you're experiencing, I can start with a technical assessment. Best regards, RAHEEL
$20 USD in 7 days
8.2
8.2

Hello, I’m interested in taking your existing AI Voice Agent prototype and turning it into a stable, production-ready product. I understand that you’re not simply looking for someone to patch individual bugs. You need a developer who can review the existing architecture, identify weaknesses, complete unfinished workflows, and recommend better technical approaches where necessary. How I Would Approach the Project Review the existing Claude/Anthropic, n8n, LangChain, and LangGraph implementation. Understand the current agent architecture, prompts, workflows, integrations, and data flow. Identify and fix existing bugs and reliability issues. Complete unfinished functionality and missing integrations. Improve agent orchestration, state management, tool calling, and workflow logic where appropriate. I can also act as a technical consultant rather than blindly following the existing implementation. If I see a better architecture, integration, workflow, or technology choice, I’ll explain the reasoning and recommend the most practical solution. I’m comfortable working with Claude/Anthropic, LangChain, LangGraph, n8n, LLM workflows, AI agents, APIs, automation, and voice-agent integrations, and I enjoy debugging complex systems where multiple services need to work together reliably. I’d be happy to first review the existing project and provide a concise assessment of the current architecture, outstanding issues, and recommended path to production. Thank you. Best regards ADEEL
$20 USD in 7 days
8.2
8.2

Hello, I checked your "AI Voice Agent Developer / AI Consultant & Strategic Integrator" project description, it looks like the focus is on delivering a clean, responsive website that works well across all devices. I prefer understanding the expected layout and user experience first, then building pages that closely match the design while keeping the code organized and easy to maintain. Feel free to share the design or current website, and I'll suggest the best implementation along with a realistic timeline. Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$12 USD in 1 day
7.5
7.5

Hi, I see you're looking for someone to take your AI Voice Agent prototype and turn it into a fully functioning product. It sounds like you need a thorough review of the existing code, debugging of current issues, and completion of any unfinished features. I can help with that, as I've spent 10+ years working with AI technologies, including Claude, LangChain, and n8n. My approach would involve diving deep into your current setup to identify and fix any bugs, while also enhancing the workflows and ensuring everything is well-integrated for stability. Additionally, I can provide strategic insights to improve the overall architecture and functionality of your project, rather than just working with what's already there. You can check out my past work at https://www.freelancer.in/u/KayaCreation. What specific improvements or functionalities do you feel are most crucial for your AI Voice Agent to succeed? Best regards, Kaya Creations
$30 USD in 2 days
7.7
7.7

I can take your existing AI Voice Agent from prototype to a stable, working product without rebuilding everything unnecessarily. I’ll first audit the current Claude, n8n, LangChain, and LangGraph implementation to understand the architecture and identify what’s broken or incomplete. Then I’ll fix the existing issues, finish the missing workflows, improve agent logic, and properly connect the components. My approach: * Audit the existing code and architecture * Diagnose and fix bugs systematically * Complete unfinished agent/workflow functionality * Refine LangChain/LangGraph orchestration * Optimize n8n AI automation * Improve reliability, error handling, and edge cases * Test the complete voice-agent flow end-to-end * Prepare the system for real-world production use I’ll work with your existing prototype first and preserve what’s already working instead of unnecessarily replacing it. Send me the project/repository and a short list of the current issues—I can review the architecture and start with the highest-impact fixes.
$150 USD in 5 days
7.1
7.1

Hi there, I design logos and brand assets. For "AI Voice Agent Developer / AI Consultant & Strategic Integrator" I will send initial concepts first, then refine the one you pick and hand over source files plus PNG, SVG and PDF. Delivery in 4 days for 11 USD. Can you share any extra details or files so I can confirm the scope? I can start today. Best regards
$11 USD in 4 days
6.8
6.8

Hey there! I am ready to help you with AI Voice Agent Developer / AI Consultant & Strategic Integrator, as per your requirements. I’m a Lead Graphic Designer with solid experience in PHP, Website Design, Graphic Design, Logo Design, AI Chatbot Development, AI Model Development, AI Development, AI Agent Swarms, AI Voice Agents, AI Integration. Review my Profile for review and portfolio: • https://www.freelancer.com/u/Kiranshaikh2388 I’d love to discuss more about your project, Lets hop up for quick discussion? Best, Kiran Shaikh
$25 USD in 2 days
6.4
6.4

