Job Description
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 commitment 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.
The Optimisation CoreTech Strats team builds the systems that sit at the heart of Quantile’s client services. As a large, diverse, and highly collaborative engineering team, we are responsible for designing and delivering the infrastructure, applications, and data pipelines that allow financial institutions to securely submit risk and trade data to Quantile.
The Role
We are looking for a med-level software engineer to join our team. In this role, you will contribute to building and enhancing systems that power large-scale optimisation runs used by global financial institutions. You’ll collaborate with colleagues in Product Development and Financial Engineering to deliver reliable, high-quality solutions, while continuing to develop your expertise in infrastructure systems and software engineering.
You will validate and integrate financial data into the optimisation algorithms and ensure results are delivered back to clients in a secure, reliable, and timely way. You will also develop analytics and feedback capabilities that help both our Product management team and clients better understand outcomes and identify ways to improve future optimisation runs through adjustments to inputs, parameters, and workflows.
Our technology stack is centred on Python on the backend, with extensive use of AWS services, and React on the frontend. Data are managed across PostgreSQL (RDS), Redshift/Snowflake, and S3.
Examples of recent projects include:
Expanding the client portal and data pipelines with new services and products
Setting up new connection to trade booking systems and APIs to trade and manage client risk exposure
Setting up a new interactive system – leveraging frontend and backend systems - to simplify client constraints definitions
Key Responsibilities
Design, build, and deliver high-quality software solutions both independently and as part of a wider engineering team
Develop APIs and backend services for scenario generation and integration with quantitative libraries
Evaluate and improve the performance, effectiveness, and reliability of system components
Validate and process client data accurately and securely
Identify and implement opportunities to automate processes and workflows
Generate structured reports and formatted output files for delivery to clients and third-party APIs
What We’re Looking For
3-6 years of experience in software engineering, with strong Python development skills
· Experience working with trade booking, middle-office, or post-trade systems, and familiarity with standards such as MarkitWire, FpML, or FIX protocol
Familiarity building data-intensive applications, including use of PyData stack
Strong problem-solving, communication, and collaboration skills
Familiarity with Unix/Linux, Git, and SQL
Desirable
Knowledge of financial derivatives, clearing and the basics of margin and capital regulatory requirements
Exposure to AI-assisted tools or workflow automation in a secure, responsible engineering environment
Experience across the full software development lifecycle, and understanding of software design principles (including SOLID), clean code practices, and object-oriented programming
Affinity with Java and/or C++ programming
Working With Us
You’ll work in a collaborative, supportive team where knowledge sharing is encouraged
You’ll have opportunities to learn and deepen your expertise in both quantitative methods and software engineering
You’ll be involved in solving real-world problems with tangible impact on financial markets
We value continuous improvement—both in our systems and in how we work together
If you’re excited about this role and feel that you could grow into it, we encourage you to apply. We welcome applicants from a wide range of backgrounds and experiences, and we are committed to building an inclusive environment where everyone can contribute and succeed.
Career Stage:
Senior AssociateLondon Stock Exchange Group (LSEG) Information:
Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.
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.
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.
You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.
LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.
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.
About us
LSEG is one of the world’s leading providers of financial markets infrastructure and delivers financial data, analytics, news and index products to more than 40,000 customers in over 170 countries.
We help organisations fund innovation, manage risk and create jobs by partnering with customers at every point in the trade lifecycle: from informing their pre-trade decisions and executing trades to raising capital, clearing and optimisation.
Backed by more than three centuries of experience, innovative technologies and a team of 25,000 people in over 60 countries, we are driving financial stability, empowering economies and enabling you to grow sustainably.
Our purpose
At LSEG, our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.
The services we provide as a leading global financial markets infrastructure and data provider are critical for economies around the world. The vital social and economic role we play enables sustainable growth for customers, partners, and the communities we all live in.
Our word is our bond. True in 1801. Just as true today.
