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Senior Full-Stack Developer (React/Node.js) - Base44 & AI Specialist Job Description: We are seeking a high-level Full-Stack Developer to resolve a series of Critical and High Priority bugs within our business management platform, CompanySync. Our application is built and hosted on the Base44 platform. You will be working directly within the Base44 editor to debug React components, Node.js serverless functions, and complex AI integrations. Critical Priorities: Fix AI Voice Interruption (BUG-001): Resolve issues with Gemini Live Voice where interruption and Voice Activity Detection (VAD) are failing. Twilio Inbound/Outbound (BUG-013/014): Fix TwiML handlers for inbound AI voice calls and SMS responses for our virtual assistants. Google Calendar Two-Way Sync (BUG-003): Troubleshoot and resolve domain verification and webhook watch channel issues in the Google Cloud Console. Data Deduplication (BUG-004/005): Fix race conditions creating duplicate company records and backfill missing multi-tenant company_id tags. Required Skills: Base44 Proficiency: Experience working within the Base44 ecosystem is a massive plus. Frontend/Backend: Expert-level React.js and Node.js. AI/Voice Integration: Deep understanding of WebSockets, Twilio Programmable Voice, and Google Gemini API. Third-Party APIs: High proficiency with Google Calendar API (OAuth2 and Webhooks). Project Scope: This is an urgent "Bug Bash" engagement. We have a comprehensive System Audit Report detailing all 15 open issues. We are looking for a developer who can jump into the Base44 environment and start pushing fixes immediately.
N° de projet : 40217126
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132 freelances proposent en moyenne $210 USD pour ce travail

Hello, We understand that you're seeking an urgent Full-Stack Developer with AI expertise to address critical bugs in your CompanySync platform hosted on Base44. Our team at A2 Design possesses the necessary proficiency in React.js and Node.js, along with substantial experience in resolving complex AI and voice integration issues, including Twilio and Google Calendar API challenges. We have successfully managed projects similar to your needs, such as the MadPaws platform, which handled high user volumes and required seamless bookings. You can view it at madpaws.com.au. Additionally, our work on the TutorTime marketplace involved integrating advanced matching algorithms essential for real-time interactions, reflecting our capacity to handle dynamic data and syncing needs. Discover more at tutortimetutors.com. Let’s discuss how we can bring your vision to life. Reach out to explore the next steps!
$170 USD en 1 jour
6,1
6,1

Hi there, I understand the urgency of your project and the critical bugs that need immediate attention in your CompanySync platform. With my extensive experience as a Full-Stack Developer, particularly in React and Node.js, I am confident in my ability to resolve these issues effectively. Having worked within the Base44 environment, I’m well-prepared to tackle the problems you face. I have a strong track record in fixing AI integrations and troubleshooting issues similar to the ones you’ve listed. For instance, I can address the root causes behind the voice interruption problems and ensure that your Twilio handlers are functioning flawlessly. Moreover, I'm experienced with Google APIs, guaranteeing a swift and effective resolution of your Google Calendar synchronization issues. I am ready to dive into this bug bash and start delivering fixes right away, ideally within the next 10 days. Let’s get your platform back on track! Thanks,
$300 USD en 10 jours
6,2
6,2

Hello There!!! ⚜⭐⭐⭐⭐⚜(( RESOLVE CRITICAL BUGS AND STABILIZE BASE44 AI PLATFORM ))⚜⭐⭐⭐⭐⚜ Your need for an immediate bug bash inside the Base44 environment caught my attention. You are looking for a developer who can step directly into the editor, understand the existing architecture, and start fixing AI voice, Twilio, and Google Calendar issues without long onboarding. The main objective is to stabilize CompanySync so virtual assistants, scheduling, and multi tenant data work reliably for real customers. I have hands on experience debugging React interfaces, Node serverless functions, and third party integrations where timing and authentication are sensitive. My action plan would be 1. Reproduce Gemini Live Voice interruption and tune WebSocket and VAD handling 2. Correct TwiML flows for inbound calls and SMS with proper session context 3. Patch Google Calendar OAuth and webhook channels to restore two way sync I would begin with the System Audit Report and create a priority checklist so every fix can be tested safely inside Base44. Clear commit notes and regression checks will protect existing features. Let us connect so you can share access and I can start on the highest impact bugs today. Warm Regards, Farhin B.
$156 USD en 10 jours
6,4
6,4

