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# Senior Full Stack Engineer (Heavy Backend / AI-Assisted)

- **Company:** Expert Technology Services
- **Location:** McLean, VA, United States
- **Experience:** Expert
- **Salary:** $131,300.0 - $237,350.0
- **Contract:** Permanent contract
- **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Apache Tomcat, Server Applications, Application Performance Management, JIRA, Cascading Style Sheets (CSS), Databases, Relational Databases, Software Design Patterns, Gradle, Hibernate (Java), Java Persistence API, Spring Framework, JSON, JQuery, Junit, PostgreSQL, Apache Maven, Microsoft SQL Server, Model View Controller (MVC), Parsing, Performance Tuning, Mockito, Singleton Pattern, Software Deployment, Software Engineering, Web Services, Extensible Markup Language (XML), Jetty, Multithreading, Freeform SQL, Delivery Pipeline, Backend, AngularJS, Apache Kafka, Graphql, Front End Software Development, Video Streaming, Restful APIs, Cucumber (Software), AWS EKS, Docker, Jenkins
- **Published:** July 3, 2026
- **Apply:** https://www.careerjet.com/jobad/us3ba16509cc13201eaa9320daebe6fc03

## About the Role

5-7+ years of professional software development experience.

 - Strong proficiency in Java (Java 8 or above), including I/O, multithreading, collections, generics, and lambda expressions.
 - Advanced skills in database technologies, including RDBMS (MS SQL or PostgreSQL), advanced SQL queries (especially JOINs), and performance tuning.
 - Experience with Gen AI tools and AI coding agents (e.g., Claude Code, Codex).
 - Experience using coding agent-enabled IDEs (e.g., VSCode, Amazon Kiro).
 - Proficient in REST API Web Services, GraphQL, and Spring frameworks (Spring Core, MVC, Boot, Security, Data/JPA).
 - Familiarity with front-end technologies: HTML, JavaScript, CSS, jQuery, Angular 9 or above.
 - Experience with application servers (Apache Tomcat, Jetty).
 - Strong understanding and use of Docker containers in development.
 - Knowledge of CI/CD pipelines and tools (e.g., JIRA, Jenkins) for application deployment.
 - Experience with Maven, Gradle, Junit/Mockito, Cucumber.
 - Familiar with design patterns (MVC, Singleton, Factory, DAO, DTO, etc.).
 - Experience with XML/JSON technologies and parsers.
 - ORM experience with Hibernate.
 - Experience with streaming technologies (Kafka) and AWS EKS.
 - Strong analytical and communication skills; open to others' ideas and a motivated team player.

## Description

Responsible for end-to-end software development (analysis, architecture, design, development, testing, deployment, maintenance) adhering to industry best practices and security standards.

 - Optimize application performance and scalability; identify and resolve system bottlenecks.
 - Collaborate with business stakeholders and cross-functional teams to gather requirements and deliver solutions.
 - Provide production support, maintenance, and resolve critical issues to ensure smooth business operations.


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