Scale AI

Principal Software Engineer, GPS

Scale AI
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14 hours ago
London, United KingdomStaff+

Responsibilities

  • Solve the hardest technical problems across public-sector programs and unblock projects with unclear paths forward.
  • Lead technical discovery with clients, scope proofs of concept, and define focused approaches for demonstrating value.
  • Build and productionize AI agents, evaluation pipelines, data systems, and knowledge systems.
  • Define cohesive, secure, and reusable solution architectures and technology foundations.
  • Mentor engineers through pairing, design reviews, and code reviews while raising the engineering bar.
  • Partner with senior company and client executives on high-stakes technical and business trade-offs.
  • Convert field learnings into reusable platform capabilities and lead agentic engineering practices.

Requirements

  • Bachelor’s degree in Computer Science, Mathematics, or a related quantitative field, or equivalent practical experience.
  • 10+ years of post-graduation engineering experience with proficiency in Python, TypeScript/JavaScript, Java, or C++.
  • 5+ years applying AI/ML in production, including generative or agentic AI applications, RAG systems, or evaluation pipelines.
  • Deep system design and architecture expertise, including experience with cloud-based machine learning platforms such as AWS, GCP, or Azure.
  • Demonstrated ability to take ambiguous early-stage problems from concept through prototype and production.
  • Experience mentoring engineers and raising the technical standards of a team or organization.
  • Experience working directly with clients ranging from engineering teams to senior executives.
  • Strong written and verbal communication skills.
  • Preferred qualifications include forward deployed engineering experience, startup or founding-engineer experience, large-scale AI deployment, government or regulated-industry programs, on-premises or customer-controlled deployments, and UK government security clearance such as SC or DV.

Benefits

  • Role is based in London.
  • Travel to client sites may be required depending on engagements.
Scale AI

About Scale AI

5,001-10,000 employees

Scale AI builds data annotation services and AI development tools for enterprises and government agencies, sold as a platform and managed services. Its products include the Scale Generative AI Platform for building and evaluating agents and the Data Engine for collecting, curating, and labeling training data, including RLHF and model evaluation. Founded in 2016 and headquartered in San Francisco, the company is privately held and works across domains from computer vision to LLM applications.

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