Hello, I can review your existing Claude, n8n, LangChain, and LangGraph voice agent, identify the current issues, complete the unfinished workflows, and turn the prototype into a stable product. I’ll first audit the architecture and integrations, then fix bugs, improve the agent workflows, and recommend practical changes where the existing approach can be made more reliable or scalable. I’ll also test the complete flow before handover. I can start immediately and work as a hands-on AI developer and strategic integrator throughout the project. Best Regards, Fizza
$10 USD in 2 days
6.2
6.2

Hello, I'm Denis, a developer who has worked on AI systems involving conversational agents and workflow automation. I understand you have a voice agent prototype built with Claude, n8n, LangChain, and LangGraph that needs to be reviewed, debugged, and expanded into a stable product. My focus would be on identifying the core issues in the current implementation—whether they're in the agent logic, workflow orchestration, or integration points—and resolving them while suggesting improvements where the architecture can be strengthened. I'd approach this by first analyzing the existing codebase to understand how the components interact, then prioritize fixing the most critical issues before moving to complete the missing functionality. The key is to ensure the voice interactions remain reliable and the workflows handle edge cases gracefully. For the strategic side, I'd recommend adjustments to the agent structure or integrations only where they directly impact stability or scalability. The main risks here are unclear error handling paths or dependencies that weren't accounted for in the prototype. These would be addressed by adding proper logging, fallback mechanisms, and testing the most common failure points before any larger refactoring. I can start working right away. Let's connect and discuss the details. Thanks, Denis.
$10 USD in 1 day
6.3
6.3

As an AI Voice Agent Developer and Consultant, YOU NEED ME. My name is Arbeena and my mission is to transform existing AI prototypes into successful real products. With my strong debugging and integration skills, I am confident in my ability to meticulously assess your current project in order to fix bugs, complete unfinished functionalities, improve AI agent/workflows, and integrate everything properly for smooth operation. But my proficiency doesn't stop there: I am also familiar with various key aspects of your project such as Claude, LangChain, n8n, LMI workflows and more. This past experience empowers me with the capability to not only follow established codes but also make informed recommendations for better architecture, integrations, and approaches when necessary. My web development skillset includes a profound grasp of technologies like React, Vue.js, Laravel - which will come in handy for enhancing your frontend interfaces while maintaining back-end security. This combined with my experiences in branding & identity design showcases my ability to create visually stunning and functional websites - a trait that bodes well for making your system stable and production-ready. Let's work together to turn your vision into reality
$20 USD in 7 days
5.2
5.2

Hi, I can review, debug, and complete your existing AI Voice Agent using Claude, LangChain, LangGraph, and n8n, turning the prototype into a stable production-ready product. I can also improve the architecture, workflows, integrations, and agent logic where needed rather than simply following the existing code. Best regards, Shakila Naz
$20 USD in 2 days
5.5
5.5

Hello, The first thing I'd check is how the LangGraph state management connects to the n8n automation layer. Voice agents often break when context isn't properly passed between the agent's reasoning graph and the external tool chains. I've seen systems where a missing state key or timeout in the retrieval layer causes the agent to stall mid-conversation. Recently I worked on a production-grade voice agent platform where we rebuilt the LangGraph states to be idempotent and added explicit error handling for n8n retries. We also replaced some LangChain chains with direct Anthropic API calls to reduce latency spikes. The system had to handle real-time audio streams and API fallbacks when Claude's response times exceeded 8 seconds. I'd start by auditing the current state transitions and n8n workflow triggers. Then I'd refactor any brittle LangChain chains into LangGraph nodes with proper error recovery. The integration layer between the voice gateway and n8n needs explicit health checks and circuit breakers—otherwise you'll get silent failures during peak load. The audio processing part usually needs a separate service to avoid blocking the main agent loop. The biggest unknown is whether the existing prototype has proper observability hooks. Without logging the state changes and n8n execution traces, debugging production issues will be painful. Thanks, Lazar.
$10 USD in 1 day
4.7
4.7

Hi, can you share the current prototype and a short recording of the intended voice-agent flow so I can identify whether the main gaps are in the LangGraph state design, Claude orchestration, n8n integrations, or voice infrastructure before proposing changes? I can audit the existing code, reproduce and fix bugs, complete unfinished workflows, and refactor the architecture into a reliable production system rather than patching symptoms. I have hands-on experience with Claude/Anthropic, LangChain, LangGraph, n8n, AI agents, API integrations, tool calling, and voice-AI workflows, including debugging multi-step agent pipelines and improving reliability. I’ll also act as a strategic integrator, recommending better models, workflow boundaries, integrations, observability, and deployment architecture where appropriate. I am available for a quick call to discuss the project further and can also share similar projects I have worked on in the chat. Thanks, Ruchi.
$20 USD in 7 days
4.5
4.5

