Principal Software Engineer - Hybrid -Datafeed Server

FactSet • London, England, United Kingdom • Posted May 30, 2026

Location London, England

Job Type Full-time

Category Computer Occupations

Posted May 30, 2026

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
        

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