Job Description About Global Quantitative Strategies (GQS) GQS is the quantitative investment business of Citadel. Founded in 2012, GQS has rapidly grown to become one of Citadel's core investment strategies and one of the top quantitative investment teams in the world. Agile teams of researchers, engineers, and traders develop robust systems that allow us to operate performant at scale and apply advanced statistical and quantitative modeling techniques to identify and act on investment opportunities. Quantitative Researchers (QRs) specialize in a variety of areas, including but not limited to: using data analysis and machine learning skills to build predictive models, driving construction of a complex multi asset portfolio by utilizing large scale portfolio optimization techniques, and developing sophisticated optimization algorithms. Researchers with an exceptional record of achievement in their respective fields and a drive to apply quantitative techniques to investing are encouraged to apply to GQS. Required Skills and Qualifications: - Currently a postdoctoral researcher in physics, computer science, machine learning, mathematics, statistics, engineering, or a related field - Strong mathematical and statistical modeling skills - Proficiency in coding (C++ or Python) - Interest in conducting innovative and impactful research focused on solving real-world problems - Relentless focus on continuous learning and making an impact; ability to question the status quo - Passion for financial markets and driven to analyze and model drivers of price formation and risk In accordance with applicable law, the base salary range for this role is $200,000 to $300,000. In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs. About Citadel Citadel is one of the world's leading alternative investment managers. We manage capital on behalf of many of the world's preeminent private, public and nonprofit institutions. We seek the highest and best use of investor capital in order to deliver market leading results and contribute to broader economic growth. For over 30 years, Citadel has cultivated a culture of learning and collaboration among some of the most talented and accomplished investment professionals, researchers and engineers in the world. Our colleagues are empowered to test their ideas and develop commercial solutions that accelerate their growth and drive real impact.

Title: Senior Quantitative Researcher - Fixed Income Markets Research, Director Location: New York United States Job Description: About this role Description: BlackRock Global Markets (BGM) brings together BlackRock's global trading, financing and financial resource management, securities lending, ETF markets, cash management, and index investments businesses to deliver investment, trading, financing, and risk management excellence for clients. Markets Research is a team within the Global Markets group that conducts cutting-edge market microstructure research, performs pre- and post-trade analysis, and provides analytics for its stakeholders. In this function, Markets Research cuts across regions and asset classes. It partners with Trading Data, Analytics, Trading Desks, as well as the active and passive investment teams to deliver best execution and superior investment performance. The Markets Research team is seeking to hire a senior Quantitative Researcher. We are a small, close-knit team with a collegiate culture that values openness, creativity, and attention to detail. The role involves working closely with other team members to conduct market microstructure research projects, contribute to the team's research agenda, enhance the quality of its analytics, and work on smart algo logics or automated execution models. The successful candidate will possess strong data science and research skills, deep knowledge of market microstructure, and a willingness to apply their skills in financial markets and a trading context. The role offers excellent opportunities to build knowledge of trading market structure across asset classes and collaborate with researchers, traders, and portfolio managers from fundamental, model-based, and passive investment teams. Responsibilities: - Perform data analysis, design and execute research projects, and build research models using various types of financial data. - Apply both traditional econometric tools and machine learning techniques to solve real-world problems in trading. - Acquire domain expertise in market microstructure and execution research for selected asset classes. - Recalibrate, maintain, and improve the current suite of models and automated trading processes. - Deliver top-quality execution strategy optimization, venue and algo optimal selection, intraday liquidity modeling, and research-based trading workflow automation. - Become a thought leader in market microstructure developments to adapt our analytics framework and trading models. - Mentor junior researchers, manage research project delivery, and communicate to senior stakeholders. Qualifications: - Advanced degree in a subject with quantitative content (PhD preferable). - Related experience in trading research/execution, consulting/quantitative trading for financial service firms (7+ years), exceptional hands-on research ability and at least 2 years of hands-on trading experience preferred in addition to research experience. - Expertise in market microstructure in fixed income areas (preferably FX, credit, or rates) and expertise in market microstructure literature. - Ability to deliver effective research models in production in an efficient manner. - Excellent communication skills, professional and respectful work ethic, and ability to collaborate and communicate with senior stakeholders and external vendors. - Effective team player who works independently and confidently engages with trading and investment teams. For New York, NY Only the salary range for this position is USD$215,000.00 - USD$275,000.00 . Additionally, employees are eligible for an annual discretionary bonus, and benefits including healthcare, leave benefits, and retirement benefits. BlackRock operates a pay-for-performance compensation philosophy and your total compensation may vary based on role, location, and firm, department and individual performance. Our benefits To help you stay energized, engaged and inspired, we offer a wide range of benefits including a strong retirement plan, tuition reimbursement, comprehensive healthcare, support for working parents and Flexible Time Off (FTO) so you can relax, recharge and be there for the people you care about. Our hybrid work model BlackRock's hybrid work model is designed to enable a culture of collaboration and apprenticeship that enriches the experience of our employees, while supporting flexibility for all. Employees are currently required to work at least 4 days in the office per week, with the flexibility to work from home 1 day a week. Some business groups may require more time in the office due to their roles and responsibilities. We remain focused on increasing the impactful moments that arise when we work together in person - aligned with our commitment to performance and innovation. As a new joiner, you can count on this hybrid model to accelerate your learning and onboarding experience here at BlackRock. About BlackRock At BlackRock, we are all connected by one mission: to help more and more people experience financial well-being. Our clients, and the people they serve, are saving for retirement, paying for their children's educations, buying homes and starting businesses. Their investments also help to strengthen the global economy: support businesses small and large; finance infrastructure projects that connect and power cities; and facilitate innovations that drive progress. This mission would not be possible without our smartest investment - the one we make in our employees. It's why we're dedicated to creating an environment where our colleagues feel welcomed, valued and supported with networks, benefits and development opportunities to help them thrive. For additional information on BlackRock, please visit @blackrock | Twitter: @blackrock | LinkedIn: www.linkedin.com/company/blackrock BlackRock is proud to be an equal opportunity workplace. We are committed to equal employment opportunity to all applicants and existing employees, and we evaluate qualified applicants without regard to race, creed, color, national origin, sex (including pregnancy and gender identity/expression), sexual orientation, age, ancestry, physical or mental disability, marital status, political affiliation, religion, citizenship status, genetic information, veteran status, or any other basis protected under applicable federal, state, or local law. View the EEOC's Know Your Rights poster and its supplement and the pay transparency statement. BlackRock is committed to full inclusion of all qualified individuals and to providing reasonable accommodations or job modifications for individuals with disabilities. If reasonable accommodation/adjustments are needed throughout the employment process, please email Disability.Assistance@blackrock.com. All requests are treated in line with our privacy policy. BlackRock will consider for employment qualified applicants with arrest or conviction records in a manner consistent with the requirements of the law, including any applicable fair chance law.

