Creation of an online currency exchange services catalog

Budget: 27000 UAH Deadline: 40 days

Good day.

I have experience in developing marketplaces, catalogs, and B2B aggregators (including price comparison systems and API integrations). I have worked with high-load catalogs and SEO structures for scaling.

How I see the architecture

Backend: Laravel / NestJS (depends on the load)
Frontend: Next.js (SSR for SEO)
DB: PostgreSQL
Caching: Redis
Queues: Redis queues / BullMQ
Parsing: separate service (worker)
Infrastructure: Docker + VPS / Hetzner / AWS

The architecture is modular, with scalability options.

MVP (2–4 weeks)

✔ exchange office catalog
✔ exchange directions
✔ rate table with filters
✔ basic admin panel
✔ API integration (or 1–2 parsers)
✔ SEO structure + sitemap

Next stage

– feedback and rating system
– anti-spam and anti-fraud
– advanced filters
– multilingual
– partner system

🔹 Approach to rates

I recommend a hybrid model:

API of partners (priority)

fallback through parsing

data validation + anomaly protection

caching results

Work format: step-by-step, with demonstration of each sprint.
Estimated budget for MVP: 3000 €
Deadline: 3–6 weeks.

I am ready to detail the technical architecture after clarifying the requirements. Expand

Budget: 27000 UAH Deadline: 90 days

📌Hello.👋
⭐️My name is Andrey.
⭐️My work experience: 12 years+

• ➡️I can show works specifically on the exchange theme
• 🎨Portfolio: Freelancehunt
• ✅Work rating on Behance (over 500,000 views)
• 💼More works here: Dribbble

Budget: 20000 UAH Deadline: 10 days

Good day, I would be happy to take on this task and discuss all the details of implementation. I am a full-stack developer with more than 3 years of experience, specializing in creating modern and responsive web applications using React and Next.js, NestJS, Express, and developing mobile applications with React Native, Expo. I also have a team of developers with extensive experience. Recent works:
https://hashtech.dev/,
https://rentalviv.com/
https://similiastudio.com/en
https://izigram.com/,
https://bondaruk.vercel.app/
https://fasqon.vercel.app/,
https://clining-ten.vercel.app/,
https://yoga-olive-omega.vercel.app/

I can demonstrate more works in messages. Expand

Budget: 20000 UAH Deadline: 30 days

Hello! I propose development using the stack Next.js + Prisma + PostgreSQL + Redis. This is the ideal set for a project where speed and relevance of rates are the product itself.

Architecture and stack:
- Frontend: Next.js (App Router) for instant loading and perfect SEO.
- Backend: Node.js / Server Actions for processing logic.
- Database: PostgreSQL (storing services and reviews) + Redis (super-fast caching of currency rates to avoid overloading the main database).
- Data Integration: I suggest a hybrid approach. Priority is given to partner APIs (via JSON/XML feeds), for services without APIs - writing custom parsers. Mandatory data validation: automatic disconnection of the direction if the rate deviates from the market by a percentage.

MVP vision (first 4 weeks):
In the first month, we launch the functional core:
- Database: Structure of exchanges, directions, and currencies.
- Comparison table: Filtering by currency pairs and basic sorting by rate.
- Automation: Module for obtaining rates for the top 10 directions via API.
- SEO framework: Dynamic URLs for main pairs (e.g. /exchange-usd-to-usdt).

Next stages: feedback system, advanced filters (limits, commissions), personal accounts for exchanges.

My relevant cases:
I suggest looking at the architecture of my project ReCore: recore-x66k.vercel.app.
It implements:
Complex filtering and search logic.
Working with real data and quick interface updates.
An admin panel with change logging.

Work format and conditions:
Team: I work as a Full-stack developer, ensuring the integrity of the architecture and fast communication.

MVP cost: $2,500 – $4,000 (depending on the number of integrations at the start).
MVP timeline: 4 weeks. Full version — 8–12 weeks.
Security: Setting up Rate Limiting, DDoS protection at the Cloudflare level, and anti-spam filters for reviews. Expand

Budget: 27000 UAH Deadline: 30 days

An interesting project — essentially, an aggregator with real-time data, complex filtering, and SEO architecture for thousands of exchange directions is needed. I have experience in developing catalogs and marketplaces with price comparison, filtering by dozens of parameters, and high load — this is my specialization.

