Customer Integration Engineer @ MarketAxess

Sales & Solution Engineering (1)

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 CI group partners with broker‑dealers and institutional clients to integrate their systems with the MarketAxess Fixed Income trading platform through our suite of Application Programming Interfaces (APIs), covering front‑office, mid‑office, and back‑office workflows. As the firm advances its strategic focus on an API‑first architecture, this role directly supports that vision by enabling clients to adopt standardized, scalable, and resilient API‑driven integrations. The CI group also leads the implementation of our market data products/feeds and our Post‑Trade APIs, ensuring alignment with the company’s broader technology strategy and long‑term vision.

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

3+ years of experience in a customer integration role
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
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 OEM systems
Experience troubleshooting and testing in a Linux Environment
Exposure to AI technologies or comfort adopting AI‑assisted tooling to improve integration efficiency
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 Product work in the office 3 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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Customer Integration Engineer

MarketAxess

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