Lead Model-Based Systems Engineer

Quartermaster AI develops AI and robotics systems focused on ocean safety and sustainable management. The team creates distributed open-ocean platforms that allow vessels to sense, compute, and communicate, supporting maritime domain awareness in critical situations. Role overview The Principal Platform Systems Engineer - Test Automation Lead sets the foundation for reliable development across cloud infrastructure, edge computing, and hardware-in-the-loop (HIL) testing. Reporting to the Head of Platform, this role supports the hardware, machine learning, and robotics teams as they deploy in demanding maritime environments. Success in this position requires a systems generalist who is comfortable with AWS pipelines, lab automation, and embedded edge devices. What you will do Design and manage HIL and software-in-the-loop (SIL) test environments, automating lab workflows and hardware bring-up to ensure thorough regression testing. Develop and maintain deployment pipelines with custom release gating for embedded and edge platforms, including NVIDIA Jetson, to support reliable hardware-dependent software updates. Build internal tools and simulation or replay pipelines to accelerate and stabilize development cycles for robotics and ML teams. Implement observability across lab and edge deployments, and provide technical leadership on architecture, standards, and quality controls across teams. Requirements Minimum 10 years in systems or platform engineering, developer experience (DevEx), or embedded infrastructure, with a record of results in startup-like settings. Strong background in Linux systems engineering, networking, and troubleshooting production environments for containerized and reproducible systems. Direct experience with hardware interfaces such as UART, SPI, I2C, CAN, low-level device communication, and integrating lab instrumentation into automated test frameworks. Familiarity with NVIDIA Jetson, software-defined radio (SDR) or RF validation, or deploying AI/ML workloads at the edge in maritime or similarly challenging environments. Benefits Competitive salary and performance-based bonuses Health insurance and wellness programs 401k plan with company matching Generous paid time off and flexible hours Location: Arlington, VA

Join Systems Technology Research as a Software Test Lead, where you will spearhead the testing efforts for cutting-edge software solutions. You will collaborate with development teams to ensure quality and performance standards are met, while also mentoring junior testers and contributing to the continuous improvement of testing processes.

Role Overview:Join Quartermaster AI as an RF Test and Calibration Engineer, where you will leverage your extensive technical expertise and hands-on experience with advanced radio systems. Your role will focus on enhancing our calibration capabilities for antennas and radio systems, ensuring they meet the highest performance standards.You will be responsible for establishing a robust testing infrastructure at our headquarters and remote locations, and for integrating design-for-test requirements into our hardware development processes. Your insights into production RF test labs will be invaluable as you determine necessary resources, costs, and potential challenges at scale.

Join our innovative team at STR as a Principal Model-Based Systems Engineer (MBSE) in Arlington, VA (also available in Woburn, MA and Dayton, OH) and play a pivotal role across a diverse array of Department of Defense (DoD) mission areas. We seek a seasoned Systems Engineer with a proven track record in leading teams, architecting complex systems, and navigating the Systems Engineering Lifecycle, particularly in the realm of Digital Engineering and MBSE. You will be instrumental in supporting STR’s Systems Development Division by implementing robust processes and tools that ensure architectural integrity and traceability from requirements analysis through software development to production deployment.This role provides the unique opportunity to collaborate with leading experts in sensor development and cybersecurity, enhancing your expertise in MBSE tools and techniques. The ideal candidate will be well-versed in advanced Systems Engineering methodologies, Modeling and Simulation, and Digital Engineering/MBSE, with a passion for mentoring junior staff and nurturing the growth of subject matter expertise within the organization.As a Systems Engineer, you will not only model in SysML but also guide teams in leveraging customization and automation techniques through Cameo to ensure compliance with DoD Digital Engineering objectives. Proficiency in high-level programming languages such as C/C++, Java, or Python is highly desirable.You should have experience in implementing a rigorous MBSE approach for DoD systems development. As STR embarks on new programs, we are adopting agile methodologies that integrate model-based requirements management and traceability with software development. This position is ideal for a Systems Engineer with a software development background who is keen to enhance industry practices and showcase the benefits of MBSE.

