At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems in air and space that impact people’s lives around the world today, and for generations to come. Our work preserves freedom, democracy, and advances human discovery and our understanding of the universe. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future and have a lot of fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they’re making history.
Northrop Grumman has an opening for a Principal Software Integration Engineer to join our team of qualified, diverse individuals. This position can be located in Huntsville, AL or Roy, UT.
Core Technical Skills:
Python proficiency – writing clean, testable code; familiarity with virtual environments, packaging, and type hints
Embedded/hardware interfaces – UART, SPI, I²C, CAN, USB, JTAG, GPIO, PWM, ADC/DAC
Real-time operating systems (RTOS) or bare-metal development basics
Hardware description/validation tools – Oscilloscopes, logic analyzers, multimeters, power supplies, test rigs
Firmware build systems – Make, CMake for cross-compilation
Version control – Git (branching, sub-modules, pull-request workflow)
CI/CD for embedded – Jenkins, GitHub Actions, GitLab CI with hardware-in-the-loop (HIL) runners
Software-Hardware Integration
Designing and implementing drivers/APIs that expose hardware functionality to Python
Using communication protocols (Modbus, MQTT, OPC?UA) to bridge software services and devices
Managing bootloaders, firmware upgrades, and configuration flashing
Testing & Validation
Unit/Component testing – pytest, unittest, hypothesis for pure-Python modules
Hardware-in-the-loop (HIL) testing – automated scripts that program devices, run stimulus, capture response, and assert results
System-level testing – Robot Framework, TestStand, or custom Python harnesses that coordinate multiple subsystems
Automated measurement – pyvisa / pyserial to drive test equipment and log data
Coverage & static analysis – coverage.py, pylint, mypy
DevOps & Deployment
Containerizing test environments (Docker) for simulation and host-side tools
Managing artifact repositories for firmware binaries (Artifactory, Nexus)
Using over-the-air (OTA) or in-field update pipelines
Methodologies
Agile/Scrum or Kanban for cross-functional teams
Familiarity with the V-model or ISO:26262-style verification flows in safety-critical domains
Soft Skills
Strong analytical debugging – ability to trace issues from software logs down to signal integrity on a PCB
Clear communication with electrical engineers, firmware developers, and QA testers
Documentation discipline – hardware interface specs, test procedures, and release notes
Basic Qualifications:
Principal Software Integration Engineer: 5 Years with Bachelor’s in related field of study, 3 Years with Masters, 01 Years with PhD or 04 additional years in lieu of a degree.
US Citizenship with Active DoD Secret clearance with a reinvestigation date occurring in the last 6 years.
Ability to obtain Special Program Access (SAP).
Ability to plan, execute, and manage the technical scope, and support leadership planning.
Experience with Agile and working in a cross-function Scrum team.
Working knowledge of Object-Oriented Analysis and Design principles
Experience developing complex software solutions using C++
Experience programming in scripting languages (Python, Bash).
Familiarity with Model-Based Systems Engineering languages (SysML/UML) and concepts
Experience Interpreting complex algorithms and requirements for implementation
Preferred Qualifications:
Current Special Program Access (SAP)
Experience with modern web technologies, virtual machines and containerized applications
Experience with the Atlassian Tool Suite including Jira and Confluence
Proficient with DOORS, Cameo with the ability to write and decompose system requirements
Ability to evaluate risks and tradeoffs and present solution options to management
IASAE III (e.g., CCSP, CISSP-ISSEP, CISSP-ISSAP) certification
IAT II (e.g., Security+, CISSP) certification
Understanding of OSI Open Systems Interconnection model and the impact of each level to the design of a network architecture.
Experience developing web-based applications on a cloud-based platform.
Experience deploying containerized applications in a Kubernetes framework.
Experience using Model Based Systems Engineering to model software functions using Cameo.
Experience using Unified Modeling Language to document software design using Cameo.
Knowledge of NIST and ISO standards.
Experience with other languages like C++, C#, and Python is a plus.
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Primary Level Salary Range: $98,400.00 - $163,200.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.ngc