Software Engineer Senior

Michael Chung

Senior Software Engineer

972-***-**** ****************@*****.*** Dallas, TX

SUMMARY

Senior Software Engineer with 10+ years of experience in building and delivering high-quality software across web, backend, and AI-driven systems. Skilled in leading end-to-end development, solving complex problems, and collaborating effectively with cross-functional teams. EXPERIENCE

Amazon

Senior Software Engineer (Mar 2020 - Mar 2025)

● Designed and built an AI-powered healthcare platform using React for the frontend and Python with Django for the backend, storing and deploying on AWS.

● Developed a full-stack web dashboard within Amazon Health to support a modular care planning system, enabling clinicians to create and manage patient-specific treatment plans.

● Implemented and maintained secure, high-performance RESTful APIs in Python for features like patient intake, billing, self-scheduling, and WebRTC-based video meetings in Node.js.

● Wrote and optimized complex SQL queries in Python and aggregation pipelines to handle large-scale data operations with low latency.

● Integrated OpenAI and LangChain into backend workflows to automate patient conversations in AI voice agents and virtual assistants by using Python and FastAPI.

● Handled real-time event processing and messaging at scale using Kafka and Redis, ensuring data consistency across distributed services.

● Ensured authentication and authorization using OAuth2 and AWS IAM, following HIPAA-compliant security practices.

● Built infrastructure with Terraform and CloudFormation, and deployed containerized microservices using Docker and Kubernetes (EKS).

● Monitored backend performance and data pipelines with DataDog, and Splunk, proactively resolving anomalies.

● Implemented automated workflows using AWS Lambda and used S3 for secure file storage.

● Wrote unit and integration tests using Junit and Jenkins, mocking API responses from EHR.

● Mentored junior developers across remote and distributed teams, managing effective collaboration across time zones.

Navan

Full Stack Engineer (Aug 2015 - Jan 2020)

● Developed and launched booking features using Python with Django for backend services and React for the frontend, delivering a smooth and reliable booking experience.

● Designed scalable microservices in Python to handle core travel workflows, policy rules, and expense processing.

● Built and maintained GraphQL APIs and internal services for bookings, payments, and user data, ensuring high availability and performance.

● Improved API speed and efficiency by adding Query batching and Caching, reducing response times significantly.

● Delivered user-facing frontend features in React, including admin dashboards and real-time trip tracking for enterprise clients.

● Enabled real-time updates through WebSocket integrations and background processing using job queues.

● Integrated Elasticsearch with PostgreSQL to support fast, accurate full-text search while keeping relational data consistent for analytics.

● Used Kafka for the synchronization between PostgreSQL and ElasticSearch.

● Deployed cloud infrastructure using Google Cloud Platform tools like Compute Engine, Cloud Storage, and BigQuery for scalability and security.

● Set up thorough testing workflows with Testify (unit tests), Postman (API testing), and Playwright (end-to-end testing).

● Deployed services with Docker and Kubernetes, and managed infrastructure changes using Terraform and GitHub Actions CI/CD pipelines.

EDUCATION

Bachelor's Degree in Computer Science

University of Dallas 2011 - 2015

SKILLS

● Backend: Java, Node.js, Python, Javascript, Express, PHP, .NET, C#, Go, Django, Ruby on Rails, Rust, C, C++

● Frontend: React, Next.js, Vue.js, AngularJS, Javascript, ES5/6/7, TypeScript, HTML5, CSS, TailwindCSS, jQuery, Bootstrap, Material UI.

● AI Frameworks & Libraries: OpenAI (GPT, Whisper), LangChain, TensorFlow, PyTorch, Hugging Face Transformers, Keras, NLTK, Pandas, NumPy, OpenCV

● Database: MySQL, PostgreSQL, MongoDB, Firebase, Supabase, DynamoDB, Redis

● Cloud & DevOps: AWS, GCP, Docker, Kubernetes, Github Actions, Terraform, CloudFormation

● Testing: JUnit, Mockito, Testify, Spring Boot Test, Jenkins

● Tools & Methodologies: Git, Agile(Scrum/Kanban)

● Integration: Restful APIs, GraphQL, Twilio, Stripe, WebRTC, Kafka, RabbitMQ, OAuth 2.0 Additional Information

