Principal Software Engineer

The Principal Software Engineer at ATPCO takes a central role in shaping software solutions and designing reliable applications. Based in Herndon, this position calls for strong technical leadership and a thorough grasp of software development and design principles. Role overview This engineer leads complex projects from the earliest planning stages through deployment. The role includes architecting software, setting technical direction, and ensuring the team delivers high-quality results. Key responsibilities Work closely with cross-functional teams to gather and define technical requirements Mentor junior developers and support their professional growth Promote best practices in coding and design throughout the team Contribute to improvements in product functionality and performance Requirements Extensive experience in software development and application architecture Proven ability to lead projects from concept to deployment Strong understanding of design principles and coding standards Experience collaborating with diverse technical and business teams

At Clarity Innovations, we are a dedicated national security partner committed to safeguarding our nation’s interests. We deliver innovative solutions that empower the Intelligence Community (IC) and the Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in a rapidly changing world.Our mission-driven software and data engineering platform modernizes data operations through advanced workflows, continuous integration/continuous deployment (CI/CD), and secure DevSecOps practices. We tackle challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, enabling comprehensive solutions that drive significant operational impact.We are passionate about delivering state-of-the-art tools and capabilities that confront the most complex national security challenges, providing our partners with the means to stay ahead of emerging threats and ensuring the success of their critical missions. At Clarity, we prioritize our people and strive to be a destination employer for top talent, fostering an environment where innovation flourishes, careers advance, and individuals are respected. Join us as we continue to lead innovation and address the most pressing challenges in national security.Position OverviewThis role is part of a dynamic team at the cutting edge of developing crucial components for a next-generation distributed cyber network operations platform, offering novel solutions to the challenges faced by cyber missions at scale. You will play a key role in contributing to the core messaging framework that facilitates intra-platform orchestration. Your contributions will include designing and implementing microservices developed in Python and Go, containerized with Docker images and deployed within a Kubernetes cluster. A successful developer in this role will possess a wide array of experiences, including secure networking practices such as implementing mTLS at both the application and service-mesh layer, utilizing gRPC for intra-process communications, and debugging GraphQL APIs. This position also provides unique opportunities for engagement with our customers and end-user groups to help refine and enhance functionality.The ideal candidate will take pride in their work and strive for excellence in all endeavors. They are motivated by challenges and actively seek out complex problems that push them beyond their comfort zone. They understand that the mission we support transcends any one individual and has a profound impact on our country’s national security. Our team dynamic is relational, humble, and dedicated to excellence. We take responsibility for our mistakes promptly, consider how our work affects the personal lives of our teammates, and refuse to settle for mediocrity.

Clarity Innovations delivers mission-driven software and data engineering for the Intelligence Community and Department of Defense. The company specializes in transforming complex data into actionable intelligence, focusing on information warfare, cyber operations, operational security, and data structuring. Based in Herndon, VA, Clarity Innovations encourages innovation and career growth for its team members. Role overview The Principal AI Engineer joins the AI Enablement Team to advance the operationalization, security, and maturity of artificial intelligence capabilities within the Joint Development Environment (JDE) and other operational platforms. This position focuses on building and maintaining the AI path-to-production, ensuring the technical stack remains stable and scalable for a range of mission environments and development spaces supporting cyber tools and capabilities. The main project centers on establishing a unified AI infrastructure, providing consistent access to models and inference through a single, evolving AI run stack. Key responsibilities Operationalize and secure AI capabilities within JDE and additional environments. Build and maintain the AI path-to-production for mission-critical tools. Ensure the AI technical stack is scalable and stable across multiple operational and development spaces. Support integration of AI models and inference for various cyber capabilities. Work with the AI access platform to centralize API management and streamline workflows. Project focus This initiative delivers a unified interface for AI model access, supporting both local open-source models and cloud-managed models such as AWS Bedrock and Azure OpenAI. The aim is to integrate AI tools and frameworks into user workflows, from general content creation to advanced AI-driven development. The Principal AI Engineer helps simplify and centralize AI access and management for users. Location Herndon, VA (On-site) Experience level 6-10 years of experience Security clearance TS/SCI required

Accenture Federal Services seeks a Custom Software Engineer in Herndon, VA to help build secure, scalable systems that support US government missions. This position combines technical leadership with hands-on software development, working closely with AI and data teams to deliver practical solutions for defense, national security, public safety, and health projects. What you will do Technical leadership and architecture: Shape the design and development of backend systems and event-driven APIs, primarily using FastAPI. Code quality and reviews: Take part in code and technical design reviews to uphold standards for quality, performance, and security. AI model deployment: Collaborate with data scientists and machine learning engineers to integrate, containerize, and deploy AI/ML models, such as natural language processing, recommendation engines, and generative AI, into production environments. Containerization and orchestration: Build applications for cloud deployment, using Kubernetes for container orchestration. Asynchronous processing and distributed systems: Design systems that use asynchronous processing and task queues (including Celery, RabbitMQ, or Kafka) to manage long-running or unreliable tasks outside the main API. This role focuses on both technical depth and collaboration, offering the chance to work alongside professionals in AI, data, and engineering. The environment values code quality, security, and scalable design.

