5G System Integration Engineer

Kratos Defense & Security Solutions, Inc. • Colorado Springs, CO • 10h ago

Job Descriptions:

Readiness Delivered. At Kratos, we encourage an entrepreneurial spirit balanced with discipline. We work hard, and take care of our customers, employees, and families. Recognized as thought leaders in our industry, we are motivated by creating and delivering innovative solutions to our nation and global customers. We are seeking a highly skilled 5G Systems Integration Engineer with a strong background in gNB system architecture, integration, and validation. The ideal candidate has hands-on experience with 5G NR, O-RAN components, and end-to-end system bring-up, as well as practical programming skills (C++ preferred) to support automation, debugging, and custom tooling development.

The responsibilities include, but are not limited to, the following:

System Integration Ownership: Plan and execute integration across core, RAN (O?RAN), PHY/MAC (L1/L2), RF front?end, timing/GNSS, and management/telemetry.

Test Automation & Tooling: Build CI driven integration test harnesses (E2E attach, bearer setup, handover, throughput/latency, BLER, KPI trending), log analysis pipelines, and reproducible lab scenarios.

Lab-to-Field Readiness: Drive configuration baselines, soak testing, and pre-flight checklists; support OTA demos and field trials; ensure smooth handoff to customer ops.

Issue Triage & Root Cause: Lead cross-functional triage (firmware, RF, core, networking), isolate defects, and implement fixes with regression safeguards.

Performance Optimization: Tune parameters for scheduling, HARQ, beamforming, and RF chains to meet contractual KPIs.

Compliance & Interop: Validate against relevant specs (e.g., 3GPP call flows for SA, NTN-specific scenarios) and partner equipment interoperability.

Develop and maintain C++ utilities and Python scripts for automation, log parsing, test harnesses, and debugging workflows.

Documentation & Repeatability: Maintain integration runbooks, configuration guides, and acceptance test procedures for reuse across customers.

Participate in Agile ceremonies and demonstrate test results

Required Experience:

Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field

Strong understanding of cellular architecture (5G or 4G LTE): RAN, air interface (5GNR/LTE), and 3GPP standards

Hands-on wireless systems test experience: performance, interoperability, protocol testing

Proficiency with test equipment: signal generators, spectrum analyzers, UE simulators, protocol analyzers

Proficiency in C++ for tooling, integration support, and system-level development.

Strong cross-functional triage and documentation skills

Preferred Skills and Experience

Viavi TM500 UE simulator experience

Customer deployments, field testing, or carrier certification processes.

Ability to write clean, maintainable, production-grade C++ (C++14/17/20 experience preferred).

Experience with NTN scenarios, OTA demos, and lab-to-field transitions.

LI-Hybrid

The grade-based pay range for this job is listed below. Individual salaries within that range are determined through a wide variety of factors including but not limited to education, experience, knowledge, and skills.

Competitive salary based on experience and education Salary Range: $130,000-$170,000

Kratos is valued for our ability to design and deliver leading edge, resilient solutions for aerospace communication, control, awareness and mission success across a continuum of offerings-from commercial to tailored custom solutions and integrated programs. Customers trust us to stay relevant and know we are in it for the long-haul. We bring both the capability and confidence that our customers value and depend on. And we always deliver.

This posting will close within 90 days from the Posting Date.

Keyword: System Integration Engineer

Kratos Defense is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws.

Disability Accessibility Accommodation

If you require an accommodation to navigate or apply to our careers site, please send your request to HRAccessibility@kratosdefense.com or call 858-964-2916. Any inquires not related to requesting an accommodation will be discarded.

Pay Transparency

The company will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.

Job Applicant Privacy Notice

For applicants in the EU and California residents, please review our privacy notice.

From: Kratos Defense

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