17 principal software engineer jobs found

Description SAIC seeks a highly experienced and energetic Senior Principal Software Engineer to support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions in Colorado Springs, Colorado. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Software Engineer is responsible for responsive and coherent planning, development, and delivery of PARCS and UEWR assessment of systems and networks within the environments to identify where those systems and networks deviate from acceptable configurations, enclave policy, or local policy. Job Duties: Responsible for code development and code deployment for the software version releases which modifies the software baseline of the BMEWS/PAVE PAWS ground-based radar sensors. Designs, develops, documents, tests...

Description SAIC seeks a highly experienced and energetic Principal Software Engineer to support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions in Colorado Springs, Colorado. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Software Engineer is responsible for responsive and coherent planning, development, and delivery of PARCS and UEWR assessment of systems and networks within the environments to identify where those systems and networks deviate from acceptable configurations, enclave policy, or local policy. Job Duties: Responsible for code development and code deployment for the software version releases which modifies the software baseline of the BMEWS/PAVE PAWS ground-based radar sensors. Designs, develops, documents, tests and...

Description SAIC is seeking a full-stack Principal Software Engineer to join the Joint Range Extension (JRE) software development team. This is a Remote Role in San Diego, CA. It is REQUIRED to be local to the area . You must be a U.S. Citizen to be considered who can obtain a Secret clearance after you start. JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States and our allies by extending the reach of tactical data across the battlespace and around the globe. As a senior principal software engineer on the team, you'll play an essential role in evolving JRE for the future mission needs of the warfighter. JOB DUTIES: Design, develop, and maintain major new features, enhancements, and integrations for the JRE suite of edge- and cloud-deployed client and server applications. Develop and contribute deep domain expertise in the tactical data link, situational awareness, and command and control domains. Refactor existing...

Description SAIC is seeking a talented and motivated Principal Software Engineer to support advanced Very Low Frequency (VLF) communication systems for the U.S. Navy and Air Force. Join our innovative team in San Diego, CA , and contribute to mission-critical efforts in cutting-edge defense communication technology development, integration, and testing. This will be an ON-SITE role in San Diego, CA. Must be local to area. Your Role As a Principal Software Engineer , you will be a key technical contributor supporting the full software development lifecycle (SDLC) for strategic RF and VLF communication systems. You will collaborate with cross-functional engineering teams to design, develop, test, and integrate software solutions that directly support national defense communication missions. Key Responsibilities Design, develop, and maintain software for RF and VLF communication systems supporting U.S. Navy and Air Force operations Write clean, efficient,...

Description SAIC is seeking a Software Engineer Principal for the Unmanned Maritime Systems Support (UMSS) effort. This program will entail Common Control System (CCS) integration in support of REPMUS (Robotic Experimentation and Prototyping with Maritime Unmanned Systems) which is an annual exercise in Portugal. This position is contingent upon award news, expected July 2026 . This position is remote and will involve significant travel annually to Portugal for exercise integration support. Job Duties: Work with the multidisciplinary technical team to ensure successful integration of the Common Control System into REPMUS Qualifications Required Education and Experience: Bachelor of Science degree in Computer Science, Computer Engineer, or Electrical Engineering Required Security Clearance: Must have an active secret clearance on first day of employment Required Certifications: N/A Desired Qualifications and Experience: 10 years of...

Description Join the Data Feed Integration (DFI) team on the Advanced Battle Management System (ABMS) Cloud-Based Command and Control (CBC2) Program. In this role, you will support SAIC's efforts as the Lead Systems Integrator (LSI) by driving critical data feed integration initiatives. The DFI team plays a pivotal role in ensuring the seamless integration of external data feeds, API-based systems, and internal architectures, enabling mission success. This position is central to modernizing advanced Command and Control (C2) capabilities for DoW systems and advancing operational readiness. This position operates in a hybrid work environment with responsibilities divided between 25% travel (including installations and integration events in secure spaces), 25% in-office presence for team collaboration and operational needs, and 50% remote work for independent and team-oriented tasks. This is a unique position that blends technical, strategic, and collaborative responsibilities. You...

Description SAIC seeks an experienced and energetic Principal Weather Systems Engineer to directly support the modernization of the space launch ranges, meeting mission requirements, providing range capabilities, and supporting the Assured Access to Space (AATS) mission. The overarching purpose of the program is to perform system modernization and digital transformation projects that will enable the acceleration of the space launch cadence to enable the Spaceport of the future. This position is located in Cape Canaveral, Florida or Vandenberg Space Force Base, CA. Job Responsibilities: Design and develop solutions for weather forecasting and monitoring systems. Integrate hardware and software for meteorological data collection and real time processing. Analyze system performance and implement improvements for accuracy and reliability. Collaborate with cross functional teams to translate forecasting needs into technical solutions. Develop and support algorithms for data...

Description SAIC is seeking a highly skilled Principal Field Engineer to serve as a Technical Subject Matter Expert (SME) on the Joint Range Extension (JRE) Team. In this critical role, you will support customer engagements, enable tactical mission success, and provide expert guidance across the full spectrum of Tactical Data Link (TDL) operations. The ideal candidate brings deep operational understanding of tactical data links, existing tactical data link capability gaps, and demonstrates the ability to drive innovation to mitigate those gaps, all while working independently in a hybrid environment. The ideal candidate brings deep operational understanding in Army Aviation, Link-16, ATAK/WINTAK, and VMF, along with the ability to work independently in a hybrid environment. This position requires a dynamic, self-motivated professional with strong problem-solving skills, excellent communication abilities, and the capacity to manage travel, schedules, and coordination across...

