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Sr. Marklogic Developer

LeidosSilver Spring, MDL6 LeadSeptember 15th, 2026
Overview In this Sr. MarkLogic Developer role, you will build and maintain MarkLogic-based applications within mission-critical systems, delivering Agile DevOps support. You’ll design and implement data-centric solutions across Java, XQuery, and MarkLogic stacks, while shaping cloud-enabled environments. You’ll lead development across the full SDLC in a SAFe-enabled agile setting, driving performance and reliability for national security-focused platforms. This is a hands-on role with meaningful impact in a high-stakes domain. Compensation / BenefitsPaid Time Off11 paid Holidays401K with 6% company matchFlexible SchedulesDiscounted Stock Purchase PlansTechnical Upskilling, Education and Training Support ResponsibilitiesDesign and develop MarkLogic integrations with existing enterprise platformsCreate XQuery, JavaScript, and REST modules on the MarkLogic stackDevelop entity models and work with HTML/CSS/JavaScript/Java/Angular/Python/SpringBoot/Hibernate in applicationsImplement software validation and testing using JUnit and KatalonAutomate deployment and support the Agile SDLC following SAFe practicesCoordinate infrastructure needs driven by software to meet mission requirementsContribute to architecture, scope estimation, and design across major deliverables Key requirements4+ years hands-on development with the MarkLogic frameworkStrong analytical/design skills translating requirements to technical designsSignificant experience with service-oriented architecturesSolid understanding of OO design and design patternsExperience implementing MarkLogic Java Client API in enterprise appsProficiency with XQuery, FLWOR, JavaScript, MarkLogic, SPARQL, RDF data, XML, and XML processingSignificant Java experience including data processing/querying (SQL/NoSQL)Bachelor with 8+ years or Master with 6+ years of relevant experience; work experience in lieu of a degree acceptedTS/SCI with polygraph requiredAnalytical thinkingStrong communicationCollaboration and teamworkMarkLogicXQueryJavaScript