# Software Engineering Intern (Summer 2027) [Scale AI](https://www.jorb.ai/firms/scale-ai.md) · London · United Kingdom · [Full-Stack](https://www.jorb.ai/jobs/full-stack.md) Scale AI is hiring a Software Engineering Intern (Summer 2027) in London. Posted 2026-09-14; applications close 2026-11-13. **Apply**: https://job-boards.greenhouse.io/scaleai/jobs/4730846005 Posted 4d ago. ## Role details At Scale’s mission is to develop reliable AI systems for the world’s most important decisions. For 10 years, Scale has provided high-quality data and full-stack technologies that power the world’s leading models, helping enterprises and governments build, deploy, and oversee AI applications that deliver real impact. Scale works closely with industry leaders including Meta, Ernst & Young, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies such as the Army and Air Force. Scale’s internship is not a side project. Interns own real, shipped work on the same roadmaps as full-time engineers, with mentorship from world-class talent and a culture that values ownership, speed, and truth-seeking. Many interns return as full-time Scaliens. ## Global Public Sector Team Scale’s rapidly growing Global Public Sector team uses AI to address critical challenges facing the public sector around the world. Our core work includes: - Creating custom AI applications that impact millions of citizens - Generating high-quality training data for national LLMs - Upskilling and advisory services to spread the impact of AI ## Example Projects - 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 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, alongside ML algorithms, for 100k+ contributors completing billions of complex tasks - Develop new AI infrastructure products to visualize, query, and explore Scale data ## Requirements - Graduation date in Fall 2027 or Spring 2028 with a Bachelor’s degree (or equivalent) in a relevant field: Computer Science, EECS, Computer Engineering, or Statistics - Available for a Summer 2027 internship (May/June start dates) in San Francisco - Product engineering experience such as building full-stack web apps, integrating with APIs and services, talking to customers, determining what to build, and iterating - Previous Computer Science/Software Engineering internship experience - Track record of shipping high-quality products and features - Experience building systems that process large volumes of data - Experience with Python, TypeScript, React, and/or MongoDB ## Nice to Have - Hands-on experience with LLMs, evaluations, or agentic systems through coursework, research, or personal projects - Open source contributions or a portfolio of shipped side projects ## How We Work Our credos guide how we make decisions and work as a team: - **Earn Customer Love** — trust is earned with every interaction, every delivery, and every problem we solve - **Team Flow** — ideas, energy, and support move freely across teams; optimize for the whole - **Quality is Our Cheat Code** — systems that deliver quality consistently are a structural advantage - **Find the 20%** — find the inputs that drive the outcomes and execute them completely - **Write the Market** — our research puts us at the frontier, and we bring our partners there first - **Three Moves Ahead** — consider the consequences of consequences and plan accordingly ## About Us At Scale, we develop reliable AI systems for the world’s most important decisions. Our products provide the high-quality data and full-stack technologies that power the world’s leading models, helping enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We are expanding our team to accelerate the development of AI applications. We believe everyone should be able to bring their whole selves to work, and we are an inclusive, equal-opportunity employer. ## Applying to this role This Software Engineering Intern (Summer 2027) role at Scale AI runs through the firm's own careers portal and expects a CV and cover letter written specifically for the posting, not a portable submission carried across firms. Jorb AI's application agent tailors a CV and cover letter from your background to this posting and tracks the role alongside the rest of your applications. [Tailor this application](https://www.jorb.ai/signup?ref=job-atom&firm=scale-ai&job=6aa81b15a66c991aac710421) ## More open roles at Scale AI - [Business Development Representative, Partnerships (Physical AI)](https://www.jorb.ai/jobs/6a727d5ccd0d6b01dd24556a.md) – New York, posted 1mo ago - [Recruiting Coordinator, Contract](https://www.jorb.ai/jobs/6a62e394b9e762f527dfe893.md) – New York, posted 1mo ago - [National Security Hackathon 2026 - General Interest](https://www.jorb.ai/jobs/69f2ab996674792825183272.md) – New York, posted 4mo ago ## Other open Full-Stack roles - [Software Engineer](https://www.jorb.ai/jobs/6a5a56b8f5d6f7056b4749fe.md) at [CFC](https://www.jorb.ai/firms/cfc.md) – London, posted 2mo ago - [Full Stack Software Engineering Intern](https://www.jorb.ai/jobs/6aaabe45dc0355315c5f8cff.md) at [Gecko Robotics](https://www.jorb.ai/firms/gecko-robotics.md) – New York, posted 3d ago - [Software Engineer, Intern](https://www.jorb.ai/jobs/6aa96bfa649a7abd1ad3b237.md) at [Duolingo](https://www.jorb.ai/firms/duolingo.md) – New York, posted 3d ago - [Software Engineering Intern (Summer 2027)](https://www.jorb.ai/jobs/6aa0a1b7ee5165b1cf93ed20.md) at [Viam](https://www.jorb.ai/firms/viam.md) – New York, posted 10d ago - [Software Engineer Intern](https://www.jorb.ai/jobs/6aa03174517305f8adbab427.md) at [ConductorAI](https://www.jorb.ai/firms/conductorai.md) – New York, posted 11d ago --- Updated: 2026-09-19 Canonical: https://www.jorb.ai/jobs/6aa81b15a66c991aac710421