At Two Six Technologies, we are at the forefront of innovation, crafting, deploying, and implementing cutting-edge solutions to address some of the most intricate challenges the world faces today. With a commitment to unparalleled collaboration and steadfast trust, we redefine possibilities, empowering our team and enabling our clients to create a safer global environment.Opportunity Overview:We are currently in search of a talented Principal Software Engineer to join our dynamic team. This role involves working on multi-domain platforms that support essential national security functions utilizing the latest modern frameworks. You’ll be instrumental in resolving complex challenges related to large-scale data investigation and analysis, facilitating real-time collaboration, managing tasks and resources, and summarizing and visualizing high-dimensional data to help non-experts tackle sophisticated inquiries. The right candidate will possess a robust technical background, outstanding leadership abilities, and a fervor for delivering top-tier software that adheres to the highest quality standards.The role is hybrid, requiring the selected individual to be present in our Arlington, VA office up to three days a week.Key Responsibilities:Lead the comprehensive technical strategy for distributed systems, encompassing architecture and framework selection, implementation, and optimization, while mentoring engineers and enforcing engineering best practices.Collaborate with technical leadership to enhance developer ergonomics, software quality, and security while upholding engineering policies.Boost operational efficiency by refining processes, implementing scalable solutions, and proficiently managing expectations through effective change management.Present technical and programmatic designs, roadmaps, and achievements to both internal and external stakeholders.Design and construct complex platform architectures, including distributed or decentralized topologies, scalable and efficient data infrastructure, APIs, message queuing and event streaming, secure authentication and authorization, as well as containerization and orchestration.Oversee the development team to deliver capabilities and integrations aligned with business goals.Take an active role in recruiting and mentoring junior engineers, aligning project tasks with their career aspirations.

Join Systems Technology Research as a Senior Software Engineer specializing in integration and testing. In this pivotal role, you will work collaboratively with cross-functional teams to design, implement, and validate complex software solutions that meet our clients' needs. Your expertise will drive the development of robust integration frameworks and testing strategies, ensuring quality and performance across our software products.

Join our dynamic team at Systems Technology Research as a Lead DevOps Engineer. In this pivotal role, you will spearhead the development and implementation of robust infrastructure and automation solutions that enhance our operational efficiency and support our innovative projects. You will collaborate closely with cross-functional teams to ensure seamless integration and deployment of applications, while driving continuous improvement in our DevOps practices.

Join Andworx as a Power Platform Technical Lead, where you will leverage your expertise in the M365 suite, including Microsoft Power Platform (Power Apps, Power Automate, Power BI), SharePoint Online, and advanced data management tools. This role supports our Department of Defense (DoD) clients and presents a unique opportunity to drive transformation within organizations through innovative M365 solutions.As a candidate, you will possess robust technical skills, enabling you to create visually appealing low-code/no-code solutions and develop rich data visualizations using the Microsoft Power Platform. You are a driven self-starter committed to continuous learning and skill enhancement.In this proactive and organized role, you will collaborate closely with business subject matter experts and key stakeholders to comprehend customer processes and objectives, delivering prompt and effective solutions. Your contributions will directly support customer leadership in business intelligence, reporting, and comprehensive business solutions.Note: This position requires a hybrid work arrangement, with two on-site days per week in Arlington, VA, and potential additional on-site days as requested by the customer. Candidates must reside within a commutable distance to Arlington, VA.

Join Our Team as a DevSecOps / Platform EngineerLocation: Arlington, VA — Full TimeAt Obviant, we're at the forefront of revolutionizing the defense sector with our innovative data solutions. As the defense market evolves, so too must the tools that drive it. We're on a mission to create a comprehensive data source of truth and cutting-edge AI tools aimed at enhancing defense acquisition processes. By integrating information from thousands of structured and unstructured sources, we deliver clarity and intelligence on budgets, programs, and organizations to facilitate informed decision-making.Our team is rapidly growing, fueled by strong backing from leading investors and veterans from the Department of Defense and national security sectors. We are united by a common belief that public sector missions are paramount, and we invite you to help us make a difference.Your ImpactAs a DevSecOps / Platform Engineer at Obviant, you will play a pivotal role in constructing and managing the foundational systems that drive our data ingestion pipelines and application infrastructure. You'll be engaged in cloud infrastructure, CI/CD processes, container orchestration, and security automation to ensure our platform remains reliable, scalable, and compliant with the unique requirements of defense users.This hands-on position demands a high level of ownership and collaboration. You will work closely with engineering, data, and product teams to build the infrastructure that supports rapid iteration and mission-critical workflows for government stakeholders. We value speed and simplicity, and aim to create scalable systems that drive operational success.