Here’s how I see the MVP stack:

Backend: Laravel (PHP)
Frontend: Next.js (React) — SSR for SEO, fast rendering of exchange rate tables
Database: PostgreSQL (main) + Redis (caching rates, sessions)
Obtaining rates: hybrid approach — partner APIs where available, parsing where not, fallback to manual entry. Data validation: reject rates with deviation >X% from the median

MVP in 3–4 weeks:

Catalog of exchangers (cards, basic rating, statuses)
Comparison table of rates with filters (currency pair, payment method)
SEO pages for each exchange direction (auto-generation)
Basic admin panel (CRUD for exchangers, rates, moderation)
Parser/API connector for 10–20 exchangers

Next steps: reviews with moderation, advanced analytics, rate charts, multilingual support, API for partners, exchange calculator, notifications for favorable rates.

Format: I work solo, daily updates, code in your GitHub repo. Estimated cost of MVP — $3,000–5,000, timeline — 3–4 weeks. Full version — $8,000–12,000, 2–3 months.

Let’s have a 30-minute call — I will show the architectural diagram and we will discuss MVP priorities. Expand

Budget: 20000 UAH Deadline: 1 day

Hello, Boris.

For a project of this type, architecture in Golang will ensure minimal Time-to-Interactive and high resilience to peak loads (for example, during sharp fluctuations in BTC rates).

1. Technology Stack (Performance-First)

* Backend: Golang (Gin or Fiber). Using Go will allow collecting data from hundreds of exchange APIs in parallel, without blocking the main thread.
* Frontend: Next.js (React). Full SSR for SEO indexing of each currency pair.
* Database: PostgreSQL (users, reviews, settings) + Redis (In-memory storage for instant delivery of current rates).
* Message Queues: NATS or RabbitMQ for the orderly updating of data from partners.

2. Data Acquisition: Hybrid Model + Validation

I propose a "Smart Scraper" system:

1. Standard XML/JSON import: Implementation of a parser that adapts to partner formats (analogous to `info.xml` in BestChange).
2. Worker Pool (Go): Separate workers in Go that poll exchanges every 30-60 seconds.
3. Data Integrity: An automatic system for filtering out "junk" data. If the price deviates from the market (Binance/CoinMarketCap API) by a specified %, the rate does not enter the output until moderation.

3. Development Plan (MVP in 4 weeks)

Stage 1: Core and Synchronization (Weeks 1-2)

* Development of an engine in Go for collecting and validating rates.
* Database structure and caching in Redis.
* API for the frontend.

Stage 2: Interface and SEO (Weeks 3-4)

* Next.js application: rate tables with sorting and filters (by limits, payment type).
* Generation of SEO pages for pairs (for example, `eth-to-visa-uah`).
* Basic admin panel: management of exchange listings and moderation of reviews.

Stage 3: Scaling (After MVP)

* A cabinet system for exchange owners.
* Advanced analytics and charts (TradingView-like).
* Telegram bot for notifications about "target rates".

4. Work Format

* Team: Me
* MVP Deadline: 4 weeks to a working prototype in production.
* Security: Protection against SQL injections, Rate-limiting at the API level, anti-spam system in reviews.

We can discuss details and ask questions. Expand

Budget: 20000 UAH Deadline: 50 days

Good day, Boris!

I am ready to implement an online currency exchange services catalog, fast, convenient, and SEO-friendly, logically similar to https://www.bestchange.com/.

🔹 Relevant cases

Marketplace catalog of financial services (rates, rankings, reviews, filters)

Price comparison for goods and services (similar to an aggregator)

Aggregator websites with dynamic data updates via API

🔹 Implementation options and stack
1️⃣ WordPress + WooCommerce / ACF / Custom Post Types

Quick MVP implementation

Simple admin interface for adding exchangers, rates, and reviews

SEO-friendly URL, sitemap, basic optimization

Suitable if the budget is limited and the timeline is short

MVP budget: from 1,200 USD
Full version: from 2,000 USD

2️⃣ Custom solution (Next.js + NestJS + PostgreSQL + Redis)

Maximum speed and scalability

Flexible system of filters, ratings, caching rates

Easy API integration and protection against "broken" data

SEO: SSR/SSG, custom sitemap, control of URLs and meta-tags

Suitable for complex integrations and high loads

MVP budget: from 1,800 USD
Full version: from 2,500–3,000 USD

🔹 MVP (2–4 weeks)

Registration/display of exchangers

Service cards, ratings, statuses

Tables of rates with basic filters (currency, direction)

Simple admin panel: adding/editing exchangers and rates, moderating reviews

Basic SEO functions: URL, sitemap, meta-tags

🔹 Approach to obtaining rates

Hybrid: partner APIs + parsing + data validation

Caching for fast loading of rate tables

🔹 Work format

Solo development, I can involve a UX/UI designer if needed

Daily short reports, discussion of stages via Jira / Trello / Notion

Testing on staging before production

🔹 Timelines

MVP: 2–4 weeks

Full version: 6–8 weeks

I am ready to start after clarifying the details of integrations and the volume of data, and to propose a phased plan with a clear division of functions and timelines for process control. Expand

Budget: 25000 UAH Deadline: 7 days

Hello 👋 I have experience in developing marketplaces, catalogs, and services with dynamic data (aggregators, price comparison, financial services, admin panels). I understand the specifics of exchange services: frequent updates of rates, a large number of directions, filtering, SEO scaling, and protection against incorrect data.

