65 applications architect jobs found

Job Title:  IT Security Specialist – Penetration Tester  Location:  Hybrid (Reside within a commutable distance of Silver Spring, MD to work onsite as required) Citizenship:  US Citizen  Security Clearance:  Moderate Public Trust       AttainX, Inc. is in search of a highly energetic Penetration Tester  to join our team on a cyber security program supporting our US federal government client.   Are you a seasoned penetration tester with a passion for uncovering vulnerabilities and securing complex systems? We’re looking for a highly skilled and experienced professional with a minimum of 5 years of proven expertise in penetration testing and ethical hacking to join our team. In this role, you’ll take a hands-on approach to identify, exploit, and report security weaknesses across diverse environments, including AWS, Azure, and on-premises infrastructure. Your work will directly contribute to fortifying critical systems and...

Overview We're looking for a Full Stack Software Engineer   with expertise across the frontend (React, TypeScript, CSS, HTML) and backend ( Node.js, Express.js,   OpenAPI , relational databases) stack to   join   our app team.   Working closely with product owners, designers, and fellow engineers, you'll iterate quickly on features, improve performance, and build out a secure, scalable platform for real-world military and government users. This role   focuses on   hands-on coding   and software design , spanning everything from UI workflows to   API development to database architecture . This role requires an active Secret security clearance.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed....

Description Position Overview The Senior GCP Architect serves as the principal technical authority and platform strategist across the DOT enterprise cloud ecosystem. Operating within OST Shared Services, this role provides technical governance and architectural oversight for independent GCP development teams. The candidate is responsible for reviewing and approving architectural changes, enforcing zero-trust landing zone patterns, and engineering an enterprise Continuous Authorization to Operate (ATO) framework across Commercial, FedRAMP Moderate, and FedRAMP High Assured Workloads enclaves. Key Responsibilities GCP Enterprise Architecture & IaC Blueprinting Design, maintain, and govern multi-folder GCP landing zones using Assured Workloads for FedRAMP Moderate and FedRAMP High compliance boundaries. Enforce organizational policies, data residency constraints, and CMEK governance via Cloud KMS. Maintain clear technical boundaries separating OST Shared...

Position Summary Odyssey Systems has an exciting opportunity for a Senior Systems Engineer  providing support to the Air Force Life Cycle Management Center/PEO Electronic Systems Directorate (AFLCMC/ES).  The Air Force Program Execution Office for PEO Electronic Systems (AFPEO/ES) has the collective Air Force Materiel Command (AFMC) mission responsibility to manage and execute the modernization, development, testing, production, fielding, and sustainment of the PEO ES portfolio, which includes over 130 programs for the United States Air Force (USAF) and foreign allies. AFLCMC/PEO ES is headquartered at Hanscom Air Force Base, MA with geographically separated operating units CONUS and OCONUS.   This is a full time Hybrid position located at Hanscom Air Force Base, MA. *Position Contingent Upon Position Award* Responsibilities Duties include, but not limited to:  Support engineering activities across all phases of the...

Position Summary Odyssey Systems has an exciting opportunity for a Senior Systems Engineer  providing support to the Air Force Life Cycle Management Center/PEO Electronic Systems Directorate (AFLCMC/ES).  The Air Force Program Execution Office for PEO Electronic Systems (AFPEO/ES) has the collective Air Force Materiel Command (AFMC) mission responsibility to manage and execute the modernization, development, testing, production, fielding, and sustainment of the PEO ES portfolio, which includes over 130 programs for the United States Air Force (USAF) and foreign allies. AFLCMC/PEO ES is headquartered at Hanscom Air Force Base, MA with geographically separated operating units CONUS and OCONUS.   This is a full time Hybrid position located at Hanscom Air Force Base, MA. *Position Contingent Upon Position Award* Responsibilities Duties include, but not limited to:  Support engineering activities across all phases of...

Description SAIC is seeking a Cloud Computing Engineer to serve as a senior DevSecOps engineer supporting mission systems operating in DoD IL5 and higher environments. This role will lead the design, implementation, and sustainment of secure, automated software delivery pipelines and cloud infrastructure for critical national security customers, with a focus on AWS services (including AppStream 2.0) and integration with Keycloak. The Cloud Engineer acts as a technical leader and subject matter expert, partnering with government stakeholders, solution architects, cyber, and development teams to deliver scalable, resilient, and compliant AWS solutions in development, test, and production environments. Key Responsibilities include: serve as the senior DevSecOps/Cloud engineer for AWS-based solutions in IL5+ and classified environments. Define cloud-native architectures, deployment patterns, and CI/CD strategies aligned with customer mission, DoD Cloud Computing SRG, and RMF...

