Trading Systems Engineer (Python | Equity Derivatives)
As the founding entity of RAINBOW PARTNERS, Quanteam is a consulting firm specialized in Banking, Finance, and Financial Services. Through our core human values – proximity, teamwork, diversity, excellence – our 1000 expert consultants, hailing from 35 different nationalities, collaborate across 13 international offices: Paris, Lyon, New York, Montreal, London, Brussels, Luxembourg, Geneva, Lisbon, Porto, Casablanca, Madrid and Singapore.ContextOur client, a leading Global Markets firm based in Chicago, is seeking a technical Trading Application Engineer to join its Front Office Business Support & Monitoring IT team. This is a hands-on, engineer-first role providing Level 1/2 production support across mission-critical trading, booking, pricing, and risk management systems for Equity Derivatives.Your Role· Own Level 1/2 production support: incident triage, root cause analysis, escalation, and resolution across trading and booking platforms (Fidessa, Sophis, Dash, Loanet, etc.)· Monitor, diagnose, and resolve issues in Unix/Linux environments using shell scripting, log analysis, process inspection, and job scheduling tools· Write and maintain Python scripts for alerting, automation, data reconciliation, and operational tooling· Investigate data and workflow issues using advanced SQL across Oracle, Sybase, and PostgreSQL· Triage and resolve FIX protocol issues across OMS/EMS connectivity· Serve as the primary technical interface for Front Office traders and desk heads· Collaborate with development teams globally on bug fixes, releases, and system enhancementsWhat We're Looking For· Unix/Linux: shell scripting (Bash/KSH), process management, log analysis, job scheduling (Autosys/cron) in a production trading environment· SQL: complex joins, window functions, CTEs, and query tuning across relational databases· Python: solid scripting for operational automation, data reconciliation, and API integrations (pandas, SQLAlchemy, requests)· FIX Protocol: strong knowledge of FIX 4.x/5.0, message-level debugging, session management, order flow troubleshooting· Solid understanding of Equity Derivatives products, trade lifecycle, and familiarity with Equity Finance/Delta One instruments· 3+ years of hands-on application support or production engineering experience in a capital markets environment· Bachelor's degree in Computer Science, Engineering, Mathematics, or a quantitative/finance discipline