Senior Full-Stack Java Engineer - Microservices & AWS

Unissant; Ashburn (VA); Hybrid; USD 140,000 - 180,000; Full time

Job summary

Unissant, Inc. in Ashburn, VA is seeking a senior Full Stack Software Developer to join our team and support a client in Ashburn, VA.

The ideal candidate brings deep experience building modern web applications and backend services in a fast‑paced Agile environment, capable of moving between frontend and backend tasks. Responsibilities include designing, developing, and testing RESTful microservices with Java/Spring Boot, integrating with data sources, and contributing to mission‑focused delivery

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related technical field is required.
• Nine (9) or more years of technical experience in software development is required.
• Strong experience with microservices architecture and service-based application design.
• Proficiency with Java and Spring Boot development.
• Experience developing REST and SOAP web services.
• Experience with AWS-based development or deployment environments.
• Working knowledge of SQL, JPA, and Hibernate.
• Comfortable using development tools such as Eclipse and Visual Studio Code.
• Experience working within an Agile development approach.

Responsibilities

• Design, develop, and unit test RESTful microservices using Java, Spring Boot, and JUnit.
• Develop application components that communicate with backend microservices and data sources.
• Write complex SQL queries and support data modeling activities for reporting needs.
• Participate in technical design, development, troubleshooting, and continuous improvement across the software lifecycle.
• Work collaboratively with developers, engineers, and stakeholders in a large Agile team environment.

Skills

Java

Spring Boot

REST

SOAP

AWS

SQL

JPA/Hibernate

Eclipse

VS Code

Agile

Communication

Problem solving

Education

Bachelor's degree in CS/Software Engineering

Tools

Eclipse

Visual Studio Code

Job description

Unissant, Inc. in Ashburn, VA is seeking a senior Full Stack Software Developer to join our team and support a client in Ashburn, VA.

The ideal candidate brings deep experience building modern web applications and backend services in a fast‑paced Agile environment, capable of moving between frontend and backend tasks. Responsibilities include designing, developing, and testing RESTful microservices with Java/Spring Boot, integrating with data sources, and contributing to mission‑focused delivery