HubSpot · 5 hours ago
Principal Software Engineer - Breeze Assistant
United States
Full-time
Remote
Lead/Staff
$314K/yr - $502K/yrHubSpot is an AI-powered customer platform seeking a Principal Software Engineer for their Breeze Assistant product line. The role involves architectural leadership, rapid experimentation with Generative AI, and mentorship within the engineering organization to enhance AI capabilities integrated into HubSpot's CRM.
AnalyticsCopywritingMarketingSaaSSocial Media
Responsibilities
Architectural Leadership for AI Actions: Define the patterns for how AI agents safely and predictably interact with HubSpot’s CRM and third-party ecosystems (Slack, Google Workspace, Microsoft 365)
Rapid GenAI Experimentation: Act as a "zero-to-one" builder. You stay current with the latest trends in LLMs, RAG (Retrieval-Augmented Generation), and Agentic frameworks (like LangGraph or AutoGen) to rapidly prototype and validate new "System of Action" capabilities
Hands-on, High-Leverage Contributor: You ship production code. You will lead the development of high-impact initiatives, moving from a Jupyter notebook prototype to a petabyte-scale production system with ease
System Reliability & Trust: Ensure that GenAI outputs are not just "cool," but trustworthy. You will drive the strategy around LLM evaluation, observability, and guardrails to ensure accuracy and data privacy
Technical Mentorship & Multiplier: You will elevate the AI fluency of the entire engineering org. You’ll mentor senior engineers on prompt engineering, model selection, and the nuances of building non-deterministic systems
Cross-Functional Influence: Partner with Product and AI Research teams to scope opportunities where GenAI can solve real-world GTM friction, ensuring our technical bets align with HubSpot’s broader AI strategy
Rapid Domain Fluency: The AI landscape changes weekly. You must be able to dive into a new paper, model, or framework today and explain its strategic value to the team tomorrow
Qualification
Required
Architectural Leadership for AI Actions: Define the patterns for how AI agents safely and predictably interact with HubSpot's CRM and third-party ecosystems (Slack, Google Workspace, Microsoft 365)
Rapid GenAI Experimentation: Act as a 'zero-to-one' builder. You stay current with the latest trends in LLMs, RAG (Retrieval-Augmented Generation), and Agentic frameworks (like LangGraph or AutoGen) to rapidly prototype and validate new 'System of Action' capabilities
Hands-on, High-Leverage Contributor: You ship production code. You will lead the development of high-impact initiatives, moving from a Jupyter notebook prototype to a petabyte-scale production system with ease
System Reliability & Trust: Ensure that GenAI outputs are not just 'cool,' but trustworthy. You will drive the strategy around LLM evaluation, observability, and guardrails to ensure accuracy and data privacy
Technical Mentorship & Multiplier: You will elevate the AI fluency of the entire engineering org. You'll mentor senior engineers on prompt engineering, model selection, and the nuances of building non-deterministic systems
Cross-Functional Influence: Partner with Product and AI Research teams to scope opportunities where GenAI can solve real-world GTM friction, ensuring our technical bets align with HubSpot's broader AI strategy
Rapid Domain Fluency: The AI landscape changes weekly. You must be able to dive into a new paper, model, or framework today and explain its strategic value to the team tomorrow
User-First Mindset: You have a track record of building products that people love. You advocate for the end-user in design reviews and are willing to pivot technical strategies if it means a better outcome for the customer
Proven Expertise in Distributed Systems: You have experience building and scaling high-throughput, low-latency systems with strict reliability requirements
GenAI Proficiency: Deep experience with LLM orchestration, vector databases, and building production-grade RAG pipelines. You understand the trade-offs between different model architectures (GPT-4o, Claude, open-source models)
Agentic Thinking: A background in building autonomous or semi-autonomous systems where AI takes actions, handles tool-calling, and manages complex states
A Bias for Action: You prefer a working prototype over a 20-page design doc. You have a habit of turning ambiguity into clear plans and working software
Product Intuition: You care about the 'why' behind the 'what.' You understand the pain points of sales and marketing professionals and build technology that solves them
Benefits
Equity plan to receive restricted stock units (RSUs)
Overtime pay
Flexibility and connection
Accommodations or assistance due to a disability
Supporting candidates who may need alternative arrangements
Company
HubSpot
HubSpot develops cloud-based, inbound marketing software that allows businesses to transform the way that they market online.
Founded in 2006
5001-10000 employees
H1B Sponsorship
HubSpot has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (148)
2024 (125)
2023 (101)
2022 (107)
2021 (43)
2020 (33)
Funding
Current Stage
Public CompanyTotal Funding
$100.5MKey Investors
Scale Venture PartnersMatrixGeneral Catalyst
2014-10-10IPO
2012-11-05Series E· $35M
2011-03-08Series D· $32M
Leadership Team
Yamini Rangan
Chief Executive Officer
Dharmesh Shah
Founder and CTO
Recent News
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