Senior Agentic Software Engineer Mitre CorpSenior Agentic Software EngineerMcLean, VA$129,200–$161,500 / yearRoles & Responsibilities: MITRE is seeking a Senior Agentic Software Engineer to design, build, secure, and operate mission-focused software systems and data platforms using state-of-the-art agentic and AI-enabled software development techniques. Cloud-native operations depth across Kubernetes and IaC/multi-cloud, with strong observability (tracing/logs/agent telemetry, audit logging/Splunk) and MLOps/model serving (hosting, gatewaying, rate/cost controls, monitoring).
Software Engineering - Senior Engineer FICOSoftware Engineering - Senior EngineerAshburn, VirginiaExperience must include four (4) years of experience, which may be concurrent, in all of the following: 1) Automation architect and framework design, including defining and driving test automation strategies across complex projects and across organizations; employing high skill with design, development, and maintenance of test automation for UI, API (REST and gRPC), DB, Integration, and E2E testing. 8) Developing and implementing new engineering processes, tools, and technologies, and rolling them out across engineering organizations for adoption, including communicating and working with leaders and executives across organizations to present innovations, sharing of knowledge, and provide status.
NewSenior AI Engineer / Software Developer - TS/SCI with Polygraph General Dynamics Information TechnologySenior AI Engineer / Software Developer - TS/SCI with PolygraphChantilly, VirginiaTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
Principal Engineer Ion Storage SystemsPrincipal EngineerBeltsville, MD$174,000–$191,000 / yearFull timeResponsibilities: Work collaboratively with the team to support the existing prototype line, identifying the key levers to drive optimal process reliability, quality, and uptimeLead root-cause investigations for difficult or ambiguous equipment and process failures, and drive corrective/preventive actions to closure. As a Principal Engineer, you'll take ownership of significant workstreams - leading equipment builds, troubleshooting efforts, and process improvements end-to-end - while mentoring other engineers and raising the technical bar across the team.
Senior AI Software Engineer Dark Wolf SolutionsSenior AI Software EngineerChantilly, VA$130,000–$170,000 / yearYou will work directly on integrating open-source and proprietary models, fine-tuning workflows, constructing RAG (Retrieval-Augmented Generation) applications, and deploying secure software in multi-cloud environments. AI Models: Practical experience fine-tuning Large Language Models (LLMs) and Small Language Models (SLMs).
Senior Embedded Software Engineer Two Six TechnologiesSenior Embedded Software EngineerHerndon, VAFull timeBachelor's degree in Computer Science, Electrical Engineering, or a related technical field; in place of a degree, comparable professional experience or a strong portfolio of relevant technical projects and coursework will be considered. Minimum of 5 years of experience in one of the following fields: embedded software, security tooling, emulation, or CNO development (this may be satisfied through professional roles, significant academic research, or demonstrable project-based experience).
Senior AI Native Software Engineer Remitly, Inc.Senior AI Native Software EngineerArlington, VA$180,000–$225,000 / yearSince 2011, we''ve tirelessly delivered on our promise to customers sending money globally, providing secure, simple, and reliable ways to manage their money, ensuring true peace of mind. If that''s you and you''re ready to do the most meaningful work of your career-we invite you to join over 2,800 passionate Remitlians worldwide who are united by our vision to transform lives with trusted financial services that transcend borders.
NewSenior .NET Developer/Application Engineer - Project Software Engineer III Deloitte Touche Tohmatsu LtdSenior .NET Developer/Application Engineer - Project Software Engineer IIIMcLean, VA$95,600–$188,400 / yearAs a Project Software Engineer III on the Engineering as a Service team, you will design, develop, integrate, and sustain enterprise applications supporting Dynamics 365, Power Platform, and Azure-based solutions in addition to delivering secure, scalable APIs, integrations, and customizations while supporting application modernization and operational excellence. The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.
Senior Software Quality Development Engineer (SDET) The Nuclear CompanySenior Software Quality Development Engineer (SDET)WashingtonWe expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. The Nuclear Company is seeking a Senior Software Quality Engineer to help ensure the quality, reliability, traceability, and compliance of Nuclear Operating System (NOS), the software platform supporting one of the largest nuclear construction programs in the United States.
Program Director La Jolla Logic, IncProgram DirectorWashington, DC$180,000–$230,000 / yearThe Program Director will work closely with the program''s Chief Engineer or principal software architect to achieve this; however, the individual must possess sufficient technical depth and systems-level understanding to lead a highly technical integration program, challenge assumptions, understand architectural and interface dependencies, evaluate technical and programmatic tradeoffs, and translate Government mission objectives into executable plans. This individual will be responsible for the successful execution and continued evolution of an enterprise ground integration framework that brings together Government, commercial, and satellite operations services, Ground Entry Points (GEPs), space vehicle providers, mission applications, infrastructure, and other ground capabilities into a cohesive and interoperable enterprise.