Clarity Innovations stands as a trusted partner in national security, committed to protecting our nation's interests while delivering inventive solutions that empower the Intelligence Community (IC) and the Department of Defense (DoD). Our mission is to transform data into actionable intelligence, ensuring mission success in an ever-changing landscape.Our mission-first software and data engineering platform modernizes data operations by harnessing advanced workflows, CI/CD, and secure DevSecOps practices. We tackle challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, facilitating end-to-end solutions that generate significant operational impact.We are devoted to providing state-of-the-art tools and capabilities to address the most intricate national security challenges, enabling our partners to stay ahead of emerging threats and ensuring the success of their critical missions. At Clarity, we prioritize our people and aim to be the destination for top talent, fostering an environment where innovation flourishes, careers develop, and individuals are respected. Join us as we lead innovation and confront the pressing challenges of national security.

The Director of Software Engineering will lead a team of talented engineers in the development and enhancement of software solutions that drive innovation within ATPCO. This role requires a strategic mindset along with hands-on technical expertise to oversee the full software development lifecycle, ensuring that our technology stack remains cutting-edge and effective. You will collaborate with cross-functional teams to align engineering initiatives with business goals and mentor engineers to foster their professional growth.

KDA Consulting is a distinguished Disabled Veteran, Woman-Owned, and Certified Disadvantaged Small Business. Our diverse team is dedicated to addressing the critical challenges in National Defense and Intelligence through innovative IT solutions. We prioritize collaboration and are committed to delivering projects efficiently, on schedule, and within budget.We are actively looking for a Senior Software Engineer to join our talented team and provide vital support to our government partners.Key Responsibilities and Required Experience: Proven engineering expertise with core Microsoft Windows platforms and services, particularly MECM. Proficient in managing Server, Workstation, and Software upgrades using MECM. Hands-on experience with Windows 10, DNS, DFS, and DHCP. Expertise in Active Directory administration, including software deployment and Group Policy (GPO) management. Excellent verbal communication and documentation abilities. Familiarity with Security Development Operations (SecDevOps) in iterative development projects. Strong understanding of Agile development methodologies. Microsoft Azure certifications, showcasing capabilities in cloud design, implementation, and configuration. Proficiency in modern programming languages (e.g., Java, C, C++, C#, Python, Perl) or automation through PowerShell scripting. Preferred Qualifications: Expert candidates with a minimum of 11 years of relevant experience are encouraged to apply. A Bachelor's Degree is required; a Master’s Degree is preferred. Experience with Security Development Operations (SecDevOps) and Agile methodologies. Microsoft Azure certifications for cloud design and implementation. Knowledge of modern programming languages or automation with PowerShell. Requirements: Active TS/SCI + Full Scope Poly U.S. Government Security Clearance is mandatory. Education and Experience: Minimum of 11 years of relevant work experience with a Bachelor’s Degree, or 9 years with a Master’s Degree. Ability to maintain confidentiality and discretion. Strong interpersonal skills for networking and building professional relationships. Excellent organizational skills with the ability to prioritize tasks effectively.

Software Test EngineerLocation: Herndon, VAJob Overview:At Cinteot, we prioritize our employees and are dedicated to providing a variety of career opportunities aimed at enhancing personal growth and agility. Our flexible work schedules, competitive compensation, and extensive benefits empower our staff to lead healthy and fulfilling lives both professionally and personally.We are currently looking for a Full-Time Software Test Engineer to join our dynamic team in Herndon, VA. In this role, you will collaborate with a talented group of 3-5 developers to create mission-critical software solutions utilized globally. You will also engineer innovative solutions to address complex customer challenges. The ideal candidate will possess a solid understanding of software development principles, software design practices, and database structures.Security Clearance Requirement:Applicants must be U.S. Citizens and will be required to obtain a government security clearance. This position is based at a facility that necessitates special access.

Join us at usm2 as a C++ Software Engineer, where you will play a critical role in developing and maintaining high-performance applications. You will collaborate with a team of talented engineers to design innovative solutions that meet our client's needs. This position is perfect for individuals who thrive in a dynamic environment and seek to make a significant impact through their work.

