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Lead Performance Optimization Software Engineer

LSEG (London Stock Exchange Group)
795 Office Parkway (Show on map)
Mar 17, 2025

The real time Lead Performance Optimization Engineer ensures that real time market data applications are delivering data with optimized performance and latency while carrying the world's most critical financial data. Our high performance software must deliver from exchanges spread across the globe to our clients in just a few milliseconds while normalizing the data into a common format.

This role will rapidly become an expert on the latest proprietary LSEG technology and performance metrics while using performance testing environments to identify and implement improvements to the throughputs in the system.

Responsibilities:

  • Implement performance and tuning modules for high efficiency and reliability
  • Lead investigations into performance bottlenecks and devise solutions to these problems
  • Research and develop new solutions to software performance challenges bringing to bear a range of technologies
  • Analyze key performance indicators, liaise with Operations, cross function application teams to identify bottleneck and make improvements
  • Act as a technical leader and go to problem solver in the global real time collections team for performance related concerns
  • Drive forward improvements to our frameworks, infrastructure, and process to better manage capacity and efficiency in our system
  • Lead and mentor other developers on the team to ensure that we can tackle capacity challenges at scale.
  • Provide a simplified view of capacity and system performance status for senior management

Qualifications

  • 8+ years of full life-cycle software development experience
  • 5+ years of object oriented development in C++
  • Experience optimizing efficiency of real time systems
  • Strong understanding of the Linux operating system
  • Superb communication skills (written and oral)
  • Ability to collaborate in a team focused environment
  • Excellent analytical skills and a passion for solving problems.
  • Ability to thoroughly test and debug code using test driven development
  • Ability to suggest/research new technologies and quickly adapt to change
  • Ability to work with both Technical Architects and Product Owners in order to build to specification
  • Object oriented design

Desired Skills

  • Exposure to Agile methodologies
  • Experience with automated testing
  • Knowledge of scripting languages Python, Unix or Powershell shell scripts desirable
  • Adept at software design
  • Experience with debugging multi-threaded applications
  • Knowledge of/experience with design patterns
  • Real passion for continued learning and development
  • Understanding of financial markets, market data
  • Low Latency financial market data systems

LSEG 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 purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

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.

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.

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