Leidos is seeking an experienced Senior Java Developer to support the National Healthcare Safety Network (NHSN) Support program to design, develop, and maintain healthcare applications and data integration solutions supporting public health surveillance and healthcare data exchange.
Candidate MUST:
Be a US Citizen or Green Card holder currently located in the UNITED STATES for the current three consecutive years with the ability to obtain a Public Trust Clearance.
Please be advised that during the interview, you will be required to keep your camera on, and your interviewer will be taking your picture for identification purposes if an offer letter is extended to you
The ideal candidate will possess strong Java development skills and hands-on experience with HL7 healthcare interoperability standards, particularly Clinical Document Architecture (CDA). Responsibilities include implementing and maintaining healthcare data interfaces, processing and validating clinical documents, troubleshooting complex integration issues, and supporting application modernization initiatives.
The candidate will collaborate with technical teams, healthcare subject matter experts, and customer stakeholders to deliver reliable, scalable, and standards-compliant software solutions.
Job Responsibilities:
- Independently design and implement complex Java-based healthcare integration solutions.
- Interpret HL7 CDA specifications and translate healthcare data requirements into technical designs.
- Troubleshoot complex data exchange, validation, and interoperability issues.
- Conduct code reviews and mentor junior and mid-level developers.
- Collaborate effectively with healthcare SMEs, business analysts, QA, and customer stakeholders.
- Identify opportunities to improve application architecture, maintainability, and automated testing.
Required Qualifications:
- Bachelor's degree in Computer Science, Software Engineering, Information Technology, or related field, with equivalent experience considered.
- 8+ years of professional software development experience, with strong proficiency in Java.
- Experience with Quarkus, Spring Framework, RESTful APIs, and enterprise application development.
- Hands-on experience implementing or supporting healthcare data exchange using HL7 standards, particularly HL7 CDA.
- Experience parsing, validating, transforming, and processing CDA XML documents.
- Strong knowledge of XML, XSD, XPath, and related XML processing technologies.
- Experience designing and implementing interfaces between healthcare information systems.
- Experience with relational databases, SQL, and data mapping/transformation.
- Experience with Git, CI/CD, automated testing, debugging, and Agile development practices.
- Ability to analyze complex technical problems and independently design and implement solutions.
- Experience implementing and troubleshooting Schematron rules for HL7 CDA document validation.
- Experience transforming CDA documents into target XML structures and validating output accuracy through automated XML comparison and regression testing.
- Experience performing root-cause analysis of production integration failures, analyzing application logs, database records, and implementing monitoring, health checks, and alerting.
- Ability to manage differences across CDA implementation guide versions and maintain backward compatibility as healthcare reporting requirements evolve.
Recommended Qualifications:
- Experience interpreting and implementing HL7 CDA implementation guides and associated conformance requirements.
- Familiarity with Consolidated Clinical Document Architecture (C-CDA) and structured clinical documents.
- Knowledge of HL7 FHIR resources, REST APIs, and healthcare interoperability architectures.
- Understanding of clinical terminology, healthcare workflows, and electronic health record (EHR) systems.
- Experience integrating with EHR systems such as Epic, Oracle Health/Cerner, or other healthcare platforms.
- Familiarity with SNOMED CT, LOINC, ICD-10-CM, and other clinical coding systems.
- Experience with electronic public health reporting, including NHSN, electronic case reporting, or healthcare-associated infection surveillance.
- Experience with healthcare interface engines such as Rhapsody, Mirth Connect (NextGen Connect), or InterSystems.
- Experience with Azure cloud services, microservices, and containerized applications.
- Experience modernizing legacy healthcare applications or migrating healthcare interfaces to modern architectures.
- Experience using AI-assisted development tools to improve development efficiency, testing, and code quality.
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If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:October 29, 2026For 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.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Skills Required
- Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field; equivalent experience may be considered
- 8+ years of professional software development experience
- Strong proficiency in Java
- Experience with Quarkus, Spring Framework, RESTful APIs, and enterprise application development
- Hands-on experience implementing or supporting healthcare data exchange using HL7 standards, particularly HL7 CDA
- Experience parsing, validating, transforming, and processing CDA XML documents
- Strong knowledge of XML, XSD, XPath, and related XML processing technologies
- Experience designing and implementing interfaces between healthcare information systems
- Experience with relational databases, SQL, and data mapping or transformation
- Experience with Git, CI/CD, automated testing, debugging, and Agile development practices
- Ability to analyze complex technical problems and independently design and implement solutions
- Experience implementing and troubleshooting Schematron rules for HL7 CDA document validation
- Experience transforming CDA documents into target XML structures and validating output through automated XML comparison and regression testing
- Experience performing root-cause analysis of production integration failures using application logs and database records
- Experience implementing monitoring, health checks, and alerting
- Ability to manage differences across CDA implementation guide versions and maintain backward compatibility
- US citizenship or Green Card holder status
- Currently located in the United States for the previous three consecutive years
- Ability to obtain a Public Trust clearance
- Experience interpreting and implementing HL7 CDA implementation guides and conformance requirements
- Familiarity with C-CDA and structured clinical documents
- Knowledge of HL7 FHIR resources, REST APIs, and healthcare interoperability architectures
- Understanding of clinical terminology, healthcare workflows, and EHR systems
- Experience integrating with Epic, Oracle Health/Cerner, or other healthcare platforms
- Familiarity with SNOMED CT, LOINC, ICD-10-CM, and other clinical coding systems
- Experience with electronic public health reporting, NHSN, electronic case reporting, or healthcare-associated infection surveillance
- Experience with healthcare interface engines such as Rhapsody, Mirth Connect, or InterSystems
- Experience with Azure cloud services, microservices, and containerized applications
- Experience modernizing legacy healthcare applications or migrating healthcare interfaces to modern architectures
- Experience using AI-assisted development tools for development, testing, and code quality
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
