Senior Quant Risk Developer
Confirmed on the employer's own hiring board on Nov 3, 2026. First seen by Alion on Oct 22, 2026. London Stock Exchange Group scores B on the Alion truth index.
Part of the London Stock Exchange Group (LSEG), LCH is a leading clearing house, serving major international exchanges and platforms, as well as a range of OTC markets. In particular, LCH is a leading CCP in Repurchase agreement (Repo) businesses, providing clearing services for most European Government debts (refinancing/repo transactions).).
LCH works closely with market participants to identify and develop innovative clearing solutions.
A sound and efficient margin algorithm is essential in both meeting the risk standards of the company and making the service appealing from a trading perspective.
The Repo Risk platform (MLM) is a common platform shared between different Business Lines.
Each Business Line has its own delivery team. A centralised architecture and integration team defines technical guidelines and guaranties harmonious integration of the developments performed by each Business Lines dev teams.
Based in London, the RepoClear SA Risk IT team works directly with and under the direction of the Product Owner team based in Paris and also in close relation with the centralised architecture teams.
As part of the RepoClear Business lines, the Business “Risk IT” team is accountable for:
- Designing and Building Risk IT systems
- Automating continuous development / continuous integration of First line Risk IT framework
- Implementing software applications for First Line Risk IT systems
- Implementing margin algorithms (Pricing models, risk models and parameter calibration) in a standard consistent with EMIR regulation and LCH internal policies
- Testing the system
- Writing business requirement for IT teams
- Develop and implement quantitative solutions
- Proto-typing and testing (UAT)
The RepoClear SA business Line is responsible for the design and maintenance of the MLM platform and is looking to onboard a senior quant risk developer to help in maintaining the Margin Liability and Investment Risk frameworks.
Key Responsibilities
- Design and development of the backend engine for Risk IT and clearing
- Full cycle of testing from the theoretical model to production
- Implementation of Market Data and Risk related projects
- Gathering of business requirements and agreeing between IT, App Support teams, businesses teams in RCL and Exchanges.
- Analysis and implementation of performance improvements to the existing risk models across different products
- Maintenance and support of the existing risk libraries and risk simulators
- Provide 3rd line support for Risk Applications
Working experience
- Background in counterparty or market risk, including a strong grasp of risk calculation methodologies..
- Proven track record in implementing and maintaining stress and Value-at-Risk (VaR) models
Education
- Degree in a numerate discipline
IT Skills
- 7+ years of experience in the software development
- Strong programming skills: Java 21, Spring, REST
- Experience in risk or a quantitative role.
- Experience in delivering IT solutions from the design to production
- Sound conceptual / technical knowledge of modern IT infrastructure stack
Soft Skills
- Able to work Independently, problem solving skills
- Effective communication skills (written and oral).
- Ability to work with team delivery environment.
Career Stage:
Senior Associate
Compensation Information:
LSEG is committed to offering competitive Compensation and Benefits. The anticipated annual gross base salary for this position is between 119,200 zł - 188,400 zł. 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.
London 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.
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