Hello, I am a seasoned Full-Stack Developer with expertise in React, Node.js, and AI integrations. I have a solid track record of resolving critical bugs efficiently and effectively. I am well-versed in Base44, React, Node.js, Twilio, Google Calendar API, and AI/Voice integrations. My approach is methodical and detail-oriented, ensuring thorough debugging and resolution of issues. I am confident in my ability to address the urgent bug fixes required for your CompanySync platform hosted on Base44. With my skills and experience, I can dive into the Base44 environment promptly and start resolving the identified issues without delay. Please review my portfolio for relevant samples. I look forward to discussing how I can assist in bringing stability to your platform. Thank you for considering my proposal.
$200 USD en 3 jours
6,4
6,4

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam
$100 USD en 3 jours
5,5
5,5

Hi Virgil, I am a Senior Full-Stack Developer with expertise in React.js, Node.js, and AI integrations. I have experience working within the Base44 ecosystem and can efficiently resolve critical bugs in your CompanySync platform. Let's discuss further to address the urgent "Bug Bash" engagement. Regards, Sai Bhaskar
$210 USD en 5 jours
4,8
4,8

Hi there, I’m Ahmed from Eastvale, California — a Senior Full-Stack Engineer with over 15 years of experience building high-quality web and mobile applications. After reviewing your job posting, I’m confident that my background and skill set make me an excellent fit for your project — Urgent Full-Stack and AI Expert Developer (Base44) . I’ve successfully completed similar projects in the past, so you can expect reliable communication, clean and scalable code, and results delivered on time. I’m ready to get started right away and would love the opportunity to bring your vision to life. Looking forward to working with you. Best regards, Ahmed Hassan
$225 USD en 1 jour
4,9
4,9

Hello Virgil S., I am a seasoned Full-Stack Developer with expertise in React, Node.js, and AI integrations. I understand the critical bugs within CompanySync on Base44 and am well-versed in debugging React components, Node.js functions, and AI implementations. My portfolio showcases successful projects in backend and frontend development, Twilio integration, and AI development. I propose a methodical approach to resolving the AI voice interruption, Twilio handling, Google Calendar sync, and data deduplication issues. With clear communication and reliable delivery, I aim to swiftly address the urgent bug fixes outlined in your System Audit Report. I invite you to discuss how my skills and experience can bring swift resolutions to the critical priorities at hand. Best regards,
$200 USD en 7 jours
4,8
4,8

Hello, I’ve reviewed the critical items in your CompanySync audit and can jump into the Base44 editor to start resolving the highest-impact issues immediately. I will: (1) Reproduce and fix Gemini Live Voice VAD and interruption handling by tracing WebSocket flows and tuning VAD thresholds; (2) Repair TwiML handlers and inbound/outbound SMS logic, validating Twilio call/webhook flows and edge cases; (3) Resolve Google Calendar two-way sync by verifying domain ownership, repairing watch channel configs in Google Cloud, and refreshing OAuth tokens; (4) Eliminate race conditions causing duplicate company records by implementing transactional guards/locking and running a safe backfill to add missing multi-tenant company_id tags. How I’ll start: request Base44 editor access + staging URL, service credentials (Twilio, Google Cloud service account & OAuth client), and the System Audit Report. I’ll prioritize fixes in sprints, push tested patches in Base44, and run a targeted backfill script with pre/post checks. I can begin within 24 hours and aim to close the Critical/High items in the first sprint (5 days) with follow-up verification. Can you provide Base44 editor access, the System Audit Report, Twilio credentials (account SID, auth token, webhook URLs), and a Google Cloud service account with Calendar API permissions so I can reproduce and start fixes immediately? Best regards,
$225 USD en 1 jour
5,0
5,0

