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  • Rating 348

Budget: 1000 USD Deadline: 15 days

Hello! I’m an experienced backend developer with strong expertise in Node.js + TypeScript, and hands-on experience working with Solana blockchain integrations (RPC, SPL tokens, and Jupiter API). I’ve also worked on Jito bundle transactions and caching strategies for performance optimization. I can deliver this test project with clean, well-documented code and a clear setup guide.
I have 6+ years of experience in backend and Web3 development.
My estimated rate is $25/hour (or $1500 for the full project).

Looking forward to collaborating!

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  • Rating 315

Budget: 1000 USD Deadline: 5 days

Good day!
https://github.com/kybarg
https://github.com/Den1258
We are a team of 2 developers. But for this task, I can recommend a colleague. We have extensive experience in developing infrastructure for terminal operations for cryptocurrency exchanges. My main focus is the terminal hardware, the terminal client application, and the UI for almost all services. My partner's area is backend, integration of exchanges, exchangers, and cryptocurrencies and tokens into our system. And he is the one you need for this task.
The main technologies we use are Node.js, Typescript, React, Mysql, Mongodb.

  • Projects 12
  • Rating -
  • Rating 1 074

Budget: 1000 USD Deadline: 111 days

Hello!
I have experience in commercial development using Node.js and TypeScript, particularly in creating backend services with blockchain integrations. I have worked with Solana RPC, SPL tokens, Jupiter API, and have a basic understanding of how Jito bundles work and the principles of transaction optimization in the Solana network.

I know how to build a structured backend with caching, error handling, and clean architecture, and I pay attention to the performance and stability of the service. In my work, I use a modern stack (TypeScript, Express/Fastify, Redis, Axios, Jest, etc.) and adhere to the principles of clear, tested code.

I am ready to complete a test task — I am confident that I can deliver a quality implementation with a clear structure and understandable documentation. I am also open to discussing the details of collaboration, deadlines, and costs — I am ready to adapt to the format of your team.

If needed, I can send examples of my work or links to my GitHub.
I would be happy to collaborate.

  • Projects 24
  • Rating 5.0
  • Rating 2 874

Budget: 1000 USD Deadline: 7 days

Hello! I have extensive experience in developing smart contracts and MEV bots, I am very interested in your project. I already have a ready bot that meets your requirements on Solana.

I try not to publish links and my bid here, I am ready to provide everything in private messages.

  • Projects 6
  • Rating 5.0
  • Rating 1 324

Budget: 980 USD Deadline: 3 days

Good day! I am ready to complete the test task. I have experience with Node.js and Solana, so I can start right away.

  • Projects 6
  • Rating 5.0
  • Rating 1 506

Budget: 1000 USD Deadline: 30 days

Good day!

I am interested in your project and I am ready to take on its execution. I have extensive experience in developing similar platforms and admin panels for them - I am happy to help.

And here are the works I am NOT ASHAMED OF -
1) Admin panels and CRM system modules - Behance

2) Telegram bot for registering new students + built-in admin panel
Behance

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  • Rating 704

Budget: 1000 USD Deadline: 7 days

Good day, more than 15 years in development, including the specified by you more than 7 years, 30 dollars per hour.

  • Projects 7
  • Rating 5.0
  • Rating 1 212

Budget: 1000 USD Deadline: 1 day

Hello 👋
I am Ruslan, a backend developer with experience in Node.js, TypeScript, NestJS, MongoDB, Redis, Docker, and a deep understanding of API integrations and transaction processing.

I have experience in creating REST services with caching, logging, stable architecture, and integrations with external APIs (Vimeo, Cloudinary, Telegram, OpenAI).

I can implement the required functionality for Solana / Jito / Jupiter API, with a clear code structure, error handling, and a README for setup.

My style is clean TypeScript, stable production code, and attention to detail.

GitHub: github.com/RuslanZotsenko22

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  • Rating 475

Budget: 1000 USD Deadline: 4 days

already had this project before it also included eth and avalanche chains

so ready to help you out

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  • Rating 307

Budget: 1000 USD Deadline: 15 days

Hello.
I understand that the goal is to create a backend service using Node.js and TypeScript that integrates the functionality of the Solana blockchain, including retrieving the balance of SOL and SPL tokens, the history of recent transactions, and simulating swaps through Jupiter with transaction execution via Jito packages. With solid experience in developing blockchain backend services, integrating RPC, and working with performance-optimized transaction streams, I will implement a clean, scalable architecture with caching, structured error handling, and ready-to-use API endpoints. I will ensure that the codebase is well-documented, modular, and fully compliant with the requirements of the Solana ecosystem, providing a GitHub repository and a clear README file for running the service. My focus is on creating an efficient, maintainable solution that demonstrates technical depth and readiness for long-term collaboration on more advanced blockchain features.

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