01
Cloud & hybrid infrastructure
Azure, Azure Government, landing zones, migrations, identity, networking and resilient hybrid environments.
SENIOR INFRASTRUCTURE ENGINEERING · EST. 2008
Technology that gives your business room to grow.
Give your team dependable systems, your business a clearer path to growth, and yourself fewer technology interruptions. JTE assesses, engineers and improves the cloud, infrastructure and security your operations depend on.
27 years in IT Remote across the U.S. Project & retainer work
CORE CAPABILITIES
Senior expertise, applied directly.
From recurring outages to rising cloud costs, start with the issue affecting your business. Explore exactly what we assess, implement and deliver for each service.
02
Linux & platform engineering
Hands-on Linux administration, modernization, performance analysis, hardening and production troubleshooting.
03
VMware & virtualization
ESXi and vCenter health, lifecycle planning, cluster operations, migrations, networking and storage optimization.
04
Security hardening
Vulnerability remediation, endpoint security, access review, DLP and infrastructure controls for regulated environments.
05
Automation & DevOps
Terraform, CI/CD and repeatable infrastructure delivery that reduces manual work and deployment risk.
06
Fractional IT leadership
Senior infrastructure oversight, modernization roadmaps, vendor coordination, budgets and delivery leadership.
CLEAR ENTRY POINTS
Start focused. Scale when the value is clear.
Professional consulting starts at $150/hour. Fixed-price assessments create a low-risk path into larger implementation work.
IT Strategy Consultation
$125A focused executive discussion with clear next steps.
Select serviceInfrastructure Health Check
$495+High-level review of servers, cloud, network, backup and risk.
Select serviceSecurity Baseline Assessment
$950+MFA, endpoints, patching, backups and privileged access.
Select serviceCloud / Azure Assessment
$1,500+Configuration, risk, cost, operations and modernization priorities.
Select serviceIMPLEMENTATION PROJECTS$2,500 – $50,000+
Cloud migrations, infrastructure modernization, security hardening, automation and regulated environments are scoped through a written Statement of Work.
Request project scopingONGOING SUPPORT
Senior capacity without a full-time hire.
Monthly retainers for businesses that need reliable access to infrastructure engineering and technology leadership.
Essential
$1,750/ month
Up to 10 hours / monthPeriodic senior engineering assistance and priority scheduling.
Discuss this retainerBusiness
$3,500/ month
Up to 22 hours / monthPriority support plus a monthly infrastructure review.
Discuss this retainerEnterprise
$6,500/ month
Up to 42 hours / monthEngineering access, planning and ongoing technical advisory.
Discuss this retainerWHY JEFFERSON TECHNOLOGY ENTERPRISES
Built for the problems that do not fit neatly into one vendor.
Jefferson Castillo brings 27 years of professional IT experience across cloud platforms, enterprise Linux, virtualization, hybrid infrastructure, public-sector environments, security remediation and operations.
The value is not another strategy deck. It is the ability to trace a problem across operating systems, cloud, networking, identity, security and automation—then execute the fix.
PRIMARY PROFESSIONAL PROFILEView Jefferson Castillo on LinkedIn