Senior Software Engineer (C++ / Java) JobotSenior Software Engineer (C++ / Java)MONTGOMRY VLG, MD$165,000–$185,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. This role is ideal for a seasoned engineer who enjoys solving complex technical challenges, contributing to system architecture, and partnering closely with Systems Engineering, Development, and Test teams to deliver robust, scalable solutions.
Sr. Software Engineer JobotSr. Software EngineerGaithersburg, MD$140,000–$165,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.
NewSenior Software Engineer JobotSenior Software EngineerFalls Church, VA$150,000–$200,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Our client is a well-funded deep tech company headquartered in Northern Virginia, building a suite of autonomous software reliability and testing products.
Senior Telecom Software Engineer (TS/SCI clearance) System OneSenior Telecom Software Engineer (TS/SCI clearance)Herndon, VASupport Linux-based systems supporting telecommunications infrastructure by ensuring high availability, performance, and reliability, supporting environments on CentOS 7 transitioning to Rocky Linux. • Monitor and analyze telecommunications systems, interpret inbound data streams, and utilize packet capture tools like Wireshark and tcpdump to troubleshoot core network issues.
NewPrincipal Solution Architect - Healthcare System OnePrincipal Solution Architect - HealthcareReston, VA$98.48 / hourAbility to deliver high level design use cases demonstrating clear conceptual architecture, simple, logical explanation of data movement, rationale behind integration choices, and distinction between solution architecture vs. Candidates must be able to deliver high level use cases, demonstrating how they would design an architectural approach for a business scenario — explaining conceptual data flows (“move data from here to here and why”) and high level integration choices.
Senior Principal Software Engineer Rocket SoftwareSenior Principal Software EngineerWashington, DCRemote$124,500–$168,075 / yearYou will collaborate with customers, engineering teams, sales, and product management teams to ensure our offerings deliver robust protection, highly reliable, performant, operationally simple, and highly secure. Key modernization initiatives will include: + Embedding generative and predictive AI to enhance predictable operational outcomes, build workflow processes, and effectively integrate automation into enterprises.
Radio Frequency Software Engineer Principal - 1660 Global InfoTek, Inc.Radio Frequency Software Engineer Principal - 1660Reston, VARemote$100,000–$240,000Certifications in software engineering, computer science, or related fields (e.g., Certified Software Development Professional (CSDP); Certified Secure Software Lifecycle Professional (CSSLP); Red Hat Certified Engineer (RHCE); C++ Certified Professional Programmer (CPP); Professional Software Developer Certification (PSD); etc.). The candidate will lead a small team of senior software engineers, coordinate closely with the program technical lead and AI/ML researchers to drive Cyber Operations software from prototype to production-quality, resource-efficient components deployable on tactical edge hardware.
Principal Software Engineer Bigbear.aiPrincipal Software EngineerColumbia, MarylandFull timeEngineer will work closely with mission stakeholders to analyze software requirements, design innovative technical solutions, develop software applications, and implement high-performance capabilities supporting advanced mission objectives. About BigBear.ai: BigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity.
Principal Software Engineer Xometry IncPrincipal Software EngineerNorth Bethesda, MD$200,000–$225,000 / yearXometry'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. Operational Excellence: You will own the reliability and security of the integration microservices, ensuring that "click-to-buy" functionality is bulletproof and that monitoring/alerting covers the unique lifecycle of enterprise PLM transactions.
Principal Software Engineer AMETEK IncPrincipal Software EngineerGermantown, MDThe ideal candidate is a hands-on engineer with a proven track record designing and delivering complex embedded systems that acquire and process video data while generating highly accurate, deterministic control signals with microsecond-level timing requirements. In this onsite role in Germantown, Maryland, you will help lead the software architecture and development of a new medical technology platform while contributing to the continued evolution of the established RETeval product portfolio.
Principal Software Engineer / Tech Lead Leidos Holdings IncPrincipal Software Engineer / Tech LeadArlington, VA$131,300–$237,350 / yearImplement software release version control, provide release management support throughout a software product's life cycle (initial software development through promotion to Test, QA and Production Environments), ensuring the consistency and reliability of software builds. This effort is building a modern Secure Web Service (SWS) operation on a cutting‑edge, highly automated platform designed to support a rapidly expanding customer base.
Principal Software Engineer, SIEM Ruby/Rails Huntress Labs IncPrincipal Software Engineer, SIEM Ruby/RailsDCRemoteAs a Principal Software Engineer at Huntress, you will be responsible for leading a feature delivery team in the design, development, and high-quality release of software features for the Huntress SIEM Platform that provides for automated detection and human-powered threat hunting. Collaborate closely with the team engineering manager, product manager, security research, platform, and architect on strategic initiatives and technical designs.
Senior Principal Cyber Software Engineer (iOS) Nightwing Intelligence SolutionsSenior Principal Cyber Software Engineer (iOS)Sterling, Virginia$122,000–$253,000 / yearThe team comprises engineers of multiple disciplines including vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, system engineering, and data analytics. Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to join our team to solve real-time cyber challenges, working on site with our end users in their spaces.
Principal Software Engineer, Full Stack JSI TelecomPrincipal Software Engineer, Full StackChantilly, VA$95,000–$225,000Actual compensation will be determined based on a variety of factors, including, but not limited to, the seniority level (junior, intermediate or senior) at which the position is filled, education, relevant work experience, industry experience, technical skills, certifications, and internal equity. Possess extensive application development experience, and software engineering and architecture expertise using multiple program languages (e.g., C, C++, C#, ASP.Net, Java, JavaScript, SQL, jQuery, XML, Perl, YAML, and JSON).
NewPrincipal Software Engineer – Supply Chain Technology Blue OriginPrincipal Software Engineer – Supply Chain TechnologySpace Coast, Washington$230,773–$323,081.85 / yearand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
NewPrincipal Software Engineer - Dataplane & Edge Infrastructure Blue OriginPrincipal Software Engineer - Dataplane & Edge InfrastructureBay Area, Washington$290,709–$406,991.55 / yearand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
Principal Software Engineer GliaCell TechnologiesPrincipal Software EngineerLaurel, MD$200,000–$280,000 / yearWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.
Principal Software Engineer Zoominfo Technologies IncPrincipal Software EngineerBethesda, MD$163,800–$257,400 / yearAbout the Role: We are seeking an experienced Principal Software Engineer to lead the design and development of ZoomInfo''s customer-facing GraphQL API platform, built on top of our industry-leading Go-to-Market (GTM) data assets. What You''ll Do: Architect, design, and own the end-to-end development of ZoomInfo''s customer-facing GraphQL APIs, ensuring high availability, low latency, and developer-friendly experiences.
Principal Software Engineer (Partial Telework) GliaCell TechnologiesPrincipal Software Engineer (Partial Telework)Columbia, MD$200,000–$280,000 / yearWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. The team builds 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.
Principal Software Engineer (AI - Assisted Developer Tooling) GliaCell TechnologiesPrincipal Software Engineer (AI - Assisted Developer Tooling)Laurel, MD$200,000–$280,000 / yearWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. The role emphasizes AI-assisted IDE capabilities, automated code quality workflows, and experimentation with agentic and autonomous systems to support software development tasks.