Senior Machine Learning Engineer, Recommendation Systems

Overview Senior Machine Learning Engineer, Recommendation Systems at Launch Potato. You will build, deploy, and scale ML systems powering real-time recommendations across millions of user journeys, with a focus on personalization that impacts engagement, retention, and revenue. Responsibilities Build and deploy ML models serving 100M predictions per day to personalize user experiences at scale Enhance data processing pipelines (Spark, Beam, Dask) with efficiency and reliability improvements Design ranking algorithms that balance relevance, diversity, and revenue Deliver real-time personalization with latency Run statistically rigorous A/B tests to measure true business impact Optimize for latency, throughput, and cost efficiency in production Partner with product, engineering, and analytics to launch high-impact personalization features Implement monitoring systems and maintain clear ownership for model reliability Qualifications 5 years building and scaling production ML systems with measurable business impact Experience deploying ML systems serving 100M predictions daily Strong background in ranking algorithms (collaborative filtering, learning-to-rank, deep learning) Proficiency with Python and ML frameworks (TensorFlow or PyTorch) Skilled with SQL and modern data warehouses (Snowflake, BigQuery, Redshift) plus data lakes Familiarity with distributed computing (Spark, Ray) and LLM/AI Agent frameworks Track record of improving business KPIs via ML-powered personalization Experience with A/B testing platforms and experiment logging best practices Competencies Technical Mastery: ML architecture, deployment, and tradeoffs Experimentation Infrastructure: MLflow, Weights & Biases (W&B) Impact-Driven: Models that move revenue, retention, or engagement Collaborative: Works with engineers, PMs, and analysts Analytical Thinking: Data-driven problem solving and rigorous testing Ownership Mentality: Post-deployment ownership and continuous improvement Execution-Oriented: Production-grade delivery with rigor Curious & Innovative: Applies ML advances to personalization About Launch Potato WHO ARE WE? Launch Potato is a profitable digital media company delivering 30M monthly visitors across brands such as FinanceBuzz, All About Cookies, and OnlyInYourState. As The Discovery and Conversion Company, we connect consumers with leading brands through data-driven content and technology. Headquartered in South Florida with a remote-first team spanning 15 countries. We operate with speed, ownership, and measurable impact. WHY JOIN US? You’ll accelerate your career by owning outcomes, moving fast, and driving impact with a global team of high-performers. We convert audience attention into action through data, machine learning, and continuous optimization. This role lets you work on systems serving 100M predictions daily, directly impacting engagement, retention, and revenue at scale. We are an Equal Employment Opportunity company. We value diversity, equity, and inclusion. We do not discriminate based on race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, protected veteran status, disability status, or other legally protected characteristics. J-18808-Ljbffr

Location: Manaus, Pernambuco, BR

Posted Date: 9/11/2025