Let’s be BrilliantTogether In the Sustainability Index R&D team, you will design and develop investable index strategies focused on ESG, Climate and Sustainability. The successful candidate will be part of a global, dynamic research team responsible for developing index methodologies, conducting quantitative research, and delivering client-driven solutions. The role will also involve participation in client projects, including discussions around index design and methodology. In addition, you will work across a broad range of sustainability-driven investment solutions, including ESG and exclusion-based strategies, climate transition and Paris-aligned indices, optimization-based portfolios balancing sustainability objectives and tracking error, as well as emerging areas such as SDG, biodiversity, and regulatory-driven frameworks. Responsibilities Develop and backtest quantitative index methodologies incorporating ESG, climate, and sustainability signals Design rules-based index strategies and contribute to new product development Analyse and manipulate large datasets using Python (and SQL where applicable) to support research and index construction Collaborate with internal teams (data, product, sales) and contribute to cross-functional projects Participate in client-driven projects, including discussions to refine and implement index methodologies Contribute to research ideas across ESG, climate, and broader sustainability themes Required Qualifications Quantitative finance background (e.g. Financial Engineering, Quantitative Finance, Mathematics, Physics, Statistics or similar) 2–5 years of experience within financial markets (e.g. asset management, index providers, quant research) Strong analytical mindset with hands-on experience or interest in portfolio construction and optimization techniques Postgraduate degree (or equivalent) in a quantitative discipline Proficiency in Python and SQL, with experience handling and analysing financial datasets Strong communication skills with the ability to explain quantitative concepts to both technical and non-technical stakeholders Preferred Qualifications Experience in ESG, Climate, or Sustainability Familiarity with: ESG data / climate metrics Benchmarking and tracking error concepts Rules-based index construction methodologies LI-RH1 ASSOCIATE Finance STOXX What You Can Expect from Us At ISS STOXX, our people are our driving force. We are committed to building a culture that values diverse skills, perspectives, and experiences. We hire the best talent in our industry and empower them with the resources, support, and opportunities to grow—professionally and personally. Together, we foster an environment that fuels creativity, drives innovation, and shapes our future success. Let’s empower, collaborate, and inspire. Let’s be BrilliantTogether. About ISS STOXX ISS STOXX GmbH is a leading provider of research and technology solutions for the financial market. Established in 1985, we offer top-notch benchmark and custom indices globally, helping clients identify investment opportunities and manage portfolio risks. Our services cover corporate governance, sustainability, cyber risk, and fund intelligence. Majority-owned by Deutsche Börse Group, ISS STOXX has over 3,400 professionals in 33 locations worldwide, serving around 6,400 clients, including institutional investors and companies focused on ESG, cyber, and governance risk. Clients trust our expertise to make informed decisions for their stakeholders' benefit. STOXX® and DAX® indices comprise a global and comprehensive family of more than 17,000 strictly rules -based and transparent indices. Best known for the leading European equity indices EURO STOXX 50®, STOXX® Europe 600 and DAX®, the portfolio of index solutions consists of total market, benchmark, blue-chip, sustainability, thematic and factor-based indices covering a complete set of world, regional and country markets. STOXX and DAX indices are licensed to more than 550 companies around the world for benchmarking purposes and as underlyings for ETFs, futures and options, structured products, and passively managed investment funds. STOXX Ltd., part of the ISS STOXX group of companies, is the administrator of the STOXX and DAX indices under the European Benchmark Regulation. Visit our website: https://www.issgovernance.com View additional open roles: https://www.issgovernance.com/join-the-iss-team/ Institutional Shareholder Services (“ISS”) is committed to fostering, cultivating, and preserving a culture of diversity and inclusion. It is our policy to prohibit discrimination or harassment against any applicant or employee on the basis of race, color, ethnicity, creed, religion, sex, age, height, weight, citizenship status, national origin, social origin, sexual orientation, gender identity or gender expression, pregnancy status, marital status, familial status, mental or physical disability, veteran status, military service or status, genetic information, or any other characteristic protected by law (referred to as “protected status”). All activities including, but not limited to, recruiting and hiring, recruitment advertising, promotions, performance appraisals, training, job assignments, compensation, demotions, transfers, terminations (including layoffs), benefits, and other terms, conditions, and privileges of employment, are and will be administered on a non-discriminatory basis, consistent with all applicable federal, state, and local requirements.