Software Engineer - Trading System Developer

XTX Markets

$200K — $300K *
Finance & Insurance
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in software development, particularly in trading systems.
  • Proficient in Kotlin; experience with Java, C++, or C# is a plus.
  • Demonstrated ability to build technology quickly and safely with strong testing methodologies.
  • Solid understanding of Computer Science fundamentals, especially in high-performance contexts.
  • Good grasp of latency and throughput requirements, with experience in microsecond-level requests.

Responsibilities

  • Develop and maintain a diverse set of trading systems with a focus on ETFs.
  • Collaborate with quant teams to implement models and manage hard controls from Risk and Compliance.
  • Engage with Trading Analysts to refine system ergonomics and user experience.
  • Work closely with NYC-based stakeholders such as Business Development and international developers in London.
  • Ensure a high level of code quality through rigorous code reviews and testing practices.

Benefits

  • Extensive medical and wellness benefits, including a gym membership.
  • Daily meals provided with breakfast and lunch.
  • Modern office space in Hudson Yards.
  • 25 days of paid vacation plus statutory holidays and sick leave.
  • Generous 401k contributions with a focus on employee savings.
  • Hybrid work model with four days in office and one day remote, unless otherwise specified.
Full Job Description
The Role

The OTC Trading Development team is currently looking to hire an experienced developer focused on trading system development.

The Team:

  • Architects, implements and maintains a diverse set of trading systems: whilst ETFs will be the immediate focus for this position, the team works to build a wide range of systems which span prop trading on venue and OTC liquidity provision platforms across other asset classes (primarily Equities, FX and Crypto).
  • Receives reference implementations of models from quants, hard control requirements from Risk and Compliance, and system ergonomics requests from Trading Analysts, often working closely with those teams to find the best direction.
  • Is highly autonomous in how we work, maximising safety and velocity. We build and maintain multiple trading systems with a fraction of the headcount of our competitors, so it's critical we can eliminate bureaucracy.
  • This will be the team's first hire in New York. This role will involve working on our ETF trading system. The role will require close platform with stakeholders to the system in NYC e.g. Business Development, as well as with OTC's developers in London.
  • There are no out-of-hours support responsibilities involved in this role.
  • There may be an occasional requirement for travel to our London offices.

The Technology:

  • Consists of high-performance trading venue integrations, fair value generation, trading algorithms, risk controls and real time UIs implemented from business requirements.
  • Is predominantly implemented in Kotlin, with limited amounts of C++. Older parts of the codebase may use Python or Java; this is a decreasing minority.
  • Is tailored to a wide range of latency and throughput requirements. Where necessary we use a thread-per-core architecture, implement large parts of the network stack and integrate with network card APIs directly.

AttributesSomeone that would be an excellent fit:
  • Is an experienced coder, with a solid understanding of Computer Science fundamentals.
  • Has several years of experience working in Kotlin or other object-oriented languages like Java, C++, or C#.
  • Knows how to build technology quickly and safely using a variety of testing methods.
  • Unblocks the team with code reviews that prioritise correctness over style preferences.
  • Has experience in systems with requirements of microseconds per request or gigabits per second per thread.
  • A well-founded understanding of ETFs is desirable, though we are open to candidates with any domain knowledge, experience or evidence of interest within finance.

Benefits
  • Extensive medical and wellness benefits including gym membership.
  • Breakfast and lunch provided daily.
  • Beautiful Hudson Yards office.
  • 25 days paid holiday per year + statutory holiday and paid sick days.
  • Generous 401k contributions.
  • We work 4 days per week in the office, 1 from home unless stated otherwise.


The base salary range for this role is between $200,000 to $300,000 depending on relevant job-related skills and experience. You will be eligible for participation in a discretionary annual performance bonus scheme and will enjoy a comprehensive package of benefits. All bonuses, benefits, and any sign-on payments are in addition to the base salary range stated.

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