CeFi Trading Team Operator (Internship, Asset Management)

About Hyperithm

Hyperithm is Asia's leading provider of cryptocurrency financial services, built by a team of world-class engineers.

• Best-in-class team: a very high density of talent, made up of engineers, traders, researchers, VC investment professionals, and legal/finance/accounting specialists from leading universities and companies in Korea and abroad
• Best-in-class technology: designs and develops its own advanced trading systems and financial models
• Best-in-class investors: more than KRW 20 billion raised cumulatively from Samsung, Kakao, Naver, Hashed, GS Group, VIP Asset Management, Coinbase, and others
• Core service: cryptocurrency financial services for institutional investors
• Global business: more than 9 years of stable management of capital from major institutional investors in the United States, Japan, Hong Kong, Singapore, and other markets beyond Korea
• Solid footing: registered Virtual Asset Service Provider (VASP), a robust track record of more than 9 years, and a strong institutional network in Korea and Japan

About the CeFi Team

The CeFi Team treats coding and trading as one and the same. Every trader writes code, and every engineer trades. The role you carve out for yourself on the CeFi Team depends heavily on your strengths and what you enjoy. We welcome people who love trading, people who love programming, and everyone in between.

Our trading is based on quantitative models we develop in-house, and on days of high market volatility we process millions of trades a day. Coding is not just a tool; it is the core of our trading approach, and high-performance infrastructure is part of our edge. The CeFi Team is both a trading firm and an engineering organization that designs and operates high-performance systems. Team members come from engineering and science backgrounds and design and implement systems themselves, centered on Rust and Python, with performance, stability, and latency all taken into account. Rather than relying on external solutions, we build what we need and boldly remove what we don't.

Most of the problems we work on have no known answer. We deal with areas where the problem definition itself is the research subject, not simple tuning or parameter adjustment. High-frequency strategies that compete at the millisecond level, options arbitrage targeting structural inefficiencies, and multi-strategy portfolio management spanning asset classes, time zones, and market structures are all within our scope.

Joining the CeFi Team does not mean being a simple operator. Each person leads the strategies they are responsible for and must be able to explain "why this strategy should exist" through logic, data, and live trading results. We do not separate judgment from responsibility.

Responsibilities

• Monitor arbitrage algorithms that run 24 hours a day, 365 days a year
• Optimize the PnL dashboard and manage the book within the CeFi Trading Team
• Track PnL by strategy based on execution data

Requirements

• Proficiency in at least one of Rust or Python
• Enjoy continuously tracking the cryptocurrency market and its major events

Preferred Qualifications

• Experience operating a trading bot (with profits or losses of USD 100k or more)
• Experience reaching a top trading-volume tier on a CEX
• Experience implementing competitive-advantage strategies using exchange APIs (e.g., designing/operating automated cross-exchange arbitrage bots, triangular arbitrage)

Application Materials

• Resume (free format)
• (Optional) Materials that demonstrate your capability, such as a blog, social media account, blockchain wallet, or PnL leaderboard

Hiring Process

• Document screening → Take-home assignment → First interview (technical) → Second interview (culture) → Offer
• A reference check may be conducted before the final offer.
• Some steps may be skipped or simplified depending on experience and background.
• Please remove or mask sensitive information such as national ID numbers and current/desired salary before submitting.
• Application documents may only be submitted as PDF files or URLs.

Working Conditions

• Contract type: fixed-term contract (internship)
• Working period to be discussed; minimum 3 months (extension or conversion to a full-time position possible depending on performance)
• Incentives paid based on work performance

Work Environment

• Flexible working hours by team
• Generous lunch/dinner allowance (lunch allowance up to KRW 20,000)
• Unlimited snack bar and coffee
• Support for personal profile photo shoots
• Birthday and holiday gifts
• Cross-office work support at the Tokyo headquarters
• Workshops and internal networking programs (Mingling Day)
• Participation in the government worker vacation support program
• Annual comprehensive health check-up and personalized supplements
• Employee investment fund
• Education expense support of up to KRW 1 million per year
• High-spec MacBook provided
• Full support for the latest AI work tools: ChatGPT Team, ChatGPT Pro, Gemini Advanced, NotebookLM Plus, Claude Code Max, Cursor Team, and others provided to everyone (individual AI tool requests welcome)
• Beyond the benefits above, we continue to introduce new programs so that employees can focus entirely on their work.