Senior Software Engineer, C# & React

About Us 

MarketAxess is on a journey to digitally transform one of the world’s largest financial markets, enabling the shift from analog, phone-based trading to a fully electronic marketplace. Why does this matter? Because our platform makes trading fixed-income more accessible, ultimately improving transparency, efficiency, and competition in the marketplace. Changing the way an established industry transacts is no easy feat. There will be twists and turns, because no one’s ever done this before. But now, more than 2,000 clients around the world rely on our solutions, and that number is only expected to grow in the years ahead. We know where we’re going. How we get there is up to us. Join us and help Take Us There. 

The Role

We are looking for a self-directed, motivated full stack developer with a good foundation of advanced technologies and programming to join our team.  The ideal candidate will be comfortable managing the development, implementation and testing of new features for complex software applications while monitoring day-to-day operation of the production systems and perform proactive and reactive system maintenance. You'll learn all the intricacies of how our trading and technology intersect within the global financial marketplace while working on a leading equity derivatives trading platform.

How You'll Help Take Us There

• Hands-on development of new functionality and maintenance of the company's request for quote software for institutional ETF and equity derivative traders, focusing on backend and UI optimization and improvements.
• Design, build, and maintain our proprietary, request for quote protocol, systems, and infrastructures.
• Facilitate the development of automation workflows that leverage trade analytics and historical data to identify the best liquidity providers for each request.
• Optimize performance to ensure the platform can take on more capacity with minimal latency during high volatility trading periods.
• Design, create, and test trading strategies and infrastructures with cross-functional teams.
• Improve the scalability, performance, and efficiency of the existing tens of thousands of trading strategies in production.
• Understand the future needs of the business and design technical solutions to meet these demands.
• Ability to handle a wide variety of projects, from frontend facing projects to backend infrastructure, each in different programming languages.
• Willingness to support platform operations, system maintenance, infrastructure migrations, regulatory reporting.

What We’re Looking for  

• 3+ years server-side development experience with C#
• 1+ years client-side development experience with React.js using Typescript. Willing to train.
• Experience in site reliability engineering helpful.
• Experience writing complex SQL queries for SQL Server / Oracle
• Strong technical background with hands-on experience in designing, developing, and implementing software applications.
• Experience developing software in different programming languages, and demonstrated ability to quickly learn new languages and technologies
• Experience with implementing unit tests in Jest, integration tests, Test Driven Development
• Strong development, analytical and problem-solving skills to be able to work independently
• Experience with Atlassian tools: Jira, Bitbucket
• Must possess good teamwork skills and work effectively with cross-functional, multi-disciplinary teams

What You Can Expect from Us

• Hybrid Environment: Our employees enjoy a mix of working in the office and from home
• Free Food: We provide free lunch for employees when they are working in the office. Plus, our offices are stocked with snacks
• Paid Time Off: Competitive PTO package including vacation and personal days, sick leave and charity days
• Generous Parental Leave: Up to 20 weeks fully paid leave
• 401(k): Dollar-for-dollar employer match up to $17,500
• Employee Stock Purchase Plan: Employees can purchase MarketAxess common stock at a discount
• Wellness Stipend: We provide employees with up to $1K annually towards gym memberships, home office equipment and more
• Onsite Healthcare: We offer convenient access to world-class care through Mount Sinai at our Hudson Yards location
• Tuition Assistance and Professional Development: Benefit from live and on-demand learning, role-specific training, employee-led Lunch and Learns and guest speakers
• Core benefits: Highly competitive medical, dental, and vision programs

For job positions in NYC, NY, and other locations where required, the estimated sa