Caxton Associates

Trading Support Engineer

Caxton Associates

full-time

Posted on:

Location Type: Hybrid

Location: London • United Kingdom

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Job Level

Junior

Tech Stack

PythonSQL

About the role

  • Monitor and support trade, order and execution flow across FIX connections, internal order management systems, and external brokers and trading venues.
  • Analyse FIX message traffic (orders, cancels, rejects, executions) to diagnose routing or workflow issues.
  • Support Bloomberg AIM order and execution workflows.
  • Investigate trade breaks, discrepancies, and missing or delayed executions.
  • Assist in troubleshooting session drops, connectivity issues, and counterparty rejects.
  • Coordinate with brokers, trading desks, and operations teams to resolve daily production issues.
  • Escalate incidents appropriately and provide clear status updates to stakeholders.
  • Maintain documentation and contribute to operational runbooks and procedures.

Requirements

  • 1–3 years of experience supporting trading, middle office, or financial systems.
  • Basic understanding of FIX messaging and the order to trade lifecycle.
  • Familiarity with financial markets and execution workflows.
  • Strong analytical and problem-solving skills.
  • Basic scripting ability (Python preferred).
  • Proficient with log analysis and monitoring tools.
  • Experience with version control systems (e.g. Git).
  • Some knowledge of SQL and relational database schemas would be highly beneficial.
  • Strong written and verbal communication skills.
  • Ability to work calmly and efficiently in time-sensitive trading environments.
  • Displays and operates at the highest degree of ethics and integrity.
  • **Candidate Background:**
  • Degree in Computer Science, Physics, Mathematics or a related field.
  • Prior internship or experience in a bank, hedge fund, broker, or trading environment is preferred.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
FIX messagingorder to trade lifecyclescripting (Python)log analysismonitoring toolsversion control (Git)SQLrelational database schemasanalytical skillsproblem-solving skills
Soft Skills
written communicationverbal communicationcalm under pressureefficiency in time-sensitive environmentsethicsintegrity