Principal Software Engineer - Hybrid -Datafeed Server

FactSet

Full-time Computer Occupations
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Location
London, England, United Kingdom
Posted
June 12, 2026

Job Description

Responsibilities

:
  • Develop, test, and deploy software and services to end users.
  • Design and implement user-friendly APIs that deliver streaming real-time market data.
  • Participate in and contribute to design reviews, code reviews, and brainstorming sessions.
  • Communicate and collaborate with product developers, QA, API users, and other stake holders.
  • Respond to bug reports and feature requests.
  • Participate in an on-call rotation.

    • Minimum Requirements:

  • 8+ years of professional software engineering experience

    • Critical Skills:

  • 5+ years of experience developing software in C or C++ in a Linux environment. 
  • Fundamental understanding of network programming
  • Ability to communicate effectively with peers within FactSet and with external users.
  • Track record of success developing and shipping software on time.

    • Additional / Desired Skills

  • Familiarity with ZeroMQ

    • Job Details

    • Job Type
      Full-time
    • Category
      Computer Occupations
    • Date Posted
      June 12, 2026
    • Application Deadline
      July 22, 2026