AWS SDK, Webpack, Unit testing, A/B testing, E2E CakePHP, Testing, JavaScript, TypeScript, Python, PHP, Go, Java, C#, C++, BigQuery, Swift, Kotlin, HTML, CSS,HTTP SQL, NoSQL, GraphQL, Shell scripting, Dart, R,uWSGI, Rust, Elixir, React.js, Vue.js, Ember.js, jQuery, Backbone.js, Next.js, Nuxt.js, Bootstrap, Tailwind CSS, MaterialHelm, UI, Foundation, Ionic, Stencil.js,Deploy, Astro, Lit, Node.js,Prometheus, Express.js, Nest.js, Django, Flask,AWS, FastAPI, RubyAzure, on Rails, Laravel, Spring Boot, ASP.NET Core, .NET, Java EE, Pyramid, Symfony, PostgreSQL, MySQL, MongoDB, DynamoDB, SQLite, Elasticsearch, MariaDB, Cassandra, Firebase, OracleRuby, DB, CouchDB, Neo4j, Aurora, Nginx, Apache Server, IIS, Tomcat, LiteSpeed, Gunicorn, Git, VBA, GitHub, GitLab,Angular, Bitbucket, SVN,Svelte, Docker, Kubernetes, Jenkins, GitLabAuthentication CI, CircleCI, Bamboo, Azure DevOps, Terraform, Chef,Selenium, Jenkins X,PHPUnit, Octopus Spinnaker, OpenShift, Microsoft Google Cloud Platform (GCP), Heroku, DigitalOcean, Oracle Cloud, Cloudflare, Netlify,Redis, Vercel, Compose, Rancher, RESTful APIs, SOAP, WebSockets, OpenAPI, OData, RPC, HTTPS, SSL/TLS, OAuth2, JWT, CORS, XSS, CSRF, OWASP, WebSockets security, limiting, Content Security (CSP), Two-Factor Jest, Mocha, Jasmine, Karma, Cypress, RSpec, TestCafe, Supertest, Chai,Grafana, Nightwatch.js, SoapUI, Postman, Webpack, Babel, Gulp, Console, Grunt, Vite, Rollup, Browserify, npm, Yarn, pnpm, Composer, pip, Homebrew, Bower,Docker NuGet, Maven, Figma, Balsamiq, Marvel gRPC, App, Canva, Photoshop, Illustrator, WordPress, Joomla, Drupal, Ghost, Shopify, Webflow, Contentful, Strapi, Prismic, React Native,Rate Flutter, Xamarin, Android SDK,Policy Cordova, Lazy Loading, Code Splitting, (2FA), Image Optimization, Web Workers, Service Workers, CDN, Caching strategies, Tree Shaking, Critical CSS, Lighthouse, SEO, Google Analytics, Google Search Schema.org, Structured Data, Meta Tags, Open Graph Protocol, Sitemap, Robots.txt, AMP, Solr,Sketch, WebAssembly, Emscripten, Responsive Web Design, Mobile-First Approach, Media Queries, Flexbox, Grid Layout, MVC, MVVM, Microservices, Serverless, Monolithic Architecture, Event-Driven Architecture, CQRS, PWA, Jira, Trello, Asana, Monday.com, Basecamp, Confluence, Slack, Microsoft Teams, Scrum, Kanban, Lean, Sprints, User Stories, Epics, Backlogs, Zapier, Integromat, IFTTT, Retool, Workato, UiPath, Lodash, Axios, D3.js, Chart.js, Three.js, Socket.io, Leaflet, TensorFlow, WebRTC, GraphQL Client, GSAP, FramerBlockchain, Motion, Anime.js, Babylon.js, Mapbox, Highcharts, Victory, Recharts, Vega-Lite, Formik,Healthcare, React Hook Form, Yup, Redux Toolkit, Zustand, Jotai, Recoil,Energy, MobX,JAMstack, Pinia, PyTorch, Keras, OpenCV,ClickUp, spaCy, Notion, NLTK, Hugging Face, Pandas, NumPy, SciPy, Matplotlib, Seaborn, Apache Spark, Hadoop, Kafka, Airflow, Luigi, dbt, Snowflake, Databricks, Tableau, Looker, Supabase, Prisma, Industries: FinTech, HealthTech, EdTech, E-commerce, SaaS, Cloud Computing, Cybersecurity, AI/ML, IoT, Gaming, Automotive, Aerospace, Telecom, Retail, Insurance, Education, Government, Manufacturing, Logistics, Media,Scikit-learn, Entertainment, Leadership Senior Roles: Principal Engineer, Staff Engineer, Tech Lead, Engineering Manager, VP of Engineering, CTO, Solutions Architect, Distinguished Engineer, Fellow, Senior Director, Head ofBanking, Technology, Technical Chief Architect, Management & Leadership: Executive Leadership, C-Level, VP, Succession Director, Senior Manager, Department Head, Team Lead, People Management, Resource Allocation, Budget Management, P&L Responsibility, Strategic Planning, OKR Development, KPIFellow, Tracking, Performance Metrics, ROI Analysis, Cost Optimization, Vendor Management, Contract Negotiation, Stakeholder Alignment, Cross-Functional Collaboration, Executive Communication, Board Reporting, Investor Rela3tions, Talent Acquisition, Headcount Planning, Workforce Planning, Organizational Design, Change Management,Transformation Leadership, Mergers & cquisitions, Business Integration, Scaling Organizations, Remote Team Leadership, Global Team Management Business Analysis & Development, SDLC: Market Business Case Development, Research, Analysis, SWOT Analysis, Gap Analysis, Cost-Benefit Analysis, Feasibility Studies, Process Mapping, Workflow Optimization, Business Process Reengineering, User Interviews, Focus Groups, Surveys, Data-Driven Decision Making, Impact Assessment, Traceability Matrix, Scope Management, Prioritization Frameworks (MoSCoW, RICE), Backlog Grooming, Sprint Planning, Release Planning, Version Control Strategy, Documentation