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Senior Software Engineer, Trading



Software Engineering
Remote · United States
Posted on Friday, January 12, 2024

sFOX is a full-service prime dealer uniting liquidity from over 30 exchanges and OTC desks in one easy-to-manage platform. sFOX's platform provides traders with best execution services from a single account, a single counterparty, and a single workflow — giving traders greater capital efficiency. Its smart order router algorithmically routes traders to the most competitive prices worldwide, reducing slippage and improving trade performance across immense scale.

sFOX is committed to the highest standards of investor protection and reliability. The platform is SOC 2 certified and provides access to the market 24/7 with 99.99% uptime. Founded in 2014, the company is backed by Social Capital, Digital Currency Group, Khosla Ventures, DHVC, Haystack, Blockchain Capital, Y Combinator, and executives from PayPal and Airbnb.

We’re on a mission to open the world’s financial markets to everyone and we’re looking for exceptional talent to join our rapidly growing team.

About the Position

sFOX is looking for a Senior Trading Systems Software Engineer to join the internal trading team. This is a lean team led by seasoned algorithmic traders and engineers responsible for building and supporting a diverse and feature rich technology stack enabling sFOX to trade across global counterparties with an array of strategies building out client market making led by experienced traders / engineers from previous Investment banking backgrounds.

As a member of this team, you will work with other software engineers and traders to design, develop, and improve the trading stack. You would be expected to design and develop both improvements to existing and new trading systems, monitoring systems, and connectivity. Current systems are written in Golang.

Candidates should be intellectually curious with experience independently executing projects to completion and into ongoing monitoring. Candidates should be able to write efficient code and discuss ideas and methods to implement and improve the systems. The candidate must be very proficient at programming and basic algorithms and frameworks. This is a position where candidates can learn more about markets, microstructure, trading, and risk management.


  • Collaborate across teams to develop and maintain quality software systems that support 24/7 global trading operations, spanning trading systems, exchange connectivity solutions, and monitoring systems
  • Utilize Golang to design and implement full-stack software systems, conducting thorough testing at unit, functional, and integration levels
  • Provide on-call support as required
  • Foster collaboration with traders, product managers, and fellow software engineers across the organization


  • 3-5 years of experience in an institutional-based role
  • Experience designing and implementing institutional financial trading systems, such as high throughput transactions, hedging systems, position managers, trading models
  • Highly proficient at programming in low level languages such as Golang (preferred), C++, or C#
  • Understand technical requirements and be able to independently translate them into a working framework / product
  • Understand system performance and optimization approaches
  • High attention to detail and low level debugging

Nice to Have

  • Experience in low latency environments
  • Experience in markets (preferably crypto / FX)
    • Knowing details of market making, managing positions, pricing etc.
  • Experience with DeFi
  • Experience with derivatives
  • Good communication skills (able to translate sales asks to engineers)
  • Ability to work in a very lean fast paced environment and handling development changes quickly and in parallel

sFOX is committed to diversity in its workforce and is proud to be an equal opportunity employer. We do not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law.