Senior Java Full Stack Engineer (AWS Cloud Migration)
Location: Reston, VA (Hybrid) Type: Contract through December 2026 (potential extension) Schedule: 40 hours/week Local Candidates: DMV area only. Must be available for onsite meetings in Reston approximately once per week or biweekly.
Overview
We are seeking a Senior Java Full Stack Engineer to support a high-profile enterprise cloud modernization initiative. This role will focus on migrating Java-based applications to AWS, modernizing data platforms, and developing scalable full stack solutions for a large-scale Member 360 platform serving tens of thousands of users.
The ideal candidate is a hands-on senior developer with deep experience in AWS cloud migration, Java development, Angular, MongoDB, Aurora PostgreSQL, and DevOps practices. Experience integrating GenAI-enabled services into enterprise applications is highly preferred.
Key Responsibilities
Lead development efforts for the migration of Java applications and services to AWS cloud environments.
Design, develop, test, and support enterprise-grade full stack applications using Java, Angular, Python, and cloud-native technologies.
Convert and migrate legacy database structures, including UDB environments, to Aurora PostgreSQL.
Support MongoDB integrations and data modernization initiatives.
Develop and maintain CI/CD pipelines and follow DevOps best practices for deployment, testing, and monitoring.
Implement and support AI and GenAI-powered application features and integrations.
Collaborate with architects, product owners, and stakeholders to define technical solutions and requirements.
Design, develop, test, and document highly scalable software solutions with a focus on performance, reliability, and availability.
Support production systems, troubleshoot critical issues, and provide technical leadership on complex software challenges.
Participate in architecture discussions, technology evaluations, and modernization initiatives.
Mentor junior engineers and contribute to engineering best practices including code quality, testing, and software delivery standards.
Required Qualifications
Bachelor's degree in Computer Science, Information Technology, or related field.
8+ years of software development experience in enterprise environments.
Strong hands-on experience with Java application development.
Proven experience leading or supporting AWS cloud migration initiatives.
Experience building cloud-native applications and services within AWS.
Strong knowledge of Angular and modern front-end development.
Experience with MongoDB and Aurora PostgreSQL.
Solid understanding of software architecture, system integration, and distributed applications.
Experience with CI/CD pipelines, automated testing, and DevOps methodologies.
Strong knowledge of Agile development practices and SDLC.
Ability to communicate effectively with both technical and non-technical stakeholders.
Preferred Qualifications
Experience with GenAI, Agentic AI, or AI service integrations.
Experience with Python development.
Experience with Tomcat and Java application modernization.
Exposure to large-scale enterprise systems serving high-volume user populations.
Experience extending open-source frameworks and libraries.
Technical Environment
Java
Angular
AWS Cloud
Python
MongoDB
Aurora PostgreSQL
Tomcat
CI/CD Pipelines
DevOps Tools
Agile Methodologies
GenAI / AI Integrations
What We're Looking For
A senior engineer who can contribute immediately with minimal ramp-up.
Strong full stack capabilities across both backend and frontend development.
Proven success delivering cloud migration projects in fast-paced environments.
Technical leadership, problem-solving skills, and a passion for modern software engineering practices.
Ref: #851-Rockville-S1
Numbers & Facts
Location
Reston, VA
Industry
Staffing/Employment Agencies
Salary
$81.06 Per Hour
Company Size
2,500 to 4,999 employees
Website
https://systemone.com
About Company
Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives.
Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom.
Skills
Agile Programming Methodologiesunmatched
Amazon Web Services (AWS)unmatched
AngularJSunmatched
Application Integrationunmatched
Artificial Intelligence (AI)unmatched
Best Practicesunmatched
Cloud Applicationsunmatched
Cloud Computingunmatched
Communication Skillsunmatched
Computer Scienceunmatched
Continuous Deployment/Deliveryunmatched
Continuous Integrationunmatched
DevOpsunmatched
Distributed Applicationsunmatched
Enterprise Applicationsunmatched
IBM DB2 UDB (Database 2 Universal Database)unmatched
Identify Issuesunmatched
Information Technology & Information Systemsunmatched
Javaunmatched
Large-Scale Systemsunmatched
Leadershipunmatched
Mentoringunmatched
MongoDBunmatched
Open Sourceunmatched
PostgreSQLunmatched
Problem Solving Skillsunmatched
Production Supportunmatched
Production Systemsunmatched
Python Programming/Scripting Languageunmatched
Quality Assurance Methodologyunmatched
Scalable System Developmentunmatched
Software Architectureunmatched
Software Developmentunmatched
Software Development Lifecycle (SDLC)unmatched
Software Engineeringunmatched
System Integration (SI)unmatched
Technical Leadershipunmatched
Technology Analysisunmatched
Test Automationunmatched
Test Plan/Scheduleunmatched
Testingunmatched
Tomcatunmatched
User Interface/Experience (UI/UX)unmatched
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