Freelance projects

Freelance projects

Finish the Next.js application Developer

App Development for Android, Apps for iOS (iPhone and iPad) — incorrectly specified categories?

89 USD

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We are looking for an experienced Next.js developer to work on an existing MVP application. The project already has a ready interface in TSX, a working backend, and integration with a database, but requires optimization, integrations, and improvements. It operates through a browser.

Main tasks:

Fixing connection issues of the application to PostgreSQL 17.1.
Migration from Superbase to PostgreSQL 17.1 (full)
Fixing frontend and backend errors:
- slow opening of the chat page,
- issues with displaying new chat pages.
- optimization of the appearance on mobile and tablet devices (basic)
Integration of registration/login with the existing backend on Laravel.
Setting up data exchange between Next.js and Laravel via API.
Development and implementation of RAG solution (Retrieval-Augmented Generation) based on data from PostgreSQL (there is a working prototype and API).
Knowledge of TailwindCSS, NextJS
Other technical fixes and optimization.

Requirements:

Experience with Next.js and React (TypeScript/TSX).
Knowledge of PostgreSQL (preferably 17.1 or newer versions).
Experience in integrating Frontend ↔ Backend via API.
Understanding of working with Laravel API.
Basic understanding of RAG / AI integration concepts will be a plus.
Ability to optimize application performance.

We offer:

Work on a fully functional MVP that is moving to the next stage of development.
Opportunity to implement modern technologies (Next.js, PostgreSQL 17.1, RAG, AI).
Flexible schedule and remote collaboration.

The price is negotiated individually, payment is safe. Payment from to for safe. The range is from 4000-12000 UAH. Part-time. In case of completing several successful tasks, we are ready to take you on a permanent basis.

Additional instructions: Safe. Test task. Experience with similar things. Integration of mobile applications and CRM systems. NDA

Proposals 6 Withdrawn 1 Rejected 1

Bogdan Hora

6 0

Budget: 4000 UAH Deadline: 1 day

Hello!
My name is Bohdan, I represent the company High Digital League, which specializes in developing web solutions on Next.js / NestJS / Laravel and integrations with databases and external services.

We have carefully reviewed the task and can assist with:
-migration from Supabase to PostgreSQL 17.1,
-fixing connection errors,
-optimizing chat performance and displaying new pages,
-basic adaptation for mobile and tablet devices,
-integration of authorization/registration with Laravel backend,
-setting up data exchange via API,
-implementing RAG solutions (we have experience working with AI integrations).

We have practical experience in:
-Next.js + React (TypeScript/TSX),
-PostgreSQL 17+,
-Frontend ↔ Backend integrations (Laravel API),
-performance optimization,
-implementing modern solutions (TailwindCSS, AI).

✅ We work safely, offer a transparent process, and can complete a test task.
We are interested in long-term cooperation and are ready to become your technical partner.

When would it be convenient for you to discuss the details of starting the project?

📲 Contacts and portfolio:
📸Instagram: https://www.instagram.com/high_digital_league/
👥LinkedIn: https://www.linkedin.com/company/high-digital-league
🎨Behance: Behance
💻FreelanceHunt: Freelancehunt

Oleksandr Stoian

0 0

Projects -
Rating -
Rating 129

Budget: 5000 UAH Deadline: 1 day

Hello,
This is my previous work using Next.js

https://molly-skin.vercel.app/

Please check and let me know if you are interested in work with me.
Hope to reply.
Thanks.

Ihor Nadolskyi

47 0

Budget: 4000 UAH Deadline: 1 day

Hello, I have experience with everything listed. I look forward to the details in private. I will be happy to help you!

Sergey Stadnychuk

53 0

Projects 51
Rating -
Rating 2 454

Budget: 4000 UAH Deadline: 1 day

Good day. I have extensive experience in development with TypeScript Next.js.

The list does not show proposals concealed by the client or freelancer with a Plus profile, as well as proposals violating rules

Andrey K.

1 299 1

Budget: 4000 UAH Deadline: 1 day

Hello. I have extensive experience with Next.js. I am ready to collaborate. Feel free to contact me.

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Finish the Next.js application Developer

Main tasks:

Requirements:

We offer:

Bogdan Hora

Oleksandr Stoian

Ihor Nadolskyi

Sergey Stadnychuk

Proposals are currently absent

Proposals concealed

Andrey K.

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