Junior Application Network Engineer (TS/SCI Ready)

CACI International Inc.; Colorado Springs (CO); On-site; USD 75,000 - 158,000; Full time

Job summary

CACI International Inc. is seeking a Junior Application Services Engineer to support the DIA CIS program, delivering secure application network services and architecture designs.

You will work with government stakeholders, analyze requirements, and help drive capacity, performance, and availability for critical IT infrastructure. The role emphasizes AoAs, CSI participation, and engineering documentation, with a focus on secure traffic management, PKI, and scalable network solutions in a

Qualifications

• Must hold a current TS/SCI clearance with poly
• DOD 8140 Certification applicable to role (minimum Security+)
• HS and 12+ years of experience, an AA and 10+ years of experience, BS/BA and 8+ years of experience, MS/MA and 6+ years of experience, or PhD and 4+ years of experience
• Minimum 4 years of hands‑on experience designing, integrating, validating, and implementing IT hardware and software solutions
• Working knowledge of Microsoft Active Directory, Local/Global Traffic Manager, Big IP, Infoblox
• Willingness to learn new skills and new technologies

Responsibilities

• Develops, engineers, and delivers solutions PKI authentication, secure traffic offloading, and highly available local and global traffic management systems for the DoDIIS and DTE COE enterprise
• Provides traffic management, accountability, and functionality of the Load Balancing (LB) and Reverse Proxy (RVP) operations and prevailing solutions infrastructures to Local Traffic Manager, Global Traffic Manager, Big IP, and Tool Command Language (TCL)
• Designs and configures secure IP address management technologies, including Domain Name Services (DNSs), Dynamic Host Configuration Protocol (DHCP), and Network Time Protocol (NTP) services, for internal and customer workstations, servers, and virtual infrastructure
• Analyze requirements, Concepts of Operations (CONOPS), and system architectures to create detailed infrastructure and data center designs in line with program vision and objectives
• Collaborate with Operations teams and Government stakeholders to refine requirements and ensure availability, reliability, resiliency, and operability objectives are well understood and achievable
• Research optimal design characteristics and conduct Analyses of Alternatives (AoAs) for objective, informed decision‑making on technology and service options, feasibility studies, and proofs of concepts
• Incorporate capacity, performance, and other service‑level metrics into designs for optimal user experience and infrastructure utilization
• Work in small teams or independently to produce engineering and design artifacts, test cases, training materials, and supporting documentation, including CONOPS, while providing team guidance and technical leadership where appropriate
• Research new technologies and capabilities, articulate the benefits of integration into current infrastructure ecosystems to stakeholders, and conduct objective AoA and trade‑off decisions as a key member of Continual Service Improvement (CSI) and innovation activities
• Use Lab facilities to promote experimentation, technical investigation, and feasibility validation of proposed designs and equipment
• Develop test cases and scripts for unit and system tests across all designs and configurations, using Lab facilities to ensure complete test coverage and positive outcomes before readying components for deployment
• Support the transfer of engineered solutions to Operations teams throughout acceptance testing, Blue/Green fielding, and early production use to ensure smooth operations during initial fielding
• Develop and execute IT equipment strategy covering assessment and planning, vendor evaluation and procurement, implementation and deployment, governance and oversight, compliance, and risk management
• Deliver end‑to‑end engineering transition support to ensure seamless handoff of engineered digital infrastructure from development to ongoing operational maintenance

Skills

Top Secret SCI clearance

DOD 8140 Certification

Microsoft Active Directory

Local Traffic Manager

Big IP

Infoblox

Willingness to learn

Tools

Active Directory

Local/Global Traffic Manager

BIG-IP

Infoblox

Job description

CACI International Inc. is seeking a Junior Application Services Engineer to support the DIA CIS program, delivering secure application network services and architecture designs.

You will work with government stakeholders, analyze requirements, and help drive capacity, performance, and availability for critical IT infrastructure. The role emphasizes AoAs, CSI participation, and engineering documentation, with a focus on secure traffic management, PKI, and scalable network solutions in a