# Walter Beller-Morales > Engineer Location: New York City Metropolitan Area, United States Profile: https://flows.cv/walterbellermorales ## Work Experience ### Staff Software Engineer @ Cohere Jan 2023 – Present Model Serving Team. Scaling LLM inference. ### Chief Technology Officer @ Koala Jan 2022 – Jan 2023 Defined the technical and business strategy by creating a vision to leverage engineering opportunities into new product areas. Successfully navigated the company through technical due-diligence during an acquisition. Created formal standards for engineering managers and guided two engineers in their transition to become managers. Defined leveling systems and growth tracks for individual contributors and engineer managers. Architected and built a custom analytics data-pipeline built in Rust to reliably and efficiently collect ~10M analytics events per day from all user-facing applications and store them in Snowflake. Collaborated with data scientists to extract actionable insights from analytics using Tableau and integrate data-driven decision making into the engineering process. ### Director Of Engineering @ Koala Jan 2021 – Jan 2022 Organized a collaborative initiative to create leveling systems and growth tracks for engineering individual contributors. Architected and built a custom analytics data-pipeline to collect analytics from user-facing applications and store it in Snowflake. Collaborated with business analysts to extract actionable insights from analytics using Tableau. Built and refined a product recommendation machine learning model that increased average order size by 3-5%. Lead the effort to make the company PCI compliant as verified by a qualified security accessor ### Engineering Manager & Founding Engineer @ Koala Jan 2020 – Jan 2021 Helped scale the core ordering platform to reliably handle a 27x increase in order volume during COVID-19. Architected an update to the backend monolith to separate analytics, machine learning, and customization into scalable micro services. Set best practices for observability using Datadog on all platforms. Improved the security of all platforms by protecting PII, building defenses against DDoS attacks, and coordinated with external security audits to identify and verify vulnerabilities. Established an on-call rotation and trained all engineers to triage and document production incidents. ### Senior Software Engineer @ Kickstarter Jan 2018 – Jan 2019 Specialized in search and recommendations. Architected and implemented a new recommendations engine leveraging AWS Sagemaker and using an ensemble of content and collaborative-filtering models that lead to a 20% increase in backings. Established best practices for A/B testing and monitoring of machine learning models using Optimizely and Grafana. Lead a team of eight engineer in the upgrade of a legacy search system into a modern Elasticsearch service. Helped update the entire application to be GDPR compliant. Mentored 4 junior engineers as they developed their front-end and back-end engineering skills through regular pairing sessions and daily code reviews. ### Senior Software Engineer @ Monstarlab Jan 2017 – Jan 2018 | Greater New York City Area Lead a team of 8 that developed an enterprise platform for Tishman Speyer tenants to access building amenities and concierge services all over the world. Architected the MySQL data model, the Django API, the user facing React/Redux web application, and the React/Redux CMS. ### Software Engineer @ Monstarlab Jan 2015 – Jan 2017 | Greater New York City Area Collaborated with designers and mobile developers to build RESTful APIs, front-end applications, Data Warehouses, and Analytics strategies for ShakeShack, AB InBev, CBS, and many others. Helped develop, release, and maintain Mortar.js, a React-powered CMS framework and the largest open-source project at Fuzz. ### Intern @ ShuttleCloud Corp. Jan 2015 – Jan 2015 Reviewed private equity documents such as convertible notes and the conversion to common/preferred stock. Assisted with instituting a system for electronic stock certificates. Researched New York tax nexus requirements for Delaware corporations. ### Legal Intern @ Cardozo Tech Startup Clinic Jan 2014 – Jan 2014 Prepared research memos analyzing the copyright and trademark liabilities of 3D printing. Provided intellectual property, corporate, contract, and employment law services to startup New York City tech companies. Drafted incorporation documents, restricted stock agreements, technology transfer agreements, terms of service, privacy policies, and confidentiality agreements. ### Co-Founder @ Wesk Medical, LLC Jan 2011 – Jan 2014 | College Park, MD Developed the Endotracheal Aerosol Generating (ETAG) catheter designed for use by patients undergoing intubation for the treatment of Acute Respiratory Failure. Specialized in embedded systems programing and circuit design to control medical servos and high voltage electronics. ### Intern for Librassay Division @ MPEG LA, LLC Jan 2013 – Jan 2013 Analyzed and briefed a database of over 40 U.S. and foreign patents. Researched startup biotechnology companies in the field of diagnostic assays and evaluated their intellectual property needs. Designed strategic patent packages for biotech companies based on current and future product lines. ### Research Assistant @ University of Maryland Neuromuscular Bioengineering Laboratory Jan 2010 – Jan 2011 | College Park, MD Quantified changes in axon and myelin geometry due to axial stress. Processed images of rat femoral nerve cross sections using MATLAB. Formulated relationships between physical nerve stress and communication ability. ## Education ### Bachelor of Science (B.S.) in Bioengineering and Biomedical Engineering University of Maryland ### Doctor of Law (J.D.) in Cum Laude, Corporate Law and Intellectual Property Law Cardozo School of Law ## Contact & Social - LinkedIn: https://linkedin.com/in/walterbm - Portfolio: http://www.walterbellermoral.es --- Source: https://flows.cv/walterbellermorales JSON Resume: https://flows.cv/walterbellermorales/resume.json Last updated: 2026-03-31