Principal AI Engineer: Secure Architecture & AI Solutions

FetchJobs.co; United States; On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Health benefits

401(k) with company matching

Employee Share Purchase Plan

Paid time off

Disability insurance

Life insurance

Job summary

LexisNexis is seeking a Principal AI Engineer to lead architecture and production AI solutions. You will translate complex requirements into scalable, secure AI capabilities, working with product managers, data scientists, engineers, and government stakeholders.

This role balances hands-on development with technical strategy, establishing standards, guardrails, and governance while mentoring teams and shaping AI strategy across the organization.

Qualifications

• Bachelor's degree in CS/Engineering/Data science or related field; or equivalent practical experience.
• Production AI applications or platforms development experience.
• Hands-on Python, APIs, cloud services, data pipelines, and source control.
• Experience with generative AI: LLMs, retrieval-augmented generation, embeddings, AI agents.
• Cloud-native architecture, system integration, security practices.
• Ability to obtain Public Trust clearance.

Responsibilities

• AI Solution Design and Development: design, prototype, and implement AI-powered applications, services, agents, and workflows.
• Translate requirements into practical AI solutions using LLMs, NLP, CV, and other AI tech.
• Develop reusable AI components, APIs, evaluation frameworks, and reference implementations.
• Balance rapid experimentation with disciplined engineering for secure, reliable production systems.
• Evaluate models, platforms, and vendors for performance, security, and cost.

Skills

Python

APIs

Cloud services

Data pipelines

Source control

Large language models

NLP

Security practices

Education

Bachelor's degree in CS/Engineering/Data science or related field

Tools

None

Job description

LexisNexis is seeking a Principal AI Engineer to lead architecture and production AI solutions. You will translate complex requirements into scalable, secure AI capabilities, working with product managers, data scientists, engineers, and government stakeholders.

This role balances hands-on development with technical strategy, establishing standards, guardrails, and governance while mentoring teams and shaping AI strategy across the organization.