Hey, I'm a seasoned Full-Stack Developer with extensive experience in React and Node.js. I specialize in resolving critical bugs like AI Voice Interruption and Twilio Inbound/Outbound issues. I'm proficient in Base44 and have a deep understanding of AI/Voice Integration technologies like Twilio and Google Gemini API. I can troubleshoot and fix bugs promptly to ensure seamless functionality for your CompanySync platform. Looking forward to diving into the Base44 environment and addressing the critical priorities. When can we kick off this exciting project?
$225 USD en 1 jour
4,6
4,6

Hello, I understand that you need a Senior Full-Stack Developer to address critical bugs within your CompanySync platform hosted on Base44. I have extensive experience with React.js, Node.js, and AI integrations, and I’m confident in my ability to resolve the following high-priority issues: - AI Voice Interruption (BUG-001): I’ll resolve the Gemini Live Voice interruption issues and improve Voice Activity Detection (VAD). - Twilio Inbound/Outbound (BUG-013/014): I will fix the TwiML handlers for inbound voice calls and SMS responses to ensure smooth AI assistant interactions. - Google Calendar Sync (BUG-003): I’ll address the domain verification and webhook issues to enable two-way sync. - Data Deduplication (BUG-004/005): I’ll fix the race conditions causing duplicate records and backfill the multi-tenant company_id. With proficiency in Base44, AI/voice integration, and third-party Google Calendar API (OAuth2, Webhooks), I can quickly jump into the environment and resolve issues efficiently. I’m available to start immediately and am focused on delivering a clean and stable fix for all open bugs. Let’s work together to enhance the platform’s performance and reliability! Best regards, Munib S.
$200 USD en 3 jours
4,8
4,8

Hi there, I’ve reviewed your System Audit Report summary. These aren’t just "bugs"—they are critical infrastructure issues, and I have the specific experience with Base44, Twilio, and the Gemini API to resolve them immediately. My immediate plan for your Critical Priorities: AI Voice (VAD & Interruption): I will dive into your WebSockets and Voice Activity Detection logic. I’ve handled similar Gemini Live integration issues where the interruption flow gets "stuck" due to buffer mismatches. Twilio & TwiML: I'll debug your serverless handlers to ensure inbound/outbound calls route correctly to the AI, fixing the TwiML response timing. Google Calendar Sync: I’ll handle the Google Cloud Console domain verification and fix the webhook watch channels to ensure the two-way sync is reliable. Race Conditions: I will implement proper locking or atomic updates in your Node.js functions to stop the company record duplication and backfill the missing company_id tags. I am an expert in React and Node.js and I’m comfortable working directly within the Base44 editor. I understand this is urgent and I am ready to start the "Bug Bash" right now to clear these 15 issues. Best regards, Albert C.
$250 USD en 7 jours
4,6
4,6

Hi there, I'm Kristopher Kramer from McKinney, Texas. I’ve worked on similar projects before, and as a senior full-stack and AI engineer, I have the proven experience needed to deliver this successfully, so I have strong experience in Android, Backend Development, Node.js, Linux, Frontend Development, XMPP, AI Development, Debugging, API Integration and Twilio. I’m available to start right away and happy to discuss the project details anytime. Looking forward to speaking with you soon. Best regards, Kristopher Kramer
$225 USD en 1 jour
4,9
4,9

Hi, there, I'm an experienced Full-Stack Developer specializing in React and Node.js, with extensive AI integration knowledge. Working directly within the Base44 editor, I'll swiftly address Critical and High Priority bugs in CompanySync, focusing on fixing AI Voice Interruption, Twilio Inbound/Outbound issues, Google Calendar Sync problems, and Data Deduplication. ✅ Utilizing my Base44 expertise, I'll debug React components, Node.js functions, and AI integrations efficiently. ✅ Implement robust solutions for the AI Voice Interruption, Twilio Inbound/Outbound bugs, Google Calendar Sync challenges, and Data Deduplication issues. ✅ Employ WebSocket, Twilio Programmable Voice, and Google Gemini API knowledge for seamless AI integration. ✅ Resolve Twilio handlers, Google Calendar API complexities, and race conditions causing data duplication. ✅ Conduct a comprehensive System Audit to address all 15 open issues promptly. I look forward to working with you. Best Regards, Brayan
$225 USD en 1 jour
4,4
4,4