Systems Technology Research is seeking a talented and experienced Senior Systems Engineer to join our dynamic team in Arlington, VA. In this role, you will be responsible for designing, implementing, and optimizing complex systems and solutions that meet our clients' needs. You will collaborate with cross-functional teams and leverage your expertise to drive innovation and enhance system performance.

At Accenture Federal Services, we are dedicated to empowering the US federal government to enhance national strength and safety, along with improving the lives of its citizens. Our diverse team of over 13,000 professionals collaborates with various sectors including defense, national security, public safety, civilian services, and military health organizations to harness the transformative power of technology and innovation. Become a part of Accenture Federal Services, a pioneering technology company within the global Accenture network. We are proud to be ranked among Glassdoor’s Top 100 Best Places to Work, providing a supportive and collaborative environment where you can thrive and develop through hands-on experiences, certifications, and industry-specific training. Join us in our mission to instigate positive, sustainable change that propels governmental missions forward! As the Automation Lead, you will play a vital role in enhancing efficiency and innovation within our data platform. You will lead a specialized team tasked with developing core automation frameworks, continuous integration/continuous deployment (CI/CD) pipelines, and reusable templates that other engineering teams will utilize. This hands-on leadership position allows you to not only define the technical automation strategy but also actively contribute to the creation of foundational tools. Your goal is to eliminate manual tasks, uphold quality standards, and expedite the delivery of essential data capabilities.

Join our team at Systems Technology Research as a Lead Software Engineer. In this pivotal role, you will be responsible for leading a group of talented engineers to design, develop, and implement cutting-edge software solutions that meet our clients' needs. You will play a key role in shaping the technical direction of our projects and mentoring junior engineers.

Join Systems Technology Research as a Lead Mission Engineer (DevOps) in Arlington, VA. In this pivotal role, you will spearhead the development and implementation of innovative DevOps strategies that enhance our mission capabilities. You will collaborate with cross-functional teams to optimize deployment processes, ensuring efficient and reliable software delivery. Your expertise will be vital in streamlining operations and driving technological advancements within our projects.

Are you ready to revolutionize connectivity from space and make it universally accessible, secure, and actionable? Look no further!E-Space is at the forefront of bridging Earth and space, enabling large-scale deployments of Internet of Things (IoT) solutions and services. We are developing a cutting-edge low Earth orbit (LEO) space system that will transform the design, economics, manufacturing, and service delivery of traditional satellite and terrestrial IoT systems.Our mission is driven by intentionality, curiosity, and an unwavering commitment to innovate space-based communications. We aim to deliver actionable intelligence that will foster global economic growth, safeguard space and our planet, and enhance the quality of life for all.In your role as a Staff Automation Engineer, you will be pivotal in the industrial automation of our space products. This hands-on position will require you to collaborate closely with E-Space design engineers to procure, design, and implement an automated production system. Join us in Arlington, TX, and be part of a transformative journey!

Job DescriptionJoin Computer World Services Corp. (CWS) as a Lead Architect within our Systems/Enterprise Architecture Team. In this pivotal role, you will spearhead engineering initiatives in the National Capital Region (NCR) by planning, designing, testing, building, implementing, deploying, and transitioning cutting-edge Information Technology (IT) solutions tailored to meet diverse customer needs. You will ensure seamless transitions to innovative solutions that adhere to stringent security standards while providing vital operations and maintenance support for both development and test environments, as well as specialized assistance for mission-critical systems and applications. As the Lead Architect, you will serve as a trusted advisor to senior management, aligning project portfolios with strategic objectives, vision, and mission to drive organizational success.

Join STR as a Lead All-Source Analyst and Modeling Engineer, where your expertise in cyber-physical systems will drive innovative research and development. This role requires a passionate individual who thrives on solving complex challenges and can work collaboratively on-site in Arlington, VA. You will develop advanced tools to analyze extensive datasets, create detailed system models, and contribute to multi-disciplinary teams focused on enhancing national security through innovative cybersecurity solutions. Your ability to document, present, and demonstrate your research will be crucial.

