Kotlin Jobs in Web3

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Job Position Company Posted Location Salary Tags

Ethereum Foundation

United States

Bitso

Latin America

$87k - $97k

Binance

Taipei, Taiwan

Parity

Remote

$106k - $115k

Binance

Asia

Bitgo

Remote

$160k - $200k

Bitgo

Remote

$161k - $174k

Ant-Tech

New York, NY, United States

$250k - $300k

Brave

Remote

$119k - $150k

Tether

Islamabad, Pakistan

$36k - $105k

Tether

Delhi, India

$36k - $105k

Figure

Remote

$102k - $128k

Figure

Remote

$102k - $128k

Bluecubeservices

Remote

$120k - $129k

Tether

Delhi, India

$91k - $105k

Ethereum Foundation
Colorado Boulder United States
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About the Ethereum Foundation

The Ethereum Foundation (EF) is a global non-profit organization dedicated to helping Ethereum become an open, decentralized infrastructure for the world. We allocate resources to critical projects when needed and step back when others can take the lead.

Role summary

We are looking for a developer to join the Ethereum Foundation’s Account Abstraction & Interop efforts. You will focus on improving the developer experience (DX) for both ERC-4337 and EIL (Ethereum Interoperability Layer), helping developers build, test, and integrate with these protocols.

This role combines hands-on tool development with applied protocol knowledge. You’ll create and maintain frameworks, plugins, and testing environments that make it easier for developers to adopt account abstraction and cross-chain interoperability.

About the team

The Chain & Account Abstraction team works at the cutting edge of Ethereum usability, focused on:

  • Account Abstraction (ERC-4337) – enabling smart contract wallets and alternative transaction flows: https://erc4337.io

  • EIL (Ethereum Interoperability Layer) - connecting L1 and L2s.

Key responsibilities

Your mission is to lower the barriers to experimentation and adoption by providing powerful, user-friendly developer tools and testing environments.

Depending on your skills and interests, you will contribute to a subset of the following:

  • Build and maintain Foundry, Hardhat, viem, and ethers.js plugins to support ERC-4337:

  • Local test environments

  • UserOperation (UserOp) building, encoding/decoding, and error decoding

  • Develop a gas estimation toolkit:

  • Per-account and per-paymaster validation gas analysis

  • Designing, implementing and supporting new integrations with external projects, protocols and developer frameworks

  • For the new EIL interop protocol, design and maintain a multichain testing framework and documentation

  • Document your work and collaborate closely with researchers, protocol developers, and ecosystem partners.

Required skills & experience

  • Strong experience in Ethereum development tooling (Foundry, Hardhat, viem, ethers.js, or similar).

  • Solid knowledge of smart contract development (Solidity, contract deployment, testing, debugging).

  • Strong knowledge of TypeScript, JavaScript, Solidity, familiar with Rust, Go, Node.js, React, Angular, Swift/Kotlin can be a plus.

  • Familiarity with ERC-4337 and account abstraction concepts.

  • Comfort with cross-chain or multichain development.

  • Past contributions to open source Ethereum projects are highly valued.

  • Excellent communication skills and ability to work in a distributed, asynchronous team.

  • Curiosity, initiative, and a willingness to keep learning.

Logistics

  • Fully remote, full-time position.

  • Flexible hours, though overlapping with Western Europe time zones is a plus (especially around “Eth o’clock” – 14:00 UTC).

  • Occasional travel to Ethereum events is encouraged but not required.

⬇
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Is Kotlin a good career?

Yes, Kotlin is a good career choice for developers who want to work in the Android app development, backend development, or cross-platform development space

Kotlin is a modern programming language that was designed to improve upon some of the shortcomings of Java, making it more concise, safe, and interoperable with other languages

Here are some reasons why Kotlin is a good career choice:

  1. High Demand: Kotlin is in high demand in the technology industry, especially in the Android app development space. Many companies are now using Kotlin to develop their Android apps, and the demand for Kotlin developers is growing rapidly.
  2. Compatibility: Kotlin is interoperable with Java, which means that developers can use both languages in the same project. This makes it easy for developers to migrate from Java to Kotlin and vice versa, and it also makes it easier to integrate Kotlin into existing Java-based projects.
  3. Easy to Learn: Kotlin is relatively easy to learn for developers who are already familiar with Java or other similar programming languages. Kotlin has a simpler syntax than Java, making it easier to read and write code.
  4. Concise and Safe: Kotlin is a more concise language than Java, which means that developers can write less code to achieve the same functionality. Additionally, Kotlin has built-in null safety features that help developers avoid common errors and bugs.
  5. Career Growth: Kotlin is a relatively new language, which means that there is a lot of room for growth and innovation. Developers who are proficient in Kotlin have the opportunity to contribute to the development of the language and its ecosystem, which can lead to career growth and advancement.