Ontology Scrum Master (TS/SCI) Vantor ServicesOntology Scrum Master (TS/SCI)Herndon, VirginiaWorking closely with ontology engineers, software developers, data engineers, database engineers, UX designers, and Government stakeholders, the Product Owner ensures the delivery of secure, scalable, and mission-focused solutions that enable semantic interoperability, knowledge management, and advanced analytics. Certified Scrum Product Owner (CSPO), Professional Scrum Product Owner (PSPO), SAFe Product Owner/Product Manager (POPM), PMI Professional in Business Analysis (PMI-PBA), or equivalent Agile product management certification.
Ontology Scrum Master (TS/SCI) MaxaarOntology Scrum Master (TS/SCI)Herndon, Virginia$143,000–$157,300 / yearWorking closely with ontology engineers, software developers, data engineers, database engineers, UX designers, and Government stakeholders, the Product Owner ensures the delivery of secure, scalable, and mission-focused solutions that enable semantic interoperability, knowledge management, and advanced analytics. Certified Scrum Product Owner (CSPO), Professional Scrum Product Owner (PSPO), SAFe Product Owner/Product Manager (POPM), PMI Professional in Business Analysis (PMI-PBA), or equivalent Agile product management certification.
NewApplication Developer Belay TechnologiesApplication DeveloperFort Meade, MD$164,000–$200,000 / yearSeveral factors influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, education, specific skills and competencies and certifications. Salary Range: $164,000 to $200,000 Belay Technologies is a certified Service-Disabled Veteran-Owned Small Business located in Columbia, Maryland (Baltimore/Washington area).
Mid/Senior-Level Front-End Developer Belay TechnologiesMid/Senior-Level Front-End DeveloperAnnapolis Junction, MD$190,000–$240,000 / yearSeveral factors influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, education, specific skills and competencies and certifications. Efforts will include enhancing section 508 accessibility of the current TESTFLIGHT interface as well as redeveloping a new frontend to incorporate section 508 accessibility capabilities in a new user interface.
NewJunior Graph Data Engineer Redhorse CorporationJunior Graph Data EngineerArlington, VAOntological Alignment Support: Collaborate with senior engineers to align discovered data elements from local systems to the shared Enterprise Core Ontology and specialized Domain Ontologies, with particular attention to compatibility with established institutional frameworks (e.g., DIA’s DIKEM). Semantic Control Plane Maintenance: Help maintain and optimize the Enterprise Semantic Map within enterprise graph database platforms so human analysts, applications, and autonomous AI agents can efficiently search, navigate, and discover resources.
AI & Decision Engineer Johns Hopkins Applied Physics LaboratoryAI & Decision EngineerLaurel, MarylandFull timeDescription: The Systems Performance Analysis Group (KBS) at the Johns Hopkins University Applied Physics Laboratory is seeking a Generative AI & Decision Engineer to design, build, and deploy AI-enabled analytical and decision-support applications for Naval and Air Force sponsors. Design, implement, and manage RAG pipelines using vector databases and frameworks to integrate relevant documentation, prior analytical results, and large information repositories into LLM decision-making.
ME00622-Software Engineer 1 Momentum Engineering OpeningsME00622-Software Engineer 1Annapolis JunctionBachelor's degree in Computer Science or a related technical discipline from an accredited college or university Four (4) additional years of directly related Software Engineering experience may be substituted in lieu of the degree requirement. The ideal candidate is a motivated software engineer with experience developing secure, scalable applications, collaborating directly with customers to refine requirements, and contributing throughout the full software development lifecycle.
Java Software Engineer – Spring Boot & Kubernetes LeidosJava Software Engineer – Spring Boot & KubernetesAnnapolis Junction, MarylandThis is an exciting opportunity to help transform a traditional Java application into a modern architecture utilizing Spring Boot, Angular, Docker, Kubernetes, RESTful APIs, relational databases, and modern DevSecOps practices . July 31, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Senior Java Software Engineer LeidosSenior Java Software EngineerAnnapolis Junction, MarylandWorking alongside experienced software engineers, you'll develop Spring Boot services, build RESTful APIs, optimize relational databases, and contribute to Kubernetes deployments and CI/CD automation. If you're passionate about backend engineering, modern Java development, scalable architectures, and continuous improvement, you'll find challenging technical work, a collaborative engineering culture, and the opportunity to make a meaningful impact.
Software Engineer (TS/SCI cleared) Johns Hopkins Applied Physics LaboratorySoftware Engineer (TS/SCI cleared)Laurel, MarylandFull timeExperience with relational databases (Microsoft SQL Server, MySQL, Postgres, SQL etc.) and non-relational databases (MongoDB, CouchDB, HBase etc.) in the areas of query optimization, database design, and scalability. The Threat Analytic Systems (QAI) Group wants talented staff who can work as part of a team to design, implement, test, document, and maintain software applications that provide highly impactful capabilities.
