Project: Redesign and development of a fintech product (React + Node.js)

Budget: 100 PLN Deadline: 1 day

Good day.
1. I write in React, TypeScript, Node.js, and PostgreSQL, I am very familiar with Material UI, so I am ready to take the current system as a basis and redesign the backend with the frontend.
2. I have not had projects with a complete redesign, but I often had to rewrite old logic to meet new requirements, understand someone else's code, and build a completely new modern UI; I will send examples of several relevant works in private messages.
3. I suggest discussing my rate in private messages after evaluating the current product, I am fully ready for long-term cooperation, project support after launch, and signing a contract, I am located in Ukraine.

Budget: 200 PLN Deadline: 1 day

Hello.

I am a NodeJS developer. I am ready to take on the task. Write to me, we will discuss.

Budget: 100 PLN Deadline: 1 day

Hello. I have been working with React/Node.js for over 9 years. I am ready for collaboration.

Budget: 2000 PLN Deadline: 7 days

Hello, I worked on the redesign of a CRM system for a financial company with the tag:7748 - completely overhauled the backend architecture on Node.js + PostgreSQL, created a new React frontend with TypeScript, result: a 40% increase in performance and a 60% improvement in UX.

I am interested in learning more about your current logic for calculations and percentages - do you use complex financial formulas or are these standard operations? I would also like to understand which specific parts of the backend require the most changes?

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

Budget: 2000 PLN Deadline: 20 days

Hello! I have reviewed the task, I have experience with React + TypeScript, MUI, and Node.js (Express, PostgreSQL, Prisma). I have worked on redesigns and product relaunches — when it is necessary to redo the logic and update the front end without developing from scratch. I can take on both frontend and backend improvements and API. I am ready for long-term work and teamwork. I can show relevant projects and discuss details on a call.

Budget: 100 PLN Deadline: 5 days

Hello, I have 4 years of experience in developing React + Node (Express) projects. I have worked on large CRM panels with databases. I also have experience in reworking existing projects like yours. I would be happy to join your team. Write to me and we will discuss the details.

Budget: 75 PLN Deadline: 1 day

Hello, I have relevant experience as a FullStack developer.
Write to me privately.
I will be happy to help you!

Budget: 2000 PLN Deadline: 20 days

Hello, for over 4 years, we have been a small team developing turnkey web solutions and have significant experience working with the React/Node.js stack to create financial and analytical tools. We will build the logical structure of your updated backend, implement precise algorithms for interest calculation, and deliver modern layouts that meet the highest UX standards of 2026. Our experience of over 4 years allows us to guarantee a high product culture, independence in making technical decisions, and complete readiness for long-term support and development of your product. Be sure to check out our completed projects: freshagro.com.ua, farfieworldwide.com, rivnekolo.com.

Budget: 100 PLN Deadline: 1 day

Good day, my colleague and I have been professionally engaged in technical design and the development of scalable SaaS platforms for over 4 years, so we will help you transform the current product into a modern premium-level solution. We will implement a frontend audit of the existing system for optimal API redesign, set up complex business logic on the backend, and create a responsive interface using Material UI with clean architecture in TypeScript. Our experience of over 4 years is confirmed by successful cases of refactoring and visual updates of projects, where we became part of the team on a long-term basis, check our quality of execution: drkukharevich.rivne.ua, crave-agency.com.ua, jk-solution.com.ua.

Budget: 80 PLN Deadline: 1 day

Hello, my partner (designer + full-stack) and I have been specializing in deep redesign and reassembly of complex products on the React, Node.js, and PostgreSQL stack for over 4 years, so we can professionally implement the relaunch of your project. We will design a premium UI in Figma, taking into account modern trends for 2025-2026, implement technically flawless calculation logic through Prisma, and ensure smooth integration with Firebase Auth. Our experience of over 4 years allows us to effectively refactor your code while preserving the working logic and significantly improving the UX and performance of the system. Take a look at our technical works: hyperfi.tech, espressolab.com.ua, hudi.com.ua.

Budget: 2000 PLN Deadline: 5 days

1 - 2. Experience with React / TypeScript / Node.js / PostgreSQL 4 years - total in web development - 6 years
3. Examples of redesign projects + React using MUI will be provided in personal correspondence
4. Rate from $20/hour, I take on the task after agreeing on the estimate and expectations
5. I am specifically interested in long-term cooperation, I have experience in modernizing legacy codebases, more details about the services at https://toyless.dev/services
I would be happy to discuss the details!

Budget: 9000 PLN Deadline: 45 days

Hello, Daniel!

Regarding the task: new UI + redesign of calculation logic and API with reuse of existing code. A similar stack was closed on cyanship.com: Next.js + Nest.js + Prisma/Postgres, auth, Stripe billing, AI chat. Production, can be tested.

React + TS and Node + Express + Prisma + Postgres is the basic stack. I worked with MUI on early projects, now I more often use Tailwind, but the component model is familiar, speed will not suffer. I have done fintech calculations.

From Ukraine, UTC+2. Ready for long-term work and calls.

Rate $18/hour. After the agreed estimate, we can fix it by stages.
To estimate more accurately: repo or screenshots of the current UI and a list of key formulas in the backend that are changing?

Budget: 75 PLN Deadline: 1 day

The stack is familiar, the task is clear - not to rewrite from scratch, but to thoughtfully rebuild with improvements in architecture and UI with agreement during the work process.

I regularly use React + TypeScript + MUI, Node.js + Express + PostgreSQL is the working stack, I am familiar with Prisma, and I have also integrated Firebase Auth.

I have experience in redesigns - portfolio with 70+ projects: blove-studio.com/projects, where you can see the work.

