Java Jobs in Web3

3,619 jobs found

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Job Position Company Posted Location Salary Tags

Xchang.io

Remote

$75k - $85k

Coinbase

Remote

$217k

Coin Market Cap Ltd

Dubai, United Arab Emirates

$95k - $150k

Paypal

Austin, TX, United States

$80k - $85k

Tether

25 Como IT

$106k - $120k

Tether

25 Como IT

$106k - $120k

Crypto.com

Hong Kong, Hong Kong

$106k - $110k

Coin Market Cap Ltd

Dubai, United Arab Emirates

$106k - $106k

Coin Market Cap Ltd

Dubai, United Arab Emirates

$95k - $106k

Tether

TI Lugano CH

$106k - $120k

Tether

Milan, Italy

$106k - $120k

Paypal

Chicago, IL, United States

$98k - $105k

Crypto.com

India

$103k - $106k

Bitso

Latin America

$106k - $114k

Zinnia

Remote

$83k - $89k

Xchang.io
$75k - $85k estimated
Remote
Apply

We are developing a miniApp in Telegram for exchanging cryptocurrencies for fiat and vice versa. Our service ensures fast, convenient, and secure exchange with minimal fees.

We are currently looking for a Backend Developer (Spring Boot) to continue development and support the project.

What you'll be doing:

  • Developing and maintaining the backend for the Telegram miniApp using Spring Boot.
  • Integrating with TronGrid (receiving/sending USDT TRC-20).
  • Developing and improving the admin panel (user management, orders, exchange rates).
  • Creating REST API for the frontend (Vue.js) and integrating with the Telegram bot.
  • Optimizing the PostgreSQL database, setting up caching in Redis.
  • Implementing secure authentication (JWT, OAuth 2.0).
  • Ensuring server stability and fault tolerance.

What we are looking for:

  • At least 2 years of experience with Java + Spring Boot.
  • Strong knowledge of REST API, PostgreSQL, Redis.
  • Ability to work with Docker (basic level required).
  • Understanding of authentication principles (JWT/OAuth 2.0).
  • Experience integrating external APIs (e.g., payment gateways, crypto APIs).
  • Knowledge of multithreading and transaction processing.
  • Basic knowledge of RabbitMQ/Kafka (nice to have, but not required).
  • Experience with fintech or crypto-related projects is a plus.

What we offer:

  • Salary $2500-3000 per month.
  • Remote, office, or hybrid work (Czech Republic).
  • Flexible working hours (full/part-time, full-time preferred).
  • Opportunities for growth in crypto-fintech.
  • Long-term collaboration (with potential for salary increases based on performance).

How to apply?

Send your resume + code samples (GitHub, portfolio) to Telegram @xchangio_support or email [email protected]

Looking forward to working with you! 🚀

⬇
Apply Now

What does a Java developer in web3 do?

A Java developer in web3 would likely be focused on developing applications that use the Java programming language in the context of the web3 technology stack

Web3 is a collective term used to refer to the next generation of decentralized, blockchain-based technologies that are aimed at creating a more open and secure internet

In this context, a Java developer would be responsible for writing code that interacts with web3 technologies, such as decentralized applications (DApps) and smart contracts, to create new tools and services that run on the blockchain

This could involve working with cutting-edge technologies such as Ethereum, which is a popular blockchain platform that uses the Java programming language, as well as other web3 technologies and frameworks.