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PySpark Big Data Senior Developer - Vice President

Company: Citigroup

Location: Mississauga, London

Posted: June 05, 2026

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Position Details

We are building an **A-team** of highly skilled and autonomous engineers, and we are seeking an exceptional PySpark Big Data Senior Developer to join our dynamic and focused squads. This role is for a hands-on player/coach who thrives in a high-autonomy environment, is deeply committed to leveraging AI for maximum productivity, and possesses a profound understanding of the functional domains our work impacts. The ideal candidate will be instrumental in designing, developing, and optimizing large-scale data processing solutions using PySpark and cutting-edge big data technologies. We are looking for an **AI-first thinker** who can raise the bar, coach others, and strategically contribute to our evolving technology landscape.

**Responsibilities:**

+ Operate end-to-end in the design, development, and implementation of robust big data solutions, ensuring optimal performance, scalability, data quality, and security.
+ Collaborate closely within small, co-located squ...