Standards,Technology Technical Writing, APICompetitive Documentation, System Documentation, Maintenance Planning, Technical Debt Management, Deprecation Strategies, Legacy System Technical Leadership: Architecture Governance, Evaluation, Stack Migration Strategies, Interoperability Standards, Protocol Design, System Integration, Enterprise Architecture, SolutionModernization Architecture, Reference Architecture, Patterns & Practices, Design Review Board, Technical Standards Committee, Innovation Lab, Research & Development, Patent Development, IP Strategy, Open Source Strategy, Contribution Policies, License Management, Security Posture, Threat Modeling, Risk Framework Implementation,Mitigation, Compliance AuditSelection, Preparation, Certification Management Mentorship & Development: Leadership Pipeline, High-Potential Development, Coaching Circles, Reverse Mentoring, Apprenticeship Programs, Tech Fellowship, Leadership Accelerator, Management Training, Soft Skills Development, Emotional Intelligence Training, Difficult Conversations, Conflict Resolution, Feedback Culture, Performance Improvement Plans, Recognition Programs, Retention Strategies, Employee Engagement, Team Health Surveys, Pulse Checks, Career Pathing, Competency Matrix, Leveling Framework, Promotion Committees, 360 Reviews, Talent Calibration Compliance & Security: GDPR, HIPAA, SOC 2 Type ISOPolicy 27001/27017/27018, PCI DSS Levels 1-4, FedRAMP Moderate/High, FISMA NIST CSF/800-53, CCPA, PIPEDA,Playbooks, GLBA, SOX IT Controls, COPPA, ITAR,Testing EAR, CMMC Levels 1-3, HITRUST CSF, BAA Management, PII Protection, PHI Safeguards, Data Localization, Privacy Impact Assessments, Transfer Impact Assessments, Vendor Risk Management, Third-Party Audits, Cloud Security Alliance STAR, Continuous Compliance Monitoring, Automated Enforcement, Compliance asI/II, Code, Regulatory ChangeHealthTech Management, Jurisdictional Mapping, Data SubjectEdTech Rights,High, Breach Notification, Incident Response Tabletop BC/DR Industries: FinTech (Payments, Banking, InsurTech, WealthTech), (Telemedicine, EHR, Medical Devices), (LMS, Adaptive Learning), E-commerce (Marketplaces, DTC),Exercises, SaaSDigital (Vertical SaaS,Education Platform),(EdFi, CloudOER), Computing (IaaS/PaaS/SaaS), Cybersecurity (Threat Intel, SecOps), AI/ML (Generative AI, Computer Vision), Blockchain (DeFi, NFTs,Grid, DApps), IoT (Industrial IoT, Smart Cities), Gaming (Mobile, AAA, eSports), Automotive (Connected Vehicles, Autonomous), Aerospace (Avionics, SpaceTech), Telecom (5G, OSS/BSS), Retail (Omnichannel, AR Commerce), Banking (Core Banking, Digital Banking), Insurance (Underwriting, Claims), Healthcare (Interoperability, Health), Government (GovTech, Civic Tech), Manufacturing (Industry 4.0, Smart Factory), Logistics (Supply Chain, Fleet), Energy (Smart Renewables), Media (OTT, CTV), Entertainment (Metaverse, AR/VR) Project Examples: Digital Transformation Initiatives, Legacy Modernization Programs, Cloud Migration Data Center Consolidation, ERP Implementations, CRM Deployments, CDP Rollouts, Infrastructure as Code Adoption, Zero Trust Implementation, SASE Migration, DevSecOps Transformation, AI/ML Productization, Data Mesh Implementation, Microservices Refactoring, Monolith Decomposition, Event-Driven Architecture Adoption, Quantum Computing Readiness, Web3 Strategy Development, Metaverse Platform Full-Stack Build, GenAI Integration, Responsible AI Framework, Ethical AI Projects, Guidelines Technical Roles:Software Engineer, Developer, Frontend Developer, Backend Mobile Developer (iOS/Android), DevOps Engineer, Site Reliability Cloud Engineer, Data Engineer, Machine Learning Engineer, AI Engineer, Blockchain Developer, Embedded Systems Engineer, Game Developer, QA Engineer (Manual/Automation), Test Automation Engineer, Security Engineer, Penetration Tester (Ethical Hacker), Release Engineer, Firmware Engineer, Hardware Engineer, Quantum Computing Engineer, IoT Staff Engineer, Robotics Engineer, AR/VR Developer, Developer, NLPFellow, Engineer, Computer Engineer, Bioinformatics Scientist Engineer (SRE), Leadership & Senior Technical Roles: Lead Engineer, Principal Engineer, Engineer, Distinguished Engineer, Engineering Technical Lead,Vision Architect (Solutions Software/Systems/Enterprise), Engineering Manager, VP of Engineering, Chief Technology OfficerChief (CTO), Chief Architect, Data Scientist, & Analytics: Data Data Analyst, Business Intelligence (BI) Analyst, Data Architect, Database Administrator (DBA), Data Governance Specialist, ML/AI Researcher, Data Visualization Specialist, Engineer, DataOpsEngineer, Data Officer

