Senior Applied AI Engineer

Mariner - Californiafull time

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senior

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Castelioncorporation Senior Applied AI Engineer designs and implements scalable AI tools and workflows across the organization. This role defines AI requirements, integrates AI with enterprise systems, and establishes AI development standards.

Responsibilities

Collaborate with teams across the company to define Castelion’s AI tooling and integration roadmap
Architect and implement scalable, production-ready AI integrations for a wide range of use cases across the organization
Integrate AI tools with existing enterprise systems and data sources
Partner with IT, programs and cybersecurity teams to ensure compliance with customer and internal security policies
Establish and maintain organization-wide AI development standards, including model selection criteria, prompt engineering best practices, and governance frameworks
Assess emerging AI technologies to drive strategic internal adoption

Qualification

Understanding of prompt engineeringComfortable working in a fast-paced

Required

7+ years of software development experience with proficiency Python and one static language (e.g. C, C++, C#, Java)
2+ years of Applied AI experience owning an AI agent, LLM-powered workflow, or automation end-to-end from prototype through production
Understanding of prompt engineering, fine-tuning, and model evaluation
Hands-on experience with RAG architecture, vector databases, and embedding models
Strong experience collaborating with diverse stakeholders to gather requirements and develop tools that effectively address their needs
Bachelor’s degree in computer science (preferred) or another STEM field or equivalent work experience

Preferred

10+ years of software development experience
Experience deploying self-hosted AI platforms on cloud infrastructure (Azure/AWS/GCP)
Experience leveraging Model Context Protocol (MCP) to integrate enterprise data sources with AI tools and applications
Knowledge of automated containerized deployment
Comfortable working in a fast-paced, high growth environment with rapidly evolving business needs
Experience building and leading small teams
Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

Company

Castelioncorporation

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Source: greenhouse

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