Geospatial Developer

Vantor•Reston, VA

3d•Onsite

About The Position

Vantor is seeking a Geospatial Developer to design, build, and support geospatial applications, REST integrations, and data pipelines across its enterprise GIS environment. The role translates business and functional requirements into scalable web applications, automated geoprocessing services, and advanced data collection tools. It involves technical GIS development with Esri enterprise technologies, including ArcGIS Enterprise/Portal, ArcGIS Pro, Experience Builder Developer Edition, and Survey123, as well as exposing geospatial REST services to external enterprise systems, search engines, and ArcGIS Earth clients. The developer will create custom Experience Builder widgets and extensions, publish and optimize ArcGIS Enterprise services, automate geospatial data preparation, and build back-end data layers and ETL routines for operational dashboards. The role also covers advanced Survey123 form and workflow design, secure content migration among ArcGIS Enterprise Portals, and configuring collaborative ArcGIS Earth workflows. The developer works with stakeholders, analysts, project managers, search platform teams, and technical leads to turn workflows into technical specifications. The role requires U.S. citizenship, an active TS/SCI U.S. Government security clearance, and a current CI polygraph; candidates must also be willing and able to obtain a CI polygraph. Employment in cleared roles is contingent on verification of clearance status. The position is full-time and onsite in Reston, Virginia. The base pay range for the Washington, DC metropolitan area is $116,000–$154,000–$169,400 annually, with compensation based on factors including experience, qualifications, skills, location, and market conditions. Other locations may have different ranges.

Requirements

U.S. citizenship.
Active TS/SCI U.S. Government security clearance and a current CI polygraph; must be willing and able to obtain a CI polygraph.
10 years of experience in Computer Science, GIS, Geography, or a related technical field.
At least 2 years of experience working with the ArcGIS platform, including ArcGIS Enterprise (Server, Portal, and Data Store).
Proficiency in Python and/or JavaScript, including the ArcGIS API for JavaScript.
Experience developing and deploying web-based GIS applications.
Familiarity with RESTful APIs, web services, and ArcGIS Online/Enterprise services.
Hands-on experience with PostgreSQL/PostGIS or similar spatial databases.
Understanding of spatial data types, including vector and raster, and coordinate systems.
Experience with cloud platforms such as AWS or Azure, including services such as S3, EC2, or Azure Blob.
Ability to build and troubleshoot data pipelines and ETL processes.
Experience with Git and version control systems.
Strong problem-solving and communication skills.
Willingness to work full-time onsite in Reston, Virginia.

Nice To Haves

Bachelor's degree in a related field.
At least 4 years of professional GIS and software development experience.
Experience with Docker, Kubernetes, or other container/orchestration tools in a geospatial context.
Experience with CI/CD pipelines and infrastructure-as-code tools such as Terraform.
Familiarity with ArcPy and geoprocessing services.
Understanding of OGC standards such as WMS, WFS, and GeoJSON.
Knowledge of data governance, metadata standards, and geospatial data quality assurance.
Experience working in Agile development teams or DevOps environments.

Responsibilities

Design, build, and maintain custom ArcGIS Experience Builder Developer Edition widgets and extensions using React and TypeScript.
Integrate custom widgets with Enterprise Portal web maps, feature services, and geoprocessing tasks; optimize client-side rendering and user experience for specialized analytical workflows.
Author, publish, and manage ArcGIS Enterprise/Portal services, including custom geoprocessing tools and spatial analysis web services.
Expose and optimize ArcGIS Server/Portal REST endpoints, including Feature Services, Map Services, Query Services, and GeoJSON endpoints, for enterprise search and external indexing systems.
Automate data preparation and back-end tasks with Python, ArcPy, and the ArcGIS API for Python to support enterprise analytic services.
Engineer and maintain data layers, views, and back-end geodatabase architectures in ArcGIS Pro and Portal for operational ArcGIS Dashboards.
Establish automated ETL routines to synchronize spatial databases with dashboard reporting layers in real time or near real time.
Design and implement ArcGIS Survey123 forms with advanced XLSForm logic, including cascading selects, nested repeats, dynamic calculations, custom validation expressions, and pull data functions.
Integrate Survey123 workflows with webhooks, automated notifications, and post-submission geoprocessing tasks.
Plan and execute secure content and data migrations across ArcGIS Enterprise Portals, including web maps, hosted feature layers, user permissions, and associated assets.
Use the ArcGIS API for Python to script repeatable portal migration pipelines.
Deploy and administer collaborative ArcGIS Earth workflows for analysts and non-core GIS staff to ingest, view, and manipulate spatial data.
Configure ArcGIS Earth connection profiles, Portal authentication, layer packages, and KML/KMZ service feeds for analyst data entry and 3D terrain visualization.
Work with stakeholders, analysts, project managers, search platform teams, and technical leads to translate workflows into technical specifications.
Automate the creation of geospatial products and visual representations for users.