• Lead and support engineering managers and their teams building platform systems for personalized recommendations across Spotify • Set and evolve the technical vision for foundational capabilities, including targeting, serving, evaluation, and agent-driven systems • Make thoughtful decisions about what should become platform capabilities, ensuring teams can move quickly without unnecessary complexity • Guide incremental platform evolution, enabling continuous delivery rather than large, disruptive rewrites • Partner closely with product, data science, and engineering leaders to align priorities across multiple squads • Stay close to the technology when needed, contributing to architecture decisions and resolving complex production challenges • Encourage adoption of AI-assisted development tools and shape how teams use them effectively in day-to-day work • Hire, develop, and grow engineering leaders and individual contributors, building a strong and inclusive team culture

• Develop, train, and optimize machine learning models for various mobile app features. • Research and implement state-of-the-art AI techniques to improve user engagement and app performance. • Collaborate with cross-functional teams to integrate AI-driven solutions into our applications. • Design and maintain scalable ML pipelines, ensuring efficient model deployment and monitoring. • Analyze large datasets to derive insights and drive data-driven decision-making. • Stay updated with the latest AI trends and best practices, incorporating them into our development processes. • Optimize AI models for mobile environments to ensure high performance and low latency.

Role Description We are seeking a Senior Machine Learning Engineer (Tech Lead) for a new Robot Learning team focused on whole-body loco-manipulation for precision tasks in heavy manufacturing. - Set the ML technical direction for the team, including architectural choices on perception, reasoning, and action generation; training methodology; and data strategy. - Own the architectural workstreams that define the team's research and engineering bets across action-policy learning, world-model-based supervision, and policy-orchestration interfaces. - Design hybrid physics-ML architectures for the integrated loco-manipulation stack, ensuring real-time compensation for base motion. - Own cross-functional partnerships with hardware teams, domain experts, and customer-facing assurance standards. - Drive a phased deployment strategy that builds production trust over time. - Mentor and shape the team, guiding junior and intermediate ICs across software, ML, robotics, and perception backgrounds. - Establish code-quality standards, review practices, and engineering norms while writing code throughout. Qualifications - Ph.D. or Master's degree in Robotics, Mechanical Engineering, Electrical Engineering, Computer Science, or a related field or equivalent experience. - 5+ years of hands-on robot learning experience with sim-to-real policies on real robots. - Demonstrated technical leadership and mentorship experience. - Deep sim-to-real expertise, including domain randomisation and system identification. - Full-stack robot learning proficiency across simulation construction, policy training, data collection, real-world deployment, and failure diagnosis. - Experience with physics-informed ML or hybrid control. - Strong programming skills in Python and C++. - Strong communication skills for conveying complex technical concepts. - Demonstrated independent technical authority in a tech-lead capacity. Requirements - Edge inference depth (TensorRT, ONNX, edge-class deployment). - Loco-manipulation experience on legged platforms. - Precision manipulation or surgical robotics experience. - Flow-matching action-head design experience. - Visual self-supervised representation learning experience on robot or 3D-vision tasks. - Multi-skill workflow or hierarchical policy design experience. - Experience building ML capability from early stage. Benefits - Daily free lunch to keep you fueled and connected with the team. - Flexible PTO for taking time when needed. - Comprehensive medical, dental, and vision coverage. - 6 weeks fully paid parental leave, plus an additional 6–8 weeks for birthing parents. - 401(k) retirement plan through Empower. - Generous employee referral bonuses.

Role Description At Phantasma Labs, we’re building smart software that helps factories plan better. Our AI co-pilot helps factories schedule production more efficiently, adapt to changes faster, and make the most of available resources, without needing tons of data or complicated tools. We work with manufacturers across Europe and the US and team up with ERP and MES providers to bring our solution directly into real production workflows. We’re based in Berlin, but remote-first, so you don’t have to be here to join us. We’re a lean, international team with big ambitions, building what we believe is one of the most advanced production planning tools in the world. - Write robust, scalable, and production-ready Python code - Provide code reviews, guidance, and mentorship to fellow developers to maintain high coding standards - Write unit tests and integration tests (unittest, pytest, etc.) - Design, engineer, and optimize features in the digital twin for Reinforcement Learning (RL) simulations using Python (Python data structures, NumPy, Pandas, etc.) - Create, optimize, and maintain training and evaluation scripts (for RL agents) - Set up and maintain Python environments using modern tools (uv, conda, etc.) - Work collaboratively using git (GitHub) - Participate in customer calls to understand and translate requirements into actionable technical features - Brainstorm ideas to improve the RL agent, including algorithms, rewards, and architecture Qualifications - A background in Computer Engineering/Mathematics/Machine Learning/Industrial Engineering or related field - 5+ years of Python experience - 2+ years of experience in factory shopfloor operations as engineer or planner - Or alternatively, 2+ years experience in ERP/MES systems for factories - Strong grasp of manufacturing processes across various domains like discrete manufacturing, line production, and engineer-to-order, etc. - Basic understanding and experience in developing/application of RL algorithms Requirements - 3+ years of experience in factory shopfloor operations as engineer or planner - Or alternatively, 3+ years experience in ERP/MES systems for factories - Research experience in developing RL algorithms - CI/CD pipeline experience (GitHub actions) - Experience in using libraries like Pytorch, Optuna, MLflow Benefits - Ownership from day 1: small team, fast feedback, visible results - Collaborate with a strong team: work alongside highly skilled ML specialists working on cutting-edge AI optimization, and experienced software engineers building the production-grade systems that bring it to life - A supportive, open culture: clear communication, strong collaboration and flat hierarchies - Flexible working hours & hybrid setup: work remotely or from our Co-working space in Berlin Mitte – whatever helps you do your best work - A company laptop to support your work Company Description At Phantasma Labs, we’re building smart software that helps factories plan faster and better. Our AI figures out how to schedule production more efficiently, adapt to changes faster, and make the most of available resources – without needing tons of data or complicated tools. We train our models in simulated factory environments (Digital Twins) using reinforcement learning, which lets us find better solutions way faster than traditional systems. We work with mid-sized manufacturers across Europe and team up with ERP and MES providers to bring this tech directly into real production workflows. We’re a lean, international team with big ambitions. Backed by top investors and working closely with global industry leaders, we’re on a mission to revolutionize manufacturing efficiency with cutting-edge AI tech.