Customer Integration Engineer

Sorry, this job was removed at 04:08 p.m. (CST) on Wednesday, Sep 10, 2025
New York, NY
Hybrid
Fintech • Information Technology • Financial Services
We’re transforming how the world trades fixed income. And we’re not done, yet.
The Role

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 seeking an engineer for the US Customer Integration (CI) group. The primary responsibility of the CI group is to work with broker-dealers and institutional clients to help them integrate their systems to the MarketAxess Fixed Income trading system via Application Programming Interfaces (API). This includes integration with front-office, mid-office and back-office systems for order management, trading and settlement. Additionally, the CI group is also responsible for integrating our market data products/feeds with our data customers.

How You'll Help Take Us There

  • Assist new and existing institutional clients and broker-dealers with the integration of MarketAxess provided APIs for various FIX Trading APIs, Straight Through Processing (STP), and Market Data feeds
  • FIX API integration for various fixed income products – US Investment Grade, High Yield Emerging Markets, US Agencies, Municipal Bonds and US Treasuries
  • Create and maintain clear and concise technical documentation, aimed at external IT audience
  • Maintain awareness of USCI team inbox and hotline to promptly respond to customer inquiries
  • Work closely with Product Owners and customers on the deployment of new API functionality and workflows and implement features with client requirements/needs in mind
  • Resolve escalated Production issues and test customer scenarios in non-Production environments
  • Build and foster relationships with Dealer and Client technology teams, engaging them in the design and development of new products, features and services
  • Jira on-going integration efforts, proving clear updates for technical teams and business stakeholders
  • Hybrid Role and provide onsite coverage at 8:00am when in-office

What We’re Looking for  

  • This is a client-facing technical role.  Candidates must be articulate, have a strong client orientation and show a high sense of urgency towards client demands/needs
  • 3+ years of experience in a customer integration role
  • Candidate should be comfortable multi-tasking in a fast-paced environment and able to suggest opportunities for increasing efficiency and improving team processes
  • Strong verbal and written communication skills
  • Experience with the FIX 4.4, 5.0SP2, FIXT.1.1 protocols
  • TCP/IP & networking fundamentals
  • RDBMS skills (SQL Server and/or Oracle) – ability to read, write and run SQL scripts.
  • Knowledge of Fixed Income or other Financial Markets
  • Experience with OEMS systems
  • Experience troubleshooting and testing in a Linux Environment
  • Experience creating Tableau reports a plus

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 salary range for a new hire into this position is $110,000 USD to $180,000 USD. Actual salary may vary depending on job-related factors, which may include knowledge, skills, experience, and location. You may also be eligible for annual cash incentives, equity, and other benefit programs.

MarketAxess Corporation and its affiliates provide equal employment opportunities to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, veteran status, or any other legally protected characteristic in the location in which the candidate is applying.

All of your information will be kept confidential according to EEO guidelines.

MarketAxess Privacy Notice for Candidates

CCPA Notice at Collection for California Employees and Applicants

What the Team is Saying

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The Company
HQ: New York, NY
892 Employees
Year Founded: 2000

What We Do

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 2,300 companies 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.

Why Work With Us

When we say we have an environment without endless layers, we really mean it. You’ll work alongside talented colleagues of all backgrounds and experience in an environment where your voice is valued. You’ll be in the middle of the action, where your contributions will be seen and recognized.

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