Principal Software Engineer

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.

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.

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.

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 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.

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.

Join Redhorse Corporation as a Cyber Software Developer and become a vital part of our innovative team dedicated to enhancing cybersecurity solutions. In this role, you will design, develop, and implement software that strengthens our defense systems against emerging threats. Collaborate with cross-functional teams to create robust applications that meet the highest standards of security and performance.

clarityinnovates is hiring a Senior Platform Engineer in Herndon, VA. This position plays a key role in building and maintaining the core technology infrastructure that supports daily operations. Responsibilities Design, develop, and maintain scalable platform solutions that address business requirements Collaborate with teams throughout the company to integrate new technologies effectively Apply best practices to system architecture and software development Provide guidance to team members on optimizing system performance Contribute to the delivery of reliable, high-quality products Collaboration This role involves frequent work with cross-functional teams to ensure technology solutions support company objectives and run efficiently.

SECURITY CLEARANCE: TS/SCI with Polygraphs (VA)POSITION: Senior Cloud EngineerREQUISITION: AWSMSA-02.111924LOCATION: Herndon, VirginiaJOB DESCRIPTION:As a Senior Cloud Engineer, you will be responsible for designing and implementing cutting-edge features using AWS Cloud with CDK. You will collaborate with our team to build new functionalities and ensure seamless integration with existing systems while maintaining the highest security standards and adhering to best practices.TECHNICAL CAPABILITIES:• Proven experience as a software developer with a strong background in Full-Stack development for enterprise applications.• 3-5+ years of UI/UX design experience.• 2-3+ years of back-end development experience.• Proficiency in back-end languages such as Java, Python, GO, SQL, and/or C++, and front-end languages including JavaScript, TypeScript, HTML, and CSS.• Expertise in front-end frameworks such as React or Vue.• Familiarity with container technologies and AWS services.• Experience in using software management tools like GitLab, GitHub, or similar.• Understanding of application security requirements for Springfield, VA clients.• Skilled in developing AWS infrastructure as code using AWS CDK for services like API Gateway, DynamoDB, Lambda, SQS, and SNS, along with a solid understanding of networking principles.• Hands-on experience in building and deploying capabilities as Infrastructure as Code (IaC), preferably with AWS CDK or CloudFormation.• Strong troubleshooting and problem-solving skills in development and production environments.QUALIFICATIONS:CERTIFICATION: Any AWS certification(s) are advantageous.EDUCATION & EXPERIENCE:• Bachelor's Degree in Computer Science or IT Engineering from an accredited institution, along with a minimum of 5 years of relevant experience.

Join our dynamic team at Radiant Infosystems Ltd. as a Test Engineer specializing in Singl.eView. In this role, you will be responsible for designing, implementing, and executing test plans to ensure the highest quality of our software solutions. You will collaborate with developers and stakeholders to identify issues and enhance product performance.

At Reinventing Geospatial (RGi), we are at the forefront of providing innovative geospatial solutions tailored for Defense, Intelligence, and Federal clientele. Our mission is to enhance situational awareness for military personnel and analysts by seamlessly integrating software development with geospatial intelligence. Our diverse portfolio ranges from meticulous data collection to sophisticated deep learning applications, utilizing advanced technologies such as Python, Java, and ArcGIS.We are not merely filling positions; we are cultivating teams of high achievers and influential leaders who make a significant impact from day one. Our culture thrives on innovation, driven by individuals who operate at the intersection of passion and performance. Join us to collaborate with visionary thinkers, leverage cutting-edge technology, and engage with meaningful challenges from the outset.Our workplace culture is anchored by three core pillars:Energy: We infuse our work with passion, purpose, and a sense of urgency.Edge: We take initiative, embrace opportunities for growth, and venture beyond our comfort zones.Execution: We deliver results smartly, decisively, and effectively.If you are an initiative-driven individual who thrives in a dynamic environment and is eager to make a tangible impact, we would love to have you on our team.Clearance:Must possess an active Top Secret clearance with the ability to obtain SCI access and a willingness to undergo a CI Polygraph.U.S. Citizenship is required.*This job posting is for a potential upcoming opening, and we encourage interested candidates to apply for future consideration.

Role overview Accenture Federal Services seeks a Full Stack Engineer in Herndon, VA. The role centers on designing and building software for federal clients. Projects support government agencies and require solutions tailored to specific needs. What you will do Develop and implement software across the full technology stack using modern tools Collaborate with engineers, designers, and cross-functional teams to deliver reliable solutions Contribute to projects that solve complex challenges for government clients Location This position is based in Herndon, VA.