Python Engineer, Index Fixed Income, Associate 

BlackRock
London, Greater LondonPosted 22 April 2026

Tech Stack

Job Description

About this role Job Purpose/Background: The Index Fixed Income (IFI) team has responsibility for managing Blackrock’s Index Fixed Income portfolios, including Exchange Traded Funds (ETFs) , mutual funds , & segregated mandates . The IFI team liaises closely with many areas of Fixed Income and is responsible for ensuring that Fixed Income portfolios are managed efficiently and in a consistent and risk-controlled manner. BlackRock’s IFI business is the leading index investment group in the world. We help investors build better portfolios with the industry’s leading suite of index investment tools. We manage over $1.5 trillion in global index fixed income assets across Developed and Emerging Markets. Our clients include corporate and public pension plans, central banks, sovereign wealth funds and retail investors. The PM Architecture team are designing and developing portfolio construction algorithms to significantly increase automation and productivity across IFI globally .  They are also partnering with Technology teams to develop the core platform with which to deploy algorithms robustly at scale . Algorithms have already been successfully deployed which are event-based and automatically propose order lists that rebalance funds back to target . A key focus is developing algorithms and analytics to support the rapid growth of Fixed Income ETFs. A successful candidate will be familiar with management of a wide range of Fixed Income funds and have strong technology skills, allowing them to develop both prototypes which make immediate improvements to the PM process a nd then refine them into production solutions tha t can operate at scale .  They will also have the communication skills to partner with PM , Trading, and Technology teams to guide the integration of these algorithms into the investment process and leverage core BlackRock technology. Key Responsibilities: Design efficient algorithms and optimizers to automate key portfolio construction processes Develop both prototypes and production tools P artner with PMs to integrate these tools into daily processes and continually refine them On occasion, undertake portfolio management activities to develop a deeper understanding of specific investment processes Partner with BlackRock Technology teams to design and develop the core “Algo Platform” Develop other desk tools to support the PM investment process. Partner with BlackRock Technology teams to ensure existing applications continue to evolve to support PM needs Develop reporting methods & analytics on new tools to ensure improvements can be measured Knowledge/Experience/ Qualifications : Strong technical background (at least BA/BS in Maths /Science/Engineering/ related discipline ) . Strong programming skills in at least two of the following: Python, Visual Basic, R, MATLAB, Java, C Excellent problem-solving skills and process-oriented approach Excellent teamwork and communication skills Nice to have: Experience of working as Portfolio Manager, either directly or alongside Working knowledge of Fixed Income markets Familiarity across a range of funds and investment styles (index/active, fundamental/quantitative) Knowledge of BlackRock Aladdin tools beneficial Our benefits To help you stay energized, engaged and inspired, we offer a wide range of employee benefits including: retirement investment and tools designed to help you in building a sound financial future; access to education reimbursement; comprehensive resources to support your physical health and emotional well-being; family support programs; 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 flexib ... (truncated, view full listing at source)
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