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Responsibilities
At Salesloft, our Principal Engineer for AI sets the technical direction for how machine intelligence works across our Predictive Revenue System. This is the most senior individual-contributor role on our AI engineering team: you will architect the systems that turn LLMs, machine learning models, and agentic workflows into production capabilities that thousands of enterprise revenue teams depend on.This is deep, ambiguous, frontier work. You will make the foundational architectural decisions for AI at Salesloft — how we serve models at scale, how we build reliable systems on top of non-deterministic components, how we evaluate and guardrail agentic behavior, and how we keep pace as the underlying foundation models evolve. You will set the standards other engineers build on and act as a technical multiplier across the AI organization.On a day-to-day basis, you will:Set the technical architecture and direction for AI systems across the platform — model serving, LLM-powered features, agentic workflows, and the infrastructure beneath them.Design production-grade systems that are reliable and observable despite being built on non-deterministic, probabilistic AI components.Architect evaluation frameworks, guardrails, and quality systems that make AI behavior safe, measurable, and trustworthy at enterprise scale.Lead the most complex AI engineering problems end to end — from research-adjacent prototyping through hardened production delivery.Establish engineering standards and best practices for building AI-native systems, and mentor senior engineers across the org.Keep the platform at the frontier by evaluating and integrating advances in foundation models, agent frameworks, and the modern AI stack.This role lives at the heart of how we Lead From the Front: you'll work at the edge of applied AI, prototype rapidly, and make architectural bets ahead of the field. And in the spirit of how we Make Your Mark, you'll set the AI engineering standards and systems that the entire organization builds on — engineered for scale, not for a demo.WHAT WE'RE LOOKING FORWe are looking for an engineer who operates at the highest level of technical authority in AI systems — someone who has architected and shipped production AI at scale and understands the deep challenges of building reliable systems on probabilistic foundations. You lead through technical credibility and make the engineers around you better.You embody what we call Evidence Over Ego — you make architectural decisions from evaluation data and evidence rather than hype, you invite rigorous challenge, and you change direction when the models or the data move. You bring systems thinking to a genuinely unsolved problem space and build for durability.This is the right role if you want to define how AI works on a platform at the center of enterprise revenue.THE TEAMThe Salesloft AI Engineering organization builds the machine intelligence at the core of the Predictive Revenue System. The team works at the intersection of applied research and production engineering, in close partnership with Product, Data Science, and Data Platform Engineering.The team Moves as One — AI engineering, product, and data science share ownership of shipping trustworthy AI and make hard technical calls together. And we are relentlessly Customer Inspired: every AI capability is measured against whether it makes revenue teams genuinely more successful and more confident in the system.THE SKILL SETExtensive experience building and architecting production software systems at scale, with significant depth in AI/ML systems.Hands-on experience building production systems on top of LLMs or machine learning models — including designing for the challenges of non-deterministic behavior.Deep expertise in distributed systems, model serving, and the infrastructure required to run AI reliably at scale.Proven experience designing evaluation frameworks, guardrails, or quality systems for AI-driven features.A track record of setting technical architecture and standards across teams and mentoring senior engineers.Strong command of a major programming language (e.g., Python, Java, or Go) and modern cloud infrastructure (AWS or GCP).Hands-on experience with agentic systems — designing and hardening AI agents that take autonomous action in production.Depth in the modern AI stack — retrieval-augmented generation, vector stores, agent frameworks, model orchestration, or evaluation tooling.BENEFITSFor more information about our company's comprehensive benefits please visit: https://salesloftbenefits.com/
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