15 senior software engineer level 3 jobs found

Description SAIC is seeking a skilled Senior Mechanical Engineer to join our team in Huntsville, AL and provide technical expertise in designing, developing, and implementing complex mechanical systems for a reconfigurable air defense project. This role requires a deep understanding of mechanical engineering principles, a passion for solving challenging technical problems, and the ability to contribute in a cross functional team environment. The ideal candidate will bring 3 years of professional experience, advanced engineering knowledge, and a proven ability to design, analyze, and optimize mechanical systems. This is an exciting opportunity to be part of a fast-paced, high-impact project. Key Responsibilities Mechanical Design and Analysis: Design and develop complex mechanical systems and components. Collaborate with cross-functional teams (Electrical, Software, and Systems Engineers) to ensure the mechanical design meets the performance, reliability, and...

Description SAIC is seeking GEOINT Systems Engineer to support SAIC's Prime Program, Aretuza in Chantilly, VA. Aretuza is a SETA program, supporting the NRO's Ground Enterprise Directorate (GED). As the GEOINT Systems Engineer you will interact daily with senior government and Program staff to analyze new concepts and technologies; support the definition and baselining of new capabilities and/or enhancements; advise on all aspects of System Engineering analysis (architecture, requirements, Concept of Operations (CONOPs), interfaces, schedule, and dependency identification); test support, and provide Readiness Event support. Responsibilities to include Collaborate daily with development contractors, government program personnel, and customers on systems engineering and acquisition functions for GEOINT collection, mission management, and mission processing. Provide oversight and monitor software development and integration activities, ensuring alignment with...

Description SAIC is seeking an experienced Senior Principal Lead Software Engineer onsite in Colorado Springs, CO to serve as the Software Lead for multiple mission-critical software development projects. Reporting directly to the Lead Systems Engineer, you will be responsible for providing guidance, technical direction, and leadership across several software development efforts in a rapid prototyping environment. This role will balance hands-on technical contributions, team leadership, and input on software development best practices at the project level. This position focuses on leading and delivering software efforts for multiple projects, while also collaborating with the broader technical organization to define and refine software development standards, practices, and tools for consistent implementation across the program. Responsibilities: Project-Specific Leadership and Delivery: Lead software design, development, and testing for 2-4 mission-critical projects,...

Description SAIC is looking for a Senior Systems Engineer to serve as a Senior Systems Administrator with experience in US Navy IT networks to support the sustained operation and maintenance of a newly deployed US Navy enterprise transport network, ensuring 24/7/365 availability and reliability. The position will support end-to-end network, system, and element visibility; facilitate rapid operations, administration, maintenance, and provisioning to maintaining the operational integrity of a mission-critical network, requiring both technical expertise and a commitment to excellence in service delivery. This position will work a schedule of 7AM - 3PM, 5 days per week to include weekends and a rotating on call requirement. Work will be performed at the Navy customer's site in Suffolk, VA. Specific duties include: Provide Tier 3 level engineering operations support to quickly identify, triage, and address outages, analyzing symptoms and potential root causes to implement...

Description SAIC is seeking an experienced Software Engineer to support a mission-critical modernization program delivering a modular, adaptable software suite of essential capabilities across multiple warfighting functions. In this role, you will serve as a core technical contributor responsible for designing, developing, testing, and delivering high-performance software solutions that meet complex operational requirements across a modern, open-architecture platform spanning enterprise cloud and tactical edge environments. This position operates across cloud and tactical edge environments, supporting software design, development, and validation across the full software development lifecycle - from initial architecture through fielding - in both garrison and deployed settings, including Denied, Degraded, Intermittent, and Low Bandwidth (DDIL) environments. The work is to be performed at the customer site at Aberdeen Proving Ground (APG), MD. This role is contingent upon...

Description SAIC is seeking an experienced Cybersecurity Engineer to support a mission-critical modernization program delivering a modular, adaptable software suite of essential capabilities across multiple warfighting functions. In this role, you will serve as the technical authority responsible for designing, implementing, and maintaining a robust cybersecurity posture across a modern, open-architecture platform spanning enterprise cloud and tactical edge environments. This position operates across cloud and tactical edge environments, supporting cybersecurity architecture, implementation, and continuous monitoring across the full software development lifecycle - from initial design through fielding - in both garrison and deployed settings, including Denied, Degraded, Intermittent, and Low Bandwidth (DDIL) environments. The work is to be performed at the customer site at Aberdeen Proving Ground (APG), MD. This role is contingent upon award news in Fall 2026. Key...

Description SAIC is seeking GEOINT Software Systems Engineer to support SAIC's Prime Program, Landmark AOS in Chantilly, VA. Landmark AOS is a large SETA program, supporting the NRO's Ground Enterprise Directorate (GED), responsible for the acquisition of systems over the complete end-to-end life cycle. As the GEOINT Software Systems Engineer, you will guide the development, integration, and delivery of modern GEOINT mission capabilities. You will partner closely with development contractors, mission partners, and senior Government stakeholders to shape architectural direction, ensure engineering rigor, and drive the evolution of scalable, resilient ground-system software. This position supports a broad portfolio of high-visibility initiatives, including evaluation of emerging technologies, definition and baselining of new GEOINT capabilities, transition planning from legacy systems to cloud-native implementations, and full-spectrum systems engineering (architecture,...

