# Zengyongxi Deng > Software Engineer @Elutions | ex-Lead Backend Engineer @curaJoy | CMU MITS 23' Location: San Jose, California, United States Profile: https://flows.cv/zengyongxi 🌍 My Personal Website: https://deng-dawn.github.io/Deng-homepage/ 🏫 CMU Master Student 23' ## Work Experience ### Software Engineer @ Elutions Jan 2025 – Present | Delafield, Wisconsin, United States · Built Axis, a B2B Enterprise Data Lake through Next.js and 7 ASP.NET microservices within Elutions SCADA ecosystem, orchestrating the ingestion and processing of TB-scale industrial telemetry files from EMEA factory sites. · Architected a multi-tenant IAM framework integrating Keycloak and NextAuth.js, implementing a hybrid RBAC/ABAC model with 30+ granular permissions to secure cross-service data access. · Developed a 3D Digital Twin dashboard using Three.js, mapping real-time SCADA tag data to interactive mechanical models for remote monitoring and anomaly visualization. · Optimized real-time data sync via WebSockets and TanStack Query, ensuring low latency updates for concurrent enterprise users under high-load industrial environments. ### Lead Backend Engineer @ curaJOY Jan 2024 – Jan 2025 · Led a team of 5 engineers to develop backend microservices of behavioral health platform, curaJoy, enforcing Jira-driven Agile workflows and code review standards to ensure on-time delivery, monitoring service through AWS Cloudwatch logging. · Collaborated with A2C consulting on a RAG-based Chatbot feature design, integrated LLM service with Data Engineers into the core backend infrastructure and business logic through Poetry, Docker, Github Actions. ### Software Engineer @ curaJOY Jan 2024 – Jan 2025 ◦ Designed and developed a back-end gamification microservice using Node.js, Express and Typescript, implementing over 10 API endpoints. Optimized asynchronous job handling with a BullMQ-driven message queue, enhancing operations such as gems creation, updates, and in-app notifications, reducing latency significantly. ◦ Engineered scoring and prioritization features for incomplete assessments in TypeScript for curaJoy Beta 1.0 patch, enhancing user interaction with AI coaches in a distributed, serverless cloud environment. ◦ Developed real-time input validation for Airtable and implemented synchronization with a normalized AWS RDS PostgreSQL database via Airtable Web API. Utilized Liquibase for robust database schema migrations and implemented a cron job to automate synchronization processes, ensuring data consistency and integrity. ### Software Engineer @ TRACT Jan 2023 – Jan 2023 | San Francisco, California, United States • AI Chatbot: Devised Sherlock Report AI Chatbot using Flask and Python for Sherlock platform, built MongoDB toolkit enabling LangChain-supported LLM for conversational memory, integrated LlamaIndex query engine responding dynamic user requests, decreased response time by 40% from MongoDB. • SEO: Conducted a multi-threaded automated AI Blog generator for Search Engine Optimization using OpenAI APIs. Generated 100+ HTML formatted articles through asynio and aiohttp with fine-grained keywords, monitored the blog generating process with tqdm. ### Software Engineer @ Global Resource & Technology Development Inc. Jan 2023 – Jan 2023 | New York, United States • Engineered the backend of a personalized daily practice system for Mathzoos, an online education website, utilizing the Flask framework. Automatically assigns daily tasks to users based on a sliding window evaluation of their recent performance across various knowledge points. • Constructed and integrated functionality to accept and respond to user interactions such as clicking, bookmarking questions, and requesting hints for questions. Leveraged PostgreSQL to maintain and update corresponding question lists, daily problem-solving logs, and performance evaluation records. • Performed rigorous testing using Postman to emulate frontend requests, successfully merging the developed code into the pre-production environment. This innovative project is currently in the phase of AB testing to optimize user experience and educational outcomes. ### Quantitative Developer @ Shining Star Investment Mgmt. Co., Ltd. Jan 2020 – Jan 2021 | Beijing, China • Designed & implemented an automated data extraction & processing pipeline in Python using shell scripts for 3045 stocks in Chinese A shares market, utilized HDF5 for persistent cross-platform data storage, reduced data processing time by 75%. • Migrated & optimized original implementation of RiceQuant-based data extraction, avoided repetitious extractions by setting time data in a separate table that served as surrogate keys, reduced run times by 80%. • Analyzed effectiveness of 1000+ factors for stocks selection, cleansed & transformed 10+ volume-price factors using Alphalens, generated factor group statistics, IC, return rate and turnover rate analysis charts with Matplotlib & presented them to senior management with data-driven insights on 3 stock selections. ### IT Consulting @ KPMG China Jan 2020 – Jan 2020 | Shanghai City, China • Facilitated Agile digital transformation for a multinational bank, identified key business metrics & project status, designed & developed 8+ relevant Qlik sense-based reports, reduced report development effort by 80+%. • Summarized processes of the newly launched report access management system as per environment, role & permissions, illustrated access management processes with 10+ Swimlane charts. • Designed a work-around process with a Pre-Prod environment in the Datamart & ensured adherence to data confidentiality, supported the migration of data ETL from Prod to Pre-Prod maintaining environment consistency. • Analyzed production models, cost accounting allocation methods & real-time cost estimations from 5+ case studies of successful S/4 HANA implementations with KPMG SAP project delivery service, defined the processes for SAP project requirements for a high-end Italian furniture brand. ### Elite Program @ KPMG China Jan 2019 – Jan 2020 | Beijing • Participated in the 2019 annual report of one real estate consulting company, focused on key control points and assisted in RIA and RAAR, accomplished the test of effectiveness independently.
 • Supported preparing the revenue working paper, explored significant changes on the book code of its accounting system, via Pivot table integrated data sampled by KSP, dug up missing data through Vlookup function mapped from previous statements. ### EY Ambassador @ EY Jan 2019 – Jan 2020 · Propagandize EY Go Beyond Competition, e.g. EY Go Beyond Competition & EY Corporate Finance Women of the Year initiatives. · Operate society official account. ### Research Assistant @ China University of Political Science and Law Jan 2018 – Jan 2018 | Changping District, Beijing, China • Helped Prof.Xiong Jinwu with the translation of Market Design by Martin Bichler, dedicated to the topic of School Choice. • Mastered matching theory and deferred acceptance algorithm and translated 87-page paper alone 16 days ahead of the deadline. ## Education ### Master’s Degree in Information Technology and Strategy Carnegie Mellon University ### Bachelor's degree in Economics China University of Political Science and Law ### Exchange student in Economics UCLA ### Exchange student in Economics Nankai University ## Contact & Social - LinkedIn: https://linkedin.com/in/zengyongxi-deng - Portfolio: https://deng-dawn.github.io/Deng-homepage/index.html --- Source: https://flows.cv/zengyongxi JSON Resume: https://flows.cv/zengyongxi/resume.json Last updated: 2026-04-10