C++20 Specialist - Capital Markets Tech Lead

Lseg; Województwo mazowieckie; On-site; PLN 382,000 - 637,000; Full time

Benefits offered by this job

26 weeks parental leave

Healthcare

Retirement planning

Wellness allowance

Volunteer days

Job summary

London Stock Exchange Group (LSEG) is seeking an experienced C++20 Developer to help build the next generation of capital markets technology in Poland. You will contribute across the development lifecycle, designing and deploying high-performance systems that process large, real-time data.

Join a team focused on latency-sensitive, mission-critical applications, work with cutting-edge hardware, and participate in a collaborative environment that values innovation, integrity, and continuous

Qualifications

• 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.

Responsibilities

• Develop high-quality, reusable, and reliable C++20/23 code.
• Problem solve – use code to solve challenging problems in capital markets.
• Collaborate with sales, product development, and client support.
• Level 3 support – analyze and solve complex problems and enhance client service.
• Exchange specialist – research and comprehend exchange rules and formats for market data and order entry systems.
• Work with state-of-the-art hardware (CPUs, NVMe, Solarflare, ExaNIC).
• Research – explore and implement new C++ features and frameworks.

Skills

C++20

Linux

Problem solving

English communication

Collaboration

Job description

London Stock Exchange Group (LSEG) is seeking an experienced C++20 Developer to help build the next generation of capital markets technology in Poland. You will contribute across the development lifecycle, designing and deploying high-performance systems that process large, real-time data.

Join a team focused on latency-sensitive, mission-critical applications, work with cutting-edge hardware, and participate in a collaborative environment that values innovation, integrity, and continuous