• Projects 12
  • Rating 5.0
  • Rating 3 032

Budget: 3500 UAH Deadline: 7 days

Good day!

I have reviewed the description — the project looks quite serious, especially considering that the PBX is already deployed and has been tested with real calls.

I can assist with code review and further technical audit: I will look at the architecture of the NestJS backend, interaction with Asterisk AMI, WebRTC functionality, Socket.IO, as well as the overall stability of the system under load. I will pay special attention to bottlenecks — asynchronous processes, queues, call event handling, possible race conditions, and scalability.

After the review, I will be able to provide specific recommendations on what should be optimized or redesigned, and if needed, I can get involved in further development and support of the project as a freelance specialist.

We can discuss the details.

  • Projects 42
  • Rating 5.0
  • Rating 6 104

Budget: 3500 UAH Deadline: 1 day

Hello! I am ready to take on your project and will complete it urgently. I have extensive experience with similar tasks, so there will be no difficulties. If I have piqued your interest, feel free to write; I am happy to collaborate!

  • Projects 5
  • Rating 5.0
  • Rating 673

Budget: 3500 UAH Deadline: 7 days

Hello, I worked on the development of a CRM system for telephony with Asterisk and WebRTC integration - the project helped process over 500 calls a day and automated call center workflows.

Is there a plan to integrate with external CRM systems or APIs to expand the functionality of the PBX?

I suggest we get in touch; I will provide you with free technical consultation and we can create a development plan + I will tell you about my team!

  • Projects -
  • Rating -
  • Rating 516

Budget: 3500 UAH Deadline: 7 days

Hello, lrp energy team!

For a quality code review and refinement of your ATS platform, please clarify:
1. Are there any main functional requirements that should be checked first?
2. Is there documentation or technical specifications that could assist in the analysis?
3. Which specific aspects need to be checked: security, performance, scalability?
4. Are there certain parts of the code that should be given special attention?

My approach to work:
1. I conduct a deep analysis of the code with a focus on identifying weaknesses and potential improvements.

  • Projects 48
  • Rating 5.0
  • Rating 3 481

Budget: 3500 UAH Deadline: 3 days

Hello. I have worked with telephony and can consult you. The technology stack is relevant, so feel free to reach out - I would be happy to help!

  • Projects -
  • Rating -
  • Rating 196

Budget: 3500 UAH Deadline: 2 days

Good day. I can take on the first stage - a technical review of the ATS before the commercial launch.

For the task, I see not just a code review, but an examination of the areas where such systems usually break down - WebRTC, Asterisk AMI, Socket.IO, reconnections, call states, logging, Prisma/PostgreSQL, deployment, security, and behavior under load.

I would like to clarify 2 points.
> Is there access to the repository, logs, and a brief description of the current deployment?
> At this stage, do you only need an audit with a list of risks, or should I also include small fixes within the budget?

Similar examples of our work.
> https://business.ingello.com/tts - voice and AI processes, close to communication tasks.

  • Projects -
  • Rating -
  • Rating 241

Budget: 5000 UAH Deadline: 1 day

Welcome!

The Devoxen team has experience in auditing and refining web platforms, including CRM/ATS systems, backend architecture, and complex business logic.

We can assist with:
- code review and identifying problem areas;
- architecture, performance, and security analysis;
- enhancing ATS platform functionality;
- refactoring and stabilizing code;
- fixing bugs and optimization;

  • Projects 4
  • Rating 4.9
  • Rating 976

Budget: 6000 UAH Deadline: 2 days

Good day
My name is Dmytro. I work with NestJS, Next.js, WebRTC, Socket.IO, PostgreSQL, and realtime/backend systems. I also have experience with VoIP, automation, and AI solutions.
I can conduct a full review of your PBX:
— check the architecture
— identify weak points
— assess load and scalability
— check security
— optimize WebRTC/Asterisk interaction
— improve stability and realtime components
I can also assist with ongoing support and development of the project on a regular basis.

  • Projects 6
  • Rating -
  • Rating 410

Budget: 4500 UAH Deadline: 1 day

Hello!

I am a Full-Stack Software Engineer with over 7 years of experience in developing websites, SaaS solutions, complex web platforms, and MVPs for startups - from idea and architecture to production and support.

I work not only as a developer but also with a focus on business logic, scalability, and long-term support of solutions. My portfolio includes examples of implemented projects of varying complexity.

Technology stack:
PHP (Laravel, Symfony, Yii2),
Frontend: JavaScript (Vue.js, React.js), HTML5, CSS3,
Databases: MySQL, PostgreSQL.

  • Projects -
  • Rating -
  • Rating 482

Budget: 3500 UAH Deadline: 4 days

Hello, Ihor!

I am happy to help you conduct a professional audit and refine the ATS platform. It's great that Claude has put together a working framework, but for a commercial product (especially in conjunction with telephony), a live code review of the architecture is critically important.

I am fully proficient in your stack: NestJS (TypeScript), Next.js 14, Prisma, PostgreSQL, Socket.IO, and Asterisk AMI / WebRTC. I have a good understanding of the specifics of AI code—where it usually "hallucinates," where it creates unnecessary abstractions, or writes suboptimal database queries.