Budget: 26990 UAH Deadline: 29 days

Good day!
My name is Valentin, and I represent Arctic Web Agency. We are a team of experienced web developers who specialize in creating modern and effective web 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: 27000 UAH Deadline: 30 days

Hello!

I will create a modern currency exchange aggregator website from scratch using Laravel + Vue.js: a directory of exchange offices with cards, ratings, and statuses, comparison of rates with filters and sorting, an admin panel for managing exchange offices, rates, directions, and moderating reviews, integration of data via API or a hybrid approach, speed 95+, SEO-friendly structure, and full responsiveness.

Laravel + Vue.js is the best choice for such an aggregator: high data processing speed, flexible architecture for scaling, reliable security, and easy addition of new directions without rewriting code.

We have extensive experience in developing web interfaces and design, so you will receive a fast, user-friendly, and reliable website.

Please write in private messages for detailed discussion about the project and to provide information regarding the timeline and cost of such a project!

Best regards,
Mykola Expand

Budget: 27000 UAH Deadline: 30 days

Hello.

I have experience in creating catalogs and aggregators with API integrations and real-time data comparison.

I offer the stack:

Backend: Laravel
Frontend: Next.js (SEO-friendly)
DB: PostgreSQL
Cache: Redis

MVP in 2–4 weeks:

• exchange office catalog
• rates table with filters
• admin panel
• API integration
• basic SEO

Receiving rates:

I recommend a hybrid — API + control parsers + validation.

MVP budget: from €2500
I work alone or with a frontend developer (if needed).

I am ready to discuss the details and propose an optimal launch plan. Expand

Budget: 27000 UAH Deadline: 30 days

Good evening. I can do this on WordPress or OpenCart. I suggest making an MVP with the ability to manually enter data from the admin panel and a showcase.

Budget: 20000 UAH Deadline: 10 days

Good day, I have 7 years of experience in development. The main focus is fintech. I have written 5 cryptocurrency exchanges that are on bestchange. Stack - Docker, Symfony, Next, Pusher. If you are interested, we can discuss in more detail.

Budget: 27000 UAH Deadline: 30 days

Good day!

I am ready to complete your project. I work with web development and design, have practical experience and a portfolio.

I have worked with clients from Ukraine and Europe, adhere to deadlines, and am always in touch.

I am ready to discuss the details and propose an optimal solution. I can start as soon as possible.

Budget: 20000 UAH Deadline: 30 days

Hello!
I am ready to implement an exchange aggregator on Django (similar to BestChange).

Stack: Django + DRF, PostgreSQL, Redis (cache), Celery (rate updates), Docker.
SEO-friendly URL, sitemap, caching, security, and anti-spam — all included from the start.

MVP (2–4 weeks):
catalog of exchanges (cards, statuses, directions);
comparison table of rates with filters and sorting;
ratings and reviews;
admin panel (management of rates, directions, moderation);
integration of rates (API + data validation).

After MVP:
SEO pages for combinations of directions/filters;
enhanced rating and trust system;
connection of new APIs/parsing;
optimization for high traffic (caching, scaling);
personal accounts for partners (if needed).
Approach to rates: hybrid — API as the base + parsing fallback, with anomaly checking and change logging.

I work solo, sprints of 1 week.
Exact cost and timelines — after a brief clarification of the technical specifications.

I am ready to discuss the details. Expand

Budget: 21000 UAH Deadline: 21 days

Good evening. I present the Nexus Core team. We have reviewed your request for the development of an exchange service aggregator. Our team specializes in creating technical infrastructure for media buying and financial verticals, so we have the necessary expertise to build a fast and secure rate comparison system.

To ensure maximum speed and SEO effectiveness, we propose the following stack:
Frontend: Next.js 14 (App Router), TypeScript, and Tailwind CSS for instant loading and responsiveness. The use of TanStack Table will allow us to create productive rate tables with a large amount of data.
Backend: Node.js (Fastify/Express) and Prisma ORM for high request processing speed.
Database and Caching: PostgreSQL as the main database and mandatory implementation of Redis for caching rates, which is critically important for reducing load during frequent data updates.
Data Integration: We offer a hybrid approach — prioritizing REST APIs from partners for accuracy, and using Playwright/Puppeteer for parsing sources that do not have an open API. Data updates are configured through Cron jobs with an interval of 5–15 minutes.
DevOps: Containerization via Docker and deployment on VPS (Hetzner/AWS) for stable operation under load.

