Principal AI Engineer

Logoslabs

San Francisco (CA)

On-site

USD 200,000 - 320,000

Full time

10 days ago

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Benefits offered by this job

Comprehensive Health Insurance

Paid Leave (Vacation/PTO)

Paid Holidays

Sick Leave

Parental Leave

Bereavement Leave

401 (k) Employer Match

Employee Referral Bonuses

Job summary

Egen is seeking a Principal AI Engineer to set the technical direction for our most complex GenAI work and to hands-on build at scale. You’ll architect systems that survive production, elevating engineers to deliver robust AI solutions.

You’ll partner with client leadership, shape solutions in pre-sales, and lead multi-step reasoning at scale while ensuring latency, cost, governance, and reliability.

Qualifications

Proven track record delivering AI systems to production at scale.
Deep expertise in GenAI, LLMs, and agentic architectures.
Strong collaboration with clients and cross-functional teams.
Experience with production-grade ML pipelines and observability.

Responsibilities

Set architecture and ownership for complex GenAI systems end-to-end.
Build production-grade agentic workflows with robust reliability.
Design for latency, cost, and scale; apply MLOps best practices.
Lead and mentor engineers, raise the bar for AI engineering.
Advise clients and shape deals with technical leadership.

Skills

Python

Shell scripting

Architectural thinking

ML/AI engineering

Client-facing

MLOps

Education

Bachelor's or Master's in CS/Engineering

Tools

Vertex AI

Pinecone

pgvector

LangChain

LlamaIndex

Google Cloud

Job description

About Egen:

Egen is a fast-growing and entrepreneurial company with a data-first mindset. We bring together the best engineering talent working with the most advanced technology platforms, including Google Cloud and Salesforce, to help clients drive action and impact through data and insights. We are committed to being a place where the best people choose to work so they can apply their engineering and technology expertise to envision what is next for how data and platforms can change the world for the better. We are dedicated to learning, thrive on solving tough problems, and continually innovate to achieve fast, effective results. If this describes you, we want you on our team.

About the opportunity:

As a Principal AI Engineer, you set the technical direction for our most complex Generative AI work - and you are personally hands-on building it. We treat AI as a software engineering discipline, and you are the person who raises that bar: architecting systems that survive contact with production, and elevating the engineers around you to do the same.

You own the hardest problems in our portfolio - agentic platforms operating at scale, foundation-model and applied-ML work, and AI in regulated, high-stakes environments where being wrong is expensive. Document intelligence and RAG pipelines are part of the toolkit, not the ceiling. You take these systems from an ambiguous business problem to a robust, scalable production service, solving for the real-world constraints - latency, reliability, cost, governance - that separate a demo from a system a client can bet on.

You are also the technical face of our engagements. You partner directly with client leadership to translate business strategy into AI architecture, shape solutions in pre-sales, and earn the trust that turns a project into a program. This role blends deep, current mastery of LLMs and ML with the judgment, communication, and consultative instinct of a senior technical leader.

What You Will Do:

Set technical direction: Own architecture for our most complex GenAI and agentic systems end-to-end, and set the standards - evaluation, observability, responsible AI - that the practice builds to.
Build at the frontier, hands-on: Stay in the code where it matters most - foundation-model and embedding fine-tuning, novel agentic workflows, advanced RAG and semantic search - using Python on Google Cloud (Vertex AI), LangChain/LlamaIndex, and vector search (Vertex AI Vector Search, Pinecone, pgvector).
Engineer for production: Design for latency, reliability, cost, and scale from day one; apply MLOps discipline so systems are served efficiently, monitored, and continuously improved - and actually reach production, where most AI work stalls.
Lead multi-step reasoning at scale: Architect and operate agentic workflows that automate complex reasoning reliably, with the design and verification discipline that keeps multi-agent systems from cascading into failure.
Advise clients and shape deals: Work directly with client leadership to understand strategy, propose state-of-the-art approaches, and shape solutions in pre-sales - the technical authority in the room.
Multiply the team: Elevate senior and mid-level engineers through architecture reviews, mentorship, and setting a high, teachable bar for AI-augmented engineering.

Your Technical Toolkit:

Core Languages: Mastery of Python and shell scripting; fluency across the modern AI engineering stack.
AI/LLM Ecosystem: Deep, current expertise with Google Gemini, GPT-class, and open models (LLaMA); advanced prompt engineering, fine-tuning, and evaluation.
Agentic Systems: Proven experience designing and productionizing agentic and multi-step reasoning systems (MCP, tool use, orchestration) - not just prototypes.
Data & Search: Expertise in vector databases (Vertex AI Vector Search, pgvector, Pinecone) and semantic search at production scale.
Infrastructure: Deep hands-on experience with Google Cloud / Vertex AI and architecting scalable, resilient software systems.
Frameworks: Strong command of LangChain, LlamaIndex, or equivalent orchestration layers - and the judgment to know when not to reach for them.
Engineering foundation: A first-class software engineer - clean, maintainable code, full SDLC ownership, and the architectural judgment to lead others.

Basic Qualifications:

Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.
10+ years in software / AI / ML engineering, with a substantial track record of AI systems delivered to production at scale.
Demonstrated technical leadership - owning architecture and setting direction across engagements or teams, not just individual deliverables.
Proven track record of deploying GenAI and/or agentic products to production environments.
Experience with classic machine learning (neural nets, training, tuning) strongly preferred; foundation-model or novel-model work a distinct plus.
Strong data engineering and SQL knowledge.
Senior client-facing experience - translating technical complexity into business value for executive stakeholders.

Personal Attributes:

Ownership at scale: You take responsibility not just for your code, but for the outcome of the system and the success of the team building it.
Curiosity: The AI landscape changes weekly; you stay at the frontier and bring the team with you.
Consultative authority: You earn the trust of client leadership and are the calm, credible technical voice in a high-stakes room.
Ethics: You hold the line on responsible AI development and data privacy.

Compensation & Benefits:

This role is eligible for our competitive salary and comprehensive benefits package to support your well-being: