Junior Email Engineer

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

Benefits offered by this job

Healthcare

Flexible time off

Learning resources

Job summary

CACI International is seeking a Junior Email Engineer to design and support enterprise‑level email and collaboration services for the Defense Intelligence Agency. The role spans on‑premise, cloud, and Microsoft 365 platforms, with a focus on secure, scalable messaging ecosystems and mission readiness.

You will help modernize IT infrastructure, test rigorously, and ensure seamless transitions to operations while meeting strict IC requirements.

Qualifications

• Must hold a current Top Secret SCI clearance with ability to obtain poly prior to start.
• DOD 8140 Certification applicable to role (minimum Security+)
• Multiple education paths acceptable with relevant years of experience

Responsibilities

• Analyze requirements and architectures to design messaging infrastructure.
• Design Exchange/Outlook architectures and retention strategies.
• Implement PKI and MFA for client access to messaging services.
• Ensure compliance with IC, DoDIIS, DoD, and Federal regulations.
• Document and accredit new systems through RMF process for testing and ops.
• Coordinate with teams on storage and data solutions for SharePoint content.

Skills

Clearance TS/SCI

Willingness to learn

Security+ certification

Education

HS + 12+ years experience

AA in related field

BS/BA in related field

MS/MA in related field

PhD (optional)

Job description

Job Title: Junior Email Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

Anticipated Posting End: 1/1/2027

The Opportunity:

The CIS program supports our intelligence customer deliver IT services to conduct its globally distributed operations. We are driving an exciting technological transformation of customer IT services by leading the design, development, implementation, and operation of cutting-edge solutions. This includes continuous service improvement through the modernization of IT system infrastructure.

CACI is looking for an experienced, innovative, and motivated Junior Email Engineer to support the mission objectives and needs of the customer, the Defense Intelligence Agency. In this role, you will be a key member of the team for designing and engineering enterprise‑wide email and collaboration services that meet stringent Intelligence Community and customer requirements. You will translate mission needs and architectural objectives into secure, resilient, scalable messaging ecosystems built across on‑premise, cloud, and Microsoft 365 platforms. You will support modernization, conduct rigorous testing, and ensure seamless transition of engineered solutions into operations to maintain high‑performance, compliant, and mission‑ready communication services.

The position is contingent upon award of the DIA SITE III CIO Infrastructure Services (CIS) contract.

Responsibilities:

• Analyze requirements, concepts of operations, and system architectures to create detailed messaging‑infrastructure designs aligned with program vision and operational objectives.
• Contribute to the design of efficient Microsoft Exchange and Outlook client architectures, retention and archiving strategies, and integration configurations.
• Implement PKI and other multifactor authentication mechanisms for physical and web‑based client access to backend messaging services.
• Integrate classification markings, security controls, and audit capabilities into messaging systems to meet IC and DoDIIS requirements.
• Support the maximization of availability, resiliency, and reliability design parameters consistent with mission‑driven message‑delivery SLAs.
• Implement audit, archiving, retention, automation, and storage policies for email and related content to ensure compliance with IC, DoDIIS, DoD, and Federal regulations, and support collaboration workflows including Tableau and Power Apps.
• Document, accredit, and authorize new systems, applications, and major upgrades through the RMF process for testing and operational use.
• Coordinate with Engineering teams on storage and data solutions supporting SharePoint‑hosted content.
• Implement claims‑based and PKI‑driven authentication with role‑based access controls to meet mission security requirements.
• Support on‑premise, cloud‑based, and Microsoft 365 platform‑as‑a‑service designs, integrations, and deployments for SharePoint and related collaboration services.
• Provide guidance on migration strategies and the evolution of SharePoint‑based knowledge‑management platforms integrated with messaging ecosystems.
• Collaborate with Operations teams and Government stakeholders to refine requirements and ensure availability, reliability, resiliency, and operability of email and collaboration services.
• Research optimal design approaches and conduct Analyses of Alternatives to support informed decisions on technologies, feasibility studies, and proofs of concept.
• Incorporate capacity, performance, and service‑level metrics into email‑service designs to optimize user experience and infrastructure utilization.
• Produce engineering and design artifacts, test cases, training materials, and supporting documentation—including CONOPS—while working independently or providing guidance to small teams.
• Investigate emerging messaging and collaboration technologies, evaluate integration benefits, and conduct objective tradeoff analyses as part of Continual Service Improvement and innovation initiatives.
• Utilize Lab facilities to experiment, validate feasibility, and assess design and technology options for secure email architectures.
• Develop unit and system‑level test cases and scripts, ensuring thorough coverage and positive validation outcomes prior to deployment.
• Support the transition of engineered email solutions to Operations through acceptance testing, Blue/Green fielding, and early‑production rollouts.
• Provide advanced troubleshooting, repair, and optimization for messaging components, including those integrated with Virtual Desktop Infrastructure as applicable.
• Develop strategies covering planning, vendor evaluation, procurement, implementation, governance, compliance, and risk management.
• Support the full engineering‑to‑operations transition lifecycle to ensure sustained performance of messaging ecosystems.

Qualifications:

Required:

• Must hold a current Top Secret SCI clearance with ability to obtain poly prior to start
• 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
• Willingness to learn new skills and new technologies

Desired:

• Degree in Science, Technology, Engineering, or Mathematics
• Familiarity with IC ITE services and classified environments
• ITIL 4 Foundation Certification (or higher)

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CA CI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation’s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

Since this position can be worked in more than one location, the range shown is the national average for the position.

$75,200-$158,100

CACI is anEqualOpportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any otherprotectedcharacteristic.