C++20 Specialist

LSEG (London Stock Exchange Group)

. Develop extremely high-quality, reusable, and reliable C++20/23 code .

Posted 10/21/2026full-timeToronto • CanadaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing high-quality C++20/23 code within a Linux environment, with a strong focus on problem-solving and enhancing client service experiences. Proficient in collaborating across teams and engaging in technical discussions with clients while leveraging advanced technologies and hardware.

Highest-signal resume keywords

C++20 DevelopmentLinux Environment ExperienceProblem-Solving SkillsSuperb English CommunicationNetwork Protocol Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C++20C++23Problem SolvingMarket Data CapturePerf TechnologiesKernel Bypass TechnologiesASanMSanUBSanTSan

Soft Skills

Strong Work EthicCommitment to Tasks

Tools & Technologies

SolarflareLow-Latency NICsFPGATcpdumpWireshark

Industry Keywords

Capital MarketsPublic Market DataOrder Entry Systems

Tech Stack

Tools & technologies

LinuxC++

About the role

Key responsibilities & impact

Develop extremely high-quality, reusable, and reliable C++20/23 code
Solve challenging problems affecting capital markets participants
Collaborate with sales, product development, and client support
Provide Level 3 support by analyzing and solving complex problems
Enhance support functionality and client service experience
Participate in occasional technical conversations with customers
Research and understand exchange rules and formats for public market data and order entry systems
Work with top-line CPUs, NVMe, Solarflare, and ExaNIC hardware
Research and implement advanced C++ features and frameworks
Contribute across the development lifecycle, including emerging technology evaluation, architecture design, integration, and upgrades

Requirements

What you’ll need

Excellent C++ skills, including hands-on experience with C++20 or later
Extensive experience with C++20 in a Linux environment
Strong work ethic and commitment to seeing tasks through
Excellent problem-solving skills
Superb English communication
Experience with Solarflare, low-latency NICs, and FPGA (nice to have)
Experience with market data capture (nice to have)
Experience with perf and Kernel Bypass technologies (nice to have)
Knowledge of network protocols and familiarity with tcpdump and Wireshark (nice to have)
Experience with ASan, MSan, UBSan, and TSan sanitizers (nice to have)

Benefits

Comp & perks

Healthcare
Retirement planning
Paid volunteering days
Wellbeing initiatives
Reasonable accommodations for religious practices, beliefs, and mental or physical disabilities
Fundraising and volunteering opportunities through the LSEG Foundation