London: Hands-on AI Systems Intern (Summer 2027)

Scale AI; Greater London; On-site; GBP 25,000 - 38,000; Full time

Job summary

Scale AI in London is offering a Software Engineering Intern (Summer 2027) to work on real shipping projects within the Global Public Sector team. You will build web apps, integrate APIs, and iterate with mentors, owning meaningful features from day one.

The role rewards ownership, speed, and truth-seeking, with interns transitioning to full-time Scaliens. Ideal candidates graduate Fall 2027 or Spring 2028, have CS/EECS/CE/Statistics degrees, internship experience, and skills in Python,

Qualifications

• Graduation date Fall 2027 or Spring 2028 with a Bachelor's degree in a relevant field (Computer Science, EECS, Computer Engineering, Statistics)
• Available for a Summer 2027 internship (May/June start dates) in London, UK
• Experience building web apps full-stack and shipping high-quality products
• Previous CS/Software Engineering internship experience

Responsibilities

• Build reinforcement learning and post-training data pipelines that power frontier model development
• Develop evaluation infrastructure that measures model reliability for enterprise and public sector customers
• Ship agentic AI applications and the tooling that makes them observable, testable, and safe to deploy
• Ship tools that accelerate the growth of new qualified contributors on Scale's platform
• Build fraud-detection systems that remove bad actors and keep Scale's contributor base safe and trusted
• Use models to estimate the quality of tasks and contributors, and guarantee quality on requests at large scale
• Devise advanced matching algorithms that pair contributors to customers for optimal turnaround and accuracy
• Create optimized and efficient UI/UX tooling, in combination with ML algorithms, for 100k+ contributors completing billions of complex tasks
• Develop new AI infrastructure products to visualize, query, and explore Scale data

Skills

Full-stack web apps

APIs integration

Customer interaction

Python

Typescript

React

MongoDB

Shipping features

Education

Bachelor's degree in CS/EECS/Computer Engineering/Statistics

Job description

Scale AI in London is offering a Software Engineering Intern (Summer 2027) to work on real shipping projects within the Global Public Sector team. You will build web apps, integrate APIs, and iterate with mentors, owning meaningful features from day one.

The role rewards ownership, speed, and truth-seeking, with interns transitioning to full-time Scaliens. Ideal candidates graduate Fall 2027 or Spring 2028, have CS/EECS/CE/Statistics degrees, internship experience, and skills in Python,