Senior Client Connectivity Engineer

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
• Analyze 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 ATS member configuration and administration, ensuring FIX settings align with product and regulatory requirements
• 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
• 5+ years hands‑on production support experience within a financial institution or trading venue, with stro

Benefits

Additional Information

Group Overview 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 is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world's leading provider of OTC data, and an award winning all-to-all trading platform. 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. About Liquidnet 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' 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. Our purpose guides every decision we make, from the tools we develop to the relationships we nurture with our Members. 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 salespeople 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. This will be a varied role involving working on a multitude of cross-platform market-leading technologies to support the running of our bespoke trading platform. The successful candidate will also contribute to front-to-back support duties on the Fixed Income platform which will include the daily support of the platform, configuring new members, managing front-end upgrade rollouts and testing of new functionality prior to release to members. The successful candidate should possess a positive 'can-do' attitude and an intuitively high level of customer service in their approach. This will complement strong FIX, database (MYSQL), as well as Windows Administration and Networking troubleshooting skills (which may also involve firewall/routing issues).

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