Budget: 1000 USD Deadline: 22 days
Hello.
I am a NodeJS developer. I have experience with blockchain. I am ready to take it on. Write to me, we will discuss.
Budget: 1000 USD Deadline: 1 day
Hello, I worked on a Backend service: API for balance and transactions, caching and error handling with Node.js, TypeScript, blockchain integration, over 1000 users.
How do you plan to implement error handling for RPC failures in your service?
I suggest we get in touch, I will consult you for free on the technical side and we will create a development plan + I will tell you about my team! ✨
Budget: 1000 USD Deadline: 10 days
Здравствуйте!
Меня зовут Алексей, я представляю группу разработчиков – NC-1.
Более пяти лет мы создаем веб-сайты, мобильные приложения, интернет-магазины, ERP/CRM системы и другие e-commerce продукты.
В нашей команде есть специалист (full stack, senior) с необходимыми для Вас опытом и знаниями. Ставка в час - 19 usd
Стек: Languages & Core: JavaScript, TypeScript. Frontend: React, Next.js, HTML, SCSS, MUI, Mantine, RTK, Zustand, Effector (ecosystem), Webpack, Vite. Backend: Node.js, Express, NestJS, Fastify. Databases & ORM: PostgreSQL, MongoDB, TypeORM, Sequelize. Messaging & Realtime: Socket.IO, RabbitMQ. Infrastructure & Tools: Docker, Linux.
С радостью вышлю вам его резюме.
Кейсы - https://1drv.ms/b/c/b7a0d31a9dae1bc5/EeH6JPdpBbpKtrkA1zFQOIMBAmqUcd_Ptx5tt5p9hBNG-g?e=wXDGHh
Портфолио – https://nc-one.com/case-studies
Budget: 999 USD Deadline: 30 days
I am Selek, the founder and creator of my own brand, offering professional and comprehensive digital services from programming to design. I working with HTML, CSS, JavaScript, TypeScript, ReactJS and NodeJS, which allows me to create fast, functional and aesthetically appealing websites and web applications.
Programming and system development:
I specialize in Front-End and Back-End areas. I create modern user interfaces using ReactJS, integrate databases (SQL, NoSQL – MongoDB), create secure and efficient REST APIs that adapt to business needs. I use TypeScript to achieve even greater code security and stability.
Design solutions:
In addition to programming, I offer professional website design, combining UI/UX retro style principles, and the final solutions would be not only functional, but also visually appealing. I also create unique, memorable logos that reflect the essence of the business. I use modern AI technologies to create innovative visual solutions - AI-generated design, illustrations, product visualizations, etc.
Project implementation from A to Z:
I am not just a programmer or designer - I am a problem solver. I start each project with analysis and understanding of needs, then move on to UX/UI design, coding, testing and optimization. I can work both individually, in a team, and as a freelance specialist.
Why is it worth working with me?
I work with quality and responsibility
I am able to independently manage the entire development process
I am oriented towards client needs and business value
I am always looking for innovative solutions
I have experience with both small and complex projects
For more information, please visit:
www.selek.site
https://github.com/SelekOnlineDev
https://www.linkedin.com/in/eimantas-jaskonis/
https://www.linkedin.com/company/selekonlineworld/?viewAsMember=true
https://www.facebook.com/profile.php?id=61576021976928
instagram.com/selek_online_world
If you are looking for someone who combines technical expertise with creative vision I will help your business grow in the digital space!
Budget: 999 USD Deadline: 3 days
Davit Minasyan
Full Stack Developer (React + Spring Boot) I am a Full Stack Developer specializing in creating modern, scalable web applications using React on the frontend and Java Spring Boot on the backend. I have practical experience working with MongoDB and PostgreSQL for data management, as well as deploying applications using Docker, AWS (EC2, S3, Route 53), Render, Vercel, and Netlify.
My projects include a platform for a museum with event management, exhibitions, artifacts, and blogs, as well as e-commerce solutions with product catalogs, order management, payments (PayPal), and delivery integration. I focus on creating robust architectures, smooth user experiences, and clean interfaces using TypeScript, Redux, Tailwind CSS, Bootstrap, and Material UI.
