Principal Engineer - Machine Learning Architecture
MarqetaFull Time
Expert & Leadership (9+ years)
Candidates should have 7+ years of experience in ML engineering, with at least 2 years leading technical teams. A Bachelor's or Master's degree in Computer Science or equivalent experience is required, along with deep expertise in large-scale personalization systems and modern ML architectures such as two-tower, transformer-based, and graph neural networks. Strong system design skills for ML infrastructure, proven ability to mentor engineers and drive technical decisions, and experience managing stakeholder relationships and project delivery are essential. Experience in adtech, e-commerce, or content platforms, published ML contributions, experience with multi-objective optimization, and knowledge of reinforcement learning for personalization are considered nice to have.
The Lead Machine Learning Engineer will lead a team of 3-5 ML engineers in building next-generation personalization and optimization systems. This role involves architecting multi-stage ranking systems, defining the technical roadmap aligned with business objectives, and driving improvements in model quality, system reliability, and development velocity. Responsibilities also include establishing best practices for model development and deployment, partnering with product, data science, and engineering teams, and contributing hands-on to critical model development, with approximately 50% of the time dedicated to coding.
Digital media company connecting consumers with products
Launch Potato operates in the digital media sector, focusing on connecting consumers with new products and services through its various digital brands. The company utilizes smart marketing strategies, advanced engineering, and data science to enhance consumer discovery and engagement. Its business model includes generating revenue through advertising, affiliate marketing, and lead generation, allowing it to effectively match consumers with offerings that suit their needs. Unlike many competitors, Launch Potato emphasizes a distributed global team, which fosters a flexible and innovative work culture. The company's goal is to help consumers improve their lives by providing access to valuable products and services while maintaining a strong focus on growth and workplace satisfaction.