Senior Client Connectivity Engineer

The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions. Through our people and technology, we connect clients to superior liquidity and data solutions. The Group operates from more than 60 offices in 27 countries. We are 5,300 people strong. We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist.

Liquidnet is a next-generation agency execution specialist. Powered by technology that helps drive institutional alpha, our trading and liquidity network intelligently and securely connects the world’s investors with the world’s investments. Established in 1999 on the belief that there was a better way to trade, Liquidnet's journey began with a vision to create a platform that goes beyond traditional transactional models. We wanted to build a community where traders could connect, collaborate, and execute trades with confidence. Over the years, we've grown from a vision into a thriving ecosystem that empowers the buy side in ways never before imagined. We are committed to making trading more efficient, intelligent, and accessible.

Role Overview

Liquidnet is looking for a senior level FIX specialist to manage client connectivity to our fixed income trading systems. The team requires a motivated self-starter with strong project management and technical skills to support existing FIX and proprietary API connections and help drive the direction of client connectivity to all Liquidnet Fixed Income trading platforms. This is a hands-on role where the client will utilize their deep understanding of Fixed Income FIX workflows, strong database, Linux and Windows Server knowledge to manage all aspects of client connectivity. This role will be predominantly based on the Fixed Income desk working directly with the sales people and interacting with technical teams across the Liquidnet membership. This is an exciting opportunity to join an expanding team focused on developing a strategically important Fixed Income business within Liquidnet.

Role Responsibilities

• Act as a senior escalation point for FIX‐related production issues, providing deep technical analysis and resolution across order entry, routing, execution, and post‐trade workflows.
• Provide expert‐level support for FIX connectivity, session management, and message flow across multiple clients and counterparties.
• Configure, support, and administer FIX sessions (initiator/acceptor), including certification, onboarding, and ongoing maintenance.
• Analyse FIX logs in real time to troubleshoot connectivity issues, message rejects, sequencing problems, latency, and message integrity.
• Troubleshoot end‐to‐end trade flow issues, including drop copy, allocation, and post‐trade FIX workflows.
• Support MTF member configuration and administration, ensuring FIX settings align with product and regulatory requirements.
• Perform and oversee regional start‐of‐day health checks, ensuring FIX gateways, processes, and client connectivity are operational.
• Work closely with Development, Low Touch, and Infrastructure teams to drive root cause analysis and permanent fixes.
• Partner daily with Sales, Trading, and external clients on FIX‐related queries, incidents, and enhancements.
• Own and drive incident management for FIX issues, including detailed documentation, trend analysis, and preventative actions.
• Support release testing, FIX certification cycles, and major platform upgrades, including out‐of‐hours or weekend work where required.
• Act as a subject‐matter expert, mentoring junior analysts and improving FIX support processes and runbooks.

Qualifications / Skills

Essential

• Strong hands‐on production support experience within a financial institution or trading venue, with strong FIX ownership.
• Proven expert‐level knowledge of the FIX protocol, including message types, tags, sequencing, session states, and custom extensions.
• Extensive experience setting up, certifying, and supporting FIX sessions for buy‐side, sell‐side, and OMS/EMS clients.
• Strong understanding of FIX versions (4.2, 4.4, 5.0 SP2) and handling of custom tags and venue specific implementations.
• Deep experience troubleshooting FIX connectivity issues and analysing FIX logs under production pressure.
• Solid understanding of Fixed Income products and trading workflows.
• Strong Unix / Linux skills for log analysis, scripting, and operational support.
• Working knowledge of at least one relational database (MSSQL, Oracle, Sybase, MySQL/MariaDB) with strong SQL query capability.
• Good understanding of Windows Server environments.
• Strong grasp of networking fundamentals, including firewalls, routing, and latency considerations.

Desirable

• Previous experience working at, or closely with, an OMS or EMS vendor.
• Experience supporting message‐based / event‐driven architectures (e.g. Solace, TIBCO, Kafka).
• Hands‐on experience with FIX drop copy, allocations, and post‐trade workflows.
• Exposure to Fixed Income order routing.
• Experience leading FIX certification and client onboarding end‐to‐end.
• ITIL Foundation certification and experience working within an ITIL framework.
• Experience with scripting or programming languages (e.g. Python, Bash, Perl) for automation and analysis.

Company Statement

We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That's why we're building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute.

TP ICAP connects people, platforms, ideas, and insight across the world’s financial, energy and commodities markets. As a global leader in market infrastructure and data-led solutions, we enhance market access, increase efficiencies, and unlock possibilities.