Improvement of the existing Next.js/Supabase project: offers, CRM, analytics, AI chat

Budget: 12000 UAH Deadline: 2 days

We can start with a short technical review - usually, it takes 1-2 working days for the first analysis of such a project. For payment, it's more convenient to have a fixed fee for the first stage; afterwards, we can proceed in stages based on tasks or hourly, if after the review it becomes clear that there are many tasks and some of them are exploratory =)

We have worked with Next.js, React, PostgreSQL, and Supabase, and also worked with existing code without rewriting from scratch - through staging, branch, pull request, review of changes, and division of tasks into frontend, backend, database, analytics, and integrations. It seems important here not just to tweak the Buy buttons, but to check the chain model - offer - application - lead - analytics event - AI assistant, otherwise the commercial logic may fall apart in reports and CRM.

For the first stage, we will provide a plan for improvements, a scheme of necessary changes in the database, a list of risks, an estimate of timelines and costs by blocks. Production access is not needed at this stage - a repository, staging, a description of the current offer logic, the structure of Supabase tables, and a list of already connected APIs are sufficient.

Similar examples
> https://business.ingello.com/prime-eva - e-commerce and commercial logic, where products, applications, analytics, and integrations are important
> https://business.ingello.com/forma-crm - CRM layer, applications, roles, and management logic
> https://business.ingello.com/vorfahr - AI and automation of user scenarios

The main page of Ingello for the exchange - https://systems-fl.ingello.com

I will clarify 2 points for an accurate assessment
> Are there already tables for leads, watchlist, price alerts, and seller offers in Supabase, or is part of this temporarily stored in JSON/CSV?
> Does the AI chat currently just respond to prompts or is it already linked to the catalog, prices, and offers?

We can start with the review. In general, it's fine to proceed without radical rewriting - if the architecture is alive, careful phased improvements are usually more beneficial than a big beautiful fire out of nowhere. Expand

Budget: 2500 UAH Deadline: 1 day

Good day, Yevhenii
I have 10 years of experience in development, working with the tech stack on React Native (+TypeScript), React.js (Next/SSR +TypeScript), backend Node.js (Express/Nest) + MongoDB, Firebase + TS.
I can start with a technical review after access to staging/branch/a brief documentation on the current architecture is provided.
Feel free to write, I would be happy to collaborate.
Sincerely, Oleksii.

Budget: 27000 UAH Deadline: 20 days

Good day. We will finish it. There are examples. About us: https://viacore.group

Budget: 1111 UAH Deadline: 1 day

Hello, my name is Nikita.
I am ready to help with the refinement of your project WatchGenius, a luxury watch analytics platform.

I have experience working with Next.js, React, Supabase, and PostgreSQL, as well as with API integrations and analytics.
I have worked with existing code, performed step-by-step task assessments, and carefully worked through staging/branch/pull requests.

I am ready to start with a brief technical review of the project, assess the tasks, and provide a rough plan.
The first phase will require about 4-6 hours to review the project and provide a detailed plan.

Estimated price, timeline: $240-360, 4-6 hours.
Hourly payment is convenient for me, and I am ready to start working as soon as possible. Expand

Budget: 2000 UAH Deadline: 1 day

Hello.

I am a NodeJS developer.

1. Yes.
2. In the portfolio.
3. Yes.
4. Yes.
5. 3-4 hours.
6. Fixed for the stage.
7. Today. Expand

Budget: 1000 UAH Deadline: 1 day

Hello. I have been working with React/Node.js for over 9 years. I also have extensive experience with Next.js/Nest.js. I have experience in developing chats with AI integration as well. I am ready for collaboration.

Budget: 2000 UAH Deadline: 7 days

Hello, I worked on a cryptocurrency analytics project with Next.js + Supabase, where I developed a CRM for leads, integration with external APIs, and an AI chat for consultations. We processed 10K+ users monthly with analytics through GA4.

I’m curious if you plan to integrate real auction data from Christie's or Sotheby's for more accurate pricing on rare models?

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

Budget: 12000 UAH Deadline: 5 days

I have experience working with Next.js/React and PostgreSQL in commercial projects. I have worked with existing code without rewriting from scratch, using staging, branches, and pull requests. I understand the importance of the entire chain: offer - lead - CRM - analytics, especially when the project is already partially ready and needs careful adjustments to the commercial logic without breaking what works.