London Stock Exchange is one of the world’s oldest stock exchanges and can trace its history back more than 300 years. LSEG was created in October 2007 (as the London Stock Exchange Group) when London Stock Exchange merged with Milan Stock Exchange, Borsa Italiana.
Our values
Our purpose is the foundation on which our culture is built. At LSEG, our values are Integrity, Partnership, Excellence, and Change. Underpinning our purpose, our values articulate how we work with customers, partners, and each other. They go to the heart of who we are and guide our decision making and everyday actions.
What we do
LSEG is a leading global financial markets infrastructure and data provider that operates connected businesses to serve customers across the entire financial markets value chain.
With capabilities in data, indices and analytics, capital formation, trade execution, clearing and risk management, we operate at the heart of the world’s financial ecosystem and enable the sustainable growth and stability of our customers and their communities.
Together, our five business divisions – Data and Analytics, FTSE Russell, Risk Intelligence, Capital Markets and Post Trade – offer customers seamless access to global financial markets, across the trading lifecycle.
Our key locations
LSEG is headquartered in the United Kingdom, with significant operations in over 60 countries across Europe, the Middle East, Africa, North America, Latin America, and Asia Pacific.
Workplace Initiatives
- Programme for parents returning to work after Parental Leave? Yes
- Leadership development programmes? Yes
- Mentoring programmes? No
- Coaching Progammes - Yes
- Employee-led diversity networks? Yes
- Internal women's networking groups? Yes
-Open to discussing flexible work arrangements at interview stage? Yes
Global Parental Leave: 26 weeks
Minimum weeks tenure required to be eligible for paid maternity leave: Global Parental Leave: 12 months / 52 weeks
No. of weeks paid paternity leave at full salary: Global Parental Leave: 26 weeks
Minimum tenure required to be eligible for paid paternity leave: Global Parental Leave: 12 months / 52 weeks
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Gender Pay Gap |
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2023? |
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Average pay gap: |
N/A* Please see Non-identifiable gender pay gap |
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Median pay gap: |
N/A* Please see Non-identifiable gender pay gap |
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Average bonus gap: |
N/A* Please see Non-identifiable gender pay gap |
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Median bonus gap: |
N/A* Please see Non-identifiable gender pay gap |
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Non-Identifiable gender pay gap |
1.2% Find out more in our LSEG Sustainability Report 2023 |
Signatory of the UK Women in Finance Charter? Yes - since 2016
Targets to raise the number of women in leadership? Yes - LSEG achieved our goal of 40% female representation in senior leadership positions globally by December 2022. We remain committed to maintaining at least 40% female representation in senior leadership.
Targets to raise the number of BAME individuals in leadership? Yes - 25% underrepresented ethnic groups in senior leadership roles (ExCo and Group Leaders) by 2027
Listed in the Bloomberg Diversity & Inclusion Index? No
Returner Programme
As part of our Global Parental Leave offering, from 1st July 2024 all parents returning from any type of family leave (Global Parental Leave, UK Maternity, Paternity, Adoption or Shared Parental Leave) are eligible to an eight-week phased return to work, working 80% of normal hours at full pay. Additionally, LSEG is introducing enhanced leave to support families whose children require neonatal care.
Other Programmes
We offer a wide range of opportunities for ambitious graduates and students to start a dynamic and rewarding career in global financial markets. You can join us on an Internship or Graduate programme, which provides a formal learning experience or directly into Entry level positions.
Graduate programmes
Our graduate programmes, for final year undergraduate or Masters students and recent graduates, sit within Businessor Technology.
From day one you will be aligned to a division, where you will access divisional and global learning opportunities and experiences.
Our sustainable growth as a business means that more than ever before there are opportunities to develop your career in a truly global organisation, which is critical to the successful functioning of global financial markets. The breadth of our business means you will never lack opportunities to learn and grow.
Our Business Programme will allow you to gain valuable experience within one of our Divisions (Capital Markets, Post Trade , FTSE Russel and Data & Analytics) or, alternatively, work across one of our Group functions (People, Corporate Affairs and Marketing, Finance, Strategy or Risk). In the Divisional roles, you may be involved in helping companies to raise capital, developing benchmark ranges and indices, or building and evaluating risk models. In one of our Group functions, you’ll work in a central function to support company goals.
