About GrowthX AI

At GrowthX, we’re building the modern growth engine for marketing teams. Since launching in 2024, we've grown from concept to eight-figure annual revenue. To date, we've raised a $12M Series A led by Madrona Venture Group and we partner with 60+ companies ranging from high-growth startups to industry leaders like Lovable, Webflow, Ramp, Superhuman, Strapi, Abnormal Security, and Augment Code.

We’ve built something different: an operating system that unifies powerful AI workflows with forward-deployed experts to transform content into compounding organic growth. We’re building the growth infrastructure marketing teams wish they’d always had — the system that reliably turns context into strategy, strategy into execution, and execution into measurable growth.

The Role

This role is focused on applied AI: improving agents and multi-step workflows, defining and setting up evals, experimenting with reinforcement learning, and applying cutting-edge technology in production. You’ll design and iterate on AI-driven workflows, drive experimentation and evaluation loops, and fine-tune models where needed.

Responsibilities

• Design and implement scalable AI systems E2E: requirements, modeling, integration, and deployment.

• Improve our multi-agent workflow systems: task decomposition, intent modeling and query rewriting, context summarization, LLM memory, retrieval and ranking.

• Build evals systems that measure agent performance both offline and online to measure quality and guide product decisions.

• Operate across the model lifecycle: data exploration, model development, evaluation, launch, monitoring, and iteration based on performance.

• Work closely with Engineering, Product, Design, and the human-expert loop to translate feedback into measurable quality improvements.

• Stay at the forefront of AI by exploring and evaluating emerging research and techniques, and translate those into the product roadmap

Qualifications

• 5+ years of experience shipping ML/AI systems in production for large-scale, user-facing or data-driven products.

• Deep expertise in traditional ML approaches, NLP/LLMs, recommender systems, search and/or ranking.

• Familiarity with LLM evaluation practices and agent patterns (multi-step reasoning, tool use).

• Proficiency in Python and modern ML infrastructure (model serving frameworks, experiment tracking, observability/monitoring).

• Comfortable working in high-velocity, cross-functional product teams and taking ownership from idea to deployment.

• Strong engineering skills to implement applied AI work in production systems

• MS/PhD in a technical field or equivalent experience.

Preferred Qualifications

• Experience with multi-agent or workflow-based AI systems.

• Hands-on work with retrieval-augmented generation, prompt strategies, or knowledge-centric systems.

• Experience with reinforcement learning methods

• Prior experience in search systems or AI dev tooling space.

Perks:

🌍 Fully Remote Work

• Work from anywhere—your productivity, your space!

  • We do require an overlap with 8am to 12pm PT

• We help set up your work environment to enable your best work.

• Minimal meetings and async communication for deep focus

🏖 Ample Time Off

• Enablement for you to recognize your countries holidays

• We encourage you to take the time you need to recharge!

📚 Professional Growth

• We’re an AI forward culture and work environment - Learn all things AI!

• Access to training, workshops & mentorship programs

• Support for external conferences & industry events

🤝 Collaborative Culture

• Open communication & feedback-driven environment.

• Clear, concise communication is key to our success.

Work Visa: Applicants must have legal authorization to work in the country of residence. We are not able to provide employment visa sponsorship at this time.

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