I have worked with Supabase at the level of table structure, RLS policies, Edge Functions, and API integrations. I have also encountered the OpenAI API. I am ready to start with a short technical review, after which I will provide a clear plan: what is needed in the database, what on the frontend, what in analytics, where the risks are, and approximate timelines.

The first phase will require 1-2 working days. Regarding payment - a fixed fee for the phase, further discussions can be held. I can start in the near future.

Budget: 9000 UAH Deadline: 3 days

Hello, Yevhen! I work with Next.js/React and integrations on Supabase/PostgreSQL. I can understand other people's code and work neatly: staging/branch/PR, gradual implementation without rewriting from scratch.

I am ready to start with a short technical review: in 2-3 days I will prepare a work plan (Seller Offers/pricing logic, CRM/lead database, Get Quote/Price Alert/Watchlist forms, transitions through external offer links, GA4/GTM events).

Payment: fixed for the first stage + then step by step. I can start today/tomorrow.

Budget: 2000 UAH Deadline: 1 day

Hello!

Next.js + Supabase/PostgreSQL is our specialized stack, and improving existing projects without rewriting from scratch is exactly the format we work in. Our approach completely aligns with yours: first a short technical review, analysis of the architecture, and a clear plan, and only then changes — through staging/branch/pull request, carefully and reversibly.

We respond to your points:

Experience with Next.js / React and Supabase/PostgreSQL — ongoing work, including API integrations, importing CSV/JSON, and OpenAI API.
We regularly work with existing code: we understand others' architecture, make targeted improvements without breaking the current logic.
All tasks are within our competence: pricing logic and external offers, the Seller Offers block, correct Buy/external transitions, CRM/leads layer, forms (Get Quote, Price Alert, Watchlist), GA4/GTM analytics events, and improving the AI chat as a watch selection assistant.
For the first stage: we are ready to start with a short technical analysis and provide a plan based on it — what improvements are needed, what changes in the database, breakdown of frontend/backend, phased assessment, and risks of the current implementation. Production access is not needed at this stage — we work in a safe format, as you described.

Payment format — a fixed fee per stage is more convenient (transparent for both you and us), hourly is also possible. We are ready to start in the near future.

Details and deadlines for the first analysis will be discussed in private messages. Expand

Budget: 8000 UAH Deadline: 15 days

Good day, I am just starting my freelance career, but I have been working for almost a year in an IT company as a Next.js/NestJS developer. I also actively work with Supabase and Vercel. I would like to collaborate with you; let's discuss all the details and agree on the cooperation. Thank you!

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.

Regarding timelines and costs - at this stage, it is difficult to accurately assess them without clarifying the requirements. To form a reasoned estimate, it is usually necessary to understand:
- project goals;
- key functionality;
- expected load and integrations;
- priorities (quick launch vs scaling).

I suggest starting with a brief clarification of the requirements or a call / correspondence - after that, I will be able to provide a realistic estimate on timelines, budget, and implementation options.

I would be happy to discuss the details. Expand

Budget: 1000 UAH Deadline: 1 day

Hello! I have experience working with the NextJS admin panel, PostgreSQL, and I can complete this task.

Budget: 2999 UAH Deadline: 1 day

Hello.

I have relevant experience working with Next.js / React, Supabase / PostgreSQL, API integrations, forms, analytics, and incremental improvements of existing products without rewriting from scratch. This format of work is exactly what I am comfortable with: first, a brief technical review, then a clear plan for improvements divided into frontend, backend, database, integrations, and risks.

I understand that you already have a partially finished product, so at the first stage, it makes sense not to touch production and not to request access to private data, but to conduct a careful technical review through staging / branch / PR and prepare a phased assessment.

Duration: 6-10 hours
Format: fixed per stage
Rate: $40/hour

Budget: 26900 UAH Deadline: 29 days

Good day! My name is Valentin, and I represent Arctic Web Agency. We are a team that specializes in creating modern and effective solutions for businesses. I can provide examples of our similar work in personal messages. We are ready to take your project to work!

