# Daniel H. > AI Engineering at Health Universe Location: Brooklyn, New York, United States Profile: https://flows.cv/danielh1 I am a software engineer focused on contributing to socially conscious innovation. Having built the first chapters of my career in chemical engineering with oil and gas companies, I discovered the importance of certain values, such as environmental responsibility, social purpose, and employee wellness. These values drove me to reshape my career. Since then, I have built upon my technical and professional background a varied skillset spanning UI/UX development, API design, and operationalizing AI, enabling me to make an impact in a wide array of industries ## Work Experience ### Senior Software Engineer @ Health Universe Jan 2025 – Present | New York, New York, United States ### Senior Full-stack Engineer @ Mandrel Jan 2024 – Jan 2025 | New York, New York, United States Responsible for full-stack feature development and hardening of codebase in preparation for planned scale-up. - Overhauled Next.js-based UI, reducing client-side errors by >80% dramatically lightening on-going bug burden by increasing type-safety and conforming patterns to modern best practices. - Implemented an in-app purchase order creation and versioning system that folds into existing document-linking flows. - Diagnosed and resolved network and database latency issues, drastically improving performance in many key GraphQL resolvers and asynchronous processes. - Incremental improvements to LLM-based document processing and context extraction, as well as subsequent vector similarity-based document-linking. ### Senior Software Engineer @ ClosedLoop Jan 2023 – Jan 2024 | Austin, Texas, United States Code owner of three key services / on-call engineering operations duty - Implemented the backend, UI, and QC framework for a new suite of cutting-edge Solutions products, enabling plug-and-play insight generation for ACOs (accountable care organizations).The platform ingested government-provided data, built standardized features, trained and tested models across several common use-cases, and populated production-ready dashboards with AI-enabled predictions for day-to-day decision making. This new functionality played a role in signing >$1MM in new business. - Resolved complex client issues as 3rd-tier escalation after implementation and customer success teams. - Guided new team members through enforcing patterns, spinning up infrastructure, and resolving start-up tech debt. ### Software Engineer @ ClosedLoop Jan 2022 – Jan 2023 | Austin, Texas, United States Full-stack feature development & internal engineering support - Worked across the Typescript frontend/Scala backend/Python ML layers to extend the core platform, considering security & HIPAA compliance, computational costs, and future extensibility. - Improved customer TTV by shortening the key data onboarding step from weeks to hours with Connectors API - Identified and executed full-stack opportunities for improving platform performance, such as new utility endpoints for common complex UI business logic. Reduced page load times by at least 80% on over a dozen pages. ### Software Engineer (Front-End) @ ClosedLoop Jan 2021 – Jan 2022 | Austin, Texas, United States 6th engineer, fast-paced UI development, contributing to $34M Series B funding round - Executed JS to Typescript conversion of the React codebase, reducing client-side errors by >90%. - Collaborated with product and design to build UI for new features relating to automated machine learning, feature engineering, and medical terminology management. ### Process Engineer @ ExxonMobil Jan 2019 – Jan 2020 | Baytown, Texas, United States • Coordinated multi-site commercial rate tests to maximize site polypropylene output, capturing >$10M/yr • Provided site-wide utilities monitoring & optimization and operations team support • Designed engineering tools and dashboards to increase team efficiency using new technologies ### Process Controls Engineering Intern @ ExxonMobil Jan 2018 – Jan 2018 | Baytown, Texas Developed process control applications to automate industrial furnace de-cokes, improved conversion control reliability through process simulation, and implemented environmental calculations to inform capital project selection, etc. ### Global Technologies - Operations Technical Engineering Co-op @ ExxonMobil Jan 2017 – Jan 2017 | Baytown, TX Project coordination of equipment installations, assessment of operational and design risks, as well as general operational optimization and technical maintenance. ### Process Development Engineering Intern @ Phillips 66 Jan 2017 – Jan 2017 | Sweeny, Texas Investigated process issues and developed process specifications for enhancing safety and increasing throughput in the refinery complex. ### Undergraduate Research Assistant @ The University of Texas at Austin Jan 2016 – Jan 2017 | Austin, Texas, United States Fine-tuned TiO2 nanocrystal synthesis, utilizing analytical techniques, such as X-ray diffraction and scanning electron microscope (SEM), to characterize thin-film nano-crystalline products. ### Process Engineering Co-op @ Eurecat US, Inc. Jan 2016 – Jan 2016 | Pasadena, TX Managed regular operations of catalyst regeneration units while developing operations and quality plans for new catalyst specifications and process conditions. ### Environmental Scientist Intern @ Entech Engineering Inc Jan 2015 – Jan 2015 | League City, TX Conducted environmental engineering studies at Houston area chemical plants. ## Education ### Bachelor of Science (B.S.) in Chemical Engineering The University of Texas at Austin Jan 2014 – Jan 2018 ### Software Engineering Hack Reactor Jan 2020 – Jan 2021 ### Semester Exchange in Chemical Engineering National University of Singapore Jan 2017 – Jan 2017 ### Clear Lake High School Jan 2010 – Jan 2014 ## Contact & Social - LinkedIn: https://linkedin.com/in/danielhe96 - GitHub: https://github.com/daniel-he-dev --- Source: https://flows.cv/danielh1 JSON Resume: https://flows.cv/danielh1/resume.json Last updated: 2026-04-01