Join our dynamic team at LanceSoft, Inc. as a Software Engineer specializing in System Analysis and Programming. In this role, you will collaborate with cross-functional teams to analyze system requirements and develop high-quality software solutions. Your expertise will contribute to the design, implementation, and maintenance of software systems that enhance operational efficiency.

About Clarity Innovations Clarity Innovations supports national security by building solutions for the Intelligence Community (IC) and Department of Defense (DoD). The company’s platform modernizes data operations with advanced workflows, CI/CD, and secure DevSecOps practices. Teams address challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, delivering end-to-end solutions that strengthen mission outcomes. Clarity values its people and aims to be a destination employer for top talent. The company fosters a culture where innovation grows, careers advance, and every individual is respected. Role Overview The Principal Platform Engineer will join a team prototyping a system to integrate, manage, and maintain a "Hardware In the Loop" (HWIL) system within an existing development network. This role involves regular collaboration with customers to iterate and refine platform capabilities, ensuring alignment with their objectives. As a senior DevOps engineer on this project, responsibilities include establishing foundational CI/CD pipelines, providing architectural design guidance, and leading the system’s CI/CD design. The engineer will also develop solutions for integrating and managing hardware in the current environment. What You Will Do Develop a CI/CD system for a new initiative that integrates and manages hardware within an existing development environment. Build high-quality software focused on user requirements, with a commitment to delivering functional products on schedule. Implement and integrate automated testing into the product’s codebase. Support the delivery and deployment of operational capabilities. Requirements Must possess and be able to obtain and maintain at least a Secret security clearance (only U.S. citizens are eligible). Location Herndon, VA

Join Northstrat as a Software Engineer and be part of a dynamic team that thrives on innovation and excellence. In this role, you will develop robust software solutions that drive our projects forward and contribute to our mission of delivering cutting-edge technology solutions.

Join KDA Consulting as a Senior Software Engineer specializing in Big Data technologies. In this pivotal role, you will lead the design and implementation of cutting-edge data processing systems that drive strategic insights and innovation. Collaborate with a talented team to develop scalable and efficient solutions that meet the needs of our diverse clientele.

Join our dynamic team as a Java Software Engineer, where you will play a pivotal role in advancing mission-critical geospatial intelligence systems for a federal client. This long-term project is dedicated to modernizing and maintaining platforms that empower users to efficiently submit, search, and manage geospatial and imagery data across diverse networks.The program employs cutting-edge Agile and DevSecOps methodologies, emphasizing collaboration, automation, and operational reliability. As a key member of a scrum team, you will engage in designing, developing, testing, and supporting innovative software solutions that directly contribute to national security missions.

BlackSky seeks a Lead Software Engineer for its Ground & Control Services team. This position focuses on building autonomous software that manages and monitors a satellite constellation. The work spans high-speed tasking, ground and space telemetry, health monitoring, and low-latency connections with ground stations around the world. The software you help create will tie hardware-level interfaces to cloud-based microservices, supporting systems that keep satellites safe, responsive, and efficient with minimal human oversight. Role overview This role involves designing and developing mission-critical systems that operate 24/7. The team’s software enables real-time control and monitoring, requiring careful attention to safety, precision, and testability. The position is open to candidates in Seattle, WA, Herndon, VA, or remote in select states. What you will do Develop autonomous software for satellite control and monitoring Implement solutions for high-speed tasking and health monitoring Connect hardware-level interfaces to cloud microservices Support low-latency communications with global ground stations Contribute to systems that must operate reliably with minimal human intervention Requirements Initiative and ownership in tackling complex technical challenges Curiosity about autonomous and mission-critical systems Discipline to trace, validate, and challenge requirements as needed Commitment to safety, precision, and testability in software Experience with both low-level and cloud-based technologies Strong collaboration and communication skills BlackSky values a people-first, customer-centric culture. The team welcomes candidates who are humble, focused, and eager to contribute to a shared mission.

Join our dynamic team at dstaff as a Principal Threat Analysis Engineer. In this vital role, you will leverage your expertise to identify, analyze, and mitigate potential threats to our systems and data. Your contributions will be crucial in ensuring the security and integrity of our technology infrastructure.Your responsibilities will include conducting comprehensive threat assessments, collaborating with cross-functional teams, and developing innovative security solutions. You will be at the forefront of protecting our organization against evolving cyber threats.

