Campus - Internship Programme - Undergraduate AI Engineer - 2027 (UK - London)

American Express; Greater London; On-site; GBP 56,000 - 73,000; Full time

Benefits offered by this job

Hybrid/Virtual work options

Wellness centers

Healthy Minds counseling

Career development

Job summary

American Express in London invites ambitious AI Engineer Interns to join Enterprise Technology Services for a 10‑week Summer Internship. You’ll build software, collaborate with Agile teams, and learn how enterprise AI projects are designed, developed, tested, and delivered in a global environment.

In this role you may work across ML, generative AI, data pipelines, and AI-enabled features, partnering with engineers, product partners, data practitioners, and security teams to learn responsible and

Qualifications

• Currently enrolled in a Master’s degree program in Computer Science, Machine Learning, Data Science, Computer Engineering, or another technical field.
• Expected graduation date in 2028.
• Strong knowledge of Python and data processing technologies.
• Experience with modern AI systems such as LLM APIs and prompt-based interactions.

Responsibilities

• Support AI/ML model integration and LLM services into production-like systems under guidance.
• Assist data collection, preprocessing, transformation, and management for model training and evaluation.
• Collaborate with engineers and product partners to implement AI-enabled solutions aligned to business needs.
• Participate in Agile practices including sprint planning, stand-ups, and code reviews.
• Document model parameters, data pipelines, and technical decisions to support reproducibility.

Skills

Python

LLM APIs

Prompt engineering

Data processing

AI concepts

Education

Master’s degree in Computer Science, Machine Learning, Data Science, Computer Engineering, or another technical field

Job description

Job Description

You Lead the Way. We’ve Got Your Back.

With the right backing, people and businesses have the power to progress in incredible ways. When you join Team Amex, you become part of a global and diverse community of colleagues with an unwavering commitment to backing our customers, communities, and each other. Here, you’ll learn and grow as we help you create a career journey that’s unique and meaningful to you, with benefits, programs, and flexibility that support you personally and professionally.

At American Express, you’ll be recognized for your contributions, leadership, and impact—every colleague has the opportunity to share in the company’s success. Together, we’ll win as a team, striving to uphold our company values and powerful backing promise to provide the world’s best customer experience every day. And we’ll do it with the utmost integrity, in an environment where everyone is seen, heard, and feels like they belong.

Join Team Amex and let’s lead the way together.

Amex Manifest

Business Unit / Role Specific Info

At American Express, we empower future technologists to learn, innovate, and make an impact from day one.

As an AI Engineer Intern in Enterprise Technology Services, you’ll join a 10-week Summer Internship Program and contribute to real‑world technology projects that help teams explore, build, test, and responsibly scale AI‑enabled solutions. You’ll build software, collaborate with Agile teams, and learn how products are designed, developed, tested, and delivered in a global enterprise environment.

In this role, you may support work across machine learning, generative AI, intelligent automation, data pipelines, retrieval patterns, model evaluation, AI agents, agentic workflows, or AI‑enabled software features. You’ll work with engineers, product partners, data practitioners, security partners, and business stakeholders to learn how enterprise AI solutions are designed and delivered responsibly, reliably, and securely.

About The Team

Enterprise Technology Services teams build and operate technology that helps American Express deliver trusted, secure, and customer‑first products and services. Interns may be aligned to scrum teams across backend engineering, frontend engineering, cloud engineering, mobile, AI / machine learning, data‑oriented engineering, or full‑stack product development.

What type of work can you expect? How will you make an impact in this role?

• Support the development and integration of AI / ML models, LLM integrations, or intelligent services into controlled or production‑like systems under guidance.
• Assist with data collection, preprocssing, transformation, and management to enable model training, testing, validation, and evaluation.
• Contribute to testing, debugging, and improving AI‑enabled solutions to strengthen performance, reliability, explainability, and maintainability.
• Support AI capabilities such as basic model training workflows, inference endpoints, prompt‑based interactions, evaluation routines, data retrieval pipelines, AI agents, or agentic workflows.
• Collaborate with engineering, product, data, risk, security, and business partners to implement AI‑driven solutions aligned to business requirements.
• Document model parameters, prompts, evaluation assumptions, data pipelines, system integrations, and technical decisions to support reproducibility.
• Participate in Agile development practices, including sprint planning, stand‑ups, demos, retrospectives, code reviews, and team ceremonies.
• Assist in ensuring AI systems and AI‑enabled features align with enterprise expectations for reliability, safety, governance, security, and compliance.
• Build foundational confidence working across AI‑adjacent technology areas such as APIs, cloud environments, data platforms, CI/CD, containers, model deployment patterns, and monitoring.

