The Challenge
HumanSignal powers data labeling and evaluation for the world's leading AI teams — Label Studio is the de facto standard with 250K+ users. As the founding GTM engineer, you'll architect the AI systems that transform how the company acquires and scales customers, becoming a force multiplier for the entire go-to-market motion.
Your Mission
Design and architect the GTM AI stack, mapping integrations across CRM, marketing automation, product analytics, and data warehouse
Deploy first AI-powered agent for lead qualification and routing, measuring accuracy and time-to-triage improvements
Build foundational internal tools and lightweight services that eliminate 3+ manual GTM workflows
Establish performance baselines and feedback loops for all AI systems to enable rapid iteration
Scale AI agents across full funnel: lead qualification, personalized lifecycle marketing, sales assist, account intelligence, and user activation
Achieve 30%+ improvement in GTM team velocity (time-to-action, deals researched, accounts analyzed per FTE)
Implement continuous feedback loops that improve AI system performance by 20%+ quarter-over-quarter
Build out 4-5 mission-critical AI workflows that reduce manual GTM work by 40%+ across marketing, sales, and customer success
KPIs You'll Own
GTM Velocity (manual tasks eliminated)
Measure time saved per GTM team member per week through automation; target 30%+ improvement in FTE throughput.
AI System Accuracy
Track precision/recall on lead qualification, routing, and enrichment; maintain >85% accuracy on core workflows.
Pipeline Influence
Measure incremental revenue influenced by AI-powered account insights, sales assist, and activation signals.
System Reliability & Uptime
Ensure 99.5%+ uptime on production AI agents and integrations; track error rates and incident response time.
Learning Velocity
Monitor time-to-insight across funnel (lead-to-qualified, opportunity-to-decision, user-to-activation) and track improvement.
Tools & Stack
Your Team
Your Manager
Likely VP/Head of GTM or Chief Revenue Officer (not specified)
Current Team
Founding GTM engineer role — you'll be building the team from scratch
New role — founding GTM engineer position
The Package
Salary
$180K-$220K base
Equity
Likely included (Series stage company, not specified)
Remote
On-site preferred (San Francisco, Austin, or Lisbon); hybrid or remote negotiable
Benefits & Perks
Company Intelligence
HumanSignal builds the platform for creating, curating, and evaluating high-quality training data for AI systems. Label Studio, their open-source flagship, is used by 250K+ teams and powers hundreds of millions of labeled samples. They're scaling from bottom-up OSS adoption into enterprise-grade Label Studio Enterprise with security, collaboration, and production-grade AI pipelines.
Customers
Leading AI teams (implied: OpenAI, Anthropic, Google, Meta, and enterprise AI builders)
Culture
Fast-shipping, hands-on, product-obsessed, solving real-world AI data quality problems
Is This Role For You?
- You've shipped production AI systems and agents — RAG, fine-tuning pipelines, LLM-powered workflows, or agentic tools
- You thrive building integrations across multiple data sources and tools (CRM, analytics, data warehouse, enrichment APIs)
- You love founding ambition: architecting systems from scratch, defining workflows with stakeholders, and measuring impact
- You're comfortable with rapid iteration and trade-offs — you'll prototype, test, learn, and scale based on real GTM feedback
- You understand GTM motion (lead generation, qualification, sales workflows, customer activation) and can translate problems into AI solutions
- You're a pure ML researcher or prefer theoretical work over shipping pragmatic systems — this role is 80% systems engineering, 20% ML
- You need geographic flexibility — on-site presence in SF/Austin/Lisbon is strongly preferred for this founding role
- You want a clear roadmap and stable requirements — GTM priorities shift, feedback loops are messy, and you'll navigate ambiguity constantly
Interview Process
Initial Conversation
Discuss your AI systems shipped, GTM problem-solving experience, and what excites you about the HumanSignal opportunity
Technical Deep Dive
Walk through a past AI/agent system you built — architecture, integrations, performance loops, challenges, and iteration
GTM System Design
Design a real GTM workflow (e.g., lead qualification agent) — scope, integrations, success metrics, and rollout plan
Founder Conversations
Meet GTM, product, or engineering leadership to align on vision, pace, and working style
Interested in this role?
Apply now and hear back within days, not weeks.
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About Growth Marketing Roles
Growth marketers drive user acquisition, activation, and retention through data-driven experimentation. They sit at the intersection of product, data, and marketing — running A/B tests, building funnels, and scaling what works.