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Tier 3 Ground Terminal (GT)/ IT Engineer- Junior, Intermediate and Senior Level- TS/SCI with Polygraph

In short. Tier 3 Ground Terminal (GT)/ IT Engineer- Junior, Intermediate and Senior Level- TS/SCI with Polygraph at General Dynamics Information Technology: a full-time senior role, on-site in Aurora, CO. Posted salary: $97K – $131K. Asks for 2+ years of experience. Skills mentioned: CSS. Posted Nov 8, 2026, checked on the employer's site 1 hour ago.

Salary$97K – $131K / year
LocationAurora, CO
FormatOn-site
TypeFull-time
LevelSenior
PostedNov 8, 2026 · 10 hours ago
Checked on General Dynamics Information Technology's careers page 1 hour ago · via Workday0 views
  • Early applicant
  • Salary listed

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Summary

Transform technology into opportunity as the Tier 3 Ground Terminal (GT) / IT Engineer provides support for the sustainment of satellite GT antenna, Radio Frequency (RF), communications, and associated systems under the technical direction of more experienced engineers.

Quoted from General Dynamics Information Technology's description, not rewritten.

Skills mentioned

About the role

Type of Requisition:

Pipeline

Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

Public Trust/Other Required:

None

Job Family:

Professional Engineering

Job Qualifications:

Skills:

Antenna Engineering, IT Technologies, Microwave Systems, Radio Frequency (RF), RF Antenna

Certifications:

None

Experience:

2 + years of related experience

US Citizenship Required:

Yes

Job Description:


Job Description

Transform technology into opportunity as the Tier 3 Ground Terminal (GT) / IT Engineer provides support for the sustainment of satellite GT antenna, Radio Frequency (RF), communications, and associated systems under the technical direction of more experienced engineers. Supports troubleshooting, fault isolation, failure and root-cause analysis, non-routine maintenance, configuration-control activities, equipment modifications, integration, testing, and technical documentation to resolve complex or recurring GT problems. Perform GT antenna and analyses that are outside the scope of Tier-2 (T2) functions at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your career.


MEANINGFUL WORK AND PERSONAL IMPACT

As the T3 GT / IT Engineer work you’ll do at GDIT supports the mission of our customer.

•             Supports T3 GT engineering functions under the technical direction of Intermediate/Senior GT engineers.

•             Perform T3 sustainment of GT antenna to include root cause analysis, fix, and documentation updates to GT antenna.

•             Perform T3 sustainment for the ADF-C GTs that require T3 support.

•             Develop, test, verify, and distribute configuration changes to the GT operational baseline.

•             Coordinate and obtain Government approval of the timeline for insertion of changes to the GT operational system baseline.

•             Maintain and update B-level and C-level system specifications, intra-group Interface Control Document (ICD), and other GT baseline system documentation under which the Contractor is designated as the T3 sustainment support provider.

•             Replenish GT antenna spares for items not covered within the Control and Status Subsystem (CSS) or equivalent subsystem.

•             Support maintenance of GT antenna configuration items under which the contractor is designated as the Tier 3 / 4 sustainment support provider.

•             Identify obsolete GT antenna equipment and provide recommendations to the Government for suitable replacement.

•             Replace failed GT antenna hardware and return items to T2 once repaired.

•             Perform GT antenna calibrations and analyses that are outside the scope of T2 functions as defined in the applicable site procedures.

•             Maintain documentation of GT antenna calibrations.

•             Report GT antenna calibration results to include performance degradation and missing data.

•             Perform long-term GT antenna trend-analyses in support of operations and development programs.

•             Identify, prioritize, and justify GT antenna parts and materials procurement requirements for Government review and approval.

•             Coordinate with the Government and obtain approval prior to purchasing GT antenna parts and materials.

•             When applicable to the mission, escalate issues to vendors that can provide Tier 4 level equivalent services as necessary and required to maintain GT antenna.

•             Augment T2 sustainment support for GT software and hardware anomaly resolution and failure analysis.

•             Support T3 sustainment of GT Mission Unique Equipment (MUE) software and hardware.

•             Support T3 sustainment of C&T and wideband data paths.

Desired Qualifications:

•             Working knowledge of Antenna/RF systems, signal paths, communications equipment, GT interfaces, test equipment, and preventive/corrective maintenance.

•             Demonstrated experience supporting fault isolation, failure analysis, root-cause analysis, and resolution to complex or recurring equipment and system problems.

•             Experience performing non-routine maintenance, equipment modifications, installation, integration, checkout, testing, verification, and restoration activities.

•             Experience with configuration management, technical baseline control, approved configuration changes, maintenance/configuration documentation, and update of technical procedures and troubleshooting guidance.

•             Ability to analyze equipment condition, maintenance history, performance information, and recurring failures to identify technical trends, sustainment risks, and appropriate corrective and escalation actions.

•             Experience supporting T2 escalation and coordinating complex technical resolution with technicians, engineers, Software/IT personnel, Network Administrators, vendors, and Tier-4 support providers,

•             Experience supporting 8x5 operational environments.

•             Participates in special metrology projects as required.

WHAT YOU’LL NEED TO SUCCEED

Bring your management expertise along with a drive for innovation to GDIT.  The T3 GT / IT Engineer must have:

● Education: BA/BS or equivalent technical education, training, or expertise

● Experience: 2+ years of relevant experience

● Technical skills: Antenna/RF systems, signal paths, communications equipment, GT interfaces, test equipment, and preventive/corrective maintenance

● Security clearance level: TS/SCI with polygraph

● US citizenship required

● Role requirements: Full time / onsite at Government facility

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

● Growth: AI-powered career tool that identifies career steps and learning opportunities

● Support: An internal mobility team focused on helping you achieve your career goals

● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off

● Community: Award-winning culture of innovation and a military-friendly workplace


OWN YOUR OPPORTUNITY

Explore a career in science and research at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your curiosity for discovery and innovation.

The likely salary range for this position is $96,569 - $130,651. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

10-25%

Telecommuting Options:

Onsite

Work Location:

USA CO Aurora

Additional Work Locations:

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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Questions & answers

What is the salary for this Tier 3 Ground Terminal (GT)/ IT Engineer- Junior, Intermediate and Senior Level- TS/SCI with Polygraph role?
General Dynamics Information Technology lists $97K – $131K per year.
Is this job remote?
It is on-site in Aurora, CO.
How do I apply to General Dynamics Information Technology?
Use the Apply button. It opens the application on General Dynamics Information Technology's own careers site; no account on Sudo Get Job is needed.
What do Systems Administrator jobs pay in Denver, CO?
The median advertised base salary is $115K a year across 11 open listings.