I am passionate about creating meaningful digital products, integrating third-party APIs, and working at all levels of the stack—from backend services and authentication/authorization to frontend design and deployment pipelines.
🌐 Portfolio:
https://portfolio-davids-projects-cd2a86c5.vercel.app/
🖼️ Project:
https://museum-front.vercel.app/
https://sevan-front.vercel.app
💻 GitHub:
https://github.com/dminasian1999
💼 LinkedIn:
https://linkedin.com/in/davit-minasyan-48701736b
I believe that working here will allow me to grow professionally while contributing to meaningful projects that have a real impact. I am particularly excited about the opportunity to collaborate with skilled colleagues, follow best practices, and create clean, scalable solutions that enhance the user experience.
Budget: 4390 USD Deadline: 29 days
Good day!
I am Valentin from Arctic Web. We specialize in IT consulting and full-cycle development: from UX/UI design to web and mobile development and integrations. We are ready to take your project into work and share examples of similar cases in personal messages.
Best regards,
Arctic Web Team 
Freelancehunt
Budget: 1000 USD Deadline: 10 days
Hello!
I am interested in your offer for a backend service on Node.js/TypeScript with Solana and Jito.
I am ready to create an API for balance, transactions, and Jupiter swap with caching and error handling.
Write to me to discuss the details!
Budget: 1000 USD Deadline: 30 days
Good day!
I am a Middle+ backend developer with experience in Node.js + TypeScript. I have developed services with Solana blockchain integration (working with RPC, SPL tokens, transactions) and am familiar with the Jupiter API. I have experience in optimizing transactions and caching requests.
I am ready to complete a test task and discuss long-term cooperation. Code examples and projects are on GitHub: https://github.com/KarenMacakyan?tab=repositories.
Rate — $15 per hour / negotiable per project.
Sincerely.
Budget: 1000 USD Deadline: 15 days
Hello.
I have extensive experience in developing backend services using Node.js and TypeScript with blockchain integration, including Solana RPC, Web3.js, and Jupiter API for token management and swaps. In a recent project, I created a wallet tracking system based on Solana with caching, error handling, and transaction simulation, optimizing RPC calls for speed and reliability. I am well-versed in Jito packages and transaction prioritization, ensuring efficient execution with minimal latency. My clean, well-documented code adheres to best practices for scalability and maintainability. I can quickly and accurately complete your test task, providing a clear GitHub repository with detailed setup instructions.
Budget: 1000 USD Deadline: 20 days
Hello, Bohdan! 👋
I am a full-stack developer with experience in creating complete SaaS products, where I combine the roles of backend/frontend developer, DevOps, and tester.
Your project with Solana + Jito integration looks very interesting, and it aligns perfectly with my experience.
I have strong skills in:
Node.js + TypeScript (commercial development, API architecture, optimization);
integration with blockchain and third-party APIs;
developing reliable services with error handling, caching, and high availability in mind.
Examples of my work:
GitHub: https://github.com/symonbaikov
Commercial project (full SaaS service): https://github.com/WorkNow-S-R-O/worknow
Budget: 1000 USD Deadline: 30 days
Good day!
I am a backend developer with commercial experience working with Node.js, TypeScript, Express/NestJS, MongoDB, and third-party API integrations. I also have experience with caching, authorization, and performance optimization of services.
I have previously worked with the Solana blockchain at the integration level through RPC and API, familiar with transaction mechanics and SPL tokens. I am also open to quickly diving into Jito and Jupiter API for quality task implementation.
In the test task, I will be able to implement:
API for retrieving balance and transaction history,
integration of swap through Jupiter API with Jito bundle,
basic caching,
error handling, and README for running.
My GitHub: https://github.com/RuslanZotsenko22?tab=repositories
Code examples: repositories with backend on Node.js and NestJS in my profile.
The rate is stated for project execution, it suits me perfectly.
I am ready to complete the test task and consider long-term cooperation.
Budget: 1000 USD Deadline: 1 day
Hello. I have extensive experience with Node.js. I am ready to collaborate. Contact me.
Budget: 950 USD Deadline: 30 days
Write in private messages, we will discuss the task in more detail. I am a nodejs backend developer, I will create the northern part of the application for your tasks.
