Model Behavior Engineer – Reasoning and Decision Making

Elicit

. Understand decisions users and domain experts need to make in scientific R&D and commercial strategy .

Posted 10/17/2026full-timeRemote • California • United StatesMid-LevelSenior💰 $220,000 - $320,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong engineering and architectural judgment while designing reliable software abstractions and data structures for reasoning workflows. Capable of conducting rigorous analysis and experimentation to improve systems and validate outcomes in scientific R&D and commercial strategy.

Highest-signal resume keywords

Python ProgrammingData AnalysisModel API ExperienceSoftware Design and ArchitectureExperimental Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Quantitative AnalysisCode DebuggingSoftware Abstraction DesignData Structure DevelopmentSystem IntegrationModel EvaluationReasoning Workflow DevelopmentFailure InspectionExperimentationCoding Assistant Utilization

Soft Skills

Clear CommunicationCuriosityRigorous ThinkingProblem DecompositionCollaboration

Industry Keywords

Scientific R&DCommercial StrategyAgent EnvironmentsLanguage ModelsUsable SoftwareExtensible SoftwareAmbiguous Problem SolvingEvidence-Based Decision MakingTechnical ExplanationUser-Centric Design

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Understand decisions users and domain experts need to make in scientific R&D and commercial strategy
Identify objectives, constraints, available evidence, and important unknowns
Define and measure good reasoning using example inspection, expert judgment, and quantitative analysis
Build evaluations for underspecified problems and validate that scores reflect meaningful improvements
Investigate model and agent failures and turn observations into testable hypotheses
Experiment with problem decomposition, context, tools, information-seeking, and self-checking approaches
Design agent environments and representations for problems, evidence, assumptions, and unresolved questions
Design reliable software abstractions, data structures, and component boundaries for reasoning workflows and evaluations
Balance simplicity, flexibility, reliability, latency, and cost
Write maintainable code and participate in design and code reviews
Test, monitor, diagnose, and integrate systems into the product
Collaborate with engineers, product, design, and domain experts
Take problems from investigation and experimental design through implementation and product use
Improve systems built around existing frontier models, with training or finetuning where useful

Requirements

What you’ll need

Rigorous thinking about ambiguous problems, including identifying hidden assumptions and weighing conflicting evidence
Curiosity across domains and ability to learn unfamiliar subjects
Clear communication with people of different expertise
Ability to devise useful experiments without established benchmarks
Ability to inspect failures in detail and distinguish evidence from noise
Ability to independently write and debug code
Experience working with data and model APIs
Comfortable with Python or a comparable programming language
Practical familiarity with language models and their capabilities and limitations
Strong engineering and architectural judgment
Experience building understandable, usable, and extensible software
Effective use of coding assistants while verifying the resulting design and code
Evidence through substantial projects, thoughtful experiments, and clear technical explanations
Ability to travel for quarterly retreats and in-person coworking events
Role optimized for candidates contributing at senior L4 level or above

Benefits

Comp & perks

Flexible work environment with office or remote work
Quarterly team retreats and coworking events
Fully covered health, dental, vision, and life insurance for the employee
Generous family insurance coverage
FSA/HSA
Flexible vacation policy with a minimum recommendation of 20 days/year
Company holidays
$200 monthly wellbeing stipend
401K with a 6% employer match
New Mac and $1,000 workstation/home office budget in the first year
$500 workstation/home office budget every year thereafter
$1,000 quarterly AI Experimentation & Learning budget
Team administrative assistant for personal and work tasks
Above-market equity with employee-friendly equity terms