Description SAIC is seeking Security Control Assessor/Representatives (SCA/Rs) to lead security control assessments across high-priority projects. Working at the intersection of cybersecurity engineering, cloud architecture, and DevSecOps prototyping, you will evaluate security controls for cutting-edge AI/LLM technologies across multiple classification levels. This position is ideal for a pragmatic cloud assessor or SCAR who excels in fast-paced DevSecOps environments, understands AWS cloud security, and is eager to shape the cybersecurity posture of next-generation DoD AI capabilities. This position will be based out of Arlington, VA. Additional responsibilities include: Key Responsibilities Execute formal SCA/R duties. Lead security assessment efforts, establishing reusable security playbooks and assessment frameworks for rapid AI deployment into enterprise workflows. Evaluate technical control effectiveness across AWS cloud infrastructure,...

Description SAIC is seeking a Senior Principal Cybersecurity Engineer to support critical Navy communication systems within the DoD. This role is ideal for a hands-on security professional with deep engineering expertise, offensive security experience, and a proven track record finding vulnerabilities, and securing classified and high-security environments. You will serve as a key technical expert collaborating with engineers, program managers, and government personnel to deliver secure, resilient strategic systems. This role is fully ON-SITE in San Diego, CA. Must be local to area. Up to 10% travel involved. JOB DUTIES: Plan and execute penetration test exercises against systems, networks, and applications simulating real world environment. Perform network traffic analysis and threat detection using Wireshark and other offensive/defensive security tools. Architect and harden IT systems, virtualized environments, and network security devices in classified...

Description SAIC is seeking a Cloud Systems Engineer to provide provision of Global Enterprise IT services, specifically focusing the design and management of the core cloud infrastructure. With a deep understanding of AWS & Azure service such as EC2/Azure Virtual Machines, VPC/Virtual Networks and S3/Storage accounts. In addition to these responsibilities, the Cloud Engineer create and maintain the foundational elements that support cloud applications and services. The Engineer is expected to deliver Tier 3 level support to SITEC 3 EOM mission partners. This critical support role involves the diagnosis, troubleshooting, and resolution of system outages, all while guaranteeing optimal service uptime and mission operational capabilities. The Cloud Systems Engineer is a pivotal role within our IT infrastructure team, providing tier three systems support in line with the SIE OPORD. This position demands a comprehensive understanding of government PAAS, SAAS coupled with...

Description SAIC is seeking a Cloud Systems Engineer to provide provision of Global Enterprise IT services, specifically focusing the design and management of the core cloud infrastructure. With a deep understanding of AWS & Azure service such as EC2/Azure Virtual Machines, VPC/Virtual Networks and S3/Storage accounts. In addition to these responsibilities, the Cloud Engineer create and maintain the foundational elements that support cloud applications and services. The Engineer is expected to deliver Tier 3 level support to SITEC 3 EOM mission partners. This critical support role involves the diagnosis, troubleshooting, and resolution of system outages, all while guaranteeing optimal service uptime and mission operational capabilities. The Cloud Systems Engineer is a pivotal role within our IT infrastructure team, providing tier three systems support in line with the SIE OPORD. This position demands a comprehensive understanding of government PAAS, SAAS coupled with...

Description The SAIC Vanguard 2025 Program currently has an opening for a Senior Network Engineer supporting the Dept. of State (DoS) Diplomatic Technology (DT) Network Operations (NO) division. This position primarily supports operations and maintenance of foreign post network integrations with the DoS Core and other network integrations comprising a large and complex network infrastructure and cloud environments, with engineering and design responsibilities as warranted. This program provides transparent, interconnected systems and security supporting the DoS in successfully carrying out its U.S. foreign policy mission. DT provides enterprise architecture design, engineering, operations and maintenance support services for desktops, servers, networks, firewalls, cloud infrastructure, and enterprise applications across the Department. The SAIC Vanguard 2025 Program provides comprehensive IT support consisting of the Department's servers, network devices, network perimeter...

Description The SAIC Vanguard 2025 Program currently has an opening for a Senior Network Engineer supporting the Dept. of State (DoS) Diplomatic Technology (DT) Network Operations (NO) division. This position primarily supports operations and maintenance of foreign post network integrations with the DoS Core and other network integrations comprising a large and complex network infrastructure and cloud environments, with engineering and design responsibilities as warranted. This program provides transparent, interconnected systems and security supporting the DoS in successfully carrying out its U.S. foreign policy mission. DT provides enterprise architecture design, engineering, operations and maintenance support services for desktops, servers, networks, firewalls, cloud infrastructure, and enterprise applications across the Department. The SAIC Vanguard 2025 Program provides comprehensive IT support consisting of the Department's servers, network devices, network perimeter...