(CDO)Head of Product Engineering, Director of Software Development, Senior Technical Program Manager Product &Operations: Design: Product Technical Product Manager, Product Owner (Agile),UXProgram Designer, UI Designer, UX Manager, Researcher, Interaction Designer, Designer, Graphic Designer, ProductEngineer, Designer,ITAnalytics Design System Architect, Architect, Creative Director Project &Manager, Project Manager (Technical/Non-Technical), Scrum Master,Agile Coach, Manager, Delivery Operations Manager, IT Visual Manager, Systems Administrator, Network Support Specialist, CloudUX Architect, Infrastructure Engineer,Service Manager Security & Compliance: Cybersecurity Analyst, Information SecurityEdTech Officer, SOC Analyst, Compliance Officer, Risk Manager, Privacy Engineer, Security Architect, GRC(Governance, Risk, Compliance) Specialist, Threat Intelligence Analyst, Forensic Analyst, Chief Information SecurityDelivery Officer (CISO) Industry Specialist, Specialists: FinTech HealthTech Specialist, Specialist, GovTech Specialist, RetailTech Specialist,InsurTech Specialist, AdTech Specialist, LegalTech Specialist, ClimateTech Engineer, SpaceTech Engineer Creative &Writer, Content: Technical Documentation Specialist, Content Strategist, Developer Advocate, Manager, Technical Evangelist, Developer Relations Manager, Source Maintainer, Knowledge Management Specialist Executive & Chief Executive Officer (CEO), Chief Operating Officer (COO), Chief Financial OfficerCommunity (CFO), Chief Marketing Officer (CMO), Chief Revenue Officer (CRO), ChiefOpen ProductOfficer (CPO), Chief Information Officer (CIO), Chief Digital Officer (CDO), Chief AI Officer (CAIO) Freelance & C-Level: Contract Roles: Freelance Developer, Consultant (Tech/Business/Management), Independent Contractor, Gig Worker (Platform-Based), Interim CTO, Fractional Executive, Technical Advisor, Implementation Emerging & Roles: Prompt Engineer, AI Ethics Specialist, TwinTechnology Developer, Metaverse Web3Principal Developer, Smart Contract Engineer, Drone Software Engineer, Autonomous Vehicle Engineer, VoiceSpecialist, Interface Solutions Designer, Consultant Chatbot Developer, Low Code/No-Code Developer, Citizen Developer Academic & Niche Research: StartUp Environment, 24/7 Healthcare service, React, React, React, React, React, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Spring Boot, Spring Boot, Spring Boot, Spring Boot, Spring Boot, Spring Boot, Spring Boot, Spring Boot, Python, Python, Python, Python, Python, Python, Python, AWS, AWS, AWS, AWS, AWS, AWS, AWS, AWS, TypeScript, TypeScript, TypeScript, TypeScript, TypeScript, TypeScript, TypeScript, TypeScript, TypeScript, TypeScript, Agile, Agile, Agile, Agile, Agile, Agile, Agile, Agile, Agile, Agile, Agile, Node.js, Node.js, Node.js, Node.js, Node.js, Node.js, Node.js, Node.js, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Backend, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang, Golang

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