Our Technology Programme will enable you to launch your career in Engineering by contributing to live projects, collaborating with and being mentored by best-in-class talent as you acquire critical skills through on-the-job experiences. You’ll have a meaningful role in harnessing new, exciting technologies, and work on projects aimed at integrating them into our frontline products and operations.
Learning and Development
At LSEG we believe that colleagues own and drive their development. We understand it can be nerve-wracking to embark on a new career and, in some cases, make the transition from education to practice. We will assist you in nurturing a growth mindset and developing foundational and human skills such as financial market value chain, customer centricity, adaptability, innovation, problem solving and stakeholder management as well as specialist skills that are critical to the division that you will be working with.
During the programme we will provide curated learning pathways through leading learning platforms, a chance to connect with subject matter experts within LSEG and the opportunity to pursue a professional qualification that supports to build critical skills relevant to your area of specialisation, aiming to develop your knowledge and skills – with a global and divisional focus. You will also have access to Career Navigator, our brand-new personalised platform which will empower you to define and achieve your career ambitions within LSEG. You will access global and local learning opportunities and experiences, as well as a network of Early Careers peers who will support you as you progress your career journey at LSEG. You will contribute to wider society through CSR and volunteering initiatives as you build connections forming a global community across LSEG.
LSEG is a place where you can take your career in any direction. We believe in the career philosophy of “My Career. My Opportunity. My Future.”, empowering you with the tools and structure needed to broaden your skills. Beyond the programme, you can look forward to opportunities to advance your skills and learning at every stage of your career. Our scale and global presence give you the opportunity to deepen your abilities and expertise and take the next steps on your journey to achieving your career ambitions.
Internship programmes
Our summer internship programme, for penultimate year students, is a unique opportunity to get to know LSEG’s business and to gain an in-depth insight into financial markets.
Whether you apply for the Business or Technology internship, you will understand what a career with LSEG would really be like. The programme has been crafted to enable exploration of potential career pathways at LSEG, to start to build some of the key skills you will need as a graduate and to support you to build self-insight into your strengths and interests.
Our Technology Internship will enable you to launch your career in Engineering. Your technical placement will involve coding, development, and innovation. You’ll have a meaningful role in harnessing new, exciting technologies and working on projects aimed at integrating them into our frontline operations.
Our Business Internship programme will allow you to gain valuable experience within one of our Business Divisions, whilst gaining broader exposure to the wider Group. You’ll gain valuable experience in one of our Divisions (Capital Markets and Post Trade).
Schools and young people
We’re passionate about maximising the opportunities available to children and young people regardless of their background and have set up a number of initiatives that allow us to provide support.
LSEG Foundation
A vital way of delivering our purpose in the community and wider society is through the LSEG Foundation. Working with charity and NGO partners, we deliver a range of programmes across the globe, creating opportunities for those in need to participate in education, employment and enterprise. This is a vast challenge, so we aim to focus our support where we think it can have the greatest impact. Our aim is to help people access economic opportunities and build a secure future with financial independence.
Our programmes vary by geography and need. We create change through a variety of initiatives. These could include helping girls stay in school for longer, as part of a wider strategy to address gender inequality and community education, guiding young adults into secure work, education programmes for financial literacy or supporting individuals in reskilling for a fresh start.
Work experience
We are committed to supporting young people to explore career opportunities, build their employability skills and bridge the gap between education and practice.
Apprenticeship Programme (UK)
Our Apprenticeship Programme currently offer an 18-month accelerated development programme, combining real work experience with away-from-the-desk learning.
Online financial literacy resources
At LSEG, we believe financial literacy opens up options and opportunities. Whether it’s study and career choices now, or how to save and invest money later on in life, understanding how finance works can help build a better future for us all. To help boost the financial literacy of kids across the globe we offer a wealth of online resources and videos to help you learn more about the world of finance.