Senior Java Developer(15+ Years)

Job title : Senior Java Developer (Strictly W2, No C2C)Location : McLean, VA (Local Candidates Only)(Day-1 Onsite)Duration: ContractInterview Mode: 1st – Virtual | 2nd – OnsiteJob DescriptionDeveloper-Full Stack Senior All candidates must be either a US Citizen or hold a Permanent Resident Card as well as be a direct W-2 employee to our vendors.Senior Java DeveloperRequired Experience & Education10 years of professional software development experience.Bachelor’s degree in Computer Science or a related field (or equivalent experience).Core Technical Skills (Java & Backend)Strong professional experience with Java (backend development).Experience building RESTful APIs and working with common Java frameworks (e.g., Spring / Spring Boot or similar).Outstanding Java expertise (Java 8+) including I/O, multithreading/concurrency, collections, generics, and lambda expressions.Strong experience building and consuming RESTful API web services.Strong knowledge of Spring Framework and Dependency InjectionProficiency with build/test tools: Maven/Gradle, JUnit/Mockito, FitNesse.Proven ability to perform R&D using AI, including evaluating AI-assisted approaches, rapidly prototyping solutions, and validating outcomes (e.g., prompt engineering, model/tool evaluation, and integrating AI capabilities into workflows or applications).Excellent problem-solving, analytical, and technical skills.Strong oral and written communication skills, with the ability to clearly explain technical concepts to both technical and non-technical stakeholders.Database & Data SkillsOutstanding database skills with strong understanding of RDBMS (e.g., MS SQL) and data modeling.Ability to write advanced SQL queries for reporting, troubleshooting, and data analysis.Experience working with structured and semi-structured data formats: XML and JSON.DevOps / SDLC / ToolingUnderstanding of Docker containers in the development process.Understanding of application lifecycle management.Ability to use CI/CD pipelines and related tools (e.g., JIRA, Jenkins) to build and deploy applications.Experience with Git and collaborative development workflows.Front-End (Working Knowledge)HTML, JavaScript, CSS.Preferred / Nice-to-Have (Python & AI)Prior knowledge of Tableau and SnowflakeStrong understanding of fixed income markets, particularly mortgage and debt securitiesPython proficiency (preferred), particularly for AI/ML development and automation.Soft SkillsFlexible and versatile; able to adapt quickly to new environments and work across projects.