Principal Software Engineer Jcd StaffingPrincipal Software EngineerBethesda, Maryland$160,000–$165,000 / yearCompensation: $160,000.00 - $165,000.00 per year JCD Staffing is a specialized staffing and consulting firm, focused on working with highly talented technical individuals to provide our clients with a unique, successful hiring experience. The senior software engineer engages directly with IT management, development teams, technical delivery teams, and vendors to ensure the successful design, development, and delivery of technology-based solutions.
Principal Software Engineer, Data Architecture MasterCardPrincipal Software Engineer, Data ArchitectureArlington, VA$195,000–$323,000 / yearAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Extensive experience architecting and building large-scale data platforms, distributed systems, and enterprise integration solutions across both on-premises and cloud environments, leveraging technologies such as Spark, Kafka, Flink, NiFi, Hadoop/Cloudera, Databricks, and modern cloud-native data services.
Principal Software Engineer XometryPrincipal Software EngineerNorth Bethesda, MD$200,000–$225,000 / yearYou Would Be A Great Fit With: CAD/PLM Domain Expertise: Broad experience working within enterprise engineering software ecosystems (e.g., Dassault/SolidWorks, Autodesk, or similar major platforms). Xometry's digital marketplace gives manufacturers the critical resources they need to grow their business while also making it easy for buyers at Fortune 1000 companies to tap into global manufacturing capacity.
NewSr. Principal Software Engineer Clarity InnovationsSr. Principal Software EngineerHerndon, VirginiaClarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD) to transform data into actionable intelligence, ensuring mission success in an evolving world. They are adept at evaluating project requirements to choose the right tools for the job—whether deciding between compiled and scripted languages, breaking down complex features into actionable tasks, or engineering ingenious synchronization workflows for disconnected.
Principal Software Engineer- Hybrid Envision Innovative SolutionsPrincipal Software Engineer- HybridColumbia, MDBuilds and deploys multiple applications across diverse tech stacks, including containerized React UIs, Java and Go microservices, custom REST security services, and data stores such as MongoDB and an OpenSearch cluster. Since 2008, we have supported critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions.
Principal Engineer, Software (R5285) Shield AI IncPrincipal Engineer, Software (R5285)Washington, DC$220,000–$330,000 / yearHivemind consists of four products: EdgeOS (C++ based high-performance middleware for autonomy development), Pilot (autonomy for the edge built atop EdgeOS; a models-based, modular and open architecture C++ codebase), Forge (Shield AI's AI Factory for the design, development, and testing of Hivemind Edge systems; a service-oriented architecture leveraged through an SDK, CLI, and web portal; a Go, Python, Typescript codebase), Commander (Software and hardware to support rich human-in-the-loop and human-on-the-loop interactions with the Hivemind; a C++-based back-end for interaction with Pilot; and a web-application UI for mission planning, command and control by operators implemented in a Typescript/React codebase). Work closely with the technical leads of Hivemind Commander (mission planning, command and control, air-ground communications) and Hivemind Design (configurations, test and evaluation, rehearsal, analysis) to enhance the user experience of their products.
Principal Software Reverse Engineer STRPrincipal Software Reverse EngineerArlington, VA$204,000–$284,000 / yearReverse engineering complex software or firmware targets, ranging from typical Windows/Linux binaries to embedded firmware running non-traditional computer architectures and operating systems. Offers are based on factors, such as but not limited to, the candidate's experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.
Senior Principal Software Engineer – (Secret Clearance Preferred – Onsite Required) GD Information TechnologySenior Principal Software Engineer – (Secret Clearance Preferred – Onsite Required)Oakton, VirginiaThis challenging and interesting software engineering and development position is a chance to participate in the development and operation of a high-performance big data system, and join a longstanding, stable program consisting of a team of individuals using defined Agile software principles and practices. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.
Principal Signals Software Engineer Envision Innovative SolutionsPrincipal Signals Software EngineerColumbia, MD$190,000–$215,000 / yearAt least 12 years' experience as a Signals Software Engineer or equivalent on a project with a focus on Radio Frequency (RF) to include experience with Fourier transforms, filtering, communications theory, digital modulation, error control coding, signals analysis tools (e.g. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories.
Principal Software Escalation Engineer Palo Alto Networks IncPrincipal Software Escalation EngineerMcLean, VA$147,000–$237,500 / yearOwn the R&D Escalation Strategy: Act as the single accountable authority for technical escalations, replacing reactive "ping-pong" with a structured, predictive pipeline that restores delivery predictability to the sprint teams. Influence the Roadmap: Use data from the field (trends, escaped bugs, and friction points) to drive strategic roadmap decisions, ensuring we prioritize technical debt and usability improvements alongside new features.