Back-End Developer for an OpenAI API

Budget: 18000 UAH Deadline: 12 days

I am developing AI services.

I implement the following:
- Integration with OpenAI API chat or assistant
- Management of PostgreSQL database
- Development of RESTful API requests, user accounting, billing.
- Server optimization

Technology stack: FastAPI, Python

In the portfolio, there is a project with virtual specialists, including culinary: https://freelancehunt.com/showcase/work/telegram-bot-virtualni-spetsialisti-na/1889482.html Expand

Budget: 20000 UAH Deadline: 1 day

Our team specializes in full-cycle web development and digital marketing. We provide comprehensive services for the development and promotion of online solutions:

💻 Website and application development:
HTML / CSS / PHP website layout

Development on the Laravel framework

Creating websites on WordPress (custom solutions, integrations)

Mobile app development for iOS and Android

📈 Internet marketing and promotion:
Setting up advertising on Google Ads, Facebook, TikTok
SEO and copywriting

Promotion through push notifications and in-app advertising

Marketing analytics, A/B testing, campaign optimization

🎨 Design solutions:
Own design department

UI/UX design, branding, advertising creatives

We have the entire implementation cycle — from development to audience engagement.

We will be happy to discuss cooperation or prepare a custom proposal for you. Expand

Budget: 27000 UAH Deadline: 30 days

I am interested in the position of Back-End Developer for your culinary application that uses OpenAI API. My experience with Node.js, Express.js/Nest.js, MongoDB/PostgreSQL, and TypeScript allows me to effectively implement the functionality needed for your project.

My skills and experience:
Integration with OpenAI API: Handling requests and responses for recipe generation.
Database management: Storing user data, recipe history, and preferences using PostgreSQL or MongoDB.
Implementation of authorization: Enabling login via Facebook, Google, and email.
Development of RESTful API: Creating a reliable bridge between Front-End and Back-End.
Server optimization: Ensuring scalability and performance of the server side.
I have experience in building and scaling server infrastructure for MVP, allowing for rapid deployment of new features and optimizing them for high performance.
My stack: nest.js docker
I would be happy to join your team and help implement an advanced culinary application.
Here is an example of an application for Shopify that I developed: https://apps.shopify.com/autoblog-ai-easy-blogging?search_id=b55443da-0c06-4bd7-84c7-e0ee760522f0&surface_detail=ai+blog&surface_inter_position=2&surface_intra_position=10&surface_type=search Expand

Budget: 27000 UAH Deadline: 29 days

Hi Vita,

Your project for a culinary app leveraging OpenAI API sounds like a groundbreaking innovation in technology and gastronomy! At Coderfy, we have relevant experience in developing similar solutions and are confident that we can help your team successfully launch the MVP and ensure scalability in the future.

One of our notable projects is a service for ordering and delivering meals from top chefs in Spain, which we developed end-to-end—from design to a web application. We are currently working on its mobile apps. Additionally, we’ve created two in-house products integrating OpenAI API, so we deeply understand how to harness its capabilities for personalization, content generation, and interactivity.

We also have extensive experience in developing mobile applications using Flutter and React Native, enabling us to adapt the back-end to any front-end framework seamlessly.

Beyond technical expertise, our team has a unique advantage: one of our managers previously worked as a nutritionist. This allows us to better understand user needs and create effective menu personalization solutions.

For your project, we can handle:
- Integrating OpenAI API for recipe generation and menu personalization.
- Building a RESTful API for reliable interaction between front-end and back-end.
- Developing server architecture using Node.js (Nest.js or Express.js).
- Optimizing server performance for scalability and efficiency.
- Implementing authentication via Facebook, Google, and email.

To better understand your project’s needs, could you please share:
- Is there an existing front-end or its prototype?
- What data and integrations are planned for menu personalization?
- Are there any additional materials to help us dive deeper into the project context?
We would be delighted to discuss all the details and propose solutions to help you launch the MVP at the highest level!