Since the most challenging aspect of telephony is the stability of the connection and the processing of real-time events, I suggest breaking the work into two logical steps:

Stage 1: Full technical audit (Code review). Within 2–3 days, I will thoroughly study the repository, check the stability of socket connections, the logic of NestJS interaction with Asterisk AMI, the operation of WebRTC, and the optimization of Prisma queries. Based on this, I will provide a clear report with identified weaknesses and bugs.

  • Projects -
  • Rating -
  • Rating 522

Budget: 3500 UAH Deadline: 1 day

Hello! I am a full-stack developer working with both backend and frontend. Therefore, I can help with this task.

  • Projects 37
  • Rating -
  • Rating 2 986

Budget: 3500 UAH Deadline: 1 day

Good day. I am developing on nest.js, we can call to discuss the details. I have experience with PBX. It is necessary to evaluate the backend. Unfortunately, I do not work with next.js.

  • Projects 40
  • Rating 5.0
  • Rating 2 677

Budget: 3500 UAH Deadline: 1 day

Good day! I have reviewed the project description and stack. I have good experience in fullstack development and working with real-time systems, so I can conduct a comprehensive technical review of the PBX, identify weaknesses, and suggest more stable and scalable solutions for commercial launch.

I am particularly interested in your stack, as I work with:
• NestJS / TypeScript
• Next.js
• PostgreSQL / Prisma
• Socket.IO / WebSocket
• WebRTC and backend architecture of real-time services

I will be able to:

Kostyantin Y.

Kostyantin Y.

Winning proposal
5 0
  • Projects 5
  • Rating 5.0
  • Rating 601

Budget: 3500 UAH Deadline: 7 days

Hello!
Very interesting stack and good approach, especially if the ATS has already passed real tests and works in production scenarios.

I have experience working with realtime systems, WebRTC, NestJS/Next.js architecture, Socket.IO, and high-load/backend projects. I can join specifically as a person for technical review and production-hardening.

What I can do for the project:

— audit of backend/frontend architecture
— review of Asterisk / AMI / WebRTC integration
— analysis of realtime part stability

Andrey K.
1 281 1
  • Projects 1 285
  • Rating 5.0
  • Rating 97 390

Budget: 3500 UAH Deadline: 1 day

Hello. I have been working with Node.js for over 9 years. I am ready to collaborate! Feel free to contact me.

  • Projects 6
  • Rating 5.0
  • Rating 1 014

Budget: 3500 UAH Deadline: 1 day

Hello, I have experience in creating products using generative models.

They often write too much code, which can conflict in non-obvious ways.

It is necessary to review your database, the logic of how the application works, review the architecture, and write tests for the server.

I am ready to help you with this, break the work into stages, and develop a commercial solution that can be scaled for sales.

  • Projects 5
  • Rating 5.0
  • Rating 954

Budget: 3500 UAH Deadline: 1 day

Hello! Very interesting project. The fact that the ATS is built using Claude and is already successfully making calls in production is a great start for the MVP.
However, from my experience with refactoring AI code, I can say for sure: neural networks generate a decent base, but almost always ignore proper architectural patterns, edge case handling, and load optimization. For a commercial product, especially where WebRTC, Socket.IO, and Asterisk AMI are actively used, this is critical. Most often, such projects encounter issues with socket disconnections, memory leaks, or event loss from AMI during scaling.
Your stack (NestJS, Next.js 14, Prisma, Socket.IO) is my main development profile. I am ready to conduct a deep expert review of the entire platform.
Here’s what I will focus on during the review:
• NestJS Architecture: AI often "glues" all business logic directly into controllers or gateways. I will check the code cleanliness and the correctness of the separation into modules/services.
• Connection Stability: An audit of how WebRTC and Socket.IO disconnections are handled, and whether reconnection mechanisms are implemented without state loss.
• Database Optimization: I will check Prisma queries (especially for the N+1 problem) and the efficiency of transactions under high load.
• Asterisk AMI: The reliability of event listeners and their correct broadcasting to the frontend.
I am focused on long-term collaboration, so after the review and targeted refactoring of weak points, I would be happy to take the project for ongoing support and development.
My projects with complex custom backend logic:

  • Projects -
  • Rating -
  • Rating 172

Budget: 3500 UAH Deadline: 2 days

I am a NextJs, React, NestJs developer. I am ready to take on this task.

  • Projects 5
  • Rating 5.0
  • Rating 1 567

Budget: 3500 UAH Deadline: 1 day

Good day. I have experience working with VoIP/WebRTC solutions, Asterisk, NestJS, and real-time systems. I can conduct a full technical review of the PBX: check the architecture, security, stability of the WebRTC/Asterisk integration, the operation of Socket.IO, load, reconnect logic, call handling, race conditions, and potential issues in production.

I can also assess the quality of the code, the Prisma/PostgreSQL part, deployment, and scalability of the system, point out weaknesses, and suggest more stable solutions where needed. If necessary, I can assist with refactoring or enhancements.

  • Projects 9
  • Rating 5.0
  • Rating 701

Budget: 3500 UAH Deadline: 3 days

Hello! Your project looks very promising. I am ready to start working and complete it at the highest level.

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