AI Engineer (AIMS Martek)

HubSpot•Cambridge, MA

28d•Remote

About The Position

Our mission at HubSpot is to help millions of organizations grow better. AI is central to that mission — and on the AIMS (AI Marketing Solutions) team, you’ll help shape how Generative AI powers HubSpot’s next chapter of growth. Role Summary As an AI Engineer on the AIMS team, you’ll sit at the intersection of AI, engineering, and marketing innovation. You’ll partner directly with marketers and product stakeholders to turn early-stage ideas into scalable, AI-powered tools that drive measurable business impact. This role blends hands-on development with creative problem-solving — building production-ready systems that bring LLMs, multi-agent workflows, and modern cloud infrastructure into real-world marketing applications.

Requirements

2+ years of professional software development experience or equivalent hands-on technical experience.
Strong proficiency in backend development using Node.js and/or Python.
Experience building and consuming REST APIs and working with databases.
Experience applying Generative AI concepts (LLMs, prompt engineering, RAG, multi-agent systems) to real-world problems.
Working knowledge of cloud platforms such as AWS, GCP, or Azure.
Familiarity with marketing technology ecosystems (e.g., CRM systems, workflow automation tools, CDPs, or data warehouses).
Experience using version control systems (Git) and modern software development workflows.
Ability to explain technical concepts clearly to non-technical stakeholders.

Nice To Haves

Experience with AI frameworks and tooling (e.g., OpenAI APIs, transformers, vector databases, LangChain).
Background in Java or experience with multi-agent systems.
Experience with the HubSpot platform or similar marketing automation software.
Experience building or orchestrating multi-agent systems.
Demonstrated curiosity and a growth mindset for learning emerging AI technologies.

Responsibilities

Develop and deploy high-quality software and cloud-based infrastructure for AI-driven marketing applications.
Partner with marketers and product stakeholders to translate ideas into prototypes and scalable AI tools.
Build and maintain RESTful APIs and backend services using technologies such as Node.js and Python.
Design and implement data pipelines, retrieval systems (RAG), and multi-agent workflows leveraging LLMs.
Evaluate emerging AI technologies and rapidly test concepts to inform HubSpot’s marketing innovation roadmap.
Assess AI project ideas for technical feasibility, scalability, and potential business impact.
Document AI systems, architectural decisions, and best practices to ensure maintainability and clarity.
Communicate complex technical concepts to non-technical audiences with confidence and precision.
Collaborate across engineering, data science, and marketing teams to bring AI-powered workflows to life.
Contribute to a culture of experimentation, learning, and technical excellence across the AIMS team.