Regarding the development stages:
MVP (3–4 weeks): Creation of a directory of exchanges, functionality for comparing rates (3–5 sources), a basic admin panel, and a complete SEO structure for pages. The cost of this stage starts from $5,000.
Phase 2: Implementation of a feedback system, ratings, moderation, and multilingual support.
Phase 3: Personal accounts, subscriptions for rate changes, and expanded analytics.

To provide a final proposal, please clarify a few technical points:
Do you have a ready design (Figma), or should the interface development based on the BestChange example be included in the first stage?
How many currency pairs and exchanges are planned to be supported at the start for calculating the parser's capacity?
Is integration of anti-fraud systems needed to filter bots in the feedback section?

We implement aggregator and automation system development cases under NDA, but we are ready to discuss our experience with similar data structures in private messages. The project will be handled by a team: a system architect, backend and frontend developers, as well as a QA engineer.
Write in private messages — we will clarify the details and provide a fixed cost with a breakdown by stages and agreed deadlines. Expand

Budget: 20001 UAH Deadline: 1 day

Good day, Boris.
I will help create a currency exchange website from design to publication.

During our personal conversation, I will explain how the development will be structured, what stages it will include, technical specifications, and everything else.

I suggest discussing all questions in personal messages.
Thank you, have a nice day.

Budget: 27000 UAH Deadline: 30 days

Hello.
I have familiarized myself with the task.
I will create a quality website with clean optimized code and modern design.
Write to me, we will discuss the project details!
----------------------------------
Private web developer. Experience – 10 years.
Design, layout, development of Wordpress websites.

Budget: 20000 UAH Deadline: 10 days

Good day, I am ready to perform. Write to me in private to discuss in more detail.

Budget: 22222 UAH Deadline: 22 days

Good day!

Recent works!

https://wall-master.artbud.pro/
https://www.cardanmash.com.ua/
http://floridagardendesigns.com/
https://sugacards.com/
https://advilion.com
http://axiomaplus.com.ua/
https://maxinstal.ch/
http://otpad.com.ua/
http://spectrum.net.ua/

Detailed discussion, advice, preferences, evaluation in personal discussions.

Sincerely, Vasily! Expand

Budget: 27000 UAH Deadline: 10 days

Hello! 👋
I have implemented such platforms, here is a case and a project on this exchange.
https://freelancehunt.com/showcase/work/synfx-cripto/1730848.html

https://freelancehunt.com/project/ux-ui-design-development-for-service-website/1583634.html

Please check my portfolio and confirm my expertise:
Freelancehunt

Budget: 20000 UAH Deadline: 1 day

Good day!
I have experience in developing catalogs/aggregators and projects with filters, ratings, SEO pages, and admin panels. I am ready to create a catalog of exchange services based on the logic of BestChange: service cards, directions, rate tables, filters/sorting, reviews, and moderation.
I am ready to discuss the work format, budget, and exact deadlines in private messages.

Budget: 27000 UAH Deadline: 30 days

Good day, Boris
Maybe I am writing too much, and you may not want to read it. However, for a quality project, this is very important....

First and foremost, it is necessary to design the database well. Because if there is a failure in it, consider that you will start losing money. It must be fast and support the storage of all data in the most compact size possible.

I see the following stages of work:
1. Database design
2. Obtaining exchange rates from donors. This can be parsing, connecting to an API, or exchanges can notify us of rate changes via Webhook. We need to discuss the optimal option. But no manual input should be allowed. This can only be an alternative just in case.
3. Once this is done, we can start creating a user site with a list of exchanges, ratings, reviews, rates, and other features.
4. When the user site is ready, we proceed to the admin panel. We will manage exchanges, moderation, and a dashboard with statistics. Referral statistics are mandatory (if you will redirect them to exchanges via your referral link).

Stack:
- Frontend Vue 3.5+ with a nice modern design
- Backend MySQL 8+, PHP 8.4+, Laravel 12+ (this will be an API), for caching Redis. It is essential to work with queues to avoid blocking the website's operation.

Thanks to the backend being an API, in the future, this will allow for easy integration of mobile applications into the system, if any.

We break all the work into stages and do it gradually. I suggest doing everything at once, but if you are considering an MVP, then we need to determine what you are willing to give up in the first stage. Reviews, ratings, or something else?

The work format is step-by-step. The collaboration format is long-term with further support and development of the project. We agree on the budget for each stage and work. We are in constant contact while the sun shines.

Write to me so I can tell you more about my vision for the project's implementation. I will be happy to collaborate. I look forward to your feedback. Expand