Job Title: Senior Software EngineerJob Description: Our Senior Software Engineers lead large technical projects, help set the direction for our trading infrastructure, and serve as role models within the organization.Our software engineering teams leverage technology to solve a variety of difficult problems. Our trading strategies must respond to market events in microseconds or less, and we automatically price large, diverse sets of financial instruments with extremely low error tolerance. We continually refine, store, and analyze terabytes of data produced by market activity and our trading systems. Our user interfaces must present coherent, responsive real-time visualizations of market activity and system performance while providing intuitive control of a highly complex system. Our core systems must provide a stable, performant, and trusted foundation on which our systems are built.Technology Overview:We pride ourselves on being real engineers, not just coders. Our engineers work closely with traders to identify the business problems we face and determine how they should be solved. We apply a disciplined and scientific approach. We engineer simple, well-architected solutions that meet the dynamic needs of our traders. Our passion is to solve problems which really matter to the business, and we take pride in the quality of our solutions.Who we are:We are a tech-driven trading firm and leading global market maker. Our mission is to constantly improve the market by injecting liquidity, providing accurate pricing, increasing transparency, and acting as a stabilizing force no matter the market conditions. With a focus on continuous improvement, we participate in the safeguarding of healthy and efficient markets for everyone who participates.Our culture parallels the energetic city we’re immersed in. Active on leading US exchanges, our office trades a wide range of products from listed derivatives to cash equities, ETFs, bonds, and foreign exchange.Responsibilities:Establish vision and technical direction for major initiatives Design, develop, support, and maintain large portions of our trading infrastructure Ensure new and existing programs adhere to our coding, architectural, and operational standards Develop a deep understanding of trading and exchanges Collaborate deeply with traders, engineers, and researchersQualifications:Strong engineering instincts and a deep understanding of computer science fundamentals Experience writing software in C++, C#, C, and/or Python Innovative, big-picture thinking grounded in real-world pragmatism Desire to continuously improve in a rapidly evolving environment Readiness to set technical direction, promote engineering principles, and do the right thingDiscipline(s): TechnologyDuration: PermanentJob type: Permanent