Python & FIX Connectivity Trading Support Engineer

Job Description \n \n 6-Month Initial Contract \n Inside IR35 \n London (Onsite) \n Long-Term Programme with Potential to Run for 3 Years \n \n We are seeking an experienced Python & FIX Connectivity Trading Application Production Support Specialist to join a high-performing team supporting global derivatives trading platforms. This role is ideal for candidates with a strong background in Front Office trading application support, FIX connectivity, and capital markets environments. \n Key Responsibilities \n \n Provide production support for business-critical Front Office trading applications. \n Investigate, troubleshoot, and resolve issues across the trading environment. \n Perform root cause analysis and implement long-term solutions to improve platform stability. \n Respond rapidly to incidents to maintain uninterrupted trading operations. \n Proactively monitor systems and drive reliability and resilience improvements. \n Manage and support critical end-to-end trading workflows. \n Collaborate closely with trading, engineering, infrastructure, and product teams. \n Act as a subject matter expert for trading systems initiatives. \n Participate in an on-call rota, including occasional US hours support. \n \n Required Experience \n \n Minimum 3 years' experience supporting Front Office trading applications in production environments. \n Minimum 1 year's experience supporting FIX connectivity to exchanges or client-side FIX flows. \n Strong understanding of the trading life cycle, including: \n \n Order capture and execution \n Allocations \n Settlement processes \n Compliance requirements \n \n Experience working within Commodity Trading, Capital Markets, or Trading & Supply environments. \n Familiarity with algorithmic trading workflows and technologies. \n Strong analytical and problem-solving capabilities. \n \n Technical Skills \n \n Strong Scripting and automation capabilities using: \n \n Python \n Shell Scripting \n Similar programming languages \n \n Experience with FIX protocol and FIX Engineering. \n Strong understanding of application deployment and production support best practices. \n Experience with exchange and vendor certification processes. \n Knowledge of EMS/OMS platforms and third-party trading networks, including: \n \n TT (Trading Technologies) \n NYFIX \n Bloomberg \n TradingScreen \n \n Experience supporting messaging systems and investigating networking issues including: \n \n TCP \n Multicast \n \n Experience supporting market data distribution platforms and Real Time data environments. \n Knowledge of multicast traffic management, arbitration, and message queuing. \n Experience with time-series databases and frameworks such as: \n \n kdb+ \n Shakti \n \n Understanding of Real Time market data feed handlers and enterprise market data platforms. \n Knowledge of algorithmic trading governance, audit, compliance, and RTS6 regulations is highly desirable. \n \n Personal Attributes \n \n Excellent communication skills with the ability to work effectively with traders, developers, and stakeholders. \n Comfortable operating in a fast-paced, high-pressure trading environment. \n Proactive, self-motivated, and solution-oriented. \n Strong ownership mindset with a focus on operational excellence. \n Able to manage changing priorities and tight deadlines while maintaining service quality. \n \n If you have strong trading systems support experience, FIX expertise, and a passion for maintaining high-availability trading environments, we'd be keen to speak with you.