Lead, Software Engineering 1

L3Harris•Clifton, NJ

1d•Onsite

About The Position

L3Harris is seeking a Lead Software Engineer to develop and sustain mission-critical electronic warfare (EW) software in a cross-platform embedded environment. The role supports the full software lifecycle, including requirements analysis, architecture and design, implementation, integration, automated testing, platform deployment, and CI/CD release. The position calls for strong C++ and Rust skills and experience with embedded real-time systems, Linux-based development, modern software design, and collaboration across software, systems, integration, and laboratory teams. The engineer will develop solutions aligned with open architecture principles, including modularity, abstraction, portability, well-defined interfaces, interoperability, and long-term maintainability. The role supports software implementations aligned with government reference architectures and customer-directed technical baselines, including Common SDK, Open Common Environment (OCE), CFE, and other modular open systems approaches that support reuse, rapid integration, portability, and technology insertion across platforms and mission applications. The engineer will work across system, solution, software, and platform architecture levels to align implementations with mission requirements, open architecture standards, external interfaces, and government/customer reference architectures. Up to 10% travel to customer and test sites is required.

Requirements

Bachelor’s degree and a minimum of 9 years of prior relevant experience; or a graduate degree and a minimum of 7 years of prior related experience; or, in lieu of a degree, a minimum of 13 years of prior related experience.
Active Secret Clearance required.

Nice To Haves

7+ years of professional C/C++ software development experience.
5+ years developing software for embedded real-time systems.
5+ years supporting hardware/software integration and lab validation.
3+ years of professional Rust software development experience.
3+ years of software architecture/design using UML and requirements-driven development.
3+ years of automated testing and CI tools experience, such as CMake, GoogleTest, and Jenkins.
3+ years of experience with build/dependency tools such as CMake and Con [as written in the posting].
Experience applying MOSA principles in defense, aerospace, EW, or other mission-critical systems.
Experience with Rust in performance-sensitive, embedded, safety-focused, or secure software applications.
Strong experience with Linux systems programming, cross-compilation, and deployment in distributed or embedded environments.
Experience with software architectures designed for interoperability, portability, reuse, and long-term sustainment.
Experience across Linux, Windows, and RTOS environments such as VxWorks or Real-Time Linux.
Domain knowledge in electronic warfare (EW) and RF/signal-processing environments.
Familiarity with government or DoD architectural frameworks, platform reference architectures, and standards-driven integration approaches.
Familiarity with Common SDK, OCE, CFE, and reusable software framework integration strategies.
Experience supporting deployment or integration in high-performance compute, server-class, or Big Iron environments.
Familiarity with package repositories such as Artifactory; automated code-quality and security checks, including static analysis and code coverage; Black Duck tools for SAST/SCA; and UML/SysML modeling tools such as MagicDraw/Cameo.
Experience defining and managing software interfaces for open, extensible system designs.
Experience integrating software components into larger mission systems with attention to external interface compliance and architectural alignment.

Responsibilities

Develop and maintain high-reliability C++ and Rust software for embedded, real-time, and Linux-based systems.
Implement capabilities from system and software requirements with end-to-end traceability through verification.
Design, document, and evolve software architecture using UML and model-based artifacts as appropriate.
Apply open architecture principles, including modular decomposition, interface-based design, separation of concerns, abstraction layers, portability, and reuse.
Develop software consistent with government reference architectures, customer technical baselines, and interoperability requirements.
Support MOSA-aligned implementations that enable extensibility, upgradeability, technology insertion, and integration of third-party, GFE, or externally developed components.
Develop and integrate software within Linux-based environments, including cross-compiled and embedded targets.
Contribute to software frameworks and implementations aligned to Common SDK, OCE, and CFE architectural concepts and reusable component strategies.
Define and implement clean internal and external interfaces for loosely coupled, component-oriented, service-oriented, and event-driven architectures.
Build, deploy, integrate, and troubleshoot software across multiple targets, lab environments, and platform configurations.
Support deployment into edge/embedded environments and larger-scale compute infrastructures, including Big Iron processing environments as required by mission architecture.
Create and maintain unit, integration, and regression tests; improve automation and code coverage.
Support CI/CD pipelines for build, test, static analysis, security scanning, coverage, and artifact publication.
Collaborate with systems engineering, integration/lab teams, platform teams, and peer developers on feature delivery, architecture alignment, and defect resolution.
Produce technical documentation to support verification, maintainability, transition to operations, and architectural compliance.
Provide technical leadership in software design, development best practices, secure coding, and architectural consistency across the team.
Support integration within broader platform and mission-system environments, ensuring alignment with system-level architecture, external interfaces, and government/customer reference architectures.