SYSTEM_READY // 0->1 APPLIED AI & SYSTEMS
โšก 15+ YRS PRODUCTION SYSTEMS

Huajun Chen

AI Systems Engineer / Applied AI / Full-Stack & GIS

Pragmatic systems builder with 15+ years of production experience. Turning complex domain workflows into reliable apps โ€” from migrating critical enterprise databases with zero downtime to shipping AI-driven mobile products backed by automated evaluation gates.

โšก Systems & Engineering Cloud

Executive Summary

Software and applied AI engineer with 15+ years building and deploying mission-critical systems across government, enterprise, and startup environments. Experienced embedding directly with field technicians and domain experts, translating unstructured real-world problems into robust, working software. Most recently founded, built, and shipped ACLogics end-to-end โ€” architecting LLM diagnostic engines, regression evaluation test suites, mobile applications on iOS & Android, and observed-telemetry feedback loops.

Production Experience

City of Garland
2025 โ€“ Present
GIS Lead | Practical AI Adoption & Rapid Delivery
Practical AI Workflow Automation ArcGIS Enterprise Legacy Reverse-Engineering
  • Lead practical AI adoption across the GIS team, identifying high-leverage workflows and empowering non-programmers to build their own automations (including an AI-assisted macro that eliminated recurring monthly manual data entry).
  • Extended automation upstream to the data-producing department, removing redundant forwarding and handoffs while slashing turnaround time.
  • Developed a proof-of-concept AI agent to audit and validate municipal spatial address data, automating discrepancy detection and anomaly resolution for an address clean-up project.
  • Delivered a production restaurant inspection application in one week: used AI to navigate a 200+ table undocumented legacy SQL database, accelerating the complete delivery cycle from schema discovery and data validation to automated ArcGIS map-service deployment and an HTML frontend.
Cognizant โ€“ FM Global
2021 โ€“ 2025
Senior Developer | Full-Stack, Data & Geospatial Engineering
React / TypeScript Python Azure Cloud SAM-GEO Foundation
  • Embedded with client engineering as a domain specialist, translating complex commercial insurance requirements into production systems across React, TypeScript, Python, Azure, and ArcGIS Enterprise.
  • Led development of a React/TypeScript geospatial curation platform for commercial property insurance, integrating ESRI JavaScript API, Google Street View, Vexcel oblique imagery, and Turf.js to help risk analysts verify property boundaries and evaluate exposure.
  • Engineered a 4-stage Python property-valuation actuarial pipeline spanning raw data ingestion/cleansing, multi-source API enrichment, spatial calculation, and automated reporting; deployed to Azure with 90%+ test coverage.
  • Architected an automated ESRI deployment synchronization engine using Python to digest exported XML and EPK configuration packages, automating geodatabase schemas, feature services, web maps, and application lifecycle updates across environments.
  • Prototyped AI geospatial object-detection workflows using SAM-GEO foundation models to evaluate automating roof and structural boundary extraction from high-resolution imagery.
  • Enforced production software standards and governance: implemented Docker containerized development environments, Azure DevOps CI/CD pipelines, and resolved security vulnerabilities identified via Veracode SAST scanners.
City of Garland
2013 โ€“ 2021
GIS DBA & Developer
Enterprise GIS Architecture Python Emergency Management
  • Architected, maintained, and managed enterprise GIS infrastructure, including ArcGIS Server, Portal, ArcGIS Hub, and GeoEvent Server across Oracle and Microsoft SQL Server databases.
  • Planned and executed a full enterprise GIS database migration from Oracle to Microsoft SQL Server with zero service downtime, administering database schemas, user roles, and security policies.
  • Built a citizen-facing single-page web application querying city services via ArcGIS REST APIs and developed a real-time AVL (Automatic Vehicle Location) web application displaying live municipal vehicle tracking and historical query/export tools.
  • Engineered a Python data integration pipeline synchronizing municipal traffic databases with Waze real-time feeds to automate road closure updates and incident response.
  • Automated spatial joining and analysis of municipal crime incidents with neighborhood geographic boundaries, generating scheduled automated intelligence reports.
  • Provided mission-critical technical operations and emergency GIS support for Emergency Management during major crises, including the 2015 Christmas Tornadoes and the 2020 pandemic response.
City of Dallas
2009 โ€“ 2013
GIS Analyst
Python VB.NET
  • Designed and deployed a custom VB.NET inspection workload scheduler for field crews, streamlining dispatching workflows and enabling managers to optimize team supervision.
  • Developed a specialized .NET toolbox for the municipal Water Quality team to record environmental laboratory sample data, validate test parameters, and automate compliance reporting.
  • Built automated Python scripts to trigger and dispatch formal Notice of Violation emails directly from spatial violation records.
  • Authored custom automation tools using ArcObjects, Python, and VB.NET, significantly increasing daily operational data processing speed and workflow stability across departments.
  • Delivered technical support, documentation, and GIS training to operational staff with diverse technical backgrounds.
Earlier Research Experience 2008 โ€“ 2009
Research Assistant & GIS Intern
LiDAR 3D Extraction 9-1-1 Emergency Dispatch Data
  • North Central Texas Council of Governments (NCTCOG) (Mar 2009 โ€“ Jul 2009): Created 9-1-1 ArcSDE spatial address feature classes and datasets from scratch across two regional counties, synthesizing satellite imagery, planning department drafts, and on-site field verifications for emergency dispatch accuracy.
  • The University of Texas at Dallas (Jun 2008 โ€“ Dec 2008): Developed 3D feature extraction and classification tools in ArcGIS Desktop using ArcObjects to characterize and isolate buildings, tree canopies, and power line corridors from aerial LiDAR point cloud data.

Credentials & Education

Certifications

AWS Certified Cloud Practitioner
Amazon Web Services ยท 2022 โ€“ 2025
Microsoft Certified: Power BI Data Analyst Associate
Microsoft Certified ยท 2024 โ€“ 2025

Education

M.S. in Geographic Information Sciences
University of Texas at Dallas ยท 2007 โ€“ 2009
Bachelor of Urban and Rural Planning (B.S.)
Peking University, Beijing ยท 2002 โ€“ 2006