FIX Client Onboarding, Senior - Part-Time

Key responsibilities including but not limited to:

• Serve as the senior technical consultant for FIX Protocol connectivity (FIX 4.2 / 4.4), electronic trading platforms, and messaging infrastructure.
• Provide Level 2/Level 3 production support for trading applications, ensuring maximum system availability and minimal downtime.
• Lead the investigation, troubleshooting, and resolution of production incidents, connectivity issues, and client-reported problems within defined service levels.
• Conduct root cause analysis (RCA), recommend permanent fixes, and drive continuous service improvements to enhance platform stability.
• Collaborate with clients, trading desks, business stakeholders, vendors, and internal engineering teams to resolve complex technical issues.
• Manage end-to-end client onboarding, FIX certification, connectivity testing, session configuration, and production readiness.
• Monitor application health, trading connectivity, and system performance using logs and monitoring tools to proactively identify operational risks.
• Perform Unix/Linux system administration, diagnostics, scripting, and operational support across production environments.
• Participate in system implementations, infrastructure upgrades, production deployments, and release management while ensuring minimal business disruption.
• Develop and maintain technical documentation, operational procedures, knowledge articles, and support runbooks.
• Provide technical leadership, mentor junior consultants, and contribute to best practices for support processes and operational governance.
• Work effectively under tight project timelines and within high-pressure production environments supporting global financial markets.

Job requirements:

• Bachelor's Degree in Computer Science, Information Technology, Engineering, or a related discipline.
• 5–10+ years of experience supporting electronic trading systems, FIX connectivity, or capital markets applications.
• Strong working knowledge of FIX Protocol 4.2 and 4.4, including session management, order lifecycle, and message flows.
• Solid experience supporting mission-critical production environments within financial services or capital markets.
• Good knowledge of Unix/Linux operating systems, shell scripting, log analysis, and troubleshooting methodologies.
• Experience with client onboarding, FIX certification, connectivity testing, and production implementation.
• Strong analytical, troubleshooting, and root cause analysis skills.
• Excellent stakeholder management with proven experience engaging clients, business users, vendors, and technology teams.
• Ability to manage multiple priorities and deliver high-quality outcomes within tight deadlines.
• Excellent written and verbal communication skills.