Senior Data Engineer, Anti-Fraud Technology

Vanguard
London
6 days ago
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Overview

Vanguard manages more than $11 trillion in assets worldwide, and with that scale comes a deep responsibility: safeguarding our clients from fraud and financial crime. Our Enterprise Security & Fraud (ES&F) team sits at the heart of this mission. We build advanced, cloud-native technology that detects, prevents, and responds to emerging threats across the UK and Europe.


Responsibilities

  • Design and implement real‑time data pipelines that power fraud detection and operational decision making.
  • Build robust ELT workflows from source ingestion through to data presentation for internal stakeholders.
  • Develop event‑driven solutions using technologies such as Apache Kafka and Apache Flink.
  • Build and maintain cloud infrastructure using AWS and Infrastructure‑as‑Code tooling (CloudFormation/Terraform).
  • Own deployment and operational support across development, test, and production environments.
  • Champion continuous improvement across tooling, processes, and engineering practices.
  • Partner closely with developers, product owners, scrum masters, and analysts to ensure data enables an exceptional client experience.
  • Participate fully in agile ceremonies including sprint planning, daily scrums, reviews, and retrospectives.

Qualifications

  • 5+ years of experience as a data engineer.
  • Strong proficiency in Python or Java, SQL, and cloud environments (preferably AWS).
  • Hands‑on experience with Kafka and streaming frameworks such as Flink.
  • Proficiency with data transformation tools (PySpark, Pandas).
  • Familiarity with data quality frameworks (e.g., Great Expectations).
  • Experience with graph databases is a plus.
  • Exposure to building cloud infrastructure via IaC.
  • Excellent communication skills, able to translate complex topics for technical and non‑technical audiences.
  • Understanding of agile development; scrum experience preferred.
  • A continuous learning mindset and willingness to expand both technical and non‑technical skills.
  • A degree in a STEM field is beneficial but not required.

About the Team

ES&F is where security engineering, fraud prevention, and advanced data technology converge. You'll join a mission‑driven group that blends deep technical expertise with real‑world impact.



  • Purposeful work: every pipeline, every event stream, and every decisioning workflow contributes directly to protecting investors from financial harm.
  • Serious scale: work with high‑volume behavioural, transactional, and event‑driven datasets across multiple markets.
  • Cutting‑edge tooling: We invest in cloud‑native, real‑time, and streaming architectures – this is not legacy data warehousing.
  • Strong engineering culture: thoughtful design, quality code, operational excellence, and continuous improvement are non‑negotiable.
  • Collaborative environment: partner daily with security specialists, fraud analysts, architects, and data scientists.

Work Environment

Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in‑person learning, collaboration, and connection. We believe our mission‑driven and highly collaborative culture is a critical enabler to support long‑term client outcomes and enrich the employee experience.


Our hybrid model blends collaboration with flexibility: in office Tuesday‑Thursday, remote on Monday and Friday.


Benefits

We offer a competitive base salary, annual performance bonus (January), partnership bonus (June), and comprehensive benefits.


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