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From the employer's careers site First seen 1 Nov 2026

C++ Software Engineer

Salary

$95,700 - $159,700 per year

Apply on London Stock Exchange Group (LSEG)

Description

We are seeking a C++ Software Engineer to join our Real-Time Distribution Development team within LSEG's Data and Analytics division.

The team plays a vital role in supporting LSEG's financial data distribution and fanout components, designing, implementing, and continuously improving complex, low-latency, high-throughput software.

Responsibilities:

  • Design software modules; implement in C++; perform unit testing, integration testing, and performance testing; package and configure software.
  • Participate in code and design reviews.
  • Contribute to product and internal documentation, including technical specifications, software documentation, and unit test plans.
  • Assist in resolving field problems as needed.
  • Partner with Quality Assurance to ensure high-quality software and write Robot framework test cases using Python-based keywords.

Qualifications:

  • 3+ years of computer software development experience.
  • Experience developing in C++ and/or other Object-Oriented programming languages in a multi-threaded environment and real-time streaming-type applications.
  • Strong working experience and troubleshooting skills in Linux.
  • Familiarity with network programming and strong knowledge of networking concepts and protocols (TCP/IP, UDP, multicast).
  • Strong written and verbal communication skills.
  • Experience with Cloud technology (AWS/AZURE) is a plus.
  • Experience with Java multithreaded programming is a plus.

Compensation and Benefits:

  • Anticipated base salary: $95,700 - $159,700.
  • Eligible for Annual Incentive Plan (AIP).
  • Benefits include Annual Wellness Allowance, Paid time-off, Medical, Dental, Vision, Flex Spending & Health Savings Options, Prescription Drug plan, 401(K) Savings Plan, and Company match.

Skills

Required

  • C++
  • Object-Oriented programming
  • Linux
  • network programming
  • TCP/IP
  • UDP
  • multicast

Nice to have

  • Cloud technology (AWS/AZURE)
  • Java multithreaded programming
  • Python

Ready to apply?

You apply with the employer directly. Their original posting is here: https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/USA-St-Louis-795-Office-Pkwy/Software-Engineer_R0103722-1

Apply on London Stock Exchange Group (LSEG)