About: ActAI is building a proactive smart assistant for everyday users that brings intelligence to conversations, errands, organizing, and workflows with minimal prompting. Its product focuses on reliable long-running workflows, persistent context, and real-world task completion.
Responsibilities:
•Build and ship AI features end-to-end, from models and systems to user experience
•Design and iterate on prompts, tools, memory, and agent workflows
•Turn raw model outputs into structured, reliable, and predictable behaviors
•Debug issues across the model, orchestration, infrastructure, and UX stack
•Optimize latency, cost, and production reliability
•Develop lightweight evaluation frameworks to measure real-world performance
•Work with product and engineering teams to turn ambiguous problems into working systems
•Ensure production ML models meet accuracy, latency, and reliability targets
•Identify and debug production issues, and address their root causes
•Build robust, reproducible, and maintainable data pipelines, training loops, and inference systems
•Collaborate with engineering, product, and research teams to deliver reliable ML-powered features
•Drive model and system iterations through real-world signals and measurable improvements
Requirements:
•Strong foundation in machine learning and modern neural network architectures
•Hands-on experience training, fine-tuning, or deploying ML models
•Ability to write clean, production-quality code
•Comfort working across model, infrastructure, and product abstraction layers
•Strong problem-solving skills in ambiguous, fast-moving environments
•Ability to structure work, exercise judgment, and execute independently
Nice to have: None
Conditions: Location: Poland
