Principal Developer

ABOUT US:

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.

LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG’s ticker symbol is LSEG.

OUR PEOPLE:

People are at the heart of what we do and drive the success of our business. Our culture of connecting, creating opportunity and delivering excellence shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.

We know that real personal growth cannot be achieved by simply climbing a career ladder – which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organisation spanning 70 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers.

ROLE SUMMARY:
We are seeking a Principal Developer with a strong Java background and proven exposure to C++ to architect, design, and build our flagship FX Maching Venue. This role demands deep expertise in developing trading systems and knowledge of FX products. A consistent track record of leading development teams in a multifaceted, regulated financial environment.

WHAT YOU'LL BE DOING:

Software Architecture & Development:

• Lead the design and development of a high-performance FX Exchange application using Java as the primary language, with some background in C++.

• Drive the technical vision and ensure robust, scalable, and secure implementation of FX trading solutions across FX Spot and FX Swaps products.

• Architect solutions that meet key operational, risk, and regulatory requirements.

• Optimize Java applications and tune operating systems to achieve peak performance in high-frequency trading environments.

Process Optimization & Quality Assurance:

• Implement efficient software development processes to ensure the delivery of high-quality, maintainable services.

• Establish and implement standard practices for code quality, automated testing, and continuous integration/deployment.

Team Leadership & Collaboration:

• Lead and mentor Agile development teams, guiding them through technical challenges and encouraging a collaborative, high-performance environment.

• Work closely with multi-functional teams, including Architecture, Product, and Sales, to align technical solutions with business objectives and customer needs.

• Serve as the technical lead and domain expert in FX trading systems, providing strategic insights and direction across the organization.

Innovation & Impact:

• Orchestrate the development of an FX Exchange application that is both innovative and best-in-class, directly contributing to growth opportunities.

• Ensure that all solutions are aligned with the overall technical strategy and deliver measurable impact through improved system performance and user satisfaction.

Critical Deliverables

• Delivery of a robust, scalable FX Matching with comprehensive modules covering FX Spot, and Swaps.

• Continuous improvements in software quality, performance metrics, and team productivity.

Key Performance Indicators

• Team velocity and sprint burndown rates

• Cycle time and cumulative flow efficiency

• Code quality and testing metrics

• Operational and defect metrics

• Overall performance of the FX Matching application

WHAT YOU'LL BRING:

• A degree in Computer Science, Software Engineering, Electrical Engineering, or a related field.

• Significant hands-on experience in low latency Java/C++ development.

• Understanding of programming low-latency state machines, FIX protocol, binary protocols for market data.

• In-depth knowledge of multi-threading and concurrency in high-frequency trading environments.

• Extensive experience in building FX trading applications, including FX Spot, and FX Swaps.

• Proficient in Agile development methodologies and with continuous integration/continuous deployment (CI/CD) tools (e.g., Git, GitLab, Bamboo, BitBucket, Sonarqube).

• Hands-on experience with Application Security Tools (e.g., Veracode, Coverity, Blackduck) and a pragmatic approach to automation.

• Proven working knowledge of Linux environments.

Business and Sector Expertise

• Direct experience in the FX industry and regulated financial environments.

• Broader exposure to financial markets is advantageous.

• Validated leadership skills and technical thought leadership.

• Experience in stakeholder management and coordinating vendor or team resources is a plus.

Personal Skills and Capabilities

• Excellent verbal and written communication skills, capable of explaining complex technical concepts to both technical and non-technical partners.

• Analytical and results focused, with a strong sense of innovation and accountability.

• A collaborative approach with a focus on customer needs and continuous improvement.

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.