Looking forward to hearing from you! Expand

Budget: 1000 UAH Deadline: 1 day

Good day!
I am glad to help.
I have extensive experience in web development.

Budget: 20000 UAH Deadline: 20 days

Вітаю!
Раніше мав досвід в розробці та підтримці довго строкових проектів як просто бекенду на express та mongodb із запуском на хостингу для успішного тесту і вже подальшого запуску, а також проектів повного стеку. Тому можу за необхідності окремо зробити frontend частину.
Hello!
Previously i had experience in developing and maintaining long-term projects based on Node.js, express and mongodb with run on hosting for future tests and followed by production launch also have fullstack projects. Therefore i can make frontend part if you wish.

Budget: 27000 UAH Deadline: 15 days

Hello! I’m a Back-End development specialist and ready to take on this project. I have experience working with Node.js, Nest.js, MongoDB/PostgreSQL, and TypeScript.
Feel free to message me to discuss all the details!

Budget: 27000 UAH Deadline: 20 days

I specialize in Back-End development using Node.js, Nest.js, MongoDB/PostgreSQL, and TypeScript. I have experience integrating APIs (including OpenAI), building RESTful APIs, optimizing servers, and implementing authentication. I'm ready to help launch your MVP and support the project's scalability.
Let’s discuss the details!

Budget: 27000 UAH Deadline: 30 days

Hello. I have extensive experience with Nest.js. Ready to collaborate. Contact me.

Budget: 10000 UAH Deadline: 10 days

Hello!
We are the ITZeyz team, specializing in web platforms and AI.
We can implement your task without any problems. We have experience in creating applications using various AI models (chatGPT, Claude, Gemini, etc.). We can generate images and avatars. We know how to set prompts and optimize costs for generation.

For detailed discussion, I suggest contacting us privately.
Our technical director, with over 8 years of experience, and our team of professional developers and designers will ensure quality execution of the task.

We look forward to your response and will be happy to collaborate!
Best regards,
The ITZeyz Team

Budget: 7000 UAH Deadline: 10 days

Good evening. I have worked with: node.js, express, MongoDB. I implement the Back-End part, and if necessary, I will set it up and deploy it on the server. I can also administer the server on which it is deployed and monitor for errors.

Budget: 3000 UAH Deadline: 7 days

Добрый день! Заинтересовал ваш проект. Работаю на Node.js/ Express.js/MongoDB/PostgreSQL / Typescript.
Готова обсудить детали.

Моя работа на PHP/MySQL:
https://freelancehunt.com/showcase/work/sayt-na-php-jquery/1890373.html
- C#/.NET, SQL SERVER
https://freelancehunt.com/showcase/work/crm-agenstvo-nedvizhimosti-na-c-net-windows/1891594.html
- React+Node.js:
https://freelancehunt.com/showcase/work/sayt-full-stack-reactjs-node-mongodb-express/1889361.html
- HTML/CSS/JS:
https://freelancehunt.com/showcase/work/html-css-veb-sayt-salon/1892097.html Expand

Budget: 20000 UAH Deadline: 10 days

Hello!
I have automated a lot for my own use with the help of OpenAI and EdenAi.
I am interested in learning more about the specifics of integrating the OpenAI API into your culinary application.
In general, it would be very interesting to work on this project, so I will be waiting for feedback.

Budget: 1111 UAH Deadline: 1 day

Good day.
Middle node js developer with 4+ years of commercial experience
Stack: TS, NestJS, express, MongoDB, Sequelize (PostgreSQL).
Experience in creating a recipe bot (with the help of AI for Telegram)

Budget: 20000 UAH Deadline: 21 days

Good day
Look towards cross-platform .Net
I have experience with AI and integrations, specifically with Mongo
If you are interested in the stack, please feel free to discuss.

Budget: 16666 UAH Deadline: 3 days

Good day, I am a backend developer with 5 years of experience. I have experience in integrating API services and custom OpenAI bots. My stack is Express, MongoDB, Typescript. I am interested in your project, let's discuss the details) English is also at a decent level if needed.