Sincerely,
Arctic Web Team
Freelancehunt

Budget: 2000 UAH Deadline: 1 day

Hello! I have experience with Next.js/React and Supabase/PostgreSQL, and I have worked with existing projects without rewriting from scratch. I am ready to conduct a technical review of the project (analysis of architecture, database, API, analytics) and provide a step-by-step plan for improvements with an assessment of timelines, budget, and risks. The initial review period is 1–2 days. Work will be done through staging/branch/PR, payment can be hourly or per stage. I can start immediately after gaining access to the repository.

Budget: 1000 UAH Deadline: 1 day

Hello!

I have experience working with Next.js, React, Supabase/PostgreSQL, and enhancing existing projects.

Implementation plan: I will conduct a technical review of the current project, assess the architecture, database, frontend/backend tasks, risks, timelines, and prepare a step-by-step plan for improvements.

I am ready to start with the audit and discuss the details in private messages.

Budget: 1100 UAH Deadline: 1 day

Hello! I have done exactly this type of task profile - Next.js/React + Supabase/PostgreSQL, refining live projects with external integrations. I am ready to start with a technical review, as you suggested. It will take 1–2 days for a structural analysis after gaining access to the repo. I am ready to begin immediately after receiving access to the repository.

Budget: 2000 UAH Deadline: 3 days

Hello! I see the task: not to write from scratch, but to enter the existing WatchGenius on Next.js plus Supabase and gradually refine the commercial functions, offers and prices, the Seller Offers block, correct Buy and external links, the leads and CRM layer, Get Quote, Price Alert, Watchlist forms, analytics events, and the enhancement of the AI chat as an assistant for choosing watches.

I fully agree with the format you described: staging, branches, pull requests, without rewriting and without production access at the start. This is the right approach to someone else's code.

As the first step, I would conduct a technical analysis: I will go through the Next.js architecture and the Supabase schema, see where the offers and prices currently reside, how the forms and integrations are structured, and provide a plan in terms of frontend and backend, what changes are needed in the database, what risks I see in the current implementation, and a phased timeline estimate. For the AI chat, I will separately look at the current OpenAI integration; usually, there you can enhance the suggestions for model selection by structuring the context from your own catalog so that the responses rely on real data rather than general phrases.

From experience, I work with Next.js and React, closely with PostgreSQL, with Supabase as a managed wrapper over Postgres, and with OpenAI integrations in production. I work with someone else's code regularly, through branches and pull requests.

I am ready to start with a short technical review. I estimate a couple of days for the initial analysis of the architecture and plan, then we proceed step by step. The payment format is up to your choice; a fixed fee per stage for clearly defined tasks is more convenient. Please let me know if there is currently access to the code or staging for analysis, and which stage is a priority for you, offers and prices or the CRM layer?

Budget: 2000 UAH Deadline: 1 day

Hello.

I have experience working with Next.js, React, PostgreSQL, and projects on Supabase, including improving existing commercial products without rewriting the architecture from scratch.

I am ready to start familiarizing myself with the project soon.

Budget: 20000 UAH Deadline: 20 days

Hello.
I am a senior fullstack developer with over 10 years of experience.
For 6 years, I worked on the online taxi project iqtaxi, where I created the project from scratch and brought it to operate in a competitive market.
For the last three years, I worked at the delivery company qwqer.eu and the hypermarket manna.
My answers to the questions:
1. I have experience in writing services in nodejs. I have experience in React. I have worked with MySQL, PostgreSQL, ClickHouse.
2. There is no exactly similar project. I have experience in jewelry as a catalog of items and generally a trading platform, I have experience in analytics (I did this for the hypermarket), I have experience in AI.
3. Yes, I am very good at working with someone else's code, studying its architecture, and making conclusions.
4. -- (no idea how).
5. One to two working days. One for analysis, the second for writing the description.
6. I work hourly at $20/hour.
7. Starting from Monday. Expand

Budget: 1111 UAH Deadline: 1 day

Hello.

I can implement the task. I have extensive experience with Next.js and Supabase/PostgreSQL. The timelines and costs are approximate - after discussing the details. I will provide examples in private messages. I regularly work with existing code. I am ready to start with a brief review of the code. The rest will be discussed after going over the details.
Feel free to write, I will do everything quickly and efficiently.

