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About the Role
Amex GBT is seeking a Machine Learning Engineer I to join the Product AI Engineering team. This role involves designing, building, and optimizing intelligent systems, owning the full lifecycle from data to deployed models and measurable business impact. It's ideal for those passionate about solving real-world problems at scale, cross-disciplinary collaboration, and making impactful AI systems.
Responsibilities
- Utilize AI techniques, including machine learning, deep learning, generative AI, and statistical modeling, to develop and implement solutions.
- Apply strong coding skills, analytical abilities, and innovative thinking.
- Employ statistical and data science methods to make data-driven decisions.
- Manipulate large data sets for business insights and drive actionable solutions.
- Utilize appropriate methods and approaches to develop practical solutions for the business.
- Structure work, frame issues, and produce analyses/ML models/Compound AI systems.
- Communicate complex data science topics in a clean & simple way to multiple partners and senior leadership.
- Collaborate with a global team across different continents to achieve project goals.
Requirements
- 2+ years of experience.
- Proven knowledge of AI techniques with an excellent grasp of statistical concepts and methods.
- Good understanding of LLMs, guardrails, RAG, agentic AI.
- Strong passion for solving problems and finding patterns and insights within structured and unstructured data.
- Strong knowledge of hands-on practice in Python.
- Familiarity with popular machine learning libraries and frameworks such as scikit-learn, Hugging Face, PyTorch and TensorFlow.
- Experience with MLFlow, AWS SageMaker and Bedrock is preferred.
- Familiar with MLOps concept, SQL and PySpark.
- Experience with feature stores, machine learning models as service, and monitoring dashboards is a plus.
- Some infrastructure knowledge (AWS, Kubernetes) and cost-awareness are a plus.
Skills
- Machine Learning
- Deep Learning
- Generative AI
- Statistical Modeling
- Python
- scikit-learn
- Hugging Face
- PyTorch
- TensorFlow
- MLOps
- SQL
- PySpark
- AWS
- Kubernetes
Location
- London, United Kingdom
Work Type
- Full-time
Experience Level
- Entry Level
- Mid Level
Education Level
- Master's degree or equivalent
Benefits
- Flexible benefits tailored to each country
- Health and welfare insurance plans
- Retirement programs
- Parental leave
- Adoption assistance
- Wellbeing resources
- Travel perks (deals on flights, hotels, cruises, car rentals)
- Access to over 20,000 courses on learning platform
- Leadership courses
- New job openings available to internal candidates first
About the Company
- Amex GBT is a place where colleagues find inspiration in travel as a force for good and – through their work – can make an impact on our industry.
- We’re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued.
Equal Opportunity
- All applicants will receive equal consideration for employment without regard to age, sex, gender (and characteristics related to sex and gender), pregnancy (and related medical conditions), race, color, citizenship, religion, disability, or any other class or characteristic protected by law.
- We are committed to providing reasonable accommodation to qualified individuals with disabilities.