Enterprise Systems Engineering
Architecture, integration, deployment, sustainment, and troubleshooting across Windows and Linux enterprise environments.
MISSION-FOCUSED TECHNOLOGY
Technology that performs when the mission depends on it.
CALLEN.global delivers secure enterprise IT engineering, cybersecurity, identity and access management, middleware, infrastructure, and modernization services for government and commercial organizations.
FEDERAL CONTRACTING
Small Business
Primary NAICS541512
Core PSCDH01 · DJ01
Secure systems. Modern platforms. Reliable execution.
We support complex enterprise environments with practical engineering,
disciplined delivery, and security-first technical solutions.
WHAT WE DO
Capabilities built around mission outcomes.
From legacy modernization to identity security, CALLEN.global provides focused technical expertise across the systems that keep organizations operating.
Oracle & Middleware
Oracle WebLogic, Forms, Reports, OHS, OAM, OUD, application delivery, and enterprise middleware engineering.
Cybersecurity & IAM
Identity and access management, PKI, CAC authentication, SSO, secure application access, and compliance-driven integration.
Infrastructure Operations
Server administration, network support, monitoring, patching, automation, reliability, and operational troubleshooting.
Application Modernization
Legacy application sustainment, scripting, custom development, platform upgrades, and modernization planning.
Automation & Integration
PowerShell, workflow automation, systems integration, process improvement, and repeatable operational tooling.
WHERE WE SERVE
Supporting critical environments across government and industry.
Federal CivilianEnterprise IT & modernization
DefenseSecure infrastructure & mission systems
Prime ContractorsSpecialized subcontracting support
CommercialComplex enterprise technology
GOVERNMENT CONTRACTING
Ready to team. Ready to deliver.
CALLEN.global is positioned to support federal agencies and prime contractors with specialized IT services focused on infrastructure, cybersecurity, middleware, identity, and enterprise operations.
Start a ConversationPrimary NAICS541512Computer Systems Design Services
Additional NAICS541511 · 541513 · 541519
PSC CodesDH01 · DJ01 · DG01 · DF01
Business TypeSmall Business
UEIPending
CAGEPending
ABOUT CALLEN
Engineering discipline without unnecessary complexity.
CALLEN.global provides mission-focused IT services designed to strengthen security, performance, reliability, and operational readiness.
We focus on hands-on engineering, clear communication, and practical solutions that can be supported long after deployment.
LET'S WORK TOGETHER
Bring CALLEN.global into your next mission.
For teaming, subcontracting, direct contracting, and technical services inquiries:
info@callen.global Virginia · United States