Budget: 1000 UAH Deadline: 10 days

Hello, full stack development with the Nest + Node stack, has experience in adding functionality to an existing project, adding form pages and linking them to the current Supabase database. +- experience with react/next 3.5-4
2. https://shukayu.com.ua/ - project on next from scratch, project for adding functionality - https://freelancehunt.com/project/publichni-formi-public-forms-lishe-gotovi/1563084.html
3. Yes
4. Yes
5. Need to discuss each point more, looks like +- 5 days of work
6. Hourly rate $13
7. Ready to start immediately.

Budget: 1000 UAH Deadline: 10 days

Good afternoon,
I work with Next.js, Postgres.
I am ready to make improvements.

Budget: 2000 UAH Deadline: 1 day

Hello!

I am ready to take on the WatchGenius project — message me privately, and we will discuss the details!

I am familiar with the stack, have experience with Next.js / Supabase, and I constantly work with other people's code. No rewriting from scratch — only targeted refinements through staging / PR.

Feel free to reach out!

Budget: 1000 UAH Deadline: 1 day

Good day. I am an individual developer with over 4 years of experience in Full-stack development, architecture automation, and AI service integration on Next.js and Supabase. I work officially through a sole proprietorship, ensuring direct transparent communication without intermediaries, and I am ready to conduct the first technical analysis of your platform in 12–16 hours of pure time. I will independently analyze the structure of your PostgreSQL tables, outline tasks for the frontend and backend regarding the external offers block and watchlist, identify hidden risks in the current implementation, and set up a stable CRM layer for collecting applications. I prefer a payment format in the form of fixed amounts for completed development stages, and my approach to building clean systems is presented here: 3magency.co, https://vilors.studio/.

Budget: 1000 UAH Deadline: 1 day

Hello. Our small team has been engaged in designing complex web interfaces, optimizing databases, and integrating artificial intelligence into existing business systems for over 4 years. The WatchGenius project fully aligns with our profile, so we are ready to start with a brief technical introduction to provide you with a clear plan for expanding the catalog features, pricing display logic, and CSV/JSON import within two days. We guarantee isolated work through staging and pull requests, reliably refining the lead generation logic and improving the AI assistant's model selection without destructively impacting the current layout. You can familiarize yourself with the level of our technical autonomy and code quality through the portfolio links: freshagro.com.ua, farfieworldwide.com, rivnekolo.com.

Budget: 5000 UAH Deadline: 3 days

Good day. My colleague and I have been specializing in refactoring legacy code and scaling e-commerce systems on React and PostgreSQL for over 4 years, so we would be happy to contribute to the development of your luxury watch analytics platform. We will conduct a thorough free technical review, detail the necessary changes in the Supabase tables for integrating the CRM layer of leads, set up the Get Quote and Price Alert forms, and also write custom GA4/GTM analytics events without risks to the live production. We will need up to 48 hours for the initial study of the repository through a secure branch, after which we will create a risk map and agree on a payment format that suits you, either fixed or hourly. Examples of our engineering expertise are presented in the portfolio: drkukharevich.rivne.ua, crave-agency.com.ua, jk-solution.com.ua.

Budget: 10000 UAH Deadline: 5 days

Hello. My partner (designer + full-stack) and I have over 4 years of experience in developing commercial platforms on Next.js and Supabase, and we are ready to take on your WatchGenius project for a technical audit and phased refinement. Without rewriting the code from scratch, we will carefully analyze the current PostgreSQL database architecture on Staging, set up the correct relational links for the Seller Offers block, optimize transitions through external Buy links, and expand the OpenAI API context for more accurate AI chat responses. For the initial technical review and preparation of a step-by-step plan for frontend/backend tasks, we will need 1-2 days, and we are ready to fix the payment separately for each completed stage. Our approach to clean data work is reflected in our portfolio: hyperfi.tech, espressolab.com.ua, hudi.com.ua.

Budget: 2000 UAH Deadline: 2 days

Good day, I have worked with everything from the stack. There are similar projects.
We can start only with the first stage - project audit, recommendations.
I can start today, it's hard to say about the time, I think a couple of days.
Payment for the stage.