Description SAIC is seeking an experienced Principal Lead Software Engineer onsite in Colorado Springs, CO to serve as the Software Lead for multiple mission-critical software development projects. Reporting directly to the Lead Systems Engineer, you will be responsible for providing guidance, technical direction, and leadership across several software development efforts in a rapid prototyping environment. This role will balance hands-on technical contributions, team leadership, and input on software development best practices at the project level. This position focuses on leading and delivering software efforts for multiple projects, while also collaborating with the broader technical organization to define and refine software development standards, practices, and tools for consistent implementation across the program. Responsibilities Project-Specific Leadership and Delivery: Lead software design, development, and testing for 2-4 mission-critical projects, ensuring...

Description SAIC is seeking a Agile Systems Engineer to fill a critical position on the LANDMARK AOS program in Chantilly, VA. LANDMARK AOS is SAIC's large Prime Systems Engineering and Technical Assistance (SETA) contract, supporting the customer's Ground Enterprise Directorate (GED), responsible for the acquisition of systems over the complete end-to-end life cycle. In this role, you will provide enterprise-level systems engineering expertise across cloud-based software development activities, ensuring architectures, requirements, schedules, and technical decisions align with mission needs. You will help shape system capabilities, identify risks and opportunities, and guide engineering rigor across a diverse portfolio of Significant Ground Capabilities (SGCs). Note: Only candidates with a current Top Secret/SCI with Poly will be considered. Key Responsibilities to include: Develop and deliver authoritative systems engineering products, including integration plans,...

Description SAIC has an opening for an organized and motivated Senior Mechanical Engineer who is looking for an opportunity to grow with our company as we continue to expand our support in the modernization and development of various torpedo test equipment hardware designs as well as supporting production activities out of our Middletown, RI office. The ideal candidate should have experience supporting various projects at all levels showcasing leadership qualities and attributes, as well as project management skills. The candidate should have the ability to discuss projects they have supported and/or led. Candidate should be able to self-manage/self-direct projects, and communicate regularly with customers, engineers, logisticians and technicians. Job Duties: Must be able to lead multiple high-profile projects which involve interfacing with the customer to define key test requirements, sourcing and interfacing with multiple suppliers / vendors, establishing...

Description SAIC is seeking a TS/SCI (with Poly) cleared Quantum Sensing Engineer responsible for providing high quality advisory services and program planning, implementation, and integration for Quantum Sensing and Networking efforts for Space Applications. As part of the team, you will be required to collaborate with others, as well as work individually, on strategies, roadmaps and recommended solutions for the implementation of Quantum Sensing and Networking Modalities. These modalities include atomic clocks, atom interferometers, quantum magnetometers, Rydberg sensors, and single photon detectors, among others. In this role, the Quantum Sensing Engineer will work with the customer to develop a quantum portfolio and will be a key performer of its implementation. Will work with the Customer to enhance and broaden the current efforts, as well as identifying new modalities of interest. Understanding how to deploy components of a Quantum System into the Space Environment is a...

Description SAIC is seeking an organized and motivated Senior Mechanical Engineer who is looking for an opportunity to grow with our company as we continue to expand our support in the modernization and development of various Common Aviation Command and Control System (CAC2s) designs as well as supporting production activities out of our Charleston, SC office. The ideal candidate should have experience supporting various projects at all levels showcasing leadership qualities and attributes, as well as project management skills. The candidate should have the ability to discuss projects they have supported and/or led. Candidate should be able to self-manage/self-direct projects, and communicate regularly with customers, engineers, logisticians, and technicians. Job Duties: Must be able to lead multiple high-profile projects which involve interfacing with the customer to define key test requirements, sourcing and interfacing with multiple suppliers / vendors,...

Description SAIC is seeking an organized and motivated Senior Mechanical Engineer who is looking for an opportunity to grow with our company as we continue to expand our support in the modernization and development of various Marine Air Defense Integration Systems (MADIS) designs as well as supporting production activities out of our Charleston, SC office. The ideal candidate should have experience supporting various projects at all levels showcasing leadership qualities and attributes, as well as project management skills. The candidate should have the ability to discuss projects they have supported and/or led. Candidate should be able to self-manage/self-direct projects, and communicate regularly with customers, engineers, logisticians, and technicians. Job Duties: Must be able to lead multiple high-profile projects which involve interfacing with the customer to define key test requirements, sourcing and interfacing with multiple suppliers / vendors, establishing...

Description SAIC is seeking an experienced and detail-oriented Test and Evaluation (T&E) Contractor Support Lead to oversee the planning, execution, and reporting of comprehensive test and evaluation activities in direct support of government programs and systems. The T&E Contractor Support Lead will serve as the primary contractor technical authority for all testing efforts, providing expert support to government stakeholders and ensuring that systems, products, or capabilities meet defined requirements, performance standards, and operational objectives. This role requires strong technical expertise, leadership skills, and the ability to effectively interface with government customers, program offices, and oversight organizations while managing a contractor test team. Key Responsibilities: Government Stakeholder Interface & Support Serve as the primary contractor point of contact for all T&E-related activities with government program offices, test...

Description SAIC is seeking a Senior Service Validation and Testing (SVAT) Administrator in Colorado Springs, CO. The Senior Service Validation and Testing (SVAT) Administrator acts as the gatekeeper for IT quality assurance, ensuring that all proposed changes, updates, and new systems meet stringent operational and security standards before entering the production environment. Rooted in ITIL service management principles, this role manages the Test and Integration Laboratory (TIL) and leads the evaluation of system hardening, performance metrics, and configuration compatibility. The incumbent bridges the gap between engineering and operations, guaranteeing that new deployments do not introduce vulnerabilities or instability into the enterprise IT infrastructure. Principal Duties and Responsibilities Service Validation & Testing Lifecycle. Designs, executes, and oversees comprehensive test plans for software patches, system upgrades, and new technology...