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OpenAIOpenAISan Francisco, CA

Senior Software Engineer

Build web apps, APIs, and backend services enabling AI research, evaluation, and synthetic data workflows. Partner with researchers and designers to create reproducible, observable research systems.

293k – 325k/yr
Hybrid7+ YOEFullstack Engineering

About the role

Responsibilities

  • Build web applications, APIs, data models, and backend services for AI research workflows.
  • Build tools to author and manage evaluation tasks, rubrics, graders, suites, and rollout configurations, including workflows for publishing, versioning, auditing, and sharing research artifacts.
  • Automate evaluation runs and generate useful reports for design, research, and engineering teams.
  • Support synthetic data generation workflows for multimodal and conversational research, including tools that combine transcripts, media, and model comparisons.
  • Translate product and research questions into measurable scenarios, automated graders, and human-evaluation campaigns, and develop measures of task quality, coverage, diversity, and semantic spread.
  • Diagnose issues across application code, workers, model endpoints, deployments, and compute infrastructure, and improve reliability through health checks, observability, reproducible launch paths, data integrity safeguards, and automated verification.
  • Lead migrations and dependent changes across research tools, evaluation systems, and supporting services.
  • Partner closely with designers, model researchers, research engineers, and infrastructure teams, and onboard contributors to create high-quality evaluation and synthetic-data workflows.

Requirements

  • 7+ years of professional software engineering experience.
  • Strong full-stack experience across web applications, backend services, APIs, and data models, including ownership of complex systems spanning multiple services or repositories.
  • Expertise in generative AI, multimodal models, or model-evaluation systems.
  • Experience building effective internal tools for both technical and non-technical users.
  • Comfortable debugging distributed workflows and production infrastructure.
  • Strong product judgment and ability to translate ambiguous requirements into concrete plans.
  • Energized by working between designers and researchers in a multidisciplinary team, connecting qualitative judgment to rigorous evidence.
  • Clear communication and effective collaboration across engineering, design, and research.

Nice to Have

  • Expertise in synthetic data generation, simulation, conversational AI, speech, video, motion, or embodied interaction.
  • Experience with automated graders, human evaluation, supervised fine-tuning, reinforcement learning, or experiment- and dataset-management platforms.
  • Operated GPU-backed inference or rollout workloads at very large scale.

Skills

PythonJavaScriptTypeScriptReactNode.jsREST APIsSQLNoSQLAWSDockerKubernetesMachine LearningGenerative AIMultimodal Models
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