Lead AI/ML Feature Engineer

Mastercard; London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading financial technology company in London is seeking a Lead AI/ML Feature Engineer to design and develop machine learning features that drive core business value. You will build sophisticated data pipelines and provide mentorship to junior engineers. The ideal candidate has a Bachelor’s degree and at least 8 years of experience in AI/ML feature engineering, along with strong skills in Python, SQL, and cloud technologies. The position offers a dynamic environment focused on innovation.

Qualifications

• Minimum of 8+ years of experience in AI/ML feature engineering or data engineering.
• Strong focus on building and deploying AI/ML feature pipelines.
• Exceptional analytical and problem-solving skills.

Responsibilities

• Design, develop, and implement advanced features for machine learning models.
• Build and optimize efficient and reliable data pipelines.
• Provide technical guidance and mentorship to junior engineers.
• Support deployment and maintenance of AI/ML features in production.

Skills

Python

Scala

Java

Data manipulation libraries (Pandas, NumPy, Spark)

SQL

NoSQL databases

Cloud platforms

MLOps practices and tools (Docker, Kubernetes, CI/CD)

Education

Bachelor's degree in Computer Science, Engineering, Data Science, or related field

Job description

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build asustainableeconomy where everyone can prosper. We support a wide range of digital payments choices, making transactionssecure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Lead AI/ML Feature Engineer Position Overview

As a Lead AI/ML Feature Engineer, you will be at the forefront of designing, developing, and deploying cutting-edge machine learning features that drive core business value for Mastercard. You will leverage your deep technical expertise to build sophisticated data pipelines and engineer impactful features, directly influencing our products and strategies

Key Responsibilities

Design, develop, and implement advanced features from raw data for various machine learning models, ensuring their relevance, robustness, and scalability

Build and optimize efficient and reliable data pipelines to support the ingestion, transformation, and delivery of data for AI/ML applications

Provide technical guidance and mentorship to other junior engineers

Work closely with AI engineers, product managers, and other engineering teams to understand requirements, translate business problems into technical solutions, and integrate AI/ML features into production systems

Support the deployment, monitoring, and maintenance of AI/ML features in production environments

Implement robust testing and validation processes to ensure the quality, accuracy, and reliability of engineered features and AI/ML data pipelines

Qualifications

Education: Bachelor's degree in Computer Science, Engineering, Data Science, or a related quantitative field

Experience: Minimum of 8+ years of experience in AI/ML feature engineering, data engineering, or a related field, with a strong focus on building and deploying AI/ML feature pipelines in production

Technical Skills:

Proficiency in programming languages such as Python, Scala, or Java

Extensive experience with data manipulation and analysis libraries (e.g., Pandas, NumPy, Spark).

Hands-on experience with any of the cloud platforms

Strong background in SQL and NoSQL databases

Experience with big data technologies

Familiarity with MLOps practices and tools (e.g., Docker, Kubernetes, CI/CD for ML)

Exceptional analytical and problem-solving skills, with the ability to translate complex business challenges into technical solutions

Excellent communication and presentation skills, with the ability to articulate complex technical concepts to both technical and non-technical stakeholders

Proven ability to work effectively in cross-functional teams and drive projects to successful completion

A strong passion for innovation and a track record of exploring and adopting new technologies and methodologies in the AI/ML space

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.