Synced from Greenhouse · Sep 14

Software Engineer

Scale AILondon, UKPosted Sep 14, 2026
Software EngineerJunior
Apply nowSave & get alerts

Mirrored from Scale AI's own Greenhouse careers system · refreshed hourly

202
Other open Scale AI roles
Sep 14
Posted
Greenhouse
Applicant system
Job descriptionReq 4730862005

At Scale, our mission is to develop reliable AI systems for the world's most important decisions. For 10 years, Scale has provided the high-quality data and full-stack technologies that power the world's leading models, and has helped enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Ernst & Young, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force.

Every industry is moving AI to the center of operations, but there is still no clear blueprint for getting from pilot to profit. That is the problem our engineers work on. As a New Grad Software Engineer, you will own meaningful, customer-facing work from day one — shipping products, talking directly to the customers who use them, and iterating fast.

Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of:

  • Creating custom AI applications that will 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 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
  • Build a customer service RAG application that handles thousands of questions a day
  • Integrate a cutting-edge ML model that predicts churn into a customer's retention system

Requirements:

  • A graduation date in Fall 2026 or Spring 2027 with a Bachelor's degree (or equivalent) in a relevant field (Computer Science, EECS, Computer Engineering, Statistics)
  • Product engineering experience such as building web apps full-stack, integrating with relevant APIs and services, talking to customers, figuring out 'what' to build and then iterating
  • Previous Product/Software Engineering internship experience
  • Track record of shipping high-quality products and features at scale
  • Experience building systems that process large volumes of data
  • Experience with Python, Typescript, React, and/or MongoDB

Please reference the job posting's subtitle for where this position will be located.

Nice to have:

  • Hands-on experience with LLMs, evaluations, or agentic systems — whether from internships, research, or personal projects
  • Open source contributions or a portfolio of shipped side projects

How we work:

Our credos shape 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 — the 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

PLEASE NOTE: Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.

About Us:

At Scale, our mission is to 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, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Ernst & Young, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications.

We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status. 

We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at accommodations@scale.com. Please see the United States Department of Labor's Know Your Rights poster for additional information.

We comply with the United States Department of Labor's Pay Transparency provision. 

PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants’ needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.

View original posting on Greenhouse

What applying to Scale AI usually looks like

Based on publicly available information, candidates applying through greenhouse for roles at Scale AI can typically expect an online application followed by an initial resume review conducted by a recruiter or automated screening tool. Applicants may then be invited to a recruiter phone screen, which commonly precedes further evaluation stages such as technical assessments, case studies, or panel interviews depending on the role type. Greenhouse-based processes often include structured interview kits and standardized scorecards, so candidates may notice consistent question themes across stages. Communication is generally handled through automated email updates, and response times vary based on team hiring needs and volume of applicants. Candidates should be prepared for multiple stages that could include hiring manager conversations, skills-based exercises, and reference checks before receiving a final decision.

Based on publicly available information. LandEarly does not verify interview process details.

Land this one early - before the req fills.

LandEarly tailors your resume and screening answers to each posting, submits within minutes of a role going live, and tracks every application in one place.

Set up in minutes · Cancel anytime · No contract

Keep exploring

What this role pays, where else it is open, and how to write the application.

Software Engineer
Scale AI · London, UK
Apply