Quantitative Developer

Job DescriptionLondon Stock Exchange Group is looking for an application developer to join a team of Fixed Income Analytics Application Development. The candidate is expected to work closely with other developers, making efficient and effective use of AI-assisted development tools, to drive application development for Yield Book product suite, including Excel Add-In, Structuring Tool and API. The Yield Book is a fixed income analytics system widely used by financial institutions and this position plays a vital role in the development of our products.Main ResponsibilitiesDesign and develop fixed income analytics applications, used by front office for trading and investment decision-makingImplement and enhance the Structuring Tool for securitized products, used for Securitized Product analysis and marketingMaintain and modernize the existing codebase while preserving product stabilityUse AI coding assistants and agentic tools to accelerate development, testing, and code understandingPartner with product management and client service teams to solve product issues and deliver new featuresCreate unit tests and integration tests to ensure software meets requirementsWork closely with the Quality Engineering team to ensure the high quality of the deliverablesEssential Skills and Experience RequiredAn advanced degree (master’s or higher) in a quantitative field such as Financial Engineering, Computer Science, Physics, Engineering, Mathematics, etc.Excellent programming skills in one of the languages (C/C++, .NET, Java or Python)1 to 3 years of financial industry experience or academic trainingHands-on experience using AI coding assistants (e.g. GitHub Copilot, Claude, Cursor) in real development workStrong code review skills applied to AI output — quickly assessing, validating, refining and testing AI-generated codeExperience with automated testing and version controlStrong teamwork and communication skills, with the ability to collaborate effectively with cross-functional teamsExcellent problem-solving skills and a proactive approach to identifying and resolving issuesWillingness to learn and develop deep financial knowledgeCareer Stage:Senior AssociateCompensation/Benefits Information:LSEG is committed to offering competitive Compensation and Benefits. The anticipated base salary for this position is $98,500 - $164,100.Please be aware base salary ranges may vary by geographic location, city and state. In addition to our offered base salary, this role is eligible for our Annual Incentive Plan (AIP/”bonus plan”). Target AIP rates will be commensurate with role level and posted career stage. Individual salary will be reflective of job related knowledge, skills and equivalent experience. LSEG roles (excluding internships and part-time roles of less than 20 hours per week) are typically eligible for inclusion in our LSEG Benefits program, which includes offerings of: Annual Wellness Allowance, Paid time-off, Medical, Dental, Vision, Flex Spending & Health Savings Options, Prescription Drug plan, 401(K) Savings Plan and Company match. LSEG’s Benefits plan also includes basic life insurance, disability benefits, emergency backup dependent care, adoption assistance commuter assistance etc.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.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.SummaryLocation: Buffalo - Fountain PlazaType: Full time