Join SFOX

Be a part of a fast-growing company where you can make your mark!

About Us

SFOX, San Francisco Open Exchange, is the easiest way to access the global digital currency market.

Our solution makes it easy for businesses to use crypto currency by providing access to high liquidity and the ability to trade large volumes. Institutions, international businesses and professional traders use SFOX for single point of access to 15+ venues, price discovery, real-time pricing and analytics, depth of book view, and trading algorithms for best execution.

We are a small team of engineers excited by the potential of crypto currency. We are looking for people who want to explore - people who dare to dream big and try something new. We love new creative ideas, and want to change the way currency and payments operate today. Want to be part of revolutionizing currency trading and cross-border payments? Join us!

SFOX is backed by YC, Khosla Ventures and Social+Capital. The company started as an institutional Bitcoin trading platform in the US and currently does 10% to 20% of BTCUSD trading. The company was founded by Akbar Thobhani, formerly head of growth at Airbnb and product guy at Boku and by George Melika who has previously founded a telecom company and did algorithmic trading at major wall street firms.

Software Engineer : High frequency trading systems

SFOX is seeking a server side developer to take the responsibility and ownership in expanding our low latency, high frequency cryptocurrency trading platform. If you like trading, software development and crypto currency - we want to talk to you.

Role

You will develop a real-time trading infrastructure and implement trade execution strategies for the digital currency market. You will be involved with analyzing our risk exposure, structuring algorithms, and develop advanced trading tools. You will work closely with our Founder and CTO with the responsibility for managing and enhancing a proprietary low latency/high frequency distributed trading system used for automated digital currency trading.

About You

  • Five years software engineering experience
  • Strong experience developing large-scale concurrent, event-driven distributed systems
  • Server side development experience is a must
  • Experience with Javascript, Go or C++.
  • Good practical knowledge of sql in general and mysql in particular
  • Strong CS fundamentals, including good working knowledge of algorithms, data structures, distributed systems
  • Rigor in engineering best-practices (e.g. code reviews, automated testing, CI etc.)
  • Passion for innovation and for working in early stage startups
  • High performance/low latency systems, Bitcoin experience is a plus

What you'll do

  • Develop and enhance a low latency / high frequency, trading platform
  • Design and develop unique algorithms based on market behavior
  • Develop high frequency trading strategies
  • Monitor and support all production system components (trading algorithms, exchange connectivity, analytics, market data)
  • Deploy software releases and configurations

We love

  • Experience working with trading and market data
  • Experience in high-frequency or algorithmic trading
  • Experience in trading digital currency
  • Knowledge of computational mathematics, statistics, and machine learning
  • Understanding of digital currency trading market
  • Interest in Bitcoin, digital currency, and distributed ledger technology

Software Engineer : Blockchain & Security Systems

SFOX is seeking a server side developer to work on blockchain technology. If you like blockchains, cyber security, cryptography, solving Rubik’s cube - we want to talk to you.

Role

You will work on making it easy to use Blockchains, secure our systems and improve our key management systems. You will work closely with our Founder and CTO and learn how to work on Blockchain platforms, applied cryptography, financial engineering, and much more!

About You

  • Five years software engineering experience
  • Strong experience developing large-scale concurrent, event-driven distributed systems
  • Passion to work on public key cryptography (and blockchain)
  • Server side and blockchain experience is a plus
  • Experience with javascript, Go, and C++
  • Strong CS fundamentals, including good working knowledge of algorithms, data structures, distributed systems
  • Good practical knowledge of sql in general and mysql in particular
  • Rigor in engineering best-practices (e.g. code reviews, automated testing, CI etc.)
  • Passion for innovation and for working in early stage startups

What you'll do

  • Develop highly scalable blockchain nodes
  • Improve key management system
  • Penetration testing and vulnerability research, with recommendation of threat mitigations
  • Security guidance and tool development
  • Work on developing our blockchain solution and securing our advanced trade platform

We love

  • Full command of Node.js, Ethereum, Solidity, Go, Python, git and Continuous Integration/ Deployment based workflows
  • Formally trained and experience in cryptography, systems security, cloud security and privacy, distributed database systems and data analytics
  • Previous hands-on software engineering experience working with cryptographic solutions, API-based applications, Amazon AWS, mobile and web-based blockchain software products on Linux-based, Windows, Android, and iOS platforms