Software Engineer

CI/CD JQuery PostGIS GraphQL Vuetify Equities Asciidoc Pipelines Leadership Statistics PostgreSQL Code Review Scalability Market Data RESTful API Tailwind CSS Communication Data Modeling Building Codes Data Pipelines Version Control Test Automation Problem Solving Data Governance Data Processing Ancient History Data Engineering Front End Design Spatial Computing Data Visualization Workflow Management Workflow Automation Software Engineering Software Development Relational Databases Application Security Technical Consulting Enterprise Analytics Business Requirements System Administration Software Architecture JavaScript Frameworks ArcGIS (GIS Software) Full Stack Development Technical Documentation Authorization (Computing) Applications Architecture SQL (Programming Language) D3.js (Javascript Library) Data-Driven Decision Making Vue.js (Javascript Library) Node.js (Javascript Library) React.js (Javascript Library) Python (Programming Language) Playwright (Software Testing) Software Development Life Cycle Troubleshooting (Problem Solving) JavaScript (Programming Language) Application Programming Interface (API), We are seeking a highly skilled Senior Software Engineer to design, develop, and maintain modern web applications. The ideal candidate combines expertise in full stack development, data visualization, and cloud-ready application architecture to deliver scalable solutions supporting data-driven decision making., * Design, develop, and maintain full stack web applications that enable users to explore and analyze complex statistical datasets.

• Build responsive, interactive data visualization tools using modern JavaScript frameworks and visualization libraries.
• Develop intuitive user interfaces that improve access to large public datasets through dynamic filtering, querying, and exploration capabilities.
• Design and optimize APIs and backend services supporting high-performance data delivery.
• Develop, maintain, and optimize large-scale data processing pipelines and automated workflows.
• Create and manage databases and data models supporting enterprise analytics and visualization platforms.
• Refactor legacy applications and workflows into scalable, maintainable, server-based architectures.
• Collaborate with product owners, subject matter experts, data providers, and stakeholders to translate business requirements into technical solutions.
• Apply software engineering best practices including automated testing, code reviews, version control, documentation, and CI/CD processes.
• Support application security reviews, deployment activities, and ongoing system maintenance.
• Maintain technical documentation, data schemas, and build processes while ensuring backward compatibility across production systems.
• Troubleshoot application, database, and infrastructure issues across development and production environments.
• Contribute across multiple technical disciplines including software engineering, data engineering, systems administration, and technical consulting., All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. Related Jobs Software Engineer TS/SCI Poly Leidos Annapolis Junction, MD*On-Site JSON YAML Linux Junit CMake DevOps JAX-WS MongoDB Jenkins Mockito Planning Equities OpenShift Encodings Leadership Management Automation Purchasing Kubernetes User Story Upskilling PostgreSQL Embedded C XML Schema Code Reuse Market Data Server-Side Build Tools Web Services Unit Testing Cryptography Apache Maven Java Servlet Communication Team Building Apache Tomcat Prioritization Business Logic Key Management Version Control Test Automation Fault Tolerance Design Software Sprint Planning Ancient History Web Applications Spring Framework Pair Programming Canonicalization Agile Methodology Docker (Software) Security Software Data Flow Diagram Digital Signature Analytical Method Eclipse (Software) Application Layers WildFly (JBoss AS) Device Programming Systems Engineering System Requirements User Interface (UI) Selenium (Software) Cucumber (Software) Application Servers Time Off Management Security Engineering Software Engineering Software Development Signals Intelligence Independent Thinking Java Persistence API Enterprise JavaBeans Java Transaction API JavaScript Frameworks Scaled Agile Framework Oracle WebLogic Server Development Environment Requirements Management Angular (Web Framework) Microsoft Visual Studio Java Enterprise Edition Jersey (Java Framework) Public Key Cryptography Configuration Management SQL (Programming Language) C++ (Programming Language) Java (Programming Language) Behavior-Driven Development Computer Network Operations Cascading Style Sheets (CSS) Scrum (Software Development) Unified Field Theories (UFT) Python (Programming Language) Test-Driven Development (TDD) Groovy (Programming Language) Systems Development Life Cycle Enterprise Application Software Software Development Life Cycle Bootstrap (Front-End Framework) Extensible Markup Language (XML) HyperText Markup Language (HTML) JavaScript (Programming Language) Web Services Description Language Java API For RESTful Web Services Acceptance Test-Driven Development Integrated Development Environments Simple Object Access Protocol (SOAP) Karma (JavaScript Testing Framework) Jasmine (JavaScript Testing Framework) Extensible Stylesheet Language Transformations (XSLT) Top Secret-Sensitive Compartmented Information (TS/SCI Clearance) +0

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• Bachelor's degree and 12+ years experience.
• Strong experience developing full stack web applications using modern JavaScript frameworks (Vue.js, React, or similar).
• Experience developing interactive visualizations using D3.js or comparable visualization libraries.
• Strong programming experience with Python and JavaScript.
• Experience building RESTful APIs and backend services.
• Experience with relational databases such as PostgreSQL and spatial technologies including PostGIS.
• Experience designing and maintaining geospatial data processing workflows.
• Knowledge of software development lifecycle practices including version control, testing, and code review.
• Experience developing applications supporting large, complex datasets.
• Excellent analytical, problem-solving, and communication skills.
• Must be able to obtain and maintain a public trust clearance.

Preferred Qualifications

• Experience with Vue.js, Vuex, XState, Tailwind CSS, Vuetify, GraphQL, Node.js, and jQuery.
• Experience with automated testing frameworks such as Playwright, Vitest, or similar.
• Familiarity with enterprise data governance, statistical data products, or federal data standards.
• Experience supporting secure software development and application authorization processes.
• Experience working with economic, demographic, or public-sector data products.
• Ability to work effectively with cross-functional teams, technical stakeholders, and business partners.

Technical Skills

• Languages: JavaScript, Python, SQL
• Frontend: Vue.js, Vuex, D3.js, Tailwind CSS, Vuetify, jQuery
• Backend: Node.js, GraphQL
• Databases: PostgreSQL, PostGIS
• Testing: Vitest, Playwright, pgTap
• GIS: ArcGIS, Geospatial Data Processing
• Documentation: AsciiDoc
• Other: REST APIs, Data Visualization, Data Pipelines, Software Architecture, CI/CD, Code Reviews

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

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., Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .