Tier 3 Ground Terminal (GT)/ IT Engineer- Junior, Intermediate and Senior Level- TS/SCI with Polygraph
Quick Summary
● Education: BA/BS or equivalent technical education, training, or expertise ● Experience: 2+ years of relevant experience ● Technical skills: Antenna/RF systems, signal paths,
Skills:Antenna Engineering, IT Technologies, Microwave Systems, Radio Frequency (RF),
Clearance Level Must Currently Possess:
Top Secret SCI + PolygraphClearance Level Must Be Able to Obtain:
Top Secret SCI + PolygraphJob Family:
Professional EngineeringRequirements
~1 min readJob 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:
40Work Location:
USA CO AuroraAdditional Work Locations:
Location & Eligibility
About this job
- Pay per year
- $96,569–$130,651 a year
- 42% above the $80,000 median for It Support Specialist jobs on Jobera (542 salaries).
- Posted
- Today
Listing Details
- Posted
- November 8, 2026
- First seen
- November 8, 2026
- Last seen
- November 8, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 68%
- Scored at
- November 8, 2026
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