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# 5G System Integration Engineer

- **Company:** Kratos Defense & Security Solutions, Inc.
- **Location:** Colorado Springs, CO, United States
- **Salary:** $130,000.0 - $170,000.0
- **Contract:** Permanent contract
- **Skills:** LTE (Telecommunication), Agile Methodology, Automation of Tests, C++ (Programming Language), Communications Protocols, Computer Programming, Computer Engineering, Software Debugging, Firmware, Interoperability, Log Analysis, Performance Tuning, Systems Architecture, Systems Integration, O-RAN, Scripting, 5G NR, Integration Tests, Information Technology, Cellular Architecture, GNSS
- **Published:** October 11, 2026
- **Apply:** https://www.juju.com/job/1_kratos-369520

## About the Role

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.