Build the brain of an autonomous growth OS. The system you create will manage millions in ad spend and get measurably smarter with every dollar. This is the moat — every competitor has humans optimizing campaigns manually. You are building the intelligence layer that compounds. The Platform engineer creates the tools, you create the decisions. Together you build something nobody else has.
Must Have:
Has built recommendation, optimization, or decision systems where outputs improve future inputs.
Strong statistical reasoning and experimentation judgment under noisy real-world data.
Strong LLM orchestration or agent-system experience for reasoning over campaign context.
Can design optimization policies, scoring systems, or automated recommendation loops.
AI-first development workflow and ability to ship production systems quickly.
Nice to Have:
Ad-tech optimization patterns (bid management, budget allocation, ROAS optimization)
Reinforcement learning (RL) experience is a plus
Hyperparameter optimization (HPO) experience is a plus
Model fine-tuning experience is a plus
Experience building agent-driven automation (LLM agents that take actions)
Background in growth engineering, performance marketing, or data science
Experience with Mastra or similar agent orchestration framework
Own the intelligence and optimization layer of Learn Engine.
Build recommendation engines for bid changes, budget reallocation, pause/boost decisions, and postback optimization.
Turn SSOT campaign data into high-quality optimization guidance and closed-loop decision systems.
Define how the system learns from outcomes and continuously improves campaign strategy over time.
This role owns decision quality, optimization policy, and learning loops — not platform plumbing or simulator infrastructure.
Skills Required
- Experience building recommendation, optimization, or decision systems whose outputs improve future inputs
- Strong statistical reasoning and experimentation judgment with noisy real-world data
- Strong LLM orchestration or agent-system experience for reasoning over campaign context
- Ability to design optimization policies, scoring systems, or automated recommendation loops
- AI-first development workflow and ability to ship production systems quickly
- Ad-tech optimization experience, including bid management, budget allocation, or ROAS optimization
- Reinforcement learning experience
- Hyperparameter optimization experience
- Model fine-tuning experience
- Experience building agent-driven automation with LLM agents that take actions
- Background in growth engineering, performance marketing, or data science
- Experience with Mastra or a similar agent orchestration framework
What We Do
Hellyeah AI is an AI-native growth engine that accelerates marketing teams with autonomous digital workers. The company focuses on building reliable, scalable big data systems and AI-driven products, leveraging agentic frameworks and prompt engineering to influence business operations and decision-making. They empower engineers to think like founders, fostering a culture of autonomy, creative problem-solving, and high standards for technology and product design.
