ArcGIS Enterprise Administrator

Summary

Company Description OldRex Technologies is a mission-driven technology company founded by U.S. Coast Guard veterans and rooted in precision, readiness, and service. The team translates complex operational requirements into practical, high-impact digital solutions for government and commercial clients. This background provides a distinctive “always ready” mindset that shapes how projects are planned, executed, and supported. Applicants can expect a culture that values reliability, attention to detail, and clear communication. Professionals who thrive in structured, purpose-oriented environments will find meaningful work and growth opportunities here.

Location: Arlington, VA

Clearance: TS/SCI

Requirements

· 3-5 professional experience designing, implementing, administrating and maintaining enterprise GIS systems (PROD and DEV)

· Broad system administration experience on Windows and/or Linux

· Experience with at least one RDBMS, including SQL query writing (such as SQL Server, Oracle, PostgreSQL)

· Experience with Esri software including ArcGIS Enterprise and Portal for ArcGIS and their associates APIs or interfaces

· Working knowledge of at least one scripting or programming language (such as Python, PowerShell, Javascript, C#)

· Familiarity with network concepts and topics (such as domains, directories, DNS, HTTPS, firewalls, proxies, load-balancing)

· Familiarity with authentication concepts and topics (such as SAML, Web Tier, OIDC)

· Familiarity with cloud-based system operations (SysOps)

· TS/SCI US Security Clearance

· Bachelor's in Computer Science, Mathematics, Geographic Information Systems (GIS) or STEM related field

Recommended Qualifications

· Master's in Computer Science, Mathematics, Geographic Information Systems (GIS) or STEM related field

· One or more industry-standard IT certifications (such as Esri, CompTIA, Microsoft, Amazon)

· Experience with Esri software including ArcGIS Pro, ArcGIS Notebook Server, ArcGIS Monitor and their associates APIs or interfaces

Job Description

Company Description OldRex Technologies is a mission-driven technology company founded by U.S. Coast Guard veterans and rooted in precision, readiness, and service. The team translates complex operational requirements into practical, high-impact digital solutions for government and commercial clients. This background provides a distinctive “always ready” mindset that shapes how projects are planned, executed, and supported. Applicants can expect a culture that values reliability, attention to detail, and clear communication. Professionals who thrive in structured, purpose-oriented environments will find meaningful work and growth opportunities here.

Location: Arlington, VA

Clearance: TS/SCI

Requirements

· 3-5 professional experience designing, implementing, administrating and maintaining enterprise GIS systems (PROD and DEV)

· Broad system administration experience on Windows and/or Linux

· Experience with at least one RDBMS, including SQL query writing (such as SQL Server, Oracle, PostgreSQL)

· Experience with Esri software including ArcGIS Enterprise and Portal for ArcGIS and their associates APIs or interfaces

· Working knowledge of at least one scripting or programming language (such as Python, PowerShell, Javascript, C#)

· Familiarity with network concepts and topics (such as domains, directories, DNS, HTTPS, firewalls, proxies, load-balancing)

· Familiarity with authentication concepts and topics (such as SAML, Web Tier, OIDC)

· Familiarity with cloud-based system operations (SysOps)

· TS/SCI US Security Clearance

· Bachelor's in Computer Science, Mathematics, Geographic Information Systems (GIS) or STEM related field

Recommended Qualifications

· Master's in Computer Science, Mathematics, Geographic Information Systems (GIS) or STEM related field

· One or more industry-standard IT certifications (such as Esri, CompTIA, Microsoft, Amazon)

· Experience with Esri software including ArcGIS Pro, ArcGIS Notebook Server, ArcGIS Monitor and their associates APIs or interfaces