We have an immediate opening for an experienced C++20 Developer. We’re building the next generation of capital markets technology. Global capital markets are an ocean of fast-moving, interrelated, and complex data. We are looking for passionate and enthusiastic problem-solvers with expertise in capital markets data to join us as we continue providing technology innovation and support to the world’s leading global capital markets companies. Current strategic pursuits In this role, you will be part of a talented and open-minded software team that works on mission-critical applications within capital markets technology. You will have the opportunity to contribute to all phases of the development lifecycle – from suggesting the use of emerging technologies to designing, integrating, and upgrading complex architecture. We’re looking for outstanding C++20 developers interested in employing the latest features of C++20 to increase our platform’s functionality across asset classes, data sets, and business verticals. Developers on our team have the rare opportunity to work on challenging and important problems as they transform high-quality raw data into actionable insight. Duties include Develop – Write extremely high-quality, reusable, and reliable C++20/23 code Problem solve – Use code to solve challenging problems that affect a wide range of capital markets players Collaborate- Interact with adjacent business functions including sales, product development, and client support Level 3 support – analyze and solve complex problems, proactively work to enhance our support functionality, and client service experience. Occasional technical conversation with customers. Exchange specialist – Research and comprehend exchange rules and formats for both public market data and order entry systems New technology – Work with state-of-the-art hardware (top-line CPUs, NVME, Solarflare, ExaNIC) Research – Explore and implement new advanced C++ features and frameworks Work 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 Nice to have Experience with Solarflare, low-latency NICs and FPGA Experience with market data capture Experience with perf and Kernel Bypass technologies Knowledge of network protocols and familiarity with tools like tcpdump and Wireshark Experience with sanitizers like, ASan, MSan, UBSan, Tsan Career Stage: Manager Compensation Information: LSEG is committed to offering competitive Compensation and Benefits. The anticipated annual gross base salary for this position is between 86,700 € - 144,500 €. Please be aware base salary ranges may vary by geographic location. In addition to our offered base salary, this role is eligible for our Annual Bonus Plan (”bonus plan”). Target Bonus % will be commensurate with role level and posted career stage. Individual salary will be reflective of job-related knowledge, skills and equivalent experience. Benefits Information: LSEG roles (excluding internships) are typically eligible for inclusion in our LSEG Benefits program. To view the benefits available for the role you're applying for, please click here. This document provides a list of benefits by country. Simply click on the country where the role is based to view the relevant details. If you have specific questions or would like further details, these can be discussed during your interview. LSEG unlocks the power of markets to create opportunities across the global economy. Through our connected network of market infrastructure, data and analytics, we help customers access capital, manage risk and make confident decisions. Our insights bring clarity to complex markets, and our trusted services ensure resilience and stability. With deep expertise and global scale, we partner with customers to drive innovation and shape the future of finance. Few organisations operate at the scale, complexity and reach of LSEG. Here, you’ll work alongside experts, be inspired to deliver your best work and help shape what’s next for our business and the global economy. Guided by our values of Integrity, Partnership, Excellence and Change, we bring together diverse perspectives, encourage fresh thinking, and create an environment where learning never stops. Join more than 26,000 colleagues across 60 countries, supporting customers in over 170 countries. Alongside flexible ways of working, you'll have access to benefits that support your wellbeing and your future, including 26 weeks' parental leave, healthcare, retirement planning and a wellness allowance. Through the LSEG Foundation and two paid volunteering days each year, you’ll also have opportunities to get involved in your local community and support causes that matter to you. We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject. By clicking on "Apply", the process for submitting an application will begin. If you have any questions prior to clicking "Apply", please contact the recruiter. If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice. LSEG. Make more possible. If you want to apply for a job, please click the Apply button. You will then be redirected to our Careers sign-in page where you can enter your existing credentials or set up an account with us. If there is nothing that currently suits you, feel free to send us your Resume/CV LSEG (London Stock Exchange Group) is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our culture of connecting, creating opportunity and delivering excellence shapes how we think, how we do things and how we help our people fulfil their potential. Our Data & Analytics, Capital Markets and Post Trade divisions have a combined power that provides a comprehensive, integrated suite of trusted financial market infrastructure services to help our customers pursue their ambitions. Explore our divisions LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across Europe, the Middle East, Africa, North America, Latin America and Asia Pacific. Find out more Get to know some of our people who are pushing the boundaries of technology, finance and more around the world.

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