Rate is $20/hour, I am open to hourly or milestones after assessment.

I am ready for long-term cooperation, this is exactly the format I prefer.

I am available for a call - please write, and we will agree on a time. Expand

Budget: 3000 PLN Deadline: 10 days

Hello! I will complete your task quickly and efficiently. I work with React + Node.js Fullstack. I am ready for productive work.

My recent works
https://florist-map.vercel.app
https://indexfast.pp.ua
https://monitortest.pp.ua
https://mamamia.pp.ua

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be happy to collaborate with you!

Budget: 10000 PLN Deadline: 30 days

Hello! I am a Full-Stack developer with extensive experience in development using various stacks. I have experience in both development and support and redesign of products. Like you, I am also interested in long-term cooperation, so I would be very happy to be part of your team. The rate is $20. I can send examples of my work in private messages. Write to me, we will discuss everything and immediately start working.

Budget: 75 PLN Deadline: 1 day

Hello!
I read the task carefully, it is clear.
Regarding the stack and experience:
Fullstack 5+ years: PHP/Laravel, Node.js/NestJS, Vue 3, MySQL/PostgreSQL, Docker
react/TypeScript/MUI, projects: krakencasino.net, tickets.pt
node.js + Express + Prisma working stack, quick switching
Rate: $20/hour. Ready to discuss a fixed rate based on milestones after getting acquainted with the project.
Long-term collaboration is interesting if we work well together in the first stage.
Ready for a call.

Budget: 75 PLN Deadline: 1 day

Hello, I am ready to join you. I wrote a project where I took full responsibility for the logic of CRM, accounting, sales, and bookkeeping, submitted a report weekly for the client who only set the direction of the project, so there will be no questions regarding responsibility and independence on my part.

Here is my LinkedIn for you to get to know me - https://www.linkedin.com/in/andriy-melnuk-45482024b

Hourly rate as a full-stack React + Node = $17

One of the public projects in testing mode - https://hochu-next.vercel.app

I do not consider offers with a fixed work schedule; office hours should be agreed upon.

Open to long-term cooperation. Expand

Budget: 100 PLN Deadline: 1 day

Hello, experience in React / TypeScript / MUI - over 6 years. Also have experience with Node.js / Nest.js / Express / PostgreSQL / Prisma. Projects - https://mcarrow.online/portfolio. Rate $20-35/hour, available. Independence, ability to think, experience in redesigns and reworking projects are also present. I would be happy to collaborate.

Budget: 1850 PLN Deadline: 14 days

Hello Daniel
I have proper experience with Node.js and I can help redesign your frontend (with help from my associate), together with your backend. I have built typescript projects before( if you'd want, during the call I can show you examples), and I am willing to collaborate in the long run with you, if you are satisfied, with the quality of work, that I bring to the table.
Kindly inbox me with your milestones, for me to accurately approximate the amount.

Budget: 12340 PLN Deadline: 7 days

Good day!
Fullstack with the required stack — React, TypeScript, Node.js, PostgreSQL, Prisma. I have done redesigns and reworks of existing projects, not just greenfield.
Relevant: https://web.rstays.com — complete redesign and reconstruction of the booking service, I wrote the backend from scratch and half of the frontend. Similar format of work.
Rate — $20/hour. Ready for long-term cooperation, calls, and agreements.
https://ai-desk.ai / https://momicro.com
GitHub: https://github.com/axbuglak
Write to me, we will agree on a call.
Sincerely, Buglak Oleksiy

Budget: 777 PLN Deadline: 77 days

✌️ Hello. Interesting project, I would gladly add it to my portfolio)
• I am a senior fullstack developer with 7+ years of experience. I have worked both independently on online stores and as part of a team on large projects in the fields of gambling, cryptocurrency, SaaS, and B2B platforms.
👉 The task is clear — redesign of a financial product using React and Node.js
🔥 The output — a modern UI and updated backend without headaches
Rate — $20/hour, deadlines — we will discuss after evaluation
I see no reason why our collaboration wouldn't work out 🤝

👉 Recent projects: billionbahis.com, isolar.com.ua, mevis.ua, take-transfer.com

Budget: 2000 PLN Deadline: 7 days

Hello!

My name is Evgeny, and I have been professionally engaged in the development of mobile applications, websites, web services, and web applications for 7 years.

*The cost mentioned is for 1 hour of work. To provide a more detailed price, I would like to connect/call and discuss the details.

- You can review my portfolio, feedback, and awards in my profile.

Why should you choose me?
- I have taken 1st and 2nd places in international championships and competitions in the IT field
- I have verified video testimonials and letters of appreciation
- I am always available, honest, and reasonable
- I work under a contract
- I lead my own development team

I would be happy to talk to you in more detail about the project. Expand

Budget: 2000 PLN Deadline: 14 days

You have a relaunch of a fintech product with a UI replacement and backend adjustments, not just layout. I saw that part of the code will remain - this speeds things up. I did a similar redesign for an installment service: I replaced the old admin React with a new one using MUI, rewrote the calculation modules in Node.js, leaving only the data model. The client received an interface that partners are not ashamed to enter. There were also percentages and complex mathematics. How is your API currently organized - REST or something else? This will affect how much of the backend will actually be touched.

Budget: 75 PLN Deadline: 1 day

I work with React + TypeScript + MUI and Node.js + Express + PostgreSQL — the stack matches completely. I have done redesigns with partial code reuse, I understand the difference between "rewrite everything" and "reassemble smartly." I am ready for a long-term format, not looking for one-time projects.

Rate — $18–20/hour, milestone format is acceptable.

What is the scale of the product now — how many endpoints and screens approximately?