Principal Software Engineer, Safety Experience – LLMs & Scale

Roblox Corporation; San Mateo (CA); On-site; USD 295,000 - 345,000; Full time

Job summary

Roblox Corporation is seeking a Principal Software Engineer to join the Safety Experience team. You will design agentic workflows, scale safety features, and mentor engineers while shaping the roadmap in collaboration with product teams.

You will leverage LLMs, microservices, and modern programming languages to build end-to-end safety experiences for a global user base, balancing reliability, performance, and cost. This role requires strong technical leadership and strategic thinking.

Qualifications

• Bachelor's degree in Computer Science or related field with 8+ years of hands-on experience.
• Proven experience developing innovative solutions using LLMs.
• Experience with C#, Java, Python, and modern software design patterns.
• Strong background in microservice architecture, RESTful APIs, and RPC.
• Track record of end-to-end delivery with cross-team collaboration.
• ML experience is a plus.

Responsibilities

• Design and build agentic workflows for customer-facing and internal use cases.
• Stay current with LLM trends and optimize chatbot features for cost.
• Influence roadmap with product, operations, and stakeholders.
• Provide technical leadership and mentorship to engineers.

Skills

LLMs

C#/Java/Python

Microservices

Technical leadership

Education

Bachelor's in Computer Science

Graduate degree preferred

Tools

RESTful APIs

RPC

Job description

Roblox Corporation is seeking a Principal Software Engineer to join the Safety Experience team. You will design agentic workflows, scale safety features, and mentor engineers while shaping the roadmap in collaboration with product teams.

You will leverage LLMs, microservices, and modern programming languages to build end-to-end safety experiences for a global user base, balancing reliability, performance, and cost. This role requires strong technical leadership and strategic thinking.