• Projects 163
  • Rating 5.0
  • Rating 4 470

Budget: 500 USD Deadline: 10 days

Experience of over 12 years in web development, particularly in the development of complex SaaS solutions and integrations with numerous APIs, which makes me confident in implementing your platform. I pay special attention to architecture considering multi-user systems with clear role separation and data security.

Integrations with Meta Marketing API and TikTok Ads API are not new tasks — I have experience in setting up synchronization of advertising data, statistics, and expenses. I have developed smart billing systems based on PHP/Laravel with automatic invoice generation, support for various types of commissions, and retry logic for payments. Interaction with payment gateways and webhooks for tracking payment statuses fits well within my stack.

Regarding the frontend — I have experience with Tailwind CSS and Vue, which aligns perfectly with your design and approach to UI, and I also use REST API for communication with the backend. As for the backend — my strong suit is PHP, Laravel with work on MySQL/PostgreSQL databases, caching through Redis, as well as Docker and Git for organizing cross-platform development and deployment.

I am ready to take responsibility for the entire architecture of the platform, optimize work with external APIs, automate business logic, and ensure stability and scalability. I actively use AI tools to enhance development productivity, which is your priority.

In summary, I will ensure the rapid implementation of core functionality, easy maintenance, and flexible opportunities for further development of the platform. I would be happy to collaborate constructively with your founder on a complex product without bureaucracy.

  • Projects 6
  • Rating 5.0
  • Rating 1 058

Budget: 499 USD Deadline: 3 days

Hi,

I came across your listing for a full-stack developer to build your internal SaaS platform, and it maps almost exactly to what I've been building for the past year.

I'm a backend developer specialising in production Python systems — multi-tenant SaaS platforms, payment pipelines, webhook-driven automation, and async architecture. Here's where my experience directly overlaps with what you need:

• Multi-tenant SaaS with strict data isolation — built a full AI support platform with tenant_id scoping on every query, encrypted API key management, and a subscription model with payment integration.

• Payment integrations & failure handling — integrated CryptoCloud and Lava.top (card payments globally) including retry logic, webhook handling, and automated state changes on payment events. Translates directly to the GoHighLevel billing + campaign pause logic you described.

  • Projects -
  • Rating -
  • Rating 224

Budget: 500 USD Deadline: 5 days

Good day!
The project looks very interesting, especially the part about finance automation and integrations with Meta / TikTok API.

I have experience working with React/Next.js, API integrations, state management, and building SaaS logic. I have also worked with payment systems and processing asynchronous processes.

I am ready to get involved, help with the architecture, and bring the product to production level.

I would be happy to discuss the details 👍

  • Projects 47
  • Rating 5.0
  • Rating 12 214

Budget: 500 USD Deadline: 1 day

Hello, I have relevant experience
Please contact me via private message
I'd be happy to help you!

  • Projects 9
  • Rating 5.0
  • Rating 726

Budget: 500 USD Deadline: 3 days

Hello! After reviewing your project, I am ready to start working on it. I can offer optimal solutions to achieve the best result.

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