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MarketAxess

Customer Integration Engineer

Sorry, this job was removed at 06:10 p.m. (GMT) on Friday, Sep 26, 2025
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Hybrid
London, England
Hybrid
London, England

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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 EU 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 as well as our Post-Trade products and APIs.

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 as well as Post-Trade and Data API products.
  • Create and maintain clear and concise technical documentation, aimed at external IT audience
  • Maintain awareness of CI 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
  • Use Jira for on-going integration efforts, providing clear updates for technical teams and business stakeholders
  • Hybrid Role and provide onsite coverage at 8:30am 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 

  • Central Location: based at our city offices near St Paul's.  
  • Free Food: We provide lunch each day of the week when the employee attends the office via our vendor Feedr as well as breakfast cereals, office snacks and drinks from our free vending machines 
  • Paid Time Off: 25 days annual leave entitlement plus 2 charity days
  • Reward for your service: We offer a two-week bonus holiday after completing each 5 years of service 
  • Core benefits: Besides competitive standard benefits package we offer private medical (PMI) for family, Cash Plan, health screenings, dental cover, 6X life assurance, critical illness cover, income protection, pension, car leasing (Tusker electronic cars), reimbursement for wellness stipend, interest free season ticket loan and a “Share Incentive” plan
  • Tuition Assistance and Professional Training: Benefit from on-demand learning, boot camps, and opportunities to attend conferences 

Collaboration and innovation are integral to our success – it's how we got to where we are and how we’ll maintain and grow our competitive advantage. We believe this best happens in an office environment. Employees in Technology work in the office 2 or more days a week. This approach still allows for flexibility depending on the business function you work within but also helps us maintain a collaborative office environment long-term.

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