Crypto Software Engineer (Level 3 or 4)

Company: Northrop Grumman
Location: San Antonio
Posted on: April 2, 2026

Job Description:

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have 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. We are looking for you to join our team as a Principal or Sr. Principal Crypto Software Engineer based out of San Antonio, TX. What You'll Get to Do: In this role you will design, develop, integrate and test software for our end-user customers and businesses, primarily focused on cryptographic software code bases. Specifically, you will be responsible for the design, architecture, development, and administration of embedded and real time systems. You will work with multi-disciplinary teams, such as with Systems Engineering, Digital Engineering, Hardware, and Integration & Test, in an Agile software development environment. You will analyze system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls. This position can be filled at the Principal or Sr. Principal level. Principal Crypto Software Engineer Basic Qualifications: Bachelor's degree in Computer Engineering or another STEM discipline with 5 years of related experience, or Master's degree with 3 years or a PhD with 1 year of experience Proficient in C/C++ Crypto Systems Experience: familiarity developing cryptographic mechanisms using dedicated software libraries Proficient in all areas of the formal software lifecycle process from requirements to testing Experience with Rust framework Knowledge of Communication Protocols (I2C, SPI, UART, PCIe, Ethernet) Familiarity with Static Analysis and Unit Testing Experience using Jira/Bitbucket/Git and the Agile software development process US Citizenship is required Active DoD Secret clearance. Sr. Principal Crypto Software Engineer Basic Qualifications: Bachelor's degree in Computer Engineering or another STEM discipline with 8 years of related experience, or Master's degree with 6 years or a PhD with 4 years of experience. Experience with Rust framework Proficient in C/C++ Crypto Systems Experience: familiarity developing cryptographic mechanisms using dedicated software libraries Proficient in all areas of the formal software lifecycle process from requirements to testing Knowledge of Communication Protocols (I2C, SPI, UART, PCIe, Ethernet) Familiarity with Static Analysis and Unit Testing Experience using Jira/Bitbucket/Git and the Agile software development process US Citizenship is required Active DoD Secret clearance. Preferred Qualifications: Experience with Xilinx platforms (Zynq, Ultrascale, and VERSAL) Experience with TCP/IP and common network configurations Experience with RTOS designs and implementing secure software for embedded systems Familiarity with latest NSA Security Standards Familiarity with Linux kernel driver development/modifications Familiarity with PowerPC architectures and peripherals Familiarity with IBM tools (Rhapsody, DOORS, Clearcase) Current active Secret or Top Secret Clearance Current active SAP clearance Experience with developing and debugging embedded real-time systems. Knowledge of integrating low-level firmware and software in complex real-time multi-threaded embedded applications What We Can Offer You:Northrop Grumman provides a comprehensive benefits package and a work environment which encourages your growth and supports the mutual success of our people and our company. Northrop Grumman benefits give you theflexibility and control to choose the benefits that make the most sense for you and your family. Your benefits will include the following: Health Plan, Savings Plan, Paid Time Off and Additional Benefits including: Education Assistance, Training and Development, 9/80 Work Schedule (where available), and much more! Primary Level Salary Range: $103,600.00 - $155,400.00 Secondary Level Salary Range: $129,300.00 - $193,900.00 The 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.

Keywords: Northrop Grumman, New Braunfels , Crypto Software Engineer (Level 3 or 4), IT / Software / Systems , San Antonio, Texas