Description SAIC is seeking a Principal Systems Enginee r to support the TACNET Sustainment Team who will assist and lead various efforts and initiatives involving our tactical networks. Ideal candidate will help fleet and government customer in high tempo situations to support and resolve issues in a methodical and swift manner to restore critical mission essential services at sea. Person will work closely with sustainment engineering team and development team to purpose and engineer solutions to improve, modernize, and sustain afloat networks using an agile methodology in a DevOps environment. Must be willing and interested in learning new toolsets, templates and workflows as business needs evolve. This role is Hybrid/Remote, must be local to San Diego, CA and okay with 10% travel. JOB DUTIES: Provide System life cycle software engineering support for our NAVWAR and NIWC customers. Focus primarily on software components loaded on supported tactical networks to sustain...

Description SAIC is seeking a Software Architect to join our team in El Segundo, CA or Colorado Springs, CO. The Software Architect will work closely with the Principal Engineer to define the platform's overall design, reference architecture, and supporting demonstrators. This role demands broad technical depth and is well suited to someone experienced across the full stack of large-scale, deployed systems who can make principled, high-quality design decisions across diverse technologies. The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge Systems Engineering & Integration (SE&I) for the US Space Force's Space Systems Center (SSC). We support the Space Force's acquisition of state-of-the-art satellite communications systems, providing global secure, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using...

Description SAIC is seeking a Software Architect to join our team in El Segundo, CA or Colorado Springs, CO. The Software Architect will work closely with the Principal Engineer to define the platform's overall design, reference architecture, and supporting demonstrators. This role demands broad technical depth and is well suited to someone experienced across the full stack of large-scale, deployed systems who can make principled, high-quality design decisions across diverse technologies. The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge Systems Engineering & Integration (SE&I) for the US Space Force's Space Systems Center (SSC). We support the Space Force's acquisition of state-of-the-art satellite communications systems, providing global secure, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using...

Description SAIC seeks a highly experienced Principal Test Engineer to support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions in Colorado Springs, Colorado. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Principal Test Engineer is responsible for development and execution of system test solutions in accordance with engineering documentation to ensure test plans and methodologies meet system needs, are accurate, comprehensive, consistent, and complete. Job Duties: Participate, prepare, and execute comprehensive subsystem and enterprise-level test plans and procedures, and support system/element level test planning and test readiness reviews. Document test requirements and methodologies in the requirements management system. Support the...

Description SAIC is seeking a Software Architect to join our team in Colorado Springs, CO. SAIC provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country's most critical role - protecting our national security. The Software Architect will work closely with the Principal Engineer to define the platform's overall design, reference architecture, and supporting demonstrators. This role demands broad technical depth and is well suited to someone experienced across the full stack of large scale, deployed systems who can make principled, high quality design decisions across diverse technologies. The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) contract provides leading edge Systems Engineering & Integration (SE&I) for the US Space Force's Space Systems Center (SSC). We support the Space Force's acquisition of...

Description SAIC seeks a highly experienced Principal Systems Engineer to support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Systems Engineer is responsible for responsive and coherent planning, development and delivery of UEWR radar hardware and software modifications in response to engineering change requests and/or system deficiency reports. This position is located on-site in Colorado Springs, Colorado. Job Duties Ensures the logical and systematic conversion of product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detailed trade studies, requirements allocation and interface...

Description SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA and requires an active TS/SCI clearance with Polygraph . This Customer's office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you. Job responsibilities include, but are not limited to: Support the Lifecycle Assessment and Authorization (A&A) process. Develop a Systems Security Plan (SSP). Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures. Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs). Monitor and track projects in the A&A queue....

Description SAIC is seeking a Senior Principal Software Architect to join the Joint Range Extension (JRE) software development team. This is a remote role within the U.S. JRE is a combat-proven datalink gateway that plays a vital role in the defense of the United States and our allies by extending the reach of tactical data across the battlespace and around the globe. As a Senior Principal Software Architect on the team, you'll play a leading role in shaping JRE's future. Key Responsibilities: Architecture Strategy and Design Collaborate with JRE's chief software architect to define the architectural vision, strategy, and technical roadmap for JRE Contribute to leading the team in making high-level design decisions and technology selections, documenting trade-offs and rationale Produce and maintain architecture artifacts, including an architecture description, component design documentation, architecture diagrams (C4, DoDAF, UML), and architecture decision records (ADRs)...

Description SAIC is looking for a RF Field Tech Engineer to support the US Navy in Crane, IN. JOB RESPONSIBILITIES: Test and Evaluation (T&E) Engineering input for the development of test structure, planning, execution, analysis, and reporting supporting engineering efforts for the C-UAS program. Technical support for test and evaluation of prototype and fielded hardware and software systems. Development and support of laboratory and field test events, test data collection and test data analysis during and after the tests, on-site support during tests, and development of final test reports. Assist an integrated project team of various professional disciplines with creative and efficient solutions on multiple projects requiring electrical engineering support. Manage and organize multiple technical tasks across numerous projects. Create, review, understand and maintain electrical drawings of varying technical complexity. Interact effectively with...