C++ 20 Specialist

LSEG (London Stock Exchange Group)

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

Posted 11/11/2026full-timeMilan • ItalyMid-LevelSenior💰 €86,700 - €144,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in C++20/23 development within a Linux environment, focusing on high-quality code and problem-solving in capital markets. Proficient in collaborating with cross-functional teams to enhance client service and support functionality.

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++20Code QualityComplex Problem SolvingMarket Data CapturePerf TechnologiesKernel Bypass TechnologiesSanitizers (ASan, MSan, UBSan, Tsan)

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

Write extremely high-quality, reusable, and reliable C++20/23 code
Use code to solve challenging problems affecting capital markets players
Interact with adjacent business functions including sales, product development, and client support
Analyze and solve complex Level 3 support problems
Proactively enhance support functionality and client service experience
Participate in occasional technical conversations with customers
Research and comprehend exchange rules and formats for public market data and order entry systems
Work with state-of-the-art hardware including top-line CPUs, NVME, Solarflare, and ExaNIC
Explore and implement new advanced C++ features and frameworks
Contribute across the development lifecycle, including emerging technology selection, architecture design, integration, and upgrades

Requirements

What you’ll need

Experienced C++20 Developer
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 a 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 tools like tcpdump and Wireshark (nice to have)
Experience with sanitizers such as ASan, MSan, UBSan, and Tsan (nice to have)

Benefits

Comp & perks

Annual Bonus Plan
LSEG Benefits program
26 weeks' parental leave
Healthcare
Retirement planning
Wellness allowance
Two paid volunteering days each year
Flexible ways of working
Reasonable accommodations for religious practices, beliefs, and mental health or physical disability needs