Full Stack Developer

IMPYRIAN•Ashburn, VA

About The Position

Impyrian is seeking a junior-level Full Stack Developer to support the development, enhancement, and maintenance of enterprise applications. The role develops and supports Java-based applications using modern frameworks, relational databases, and automated testing tools in an Agile environment, working with developers, technical leads, business analysts, and stakeholders. The developer will contribute to the Enterprise Reference Data Service, the authoritative source of geographical, regulatory, and operational reference data across U.S. Customs and Border Protection. The team is building and maintaining a centralized, auditable platform using Java/Spring Boot microservices, bitemporal PostgreSQL data models, Liquibase migrations, Apache Kafka event streaming, and accessible USWDS-compliant Angular interfaces. The position also includes supporting releases, deployments, enhancements, and production maintenance; demonstrating features and architecture to internal stakeholders, program leaders, and prospective downstream consumers; and sharing technical guidance with less experienced team members as appropriate. The role may include other duties assigned by the supervisor.

Requirements

Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related field.
At least 3 years of relevant professional experience.
At least 3 years of experience developing and/or supporting Java applications.
Strong experience with Java frameworks, including Spring and Spring Boot.
Experience working in an Agile software development environment.
Experience using Jira or a similar issue-tracking and Agile development tool.
Experience developing applications integrated with relational databases such as Oracle or PostgreSQL.
Experience writing and maintaining automated unit tests using JUnit or a comparable framework.
Understanding of the software development lifecycle (SDLC), object-oriented programming, and modern software development practices.
Strong analytical, troubleshooting, and problem-solving skills.
Good written and verbal communication skills.
Ability to collaborate with developers, technical leads, business analysts, and other stakeholders.
Ability to write maintainable code, participate in code reviews, and support application releases and production maintenance.
Ability to sit for extended periods while working at a desk or workstation.
Prolonged use of a computer and keyboard, including typing and using a mouse.
Frequent use of manual dexterity for computer-based work and detailed tasks.
Ability to walk or stand occasionally to attend meetings or move around the office.
Ability to maintain focus and attention to detail throughout the workday.

Responsibilities

Design, develop, and maintain RESTful APIs and microservices using Java and Spring Boot.
Build and optimize data access layers, entity mappings, and database interactions using Spring Data JPA and PostgreSQL.
Implement bitemporal data models that support historical auditing, point-in-time retrieval, and preservation of historical records.
Develop asynchronous event publishers using Apache Kafka and Apache Avro schemas for reliable downstream message delivery.
Develop responsive, accessible single-page applications using Angular and TypeScript.
Analyze requirements with technical and functional stakeholders and translate business needs into technical solutions.
Maintain automated test suites using JUnit 5, Vitest, Playwright, or equivalent frameworks.
Write clean, efficient, maintainable, and documented code in accordance with software development best practices.
Troubleshoot defects, identify root causes, and implement effective solutions.
Participate in peer code reviews and improve application architecture, code quality, and development practices.
Use Google Gemini and AI-assisted development workflows to accelerate feature development, code reviews, refactoring, and test generation.
Participate in Agile ceremonies, including sprint planning, daily stand-ups, backlog refinement, and retrospectives.
Track development activities, defects, and user stories in Jira or similar tools.
Support releases, deployments, enhancements, and production maintenance.
Conduct live feature demonstrations and architectural walkthroughs covering APIs, the web portal, and Kafka event feeds for internal stakeholders, program leaders, and prospective downstream consumers.
Share technical guidance and knowledge with less experienced team members, as appropriate.
Perform other duties as assigned by the supervisor.