Software Engineer, Implicit Signals

OpenAI

. Design and build software services and APIs for configuring, running, and managing classifiers and evaluations .

Posted 9/29/2026full-timeSan Francisco • California • United StatesMid-LevelSenior💰 $347,000 - $445,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and building software services and APIs, with a strong focus on performance optimization, production reliability, and collaboration with machine learning teams. Proficient in managing complex systems and improving operational efficiency in fast-paced environments.

Highest-signal resume keywords

API DesignDistributed SystemsModel ServingPerformance OptimizationIncident Response

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DesignBuilding Software ServicesOperating Distributed SystemsConcurrencyCachingFailure RecoveryPerformance TuningDebuggingExperimentation ToolsMachine Learning

Soft Skills

Product JudgmentProblem SolvingCollaborationAdaptabilityCommunication

Industry Keywords

Classification PipelinesAI AgentsData ScienceStatisticsProduction Reliability

Tech Stack

Tools & technologies

Distributed Systems

About the role

Key responsibilities & impact

Design and build software services and APIs for configuring, running, and managing classifiers and evaluations
Build and operate online and offline classification pipelines for reliable, efficient execution at scale
Improve model-serving performance, including throughput, latency, concurrency, and compute utilization
Build tools for experimentation, debugging, and iteration by researchers and data scientists
Own production reliability, observability, and incident response
Reduce the operational burden of running the platform
Partner with machine learning engineers to bring new classification capabilities into production
Work with post-training researchers and data scientists to understand workflows, identify high-impact improvements, and shape the product
Develop services, pipelines, and tools that help users turn ideas into working measurements and iterate quickly
Shape architecture, deliver new capabilities, and maintain dependable systems as workloads and requirements evolve

Requirements

What you’ll need

Experience designing, building, and operating software services or distributed systems at scale
Strong fundamentals in API design, concurrency, caching, performance, and failure recovery
Ability to investigate complex production problems and make sound architectural tradeoffs
Track record of owning software from initial design through deployment and ongoing operation
Strong product judgment and interest in working directly with technical users
Comfort with ambiguous problems and broad ownership across multiple parts of a system
Fluency in using AI agents to move quickly across multiple workstreams in a fast-paced environment
Interest in machine learning, data science, and statistics
Experience with model serving, ML platforms, or inference optimization is a plus
Ability to work from the US office three days per week
Authorization to work in the country where the job is located

Benefits

Comp & perks

Equity
Performance-related bonus(es) for eligible employees
Medical, dental, and vision insurance for you and your family
Employer contributions to Health Savings Accounts
Pre-tax Health FSA, Dependent Care FSA, and commuter expense accounts
401(k) retirement plan with employer match
Paid parental leave: up to 24 weeks for birth parents and 20 weeks for non-birthing parents
Paid medical and caregiver leave: up to 8 weeks
Flexible PTO for exempt employees
Up to 15 days annual PTO for non-exempt employees
13+ paid company holidays
Multiple paid coordinated company office closures throughout the year
Paid sick or safe time
Mental health and wellness support
Employer-paid basic life and disability coverage
Annual learning and development stipend
Daily meals in offices
Meal delivery credits as eligible
Relocation support for eligible employees
Charitable donation matching may be provided
Wellness stipends may be provided