At Clarity Innovations, we are dedicated to protecting our nation's interests through innovative solutions that empower the Intelligence Community (IC) and the Department of Defense (DoD). We transform data into actionable intelligence, ensuring mission success in a rapidly changing world.Our mission-first software and data engineering platform revolutionizes data operations by employing advanced workflows, continuous integration/continuous deployment (CI/CD), and secure DevSecOps practices. We tackle challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, creating end-to-end solutions that yield significant operational impact.We pride ourselves on delivering state-of-the-art tools and capabilities that confront the most complex national security challenges, enabling our partners to stay ahead of emerging threats and guaranteeing the success of their critical missions. At Clarity, we prioritize our people and strive to be a destination employer for top talent, fostering an environment where innovation flourishes, careers advance, and individuals are valued. Join us in our mission to lead innovation and address pressing national security challenges.Company OverviewClarity Innovations is a technology firm committed to equipping clients with the capabilities and support necessary for conducting intelligent and effective cyber operations. We achieve this by attracting the brightest engineers and operators across the nation, presenting them with some of the most challenging problems faced by the U.S. government, and nurturing their creativity and problem-solving skills. Our standard is excellence, and our metric is mission success.RoleAs a Principal Cyber Network Operations Engineer, you will be the technical leader responsible for developing and integrating specialized cyber tools within our core platform. This position requires a "player-coach" approach, where you will oversee the implementation of intricate CNO features while ensuring their seamless integration with both the platform infrastructure and the end-user workflow. You will act as the primary technical resource for CNO tool lifecycle management, from initial prototyping to final integration for users.ResponsibilitiesDevelopment & CNO IntegrationLead the creation of high-performance CNO tools using programming languages such as C, Python, and Go, ensuring they are optimized for compatibility with our platform.Drive the integration of CNO tools, focusing on how backend capabilities connect with the broader platform architecture to facilitate reliable delivery and execution.Conduct reverse engineering using tools like Ghidra, IDA, or Binary Ninja to inform tool development and integration processes.

Join StemXpert as a Release & Build Engineer, where you will play a critical role in our software development lifecycle. You will be responsible for designing, implementing, and managing the release and build processes to ensure efficient and reliable software delivery. This position involves collaborating with cross-functional teams to streamline operations, troubleshoot issues, and maintain high standards of quality.

Clarity Innovations stands as a reliable partner in national security, committed to protecting our nation's interests and providing innovative solutions that empower the Intelligence Community (IC) and the Department of Defense (DoD) in converting data into actionable intelligence, ensuring mission success in an ever-changing landscape.Our mission-driven software and data engineering platform revolutionizes data operations, leveraging advanced workflows, Continuous Integration/Continuous Deployment (CI/CD), and secure DevSecOps practices. We tackle challenges in Information Warfare, Cyber Operations, Operational Security, and Data Structuring, enabling comprehensive solutions that yield significant operational impact.We are dedicated to delivering state-of-the-art tools and capabilities that confront the most intricate national security challenges, empowering our partners to remain ahead of emerging threats and guaranteeing the effectiveness of their critical missions. At Clarity, we prioritize our people and strive to be a preferred employer for top talent, fostering an environment where innovation flourishes, careers flourish, and individuals are respected. Join us as we continue to spearhead innovation and address the most urgent challenges in national security.As a Principal Information System Security Engineer (ISSE) at Clarity, you will work closely with team members and developers, spearheading security innovation and implementation across projects and the overall security posture of Clarity. This role involves crafting technical solutions to support the establishment and maintenance of Authorization to Operate (ATO) packages and their related artifacts. We seek a passionate information security professional who excels at being at the forefront of groundbreaking ideas (Classified Cloud, CI/CD, etc.) and possesses a desire to learn and implement automated, cutting-edge practices.*This is a hybrid position requiring part-time presence in Herndon, Virginia.

Join Reinventing Geospatial (RGi), a premier authority in geospatial solutions tailored for Defense, Intelligence, and Federal clients. Our mission is to enhance situational awareness for military personnel and analysts by fusing software development with geospatial intelligence. Our projects encompass a wide spectrum from data collection to advanced deep learning, utilizing state-of-the-art tools such as Python, Java, and ArcGIS. At RGi, we prioritize building dynamic teams of exceptional performers and leaders who drive immediate results. Our culture thrives on innovation and is fueled by individuals who operate at the intersection of passion and performance. Here, you will collaborate with visionary thinkers, harness cutting-edge technology, and confront significant challenges from your very first day. Our vibrant culture is anchored by three core pillars: Energy: We infuse our work with passion, purpose, and urgency.Edge: We take initiative, embrace growth, and challenge our limits.Execution: We achieve smart, decisive outcomes that deliver real results. If you are a proactive individual who thrives in a fast-paced environment and is eager to make a tangible impact, we invite you to join our team. Clearance:Active Top Secret clearance with the capability to obtain SCI access and a willingness to pursue a CI Polygraph.US Citizenship Required.