What You’ll Learn

• How AI‑enabled software is designed, built, tested, and delivered in an enterprise technology environment.
• How machine learning, generative AI, LLM APIs, prompt‑based workflows, retrieval patterns, AI agents, agentic workflows, and model evaluation can be applied to business problems.
• How Product, Engineering, Data, Security, Risk, and business partners collaborate from idea to implementation.
• How to balance AI innovation with quality, resilience, usability, privacy, security, compliance, and responsible AI expectations.
• How to communicate technical progress, ask effective questions, document your work, and share outcomes with both technical and non‑technical audiences.
• How to grow your career through mentorship, feedback, peer learning, technical curriculum, and Early Careers programming.
• Foundational knowledge of computer science concepts such as data structures, algorithms, object‑oriented programming, debugging, testing, and problem‑solving.
• Foundational knowledge of machine learning concepts such as supervised learning, unsupervised learning, feature engineering, model evaluation, and basic experimentation.

Qualifications

Currently enrolled in a Master’s degree program in Computer Science, Machine Learning, Data Science, Computer Engineering, or another technical field.

• Candidates with an expected graduation date in 2028

Minimum Qualifications

• Knowledge of Python and foundational data processing technologies.
• Foundational understanding of computer science concepts, including data structures, algorithms, debugging, testing, and problem solving.
• Understanding of machine learning concepts such as model training, evaluation, feature engineering, and experimentation.
• Experience using modern AI systems such as LLM APIs, prompt‑based interactions, retrieval patterns, or generative AI applications.
• Awareness of responsible AI, security, governance, compliance, and reliability considerations.
• Strong communication, collaboration, documentation, and learning agility with the ability to work effectively in a team environment.

Preferred Qualifications

• Demonstrated experience through academic coursework, research, projects, open‑source contributions, internships, or extracurricular activities using Python, R, Java, JavaScript, or similar technologies.
• Interest in machine learning, generative AI, natural language processing, intelligent automation, data engineering, agentic AI, or AI‑enabled software development.
• Experience building AI‑powered applications, copilots, intelligent assistants, agentic workflows, research prototypes, or hackathon solutions using AI/ML technologies.
• Familiarity with NLP techniques and model concepts such as fuzzy matching, embeddings, BERT, transformers, or other modern language models.
• Exposure and experience with prompt engineering, prompt evaluation, tools, function calling, or agent workflow concepts.
• Experience or coursework involving ML algorithms and applying them to practical or real‑world problems.
• Familiarity with APIs, data pipelines, ETL processes, cloud environments, or containerized development.
• Awareness of CI/CD, version control, testing, code reviews, and collaborative software engineering workflows.
• Curiosity for AI‑powered developer tools, responsible AI practices, governance, security, and enterprise‑scale delivery.

AI Engineer Areas And Skills

• AI / Machine Learning Engineering : Python, R, Java, machine learning fundamentals, model training, model evaluation, feature engineering, NLP, embeddings, transformer models, LLM APIs, prompt engineering, retrieval patterns, AI agents, model documentation, responsible AI concepts.
• Data Engineering for AI: Data collection, preprocessing, data quality, ETL, data pipelines, SQL, big data concepts, data validation, feature pipelines, and reproducible data workflows.
• AI-Enabled Software Engineering: APIs, microservices, inference endpoints, application integration, cloud-native development, agile delivery, testing, CI/CD, containerization, observability, and production‑like deployment practices.
• Generative AI / LLM Applications: Prompt-based interactions, LLM integrations, retrieval‑augmented generation concepts, evaluation of AI outputs, grounding patterns, guardrails, AI agents, agent orchestration, and human‑in‑the‑loop review.
• Enterprise AI Readiness: Security, compliance, model governance, documentation, risk awareness, system reliability, issue escalation, and responsible AI practices.
• Cybersecurity & AI Security : Secure software development practices, application security fundamentals, identity and access management, data protection, encryption concepts, secure API design, vulnerability awareness, threat modeling fundamentals, secure use of AI/LLM technologies, AI security risks (prompt injection, data leakage, model abuse), governance controls, compliance awareness, and responsible handling of sensitive information.

About Us

At American Express, our culture is built on a 175-year history of innovation, shared values and Leadership Behaviors, and an unwavering commitment to back our customers, communities, and colleagues. From delivering differentiated products to providing world‑class customer service, we operate with a strong risk mindset, ensuring we continue to uphold our brand promise of trust, security, and service.

As part of Team Amex, you’ll experience our powerful backing with comprehensive support for your holistic well‑being and many opportunities to learn new skills, develop as a leader, and grow your career. Here, your voice and ideas matter, your work makes an impact, and together, you will help us define the future of American Express.

About The Team

• Competitive base salaries
• Flexible work arrangements and schedules with hybrid and virtual options with Amex Flex
• Free access to global on‑site wellness centers staffed with nurses and doctors (depending on location)
• Free and confidential counselling support through our Healthy Minds program
• Career development and training opportunities

Offer of employment with American Express is conditioned upon the successful completion of a background verification check, subject to applicable laws and regulations.