As an accomplished AI developer and strategic integrator, I am well-equipped to transform your existing AI Voice Agent prototype into a robust, stable, and production-ready product. Throughout my 6+ years in the field, I have successfully built AI agents, automation systems, and full-stack platforms that have thrived in various industries. My experience working with popular tools like Claude, LangChain, n8n, LangGraph among others aligns perfectly with your project requirements. What sets me apart is not only my ability to review and fix technical challenges but my knack for enhancing workflows by offering valuable recommendations on architecture and strategy. You need someone who doesn't just follow code but thinks holistically about the project's objectives. That's me: an AI Consultant who has the skills to spot inefficiencies and propose solutions that increase performance and scalability. In reviewing your proprietary AI video-coded project, I'll leverage my debugging proficiency alongside my strong integration and articulation skills to ensure every element of your system is properly aligned for smooth operation. Extensive automation work and highly automated systems development are what I deliver best.
$15 USD in 3 days
4.8
4.8

Building AI automation and voice agent systems for the past 3 years, I can review your existing prototype, fix the issues, complete the missing functionality, and make it production ready. I have experience with n8n, AI agents, Claude, LangChain,APIs, and voice AI integrations. I can also suggest better architecture where needed and share relevant project examples. I focus on turning prototypes into stable, working systems rather than just fixing individual issues.
$30 USD in 7 days
4.6
4.6

Hello, I reviewed your project for AI Voice Agent Developer / AI Consultant & Strategic Integrator and I’d be glad to work on it. Your requirements are clear, and I have a good understanding of the result you’re looking for. I have experience with similar projects and can deliver the work with attention to detail, reliable communication, and a professional approach. You can also review my profile and portfolio: https://www.freelancer.com/get/muhammada742 I’d be happy to discuss the details with you and get started. Best Regards, Muhammad Abdul Samee
$50 USD in 1 day
4.2
4.2

Hi there! I understand you already have an AI Voice Agent prototype, but the current issues and unfinished parts are stopping it from becoming a stable product. The main need is someone who can understand the existing architecture, debug it properly, and improve it where the current approach is not ideal. I have experience with Claude, Anthropic APIs, n8n, LangChain, LangGraph, AI agents, LLM workflows, and AI integrations. I can work with existing prototypes, trace integration issues, and connect the different components into a reliable end-to-end workflow. I will first review the existing code and workflows to understand how the voice agent currently works. Then I will fix the bugs, complete missing functionality, improve the agent logic, and verify all integrations. I will also suggest better architecture or tools where they can improve stability, performance, or maintainability. My focus will be on turning the current prototype into a properly tested and usable product rather than simply patching individual errors. check our work https://www.freelancer.com/u/ayesha86664 Can you share the existing prototype and current issues so I can review the architecture before starting? Let me know if you’re interested & we can discuss it. Best Regards Ayesha
$20 USD in 2 days
4.3
4.3

Hi, I can take your existing Claude, LangChain, LangGraph, and n8n-based voice agent prototype, thoroughly review the codebase, identify the current issues, and turn it into a stable, production-ready product. I’ll not only fix bugs and complete unfinished functionality but also evaluate the architecture and recommend better integrations or workflows where they can improve reliability and scalability. I have experience working with AI agents, LLM workflows, API integrations, automation, and voice-based systems, with a strong focus on debugging and end-to-end integration. I’d be happy to review your current prototype first, outline the required fixes and improvements, and then take it through to a properly functioning product.
$20 USD in 4 days
4.0
4.0

Hello, I checked your project "AI Voice Agent Developer / AI Consultant & Strategic Integrator" and already have a clear understanding of your requirements and how to deliver them efficiently. I have solid experience in PHP, Website Design, and I've successfully completed similar projects by delivering high-quality, scalable, and reliable solutions. Why choose me? * Strong expertise in PHP, Website Design * Clean, optimized, and scalable implementation * Fast communication and regular progress updates * Focused on delivering results, not just completing the task I'm ready to start immediately and would be happy to discuss the details. Best regards, Umer
$25 USD in 1 day
4.0
4.0

Orani, Philippines
Payment method verified
Member since Jun 4, 2025
$10-250 USD
$250-750 USD
₹2500-5000 INR / hour
$10-30 USD
₹12500-37500 INR
₹600-1500 INR
min $50 USD / hour
₹12500-37500 INR
₹37500-75000 INR
$750-1500 USD
$30-250 USD
₹1500-12500 INR
₹600-800 INR
₹75000-150000 INR
$1000-10000 USD
₹12500-37500 INR
$2-8 USD / hour
€300-400 EUR
$250-750 USD
$30-250 USD