Senior Simulation Engineer

Build and run simulation systems that model real-world AI workflows and produce concrete, evaluable outputs. This is an execution-focused engineering role for someone who ships working simulations, not designs abstractions.

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Role Overview

The Senior Simulation Engineer will be responsible for implementing runnable simulations used to evaluate complex, multi-step AI systems in high-stakes domains.

This role is hands-on and execution-driven. You will take defined requirements and turn them into working simulation runs that emit real outputs (e.g., CSV/JSON artifacts, logs, evaluation files). Success is measured by whether the simulation runs reliably, produces usable artifacts, and can be executed by others without hand-holding.

You will work closely with the founder and data scientists, but you are expected to independently own implementation and delivery.

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Responsibilities

• Build end-to-end simulation runs for multi-step AI or agent workflows
• Implement deterministic simulation harnesses that take defined inputs and produce concrete outputs
• Model document flows, system state, and decision steps within simulations
• Generate structured artifacts from simulations (e.g., CSV/JSON outputs)
• Ensure simulations are reproducible, inspectable, and debuggable
• Add lightweight logging or instrumentation to support evaluation and triage
• Document how to run simulations so others can execute and inspect results

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Qualifications

• 6+ years of professional engineering experience (backend, systems, or platform engineering)
• Strong Python skills and experience building execution-heavy systems
• Experience with workflow engines, pipelines, simulations, or test harnesses
• Comfort working with structured data outputs (CSV, JSON, Parquet)
• Strong debugging instincts and ability to reason through multi-step execution
• Ability to work independently in a fast-moving, founder-led environment

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Preferred Skills

• Experience building simulation or testing frameworks
• Background in evaluation, QA, or validation systems
• Experience modeling stateful systems or time-based workflows
• Exposure to regulated or high-stakes domains (finance, healthcare, audit)
• Familiarity with multi-step AI or agent workflows (helpful, not required)

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Employment Details

3 month contract or contract-to-hire. 20 hours/week (flexible based on fit and scope)

Optimal start date:

February 2, 2026

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How to Apply

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