Member of Technical Staff (Backend & Infrastructure)

About the role

Physical AI, a real model of the world, is the next trillion dollar opportunity and a foundational pillar for energy, robotics and superintelligence. At Jua we are building it now. Our models already run on four continents and help power the energy buildout needed to support ever larger intelligence. We are assembling a world-class team of researchers and entrepreneurial minds to turn this model into reality at global scale. If you want the opportunity of your life, come build physical AI with us.

Requirements

• We're redefining earth simulation with machine learning, building a system that outperforms traditional models in speed, precision, and accuracy. Our team moves fast, leveraging a versatile tech stack and state-of-the-art cloud infrastructure to maximize performance and efficiency.
• We believe in using the right tools for the job. We are combining robust web technologies, advanced ML frameworks, and powerful numerical computing. With a focus on type-safe programming and infrastructure-as-code, we ensure scalability without excess complexity.
• Our Tech Stack
• Core Languages: Python is our go-to for backend development, data pipelines, and ML integration. Deep experience with modern Python is a must.
• Databases & Storage: We operate a large ClickHouse cluster for analytics workloads and PostgreSQL for transactional data. Experience with distributed databases and data modeling is highly valued.
• Data Pipelines & Orchestration: We build reliable, scalable data pipelines using Dagster for orchestration and comprehensive observability.
• Cloud & Infrastructure: We use a mix of cloud (AWS) and bare metal infrastructure, with tools like Terraform for infrastructure-as-code.
• Other Tools: While Python is our primary language, we believe in using the right tool for the job. You'll have the freedom to introduce new technologies when they make sense.
• Responsibilities and tasks
• Help to shape our architecture and roadmap: Play a key role in defining how we build and scale. As an early senior engineer, you'll influence technical strategy, refine system architecture, and ensure long-term maintainability while moving fast.
• Bring ML models to production: Work closely with ML engineers to deploy models that power real-world decision-making, ensuring performance, reliability, and usability for customers, including power traders.
• Identify and tackle technical challenges: Address performance bottlenecks, refactor critical systems, and strike the right balance between rapid iteration and long-term stability.
• Prototype and iterate quickly: Move fast, test ideas, and refine approaches with short feedback cycles to drive continuous improvement.
• Need-to-have
• Bachelor's degree (or higher) in Computer Science or a related field.
• 3+ years of experience in a Software Engineering role.
• Strong experience in deploying and supporting large-scale production systems.
• Ability to make pragmatic, fast-paced architectural decisions while managing technical debt effectively.
• Proactive in identifying problems, performance bottlenecks, and areas for improvement.
• Nice-to-have : Exposure to Data Engineering or related experience.
• At the end of your first 30 days, you will have
• Gained deep product immersion: Understood the "what" and "why" of the product, contributed to discussions, formed opinions and comfortably expressed them, and actively participated in team retros.
• Deployed scoped components: Delivered isolated, limited-scope features, addressed feedback, and deployed quickly with minimal supervision, making confident decisions along the way.
• Contributed your valuable insights to system architecture and design discussions, effectively collaborating with the rest of the engineering team to set architectural goals.
• Engaged with Jua's principles and values: Collaborated across teams and built independent working relationships.
• About you
• You work in alignment with our operating principles. These principles guide how we make decisions, collaborate, and build at Jua. You embody them in your work, continuously evolving as we evolve, and integrating them into everything you do.
• You take initiative and drive action. You proactively identify challenges and opportunities, taking ownership without waiting for direction. You thrive in an environment where autonomy and action lead to impactful re

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