About Our Team: The Real-time Architectures, Integration, and Demonstration (RAID) Group specializes in the transition of cutting-edge algorithms from conceptual phases to real-time software applications. We provide expert knowledge in open architecture systems and facilitate the integration of advanced capabilities for experimentation, testing, and deployment. Your Role: As a Principal Software Engineer, you will spearhead technical teams developing sophisticated real-time software for advanced RF sensor systems. You will design software solutions that meet open architecture standards, oversee the transition of algorithms from conceptual stages to real-time execution, and provide mentorship to junior engineers. Key Responsibilities: Lead technical teams in the architecture, development, and deployment of real-time RF sensor software derived from various sources. Transform advanced algorithms from MATLAB/Python prototypes into optimized production-ready C/C++ implementations within open architecture frameworks. Enhance software performance for real-time, resource-constrained systems with stringent latency requirements. Design communication infrastructures and data flows for distributed processing systems. Oversee comprehensive open system integration efforts, including hardware-in-the-loop testing, ensuring seamless integration across distributed architectures, external systems, and hardware platforms. Conduct design and code reviews, perform technical risk assessments, and ensure software compliance with open architecture standards. Mentor and provide technical guidance to junior and mid-level engineers. Prepare technical reports, create briefings, and present findings to sponsors and senior management. Collaborate with customers, program managers, and stakeholders to establish technical requirements. Lead proposal development efforts, including defining technical approaches, estimating costs, and drafting white papers. Work closely with algorithm developers, systems engineers, RF hardware engineers, and integration teams across various programs. Stay abreast of emerging technologies and best practices in real-time software development. Support approximately 20% travel for customer meetings, integration events, and field demonstrations. Who You Are: Possess an active clearance at the Secret level with the ability to obtain and maintain a Top Secret security clearance, requiring U.S. citizenship as mandated by the U.S. government. Hold a BS, MS, or PhD in Computer Science, Computer Engineering, Electrical Engineering, or a related discipline with a minimum of 5-10+ years of relevant experience.

About RabotRabot specializes in developing cutting-edge vision AI solutions tailored for warehouse packing operations. Our innovative system utilizes cameras to monitor packing lines, while our advanced software identifies inefficiencies and provides operators with real-time feedback, significantly enhancing productivity. Our clients value the measurable improvements we bring to their operations.As a venture-backed organization with partnerships among leading industry players, our proven product is ready for further development. We are seeking talented engineers to advance our real-time systems to the next level.The RoleIn this role, you will be responsible for developing and optimizing the software that powers our hardware systems. This includes managing the real-time pipeline involving cameras, on-device AI models, video processing, and edge computing, creating a seamless interface between the physical environment and our AI technology.You will collaborate closely with our hardware engineering team to enhance the entire perception and processing stack. Your focus will be on ensuring low latency and high reliability, as these systems operate in dynamic warehouse environments rather than controlled data centers.Candidates should possess a minimum of 3 years of relevant experience. We prioritize your achievements and the performance of your projects over the specific companies where you have worked.This position is based in Arlington, TX and is not available for remote work.

About UltraViolet Cyber UltraViolet Cyber delivers unified security operations for organizations facing complex cyber threats. Founded by experienced security professionals, the company blends advanced technology with hands-on expertise to provide real-time solutions that connect red and blue team operations. Clients include Fortune 500 companies, federal agencies, and commercial organizations. Headquartered in McLean, Virginia, UltraViolet Cyber also operates in the U.S. and India, aiming to make advanced cybersecurity widely available. Role Overview: Principal Security Engineer (Zscaler SME) This Arlington, VA-based position focuses on supporting large federal clients as a Zscaler Subject Matter Expert. The Principal Security Engineer works closely with network and security teams to deliver reliable, efficient, and high-performing Zscaler deployments. What You Will Do Oversee deployment and operational support for the Zscaler product suite, including ZPA, ZIA, ZDX, and ZCC. Update documentation as network designs change to keep records accurate and useful. Collaborate with stakeholders to test systems and validate performance. Ensure application migrations align with security and performance requirements. Location Arlington, VA