Budget: 20000 UAH Deadline: 30 days

Hello! As a Full-Stack developer, I specialize in working with the Next.js, React, PostgreSQL/Supabase, Vercel stack, and AI integration (OpenAI API). In my free time, I develop my own micro SaaS.

I have extensive experience connecting to existing commercial projects, so the principle of "working with current code without rewriting everything from scratch" is my standard approach. I always work through a secure workflow: forks/branches, staging environments, and Pull Requests.

Below are my answers to your questions for the first stage:

Experience with Next.js and Supabase/PostgreSQL: I work with this stack daily. I design relational databases, optimize complex SQL queries, set up Row Level Security (RLS) in Supabase, edge functions, and server components in Next.js.

Examples of similar projects: I have in my portfolio the development of CRM systems, analytical services (with price charts, lead forms, payment gateway integration, and tracking external links), as well as launching turnkey mobile applications for businesses. I also have experience setting up AI assistants that work with databases via RAG or function calling.

Working with existing code: Yes, this is a regular practice. I can quickly read someone else's code, understand the architecture, fix legacy issues, and carefully implement new features without compromising system stability. I use AI for this work only where possible.

Willingness for Technical Review: Absolutely ready.

Time for the first review: For a detailed technical review (architecture, database schema, risk identification, and step-by-step planning), I will need 24–48 hours after familiarizing myself with the repository or structure.

Payment format: I prefer a fixed payment format for each specific stage after agreeing on the task decomposition.

When I can start: I am ready to join the first stage of analysis today. Expand

Budget: 24000 UAH Deadline: 7 days

Good day!

I will respond point by point:

1. I have already written several projects on Next.js and have worked with existing codebases. I have also worked with Supabase — for example, momicro.com and seetruth.app.
2. web.rstays.com is technically very similar in structure.
3. Yes, working with someone else's code without rewriting it is standard practice.
4. I am ready to start with a technical analysis.
5. About a day for the first analysis.
6. Fixed payment by stages.
7. I can start at any time.

Write to me, we will discuss everything.

Sincerely, Buglak Alexey Expand

Budget: 27000 UAH Deadline: 10 days

Hello! I will complete your task quickly and efficiently. I work with NEXT.js.

My recent works
https://indexfast.pp.ua - fast site indexing
https://mamamia.pp.ua - online store
https://programist.pp.ua/ua/portfolio/ - portfolio of works
https://monitortest.pp.ua - monitor testing
https://keytest.pp.ua - keyboard testing

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Message me, I will start working today. I look forward to collaborating with you! Expand

Budget: 4000 UAH Deadline: 1 day

Hello! I am ready to deliver a turnkey solution. I guarantee quality and promptness of work.

I am skilled at working with existing code, with over 3 years of experience in the listed stack. I am ready to start with a technical review. I can begin today, and I can do the first analysis today.

Feel free to reach out, I would be happy to collaborate!

Budget: 1000 UAH Deadline: 7 days

Good day!

I have experience in this stack and would be happy to help with your project.

Budget: 2000 UAH Deadline: 3 days

Hello! Your project looks very interesting. I am ready to start working immediately and ensure high quality.

Budget: 12600 UAH Deadline: 5 days

I reviewed the specifications, and I will take it on. I work with Python + Claude/OpenAI API, RAG on pgvector. I will complete the integration with tests in 5 days and show examples of similar work. If it's convenient, we can start with a small POC, and then we will agree on the final estimate.

Budget: 2000 UAH Deadline: 1 day

WatchGenius - an interesting project with many integrations under the hood. You described the first stage very clearly: a technical review without access to production, a plan for improvements, and separate assessments for the front and back end. This is the right approach.

I have worked with someone else's Next.js + Supabase - a booking platform, migrating from Firebase. The initial code review took 4-6 hours, then it proceeded in stages. Your list of tasks (offers, CRM layer, forms, analytics, AI chat) is a typical set for a mature project where careful integration is needed, not disruption.

I am ready to start with the review. The analysis without access to data will take 1-2 working days: database schema, API routes, component structure, and what is already in place for the AI chat. Then a plan with breakdowns by branches and estimates.

Regarding payment - hourly for the review, then a fixed rate for the stage. When would it be convenient to have a 15-20 minute call so you can ask a couple of clarifying questions?

Budget: 2000 UAH Deadline: 1 day

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