Description SAIC is seeking a Senior Principal Cybersecurity Engineer to support critical Navy communication systems within the DoD. This role is ideal for a hands-on security professional with deep engineering expertise, offensive security experience, and a proven track record finding vulnerabilities, and securing classified and high-security environments. You will serve as a key technical expert collaborating with engineers, program managers, and government personnel to deliver secure, resilient strategic systems. This role is fully ON-SITE in San Diego, CA. Must be local to area. Up to 10% travel involved. JOB DUTIES: Plan and execute penetration test exercises against systems, networks, and applications simulating real world environment. Perform network traffic analysis and threat detection using Wireshark and other offensive/defensive security tools. Architect and harden IT systems, virtualized environments, and network security devices in classified...

Description The Air Force, Space & Intelligence Business Group of SAIC is seeking an Enterprise Architect to support the Modernization Division of the Joint Communication Support Element (JCSE) at MacDill Air Force Base (MAFB) in Tampa, Florida. SAIC provides strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. The successful candidate works on high-visibility or mission critical aspects of a given program and performs all functional duties independently; oversees the efforts of less senior staff and/or is responsible for the efforts of all staff assigned to a specific job . Responsibilities: Conduct continuous technology assessments and market surveys to identify COTS and GOTS solutions applicable to JCSE modernization requirements. Conduct Analyses of Alternatives (AoA) that evaluate candidate systems for security posture, SWaP...

Overview LMI is seeking a Full Stack Software Engineer to join the team supporting IronGate, a mission-ready data acquisition and transfer platform built for complex federal environments. It enables agencies to securely acquire commercial data and bring it into government networks through a self-service UI portal or direct-to-network push with full visibility, governance, and compliance at every step. You’ll work across the stack—from Angular  and  Reactr -based UI workflows to Node/Express APIs and PostgreSQL data models—helping us deliver secure, scalable capabilities that support cyber threat detection, asset protection, and operational decision-making.     You’ll collaborate closely with product owners, designers,  DevSecOps , and fellow engineers to iterate quickly on features, modernize existing components, and shape the future architecture as we incorporate technologies like Spark, Hudi, Elasticsearch, and Kong. This is a hands-on...

Overview LMI is seeking an Information Assurance Specialist to support Army Acquisition, Training, and Readiness (AT&R) in the sustainment and enhancement of the Army Contract Writing System (ACWS). ACWS is built on the Appian Platform. This role will support cybersecurity, compliance, risk management, and system authorization activities to help ensure ACWS meets applicable Army and DoD security requirements.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.    Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space,...

Description SAIC is seeking two experienced Information Systems Security Engineers (ISSEs) to support the MAJESTIC Joint Program Office (JPO) -one serving as a traditional enterprise ISSE and one serving as a specialized Edge ISSE focused on tactical-edge environments. Together, these engineers will lead advanced security engineering and architecture efforts for MAJESTIC's mission-critical systems, including those operating in distributed, low-bandwidth, intermittently connected, and operationally constrained mission scenarios. The Enterprise ISSE will design, develop, implement, and validate security architectures for MAJESTIC's core systems and enterprise environments, ensuring security controls are integrated throughout the full engineering lifecycle-from requirements and high-level architecture through deployment, sustainment, modernization, and ATO maintenance. The Edge ISSE , leveraging the job functions described in ISSE_Edge, will engineer cybersecurity...

Description SAIC is seeking an experienced Information Systems Security Engineer (ISSE) to support the MAJESTIC Joint Program Office (JPO) by performing advanced security engineering and architectural design for mission-critical IT systems. In this role, the ISSE will lead the design, development, implementation, and validation of security architectures , ensuring all security controls are integrated into system engineering processes across the full lifecycle-from requirements development to deployment and sustainment. The ISSE will collaborate closely with program leadership, system owners, developers, ISSMs/ISSOs, enterprise architects, and cybersecurity operations teams to ensure systems meet federal security requirements, including NIST 800-53, RMF, and customer-specific A&A frameworks such as ICD 503 and DAAPM. This role requires on-site support in Springfield, VA . Key Responsibilities: Design and engineer secure system architectures, integrating...

Description SAIC is seeking a skilled and motivated ServiceNow Developer to join our team in support of an enterprise IT environment. The primary focus of this role is on the design, development, implementation, and enhancement of ServiceNow workflows and capabilities to address complex business and operational needs. The successful candidate will be responsible for developing custom modules, maintaining platform configurations, integrating ServiceNow with other enterprise systems, and ensuring adherence to best practices and security standards. This role involves collaboration with cross-functional teams, including stakeholders, system administrators, and process owners, to design scalable solutions that improve business processes, enable automation, and enhance operational efficiency. The ServiceNow Developer will work in a fast-paced, mission-critical environment to deliver innovative solutions that align with organizational goals. All work must be performed on-site in...

Description SAIC is seeking a Systems Engineer for the Cloud team to support an IT Service Management effort for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6). The successful candidate initiates, supervises, and/or develops requirements from a project's inception to conclusion for complex to extremely complex programs; Provides strategic advice, technical guidance and expertise to program and project staff; Provides detailed analysis, evaluation and recommendations for improvements, optimization development, and/or maintenance efforts for client-specific or mission critical...