Scale AI Logo

Scale AI

Senior Software Engineer, Identity

Reposted 7 Days Ago
Be an Early Applicant
In-Office
London, Greater London, England, GBR
Senior level
In-Office
London, Greater London, England, GBR
Senior level
Design and implement identity infrastructure for authentication and authorization across enterprise systems. Build SSO, MFA, federated identity, and authorization systems (ReBAC/ABAC/RBAC). Implement governance policies for compliance (NIST, SOC2, ISO27001), and advise stakeholders on identity management best practices.
The summary above was generated by AI

Software is eating the world, but AI is eating software. We live in unprecedented times – AI has the potential to exponentially augment human intelligence. Every person will have a personal tutor, coach, assistant, personal shopper, travel guide, and therapist throughout life. As the world adjusts to this new reality, leading platform companies are scrambling to build LLMs at billion scale, while large enterprises figure out how to add it to their products. To make them safe, aligned and actually useful, these models need human eval and reinforcement learning through human feedback (RLHF) during pre-training, fine-tuning, and production evaluations. This is the main innovation that’s enabled ChatGPT to get such a large headstart among competition.

At Scale, our products include the Generative AI Data Engine, SGP, Donovan, and others that power the most advanced LLMs and generative models in the world through world-class RLHF, human data generation, model evaluation, safety, and alignment. The data we are producing is some of the most important work for how humanity will interact with AI.

At the foundation of these products is the Identity  Engineering team.  In this role, you will help support the design and development of core software systems specifically focused on identity, access management, authorization, and authentication.  You’ll also get widespread exposure to the forefront of the AI race as Scale sees it in enterprises, startups, governments, and large tech companies.

You will:

  • Drive the design, and implementation of our identity infrastructure to ensure secure authentication and authorization across enterprise systems.
  • Build software for authentication mechanisms such as Single Sign-On (SSO), Multi-Factor Authentication (MFA), and federated identity solutions (SAML, OAuth, OpenID Connect).
  • Build software for authorization mechanisms such as Relation-based access control (ReBAC), Attribute-based access control (ABAC), Role-based access control (RBAC).
  • Build software-defined identity governance policies to ensure compliance with security policies, industry regulations (e.g., NIST, SOC2, ISO 27001), and organizational standards.
  • Present technical information to teams and stakeholders, providing guidance and insight on identity management and best practices.

Ideally you’d have:

  • 5+ years of full-time engineering experience, post-graduation with specialities in infrastructure and identity systems.
  • Infrastructure expertise – IAM controls, Infrastructure as Code (Terraform, Pulumi), microservice deployment best practices.
  • Hands-on experience working with OpenFGA, Authzed, Cedar, Topaz, or similar authorization frameworks at scale.
  • Strong understanding of Zanzibar-based ReBAC models, relationship tuples, and access control evaluation.
  • Strong knowledge of authentication standards such as OAuth 2.0, OIDC, SAML, and JWT, as well as industry standard IdP solutions like EntraID, Okta, etc.
  • Extensive experience in software development and a deep understanding of distributed systems and public cloud platforms (AWS preferred).
  • Show a track record of independent ownership of successful engineering projects.
  • Possess excellent communication and collaboration skills, and the ability to translate complex technical concepts to non-technical stakeholders.

Nice to haves:

  • Experience securing API access and implementing access control mechanisms at the application level.
  • Multi-cloud infrastructure experience – AWS, Azure, GCP, and more.
  • Proficiency in integrating IAM solutions with applications built using frameworks such as Java, Python, Node.js, or .NET.
  • Mentorship/leadership experience supporting junior engineers

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 [email protected]. 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.

Similar Jobs

22 Days Ago
In-Office
London, Greater London, England, GBR
Senior level
Senior level
Fintech • Payments • Software
Design, build, test, deploy and maintain scalable identity solutions for a global fintech platform. Participate across the SDLC, lead architectural discussions, enforce engineering best practices, code reviews, automated testing and CI/CD, and collaborate with cross-functional teams to deliver secure identity and access features.
Top Skills: Ci/CdGoJavaPython
An Hour Ago
Easy Apply
Hybrid
London, Greater London, England, GBR
Easy Apply
Senior level
Senior level
Artificial Intelligence • Big Data • Cloud • Security • Software • Cybersecurity • Infrastructure as a Service (IaaS)
Design, operate, secure, and optimize cloud infrastructure across AWS and Azure. Implement IAM, IaC, automation, monitoring, cost controls, and compliance practices. Partner with Security, Engineering, and IT Operations on migrations, incident response, and operational improvements while mentoring junior engineers.
Top Skills: AWSAzureAzure AdCloudFormationFinopsIamIso 27001MfaMicrosoft Entra IdOktaPowershellRbacSaaSSoc 2TerraformWorkatoZero Trust
An Hour Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Gaming
Lead localization and culturalization for assigned games, drive MT/LLM and AI-enabled localization workflows, manage localization pipelines, budgets, schedules, and LQA strategy, coordinate cross-functional releases, own vendor relationships and KPIs, mentor producers, and promote internationalization best practices across studio and central teams.
Top Skills: Bug Tracking SoftwareExcelGoogle SheetsLarge Language Models (Llms)Localization Text CmsMachine Translation (Mt)PowerPointTms

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account