Hello I’m a senior full-stack developer with deep experience in React, Node.js, AI/voice integrations, and third-party APIs. I’ve worked with Twilio, Google Calendar, WebSockets, and AI voice systems extensively. I can jump into your Base44 environment and start fixing your critical and high-priority bugs immediately. From Gemini Voice interruptions, Twilio call/SMS handling, Google Calendar sync, to data deduplication, I can handle all of it efficiently. I’m ready to start right now, review your System Audit Report, and deliver clean, tested fixes fast so your platform runs smoothly. Thanks Sagar
$300 USD en 7 jours
4,5
4,5

As an experienced Senior Full-Stack Developer for over 8 years, I have not only honed my proficiency in technologies like React and Node.js that your project demands, but I've also developed a deep appreciation for the struggle with bugs. Fixing complex issues quickly and efficiently is a hallmark of my work, and I'm confident I can deliver the results you need to resolve the Critical Priorities of your Base44 application. In addition to excellent familiarity with React and Node.js, which is essential to align with your request, I also bring some unique skills to the table. My expertise with AI development and my proficiency in using WebSockets, Twilio Programmable Voice, and Google Gemini API would be invaluable in troubleshooting the reported issues. Moreover, my experience integrating third-party APIs – especially those of Google Calendar – will prove vital for resolving the BUG-003 you've specified. Above all else, I understand the urgency of your project's bug hunting phase and the need for a quick turnaround. Trust me to delve into your Base44 environment without delay and start rolling out the necessary fixes. With a strong background in building end-to-end solutions for startups and enterprises alike, rest assured that I am well-equipped to tackle your project's scope effectively.
$200 USD en 3 jours
4,2
4,2

Hi, I understand the urgency of your project and believe I'm the right fit to tackle the critical bugs within your CompanySync platform. As a Full-Stack Developer with over 7 years of experience in React and Node.js, I can effectively debug the issues you’ve outlined, including the complex AI integrations. I have extensive experience working with third-party APIs and have resolved similar high-priority bugs in past projects. My strong understanding of Twilio integrations, Google Calendar APIs, and voice applications will ensure quick resolutions for your current challenges. I am ready to jump into the Base44 environment and implement fixes immediately, reducing downtime for your business. Let's discuss how we can proceed efficiently to resolve these issues. Best regards, Andrii
$225 USD en 1 jour
4,2
4,2

Hello Virgil, ❤️Your satisfaction is my priority❤️ I would like to grab this opportunity and will work till you get 100% satisfied with our work. I have carefully reviewed your job posting and applied because I am confident that I can help you. I have over 10 years of experience in the Linux, Android, Debugging, Node.js, XMPP, Backend Development, Frontend Development, Twilio, API Integration, AI Development field and am highly skilled at delivering high-quality results. Having recently worked on a project similar to yours, I believe my skills are a good fit for your project. I will work diligently and dedicatedly to ensure the success of your project. Please contact us via chat for a more detailed consultation. I can share my experience and solutions for this project through a private chat. I have some ideas for your project and would like to see if they align with your needs. Thank You Roman
$200 USD en 7 jours
4,3
4,3

Hi there Thanks for posting this exciting project. I checked your project carefully, I think I can complete your project within your needed timeline. I am super professional in Linux, Android, Debugging, Node.js, XMPP, Backend Development, Frontend Development, Twilio, API Integration, AI Development Please ping , I am always online here Thanks Efanntyo -.
$100 USD en 90 jours
4,2
4,2

Hi! I’m confident I can jump right into your Base44 platform and tackle these critical bugs head-on. With expert-level React and Node.js skills, plus hands-on experience integrating Twilio, Google Calendar APIs, and AI voice systems, I understand the complexities of VAD, WebSockets, and multi-tenant data handling. I’m ready to hit the ground running and ensure your CompanySync platform runs smoothly and reliably. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T
$250 USD en 7 jours
4,4
4,4

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