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Sr. Software Engineer with Security Clearance
22nd Century Technologies, Inc.Redondo Beach, CA🇺🇸United StatesPosted 10 Jul 2026
Quick Overview
Work Type
On Site
Schedule
Any Job Type
Level
Mid Senior
Job Description
Job Title: Software Engineer 2, Sensitive Compartmented Investigation (SCI)
Location: Redondo Beach, CA
Duration: 12 months Description
We 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. *** is looking for an Intermediate to Senior Software Engineer to support our Ground Solutions and Mission Support (GSMS) Software (SW) Integrated Project Team (IPT). The SW IPT is a large restricted group executing across both Development and Operations and Maintenance (O&M) contracts and focuses on the development and sustainment of several mission operational SW product lines, as well as the development of new capabilities as coordinated with their restricted SCI Customer. The SW IPT is a large team comprising of multiple subsystems, each with a specialized SW focus. This position is 100% on-site in a Sensitive Compartmented Investigation Facility (SCIF) located in Redondo Beach, CA. We are looking for an energetic and passionate software engineer to join our diverse and highly skilled team as we work to provide innovative solutions to complex issues in support of our Customer’s national security mission in the areas of Next Generation Ground Systems, Ground Element Modernization (GEM), and SW deliveries to CONUS and OCONUS operational sites. Responsibilities: • Perform as a C++ SW developer in a fast-paced agile team environment comprised of Red Hat Enterprise Linux (RHEL) VMs, servers, and workstations
• Design, code, and unit test new SW capabilities per Mathematical Algorithm Requirements (MARs)
• Identify, troubleshoot, and provide/turnover SW fixes to Discrepancy Reports (DRs)
• Collaborate with SW IPT subject matter experts (SMEs) and senior staff engineers across multiple SW subsystems Basic Qualifications for Software Engineer: • Bachelor's degree in a STEM discipline with 5 - 8 years of experience, a Master's degree in a STEM discipline with 3 – 6 years of experience or a PhD in a STEM discipline with 1 – 4 years of experience. An additional 4 years of relevant SW experience may be considered in lieu of degree
• Active SSBI required at the time of application, and the ability to obtain SCI prior to start date
• Advanced Object-Oriented programming skills and proficiency with C++ programming
• Knowledge of Red Hat Enterprise Linux operating system
• Demonstrated problem solving, troubleshooting, and decision-making skills.
• This position requires the applicant to be a U.S. citizen. Preferred Qualifications for Software Engineer: • DevSecOps Test Automation experience
• Experience with programming/scripting languages: C. C++. Java, Python, Perl
• Strong in math and algorithms
• Excellent communication and interpersonal skills, with the ability to interface with all levels of employees, management, and stakeholders
• Previous participation on an Agile scrum team or familiarity with the Agile process
• Familiarity with the Atlassian Tool Suite (Confluence, Jira, Bitbucket, Bamboo)
• Experience developing in a Linux environment using git
• Active SCI security clearance
Location: Redondo Beach, CA
Duration: 12 months Description
We 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. *** is looking for an Intermediate to Senior Software Engineer to support our Ground Solutions and Mission Support (GSMS) Software (SW) Integrated Project Team (IPT). The SW IPT is a large restricted group executing across both Development and Operations and Maintenance (O&M) contracts and focuses on the development and sustainment of several mission operational SW product lines, as well as the development of new capabilities as coordinated with their restricted SCI Customer. The SW IPT is a large team comprising of multiple subsystems, each with a specialized SW focus. This position is 100% on-site in a Sensitive Compartmented Investigation Facility (SCIF) located in Redondo Beach, CA. We are looking for an energetic and passionate software engineer to join our diverse and highly skilled team as we work to provide innovative solutions to complex issues in support of our Customer’s national security mission in the areas of Next Generation Ground Systems, Ground Element Modernization (GEM), and SW deliveries to CONUS and OCONUS operational sites. Responsibilities: • Perform as a C++ SW developer in a fast-paced agile team environment comprised of Red Hat Enterprise Linux (RHEL) VMs, servers, and workstations
• Design, code, and unit test new SW capabilities per Mathematical Algorithm Requirements (MARs)
• Identify, troubleshoot, and provide/turnover SW fixes to Discrepancy Reports (DRs)
• Collaborate with SW IPT subject matter experts (SMEs) and senior staff engineers across multiple SW subsystems Basic Qualifications for Software Engineer: • Bachelor's degree in a STEM discipline with 5 - 8 years of experience, a Master's degree in a STEM discipline with 3 – 6 years of experience or a PhD in a STEM discipline with 1 – 4 years of experience. An additional 4 years of relevant SW experience may be considered in lieu of degree
• Active SSBI required at the time of application, and the ability to obtain SCI prior to start date
• Advanced Object-Oriented programming skills and proficiency with C++ programming
• Knowledge of Red Hat Enterprise Linux operating system
• Demonstrated problem solving, troubleshooting, and decision-making skills.
• This position requires the applicant to be a U.S. citizen. Preferred Qualifications for Software Engineer: • DevSecOps Test Automation experience
• Experience with programming/scripting languages: C. C++. Java, Python, Perl
• Strong in math and algorithms
• Excellent communication and interpersonal skills, with the ability to interface with all levels of employees, management, and stakeholders
• Previous participation on an Agile scrum team or familiarity with the Agile process
• Familiarity with the Atlassian Tool Suite (Confluence, Jira, Bitbucket, Bamboo)
• Experience developing in a Linux environment using git
• Active SCI security clearance
Skills
Scrum
Agile
Bamboo
Confluence
C++
Git
Java
Jira
Perl
Python
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