• Impact-focused approach to planning, conducting and communicating research studies focused on understanding user behavior, needs, use cases and workflows, and identifying opportunities for impact. • Supporting the product team by conducting research on user goals, needs and mental models, and usability testing solution ideas and prototypes, including early-stage AI-driven experiences. • Supporting the evaluation of conceptual ideas and prototypes as part of our broader AI-driven product evolution. • Improving our processes and channels of research participant recruiting collaborating closely with Customer Success, Product Marketing, and Lifecycle Marketing. • Develop a deep understanding of the users and the products – and curate that knowledge – updating and being current with all changes and understanding the use cases drive the functionality they support. • Develop a clear understanding of the competitive landscape – informing research direction, opportunities for disruption and innovation. • Deliver key insights through readouts, workshops, and presentations.

Role Description As a member of the user experience team, you’ll drive the understanding of user behavior, motivations, and experiences with Reddit. You'll partner with our product and design teams to understand users and how we can improve their experiences. As a usability rapid researcher, you’ll be responsible for leading usability-focused research studies across consumer teams that drive changes in product design and strategy. You’ll investigate user behavior and user needs using qualitative research methods including interviews, concept testing, and usability testing. The ideal candidate will be able to combine their skills in research design and qualitative interviewing and analysis to improve the user experience. Responsibilities: - Design and execute on unmoderated, moderated usability testing, and user interviews through a rapid research program. - Lead communication and collaboration with cross-functional partners, including design, product management, engineers, and product marketing. - Appropriately scope and prioritize usability projects with cross-functional teams. - Work quickly to turn around high-quality research insights. - Develop research deliverables that achieve business and product impact. - Assist other researchers with projects as needed. Qualifications - 3+ years of professional experience conducting user research. - BA/BS in Psychology, Sociology, Statistics, Behavioral Science, Computer Science, Human-Computer Interaction, related fields, or equivalent experience within a product-centric environment. Requirements - Previous experience conducting remote research. - Be flexible, adapting to changing schedules and different projects. - Demonstrate agility in adapting to shifting priorities. - Understanding of strengths and shortcomings of different quantitative research methods. - Detail-oriented and ability to work fairly independently on a variety of tasks. - Strong interpersonal, organizational, written, and oral communication skills. - Experience working in ambiguity and complex cross-functional collaborations. Company Description Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please contact us at ApplicationAssistance@Reddit.com. In select roles and locations, the interviews will be recorded, transcribed, and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription, and summarization prior to any scheduled interviews. During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.