Principal ML Platform Architect — Foundation AI

Showcify, Inc.; San Mateo, Northern (CA, KY); Hybrid; USD 295,000 - 345,000; Full time

Job summary

Roblox Corporation seeks a Principal Platform Engineer to design and ship a scalable ML platform, turning complex ML/AI infrastructure into durable APIs, SDKs, and UIs loved by internal developers. The role blends product thinking with backend engineering and infra at scale.

Hands-on ML experience is a plus; building internal platforms that developers love is a must, with a focus on automation and platform-as-code. 10+ years in the field is expected.

Qualifications

• 10+ years of professional experience with system design experience to build a scalable ML platform.
• Proficient in API design and developer experience—GRPC/REST APIs, SDKs, CLIs, and UIs that developers love.
• Bachelor's degree in Computer Science, Computer Engineering, Data Science, or a related technical field.
• Experience building internal ML platforms that developers love is a must.

Responsibilities

• Own platform as a product and set direction end to end: define requirements, write RFDs, ship APIs, SDKs, CLIs, and UIs.
• Bootstrap and maintain core ML Platform components: Serving Layer, Model Registry, Pipeline Orchestrator, Training/Inference control planes.
• Set technical strategy and oversee development of high-scale, reliable infrastructure with clear SLOs.
• Design great developer experiences with paved-paths, defaults, and clear docs to reduce time-to-production.
• Instrument the platform to measure adoption, friction, reliability, and cost.
• Partner across ML Engineering, Data Science, Infra/SRE, Security, Finance to optimize performance and spend.
• Propose and implement new tooling to improve time to production for MLEs.
• Stay abreast of ML/infrastructure trends to ensure adoption of leading-edge technologies.
• Mentor engineers, lead design reviews, drive cross-team architectural decisions.

Skills

API design

Developer experience

System design

ML platform

Backend engineering

Infrastructure as code

Communication

Mentorship

Education

Bachelor's degree in Computer Science, Computer Engineering, Data Science, or a related technical field

Tools

gRPC

REST APIs

SDKs

CLI/UI

Job description

Roblox Corporation seeks a Principal Platform Engineer to design and ship a scalable ML platform, turning complex ML/AI infrastructure into durable APIs, SDKs, and UIs loved by internal developers. The role blends product thinking with backend engineering and infra at scale.

Hands-on ML experience is a plus; building internal platforms that developers love is a must, with a focus on automation and platform-as-code. 10+ years in the field is expected.