As a Senior GTM Engineer, you’re a hands-on, full-stack builder embedded in an Ops team (Customer Success, Sales, Marketing, or Data Ops). Most weeks you spend ~70–80% of your time actually building: writing, testing, and shipping code and configurations that power automations and AI-powered agents on HubSpot’s platform.
You are the primary GTM Engineering partner for at least one motion or area in your customer team. You deeply understand how that motion works in practice, design focused POC/MVP experiments, and own end-to-end delivery of agents and automations that improve revenue, efficiency, or productivity for that function.
Ops leaders and partners own the “what”; you make the “how” real in production. You don’t stand up your own platform or parallel product org; you build on top of core HubSpot, Flywheel, or 3rd party platforms, proving what works in your domain and partnering with your leadership to scale winning ideas.
Design and deliver POCs/MVPs end-to-end.
Build and evolve agents on HubSpot’s AI platform.
Implement automations and integrations across the GTM stack.
Operate what you build with solid engineering hygiene.
Partner with your stakeholders to clarify problems, success metrics, and constraints for workflows in your area.
Act as the main GTM Engineering contact for your area.

Requirements

3+ years of hands-on engineering / builder experience—for example: software engineer, internal tools engineer, automation engineer, or very technical BSA/Ops engineer—where you shipped and supported production systems or automations.
You have either:
Shipped at least one AI- or agent-style feature that real users used, or
A strong track record building production systems and a clear interest in applying AI in workflows.
Proficient in Python, SQL, and working with REST/RPC APIs and JSON; comfortable navigating GitHub and service catalogs to stitch together solutions across systems.
Comfortable with Java and REST troubleshooting and with iPaaS like Workato/Zapier/n8n; able to debug integrations and automations end-to-end with limited support.
Understands core GTM metrics (for example, GRR, UUS, CSAT, pipeline velocity, conversion, rep productivity) and connects experiments directly to those levers.
Consistently designs and delivers measurable POCs/MVPs that influence local GTM priorities and demonstrate clear before/after impact.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

PythonSQLREST APIsRPC APIsJSONJavaiPaaSautomation engineeringproduction systemsPOC/MVP design

Soft Skills

problem clarificationstakeholder partnershipengineering hygienecommunicationcollaborationdesign thinkinganalytical thinkingadaptabilitycreativityproject management