- Develop new features and improve/maintain existing features on Foundry for Public Safety Power Shutoff project data pipeline using Spark

• Develop and improve Public Safety Power Shutoff planning web application for Wild Fire program in California using Python, Spark, PostgreSQL, AWS Lambda, Glue, Step Function, SQS, S3.• Maintain and improve data sync process between several large-scale systems including spatial data.• Work closely with other teams. Integrate with other applications, including meteorology, PalantirFoundry and External Portal.

• Lead multiple web application development projects with MEAN Stack. Was involved in the full software development life cycle. • Planned, installed and configured the latest ArcGIS Enterprise. Upgraded and migrated all the contents from previous servers.

• Develop a comprehensive data management application for Northern California Water Association using JavaScript, JQuery, Flask and PostgreSQL. Administrators can use the application to manage membership data, print invoices and track payment information. Growers have the ability to log in and manage their contact information, update parcel and field data, finish yearly farm evaluation and nmp reporting.• Develop an Almond Yield Forecasting Tool which can be used to predict almond yield in California for the next 4 years.• Create GIS web applications for various clients using ArcGIS Web App Builder Developer to visualize GIS data and provide functionalities for users to analyze data and interact with the map.• Manage company server, ArcGIS Enterprise, ArcGIS Server, ArcGIS Portal and ArcGIS Online.• Set up ArcGIS Collector for ground truthing and clients.• Maintain company SQL and PostgreSQL database.• Write python scripts to automate process when applicable.• Develop and refine existing applications, geospatial analysis protocols, and spatial and statistical modeling applications to help solve complex environmental and agricultural resource problems.

• Developed various customized web applications with ArcGIS JavaScript API and ArcGIS Online. • Provided GIS solutions and ArcGIS Online support to clients, mainly state and local governments.• Created an administrator dashboard with ASP .NET MVC using C#.• Wrote Python scripts to implement the automation process for better performance.• Updated forestry applications written in VB.NET to improve their work efficiency.• Completed data collection, manipulation and analysis using SQL, Oracle, FGDB with ArcMap.• Worked in areas including environment, transportation, forestry, fiber-optic, zoning, emergency management, fire districts, and grants and loans.

• Assist the professor with lecture for the class Introduction to Programming in Visual Basic.NET.• Teach lab sessions and give guidance on class assignments and projects to help students better understand the class material.

• Developed a web application using Toxic Release Inventory in Google Fusion Table with Google Maps JavaScript API to visualize and analyze the TRI data.• Collected, manipulated, analyzed and visualized geospatial data based on the clients’ needs.• Tested a school redistrict web application and worked closely with developers on Github.• Wrote technical documentations for end-users.

• Created automation scripts in Python and implemented them with batch files in FinalBuilder to improve testing efficiency. • Maintained testing procedures for ArcGIS Desktop and ArcGIS Runtime SDKs.• Identified and reported issues to development and technical support teams to improve system development life cycle and product release. • Developed applications with ArcGIS Runtime SDKs.

• Developed an application with Python that extracts data from disparate databases to update and generate maps automatically in ArcMap, providing streamlined, near real-time mapping solutions for decision-makers at NFTA.• Collected and analyzed 15-minute breakdown subway ridership data to suggest causal factors to improve service provision along NFTA routes.• Generated maps for NFTA-distributed route schedules in ArcMap.

Developed an Environmental Exposure Assessment Tool using Google Maps Javascript API (Master’s Project)• Developed a web-based tool to show Places of Interest (POIs) along a route and Amenities Along the Route Score (AARS).• Provided a method to assess the amenities accessibility of activity spaces instead of residential area in epidemiology studies.• Utilized time instead of distance as the determination of AARS as temporal dimension for spatial analysis of accessibility.AMOEBA Toolbox is an add-in for ArcGIS toolbox written in Python. It provides a method for construction of spatial weights matrices and identification of clusters for defining relationships between spatial units.• Made changes to Python script to enable generating .SWM file, and reading existing .SWM, .GAL or .GWT file types for the spatial weights matrix input field of the AMOEBA Toolbox for cluster detection.• Optimized the aesthetics and stability of the toolbox for interoperability.Exploring Time as a Determinant of Individuals' Accessibility to Amenities Within Activity Spaces: A Mobile Activity Space Accessibility Assessment Tool Based on Google Maps API