Software Engineer Johns Hopkins Applied Physics LaboratorySoftware EngineerLaurel, MarylandFull timeExperience with relational databases (Microsoft SQL Server, MySQL, Postgres, SQL etc.) and non-relational databases (MongoDB, CouchDB, HBase etc.) in the areas of query optimization, database design, and scalability. The Threat Analytic Systems (QAI) Group wants talented staff who can work as part of a team to design, implement, test, document, and maintain software applications that provide highly impactful capabilities.
NewGraph Data Engineer Redhorse CorporationGraph Data EngineerArlington, VASuccess in this role requires strong hands-on engineering skills and a systems-thinking mindset: the ability to reason about how data pipelines and tool integrations affect the broader enterprise architecture, search and discovery, and downstream agentic research workflows — and to make and defend design decisions that others will build on. Ontological Alignment: Lead the alignment of discovered data elements from local systems to the shared Enterprise Core Ontology and specialized Domain Ontologies, with particular attention to compatibility with established institutional frameworks (e.g., DIA’s DIKEM).
Software Engineer Accenture Federal ServicesSoftware EngineerReston, VAThe pay range for the states of California, Colorado, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Virginia, Washington, and the District of Columbia, and the city of Cleveland is: $103,800—$192,300 USD What We Believe As a company wholly dedicated to serving the US federal government, we bring together the best talent to help reinvent how federal agencies operate and deliver greater value for their mission and the American people. As required by local law, Accenture Federal Services provides reasonable ranges of compensation for hired roles based on labor costs in the states of California, Colorado, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Virginia, Washington, and the District of Columbia, and the city of Cleveland .
NewData Engineer BigBear.aiData EngineerMcLean, VARemoteThis position focuses on reliable ingestion and transformation-turning heterogeneous legacy inputs (APIs, feeds, databases, files, and event streams) into consistent, high-quality signals that downstream scoring and adjudication workflows can trust. Please note the targeted compensation range is provided as an estimate, and any actual compensation offer may vary depending on the needs of the company, or an applicant's skillset, competencies, experience, education, certifications, location, or other factors.
QA Automation Engineer (Remote) Archesys IncQA Automation Engineer (Remote)Baltimore, MDRemoteRigorous Testing & Quality Assurance: Architect and implement robust automated testing suites, writing comprehensive unit and integration test cases to ensure high code stability and prevent regressions. AI-Assisted Engineering: Embrace and comfortably leverage Agentic AI-assisted development tools to accelerate software delivery, automate testing boilerplate, and maximize day-to-day engineering velocity.
Full Stack Engineer GuidehouseFull Stack EngineerBethesda, MarylandThe ideal candidate has deep hands-on experience across Node.js/Express, Angular/TypeScript, MongoDB, PostgreSQL/Oracle, and Elasticsearch, with extensive Selenium-based test automation and mature, security-conscious DevOps and data-pipeline practices. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.
Microsoft Security Engineer SkyePoint DecisionsMicrosoft Security EngineerLaurel, MarylandSkyePoint Decisions is a leading Cybersecurity Architecture and Engineering, Critical Infrastructure and Operations, and Applications Development and Maintenance IT service provider headquartered in Dulles, Virginia with operations across the U.S. We provide innovative enterprise-wide solutions as well as targeted services addressing the complex challenges faced by our federal government clients. Salary at SkyePoint is determined by various factors, including but not limited to location, work schedule, the candidate’s combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability, market data and business considerations.
Software Engineer Hire HangarSoftware EngineerColumbia, MarylandThis role sits at the intersection of backend data infrastructure and front-end visualization, supporting a product that ingests high-volume social and web data in real time and visualizes complex network relationships. The ideal candidate is comfortable working across graph databases, streaming data pipelines, and modern front-end frameworks, and thrives in a fast-moving, early-stage engineering environment.
AWS Systems Engineer GuidehouseAWS Systems EngineerDc, District of ColumbiaStrong experience with core AWS services, including EC2, VPC, IAM, S3, EBS/EFS, RDS, Elastic Load Balancing, KMS, CloudWatch, CloudTrail, and backup/disaster recovery services. This role requires a highly technical, hands-on cloud engineering professional capable of designing, implementing, and supporting secure AWS environments in mission-critical enterprise environments.
Software Engineer VTGSoftware EngineerMcLean, VirginiaFull timeThe Software Engineer may analyze and design databases within an application area, coordinate database development as part of a team, and support the design, development, deployment, maintenance, testing, and quality assurance of websites and web applications. Analyzes user and business needs, develops software solutions, and designs or customizes software to optimize operational efficiency.