26-3103: Senior Full Stack Software Developer - McLean, VA

Navitas Business Consulting, Inc.; Herndon (VA); On-site; USD 130,000 - 150,000; Full time

Job summary

Navitas Business Consulting, Inc. seeks a Senior Full Stack Software Developer to lead the migration from Java/Spring Boot to Python (Django, FastAPI, Flask). You will develop scalable REST APIs and microservices, design PostgreSQL schemas, and manage AWS CI/CD pipelines in a fast-paced onsite team.

Ideal candidates have 7–10 years of backend experience, strong Java and Python expertise, plus hands-on testing with PyTest/JUnit/Selenium and familiarity with cloud-native development.

Qualifications

• 7–10 years of backend development experience.
• Strong hands-on experience with Java + Spring Boot.
• Solid experience with Python and framework experience (Django; FastAPI/Flask).
• Strong knowledge of SQL & PostgreSQL.
• Experience with AWS services and CI/CD pipelines.
• Hands-on experience with test automation (PyTest, JUnit, Selenium).
• Experience building REST APIs and microservices.
• Ability to work in an onsite, fast-paced environment.

Responsibilities

• Lead and support migration from Java/Spring Boot to Python frameworks (Django, FastAPI, Flask).
• Build scalable REST APIs and microservices in Java and Python during migration.
• Design and optimize PostgreSQL database schemas.
• Implement and maintain AWS CI/CD pipelines for automated deployments.
• Develop and maintain test automation frameworks for Java and Python.

Skills

Java + Spring Boot

Python

Django

FastAPI

Flask

SQL

PostgreSQL

AWS

CI/CD

Test automation

REST APIs

Microservices

Tools

PyTest

JUnit

Selenium

Job description

Senior Full Stack Software Developer
Job ID#: 26-3103
Clearance: N/A
Location: McLean, VA

Who We Are

Since our inception back in 2006, Navitas has grown to be an industry leader in the digital transformation space, and we’ve served as trusted advisors supporting our client base within the commercial, federal, and state and local markets.

What We Do

At our very core, we’re a group of problem solvers providing our award-winning technology solutions to drive digital acceleration for our customers! With proven solutions, award-winning technologies, and a team of expert problem solvers, Navitas has consistently empowered customers to use technology as a competitive advantage and deliver cutting-edge transformative solutions.

Role Overview

Our client currently operates a Java/Spring Boot‑based environment and is now transitioning core backend services to Python. We are seeking a developer with strong Java experience who can lead and support the migration toward Python frameworks such as Django, FastAPI, and Flask.

What You Will Do

• Work on existing backend services built in Java + Spring Boot
• Lead the transition and development of new services using Python (Django / FastAPI / Flask)
• Build scalable REST APIs and microservices in both Java and Python during the migration phase
• Design and optimize database schemas using PostgreSQL
• Implement and maintain AWS CI/CD pipelines for automated deployments
• Develop and maintain test automation frameworks for both Java and Python codebases
• Collaborate with architects, DevOps, QA, and product teams to ensure smooth migration
• Troubleshoot, debug, and optimize application performance across both stacks
• Ensure best practices in security, cloud-native development, and code quality

Required Skills & Experience

• 7–10 yearsof backend development experience
• Strong hands-on experience with Java + Spring Boot
• Solid experience with Python and at least one major framework:
  • Django
  • FastAPI/Flask
• Strong knowledge of SQL & PostgreSQL
• Experience with AWS services and CI/CD pipelines
• Hands-on experience with test automation (PyTest, JUnit, Selenium, etc.)
• Experience building REST APIs and microservices
• Ability to work in an onsite, fast-paced environment

Salary: $130,000 - $150,000