# De-Fi Internship (Zurich)

> G-20 Group · Zürich, Switzerland · Full-time · Posted 2026-10-15

**Workplace:** on_site

## Description

_**Important**__: Please only apply if you are able to work on-site at our Zurich office every working day. This is a fully office-based role with no option for remote work.  
_

**About G20 Group** 

G-20 Group is a cross-asset trading firm headquartered in Switzerland, trading delta-one and derivatives markets globally. We combine startup agility with institutional-grade experience in proprietary trading, technology, and quantitative finance.

**Role Overview** 

We are looking for a motivated and technically curious DeFi Developer & Engineer Intern to join our global trading firm. This is an opportunity to gain hands-on experience in blockchain technology, decentralized finance (DeFi), and quantitative trading within a collaborative, technology-driven environment. 

Working alongside experienced engineers, quantitative researchers, and traders, you will contribute to the development of blockchain-based solutions, trading infrastructure, and DeFi applications. The ideal candidate will have strong programming fundamentals, a genuine interest in cryptocurrency markets, and a desire to develop their technical expertise in a fast-paced trading environment.

**Responsibilities**

-   Support the development and improvement of trading algorithms, infrastructure, and blockchain connectivity solutions. 
-   Research and analyze DeFi protocols, blockchain ecosystems, and on-chain data to identify opportunities for innovation. 
-   Assist in developing, testing, and deploying smart contracts and blockchain-based applications. 
-   Explore emerging blockchain technologies, protocols, and development frameworks. 
-   Collaborate with engineers and traders to support the implementation of automated trading and market-making solutions. 
-   Monitor developments across DeFi protocols and cryptocurrency markets, sharing relevant findings with the team. 
-   Participate in code reviews, debugging, testing, and technical documentation.

## Requirements

-   Currently pursuing or recently completed a Bachelor's or Master's degree in Computer Science, Computer Engineering, Mathematics, or a related technical discipline. 

-   Strong programming fundamentals, with proficiency in at least one of the following: Python, C++, Rust, TypeScript, or Solidity. 

-   Basic understanding of blockchain technology, smart contracts, and decentralized finance. 

-   Familiarity with Ethereum, EVM-compatible chains, or other blockchain ecosystems. 

-   Interest in cryptocurrency markets, algorithmic trading, and financial technology. 

-   Strong analytical and problem-solving skills, with an eagerness to learn and tackle complex technical challenges. 

-   Ability to work collaboratively in a fast-paced environment. 

-   Fluent English communication skills. 

**Preferred / Desirable Experience** 

-   Academic projects, personal projects, internships, or contributions to open-source blockchain applications. 

-   Exposure to smart contract development using Solidity or other blockchain programming languages. 

-   Familiarity with DeFi protocols, decentralized exchanges (DEXs), or on-chain analytics. 

-   Experience with Web3 development tools and frameworks such as Foundry, Hardhat, or ethers.js. 

-   Basic understanding of quantitative trading, market making, or financial markets. 

-   Familiarity with Git, APIs, and software development best practices. 

**Locations and Right to work**: This role will be based out of our Zurich office. Only candidates who possess the pre-existing right to work in Switzerland without company sponsorship need apply.  

Join G-20 and be a part of a team that is at the forefront of financial markets, driving innovation and excellence in the sector.

## Apply

[Apply at G-20 Group](https://apply.workable.com/g-20-advisors-ag/j/10A5C9AD93/apply)

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