Backend service on Node.js/TypeScript with Solana + Jito integration
Hello everyone! We are looking for a developer at the Middle+ level for a test task with the prospect of long-term collaboration.
It is necessary to implement a small backend service on Node.js + TypeScript with integration of the blockchain Solana and Jito.
Functionality:
API for retrieving the balance of SOL and SPL tokens by address;
API for retrieving the latest transactions for the wallet;
Endpoint for simulating a swap via the Jupiter API, transactions must be sent through Jito bundle;
Basic caching of RPC requests;
Error handling (RPC failure, unsuccessful transaction, etc.).
Result:
Repository on GitHub with source code;
README with instructions for running
Requirements for candidates
Commercial experience with TypeScript + Node.js;
Understanding of working with the Solana blockchain, RPC integrations, and third-party APIs;
Experience with Jito or similar transaction optimizations is desirable.
In your response, please include:
A link to your GitHub or other code samples;
A brief overview of your experience in backend development;
An estimated rate (hour/project).
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15 days1000 USD
308 15 days1000 USDHello! 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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5 days1000 USD
315 5 days1000 USDGood 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.
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111 days1000 USD
1098 12 0 2 111 days1000 USDHello!
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.
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7 days1000 USD
2874 24 0 7 days1000 USDHello! 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.
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3 days980 USD
1310 6 0 3 days980 USDGood day! I am ready to complete the test task. I have experience with Node.js and Solana, so I can start right away.
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30 days1000 USD
1506 6 0 30 days1000 USDGood 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
…
3) Development of design and its implementation into a finished product (personal page of an English and French tutor):
https://www.aniriyar.com/
4) Development of an extension for Outlook:Behance
1. Github - https://github.com/bodiabeliy
2. Experience 2+ years (Nodejs, C# plugin)
Open to communication and discussion of details.
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7 days1000 USD
858 2 0 7 days1000 USDGood day, more than 15 years in development, including the specified by you more than 7 years, 30 dollars per hour.
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1 day1000 USD
1212 7 0 1 day1000 USDHello 👋
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
Rate - starting from $25/hour or negotiable based on the project scope.
I am ready to take a test to demonstrate my approach to architecture and code quality ⚡
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4 days1000 USD
475 2 0 4 days1000 USDalready had this project before it also included eth and avalanche chains
so ready to help you out
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15 days1000 USD
307 15 days1000 USDHello.
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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1 day1000 USD1 day1000 USD
**Hello, I worked on** a project with blockchain integration on Node.js and TypeScript — handling balance and transactions for 500+ users daily!
How do you plan to handle frequent RPC failures for service stability?
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! ✨
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14 days1000 USD
162 14 days1000 USDHello.
I was interested to learn about your project. I am confident that I can do effective and quality work that meets your requirements and expectations. I have over 8 years of experience. I am ready to discuss the details and start working. I look forward to your response.
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23 days1000 USD
642 4 1 23 days1000 USDHello! Your task is quite feasible. I am ready to invest all my talent so that you receive a quality product in a short time and within a reasonable budget. I look forward to your response — I am confident that with my professional skills and your brilliant ideas, we will create something amazing!
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10 days1000 USD
396 10 days1000 USDHello!
My name is Alexey, I represent a group of developers – NC-1.
In our team, there is a specialist (full stack, middle+) with the necessary experience and knowledge for you. The hourly rate is 22 USD.
Stack: PHP, OOP, MVC, Laravel, Symfony, Yii2, SQL, MongoDB, PostgreSQL, Redis, Docker, CI/CD, Nginx, Apache, Node.Js, Javascript, React.Js, Vue.Js, HTML5, CSS3, Bootstrap 3/4, LESS, SaSS, Swift, Swift-UI, React Native, Ionic, Git, SVN
More than 8 years of commercial experience.
I am ready to send a code sample and resume.
Cases - https://1drv.ms/b/c/b7a0d31a9dae1bc5/EeH6JPdpBbpKtrkA1zFQOIMBAmqUcd_Ptx5tt5p9hBNG-g?e=wXDGHh
Portfolio – https://nc-one.com/case-studies
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1 day1000 USD
2046 16 0 1 day1000 USDHello Bohdin!
At the beginning of the month, I was integrating the frontend with the smart contract on Solana using RCP, so I can help you with the test as well.
Feel free to reach out!
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1 day1000 USD
1182 8 1 1 day1000 USDHello, Bogdan
Let's do it, but first can you provide more details about what service you are doing and what is jito bundler for?
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30 days1000 USD
573 9 0 30 days1000 USDWrite in private messages, I will implement the backend for you to work with the blockchain.
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1 day1000 USD
471 1 day1000 USDGood day. I work with this stack and can integrate Solana & Jito.
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22 days1000 USD
9984 117 0 22 days1000 USDHello.
I am a NodeJS developer. I have experience with crypto. I am ready to take it on. Write to me, we will discuss.
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