Location: Reston, VA (Hybrid) Duration: Contract through end of year (extension possible) Candidates must reside in the DMV area.
Overview
We are seeking a Senior Java Backend Developer to support a major AWS cloud migration initiative. This role is ideal for an experienced engineer with deep expertise in Java, Spring Framework, Microservices, AWS Migration, and enterprise-level backend development. The selected candidate will play a key role in designing, developing, and modernizing large-scale applications while mentoring junior engineers and collaborating with cross-functional teams.
Required Qualifications
12+ years of hands-on experience in Java development
8+ years of software design, development, and systems integration experience
3+ years of AWS cloud migration experience (required)
Strong expertise with:
Java
Spring Framework / Spring Boot
Spring Batch
Microservices architecture
IBM MQ
Extensive database experience with:
SQL
Oracle
MongoDB
PostgreSQL
Experience integrating and supporting legacy/web services
Strong understanding of SDLC, Agile methodologies, CI/CD, DevSecOps, and automated testing
Experience leading technical initiatives and mentoring developers
Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience)
Key Responsibilities
Lead the design, development, testing, and deployment of enterprise applications
Drive AWS cloud migration efforts and modernization initiatives
Design scalable backend services and microservices architectures
Collaborate with Architects, Product Owners, Scrum Masters, and stakeholders to define technical solutions
Conduct code reviews and ensure adherence to development standards and best practices
Identify technical risks and implement mitigation strategies
Support CI/CD implementation and application deployment processes
Mentor junior engineers and provide technical leadership across project teams
Preferred Skills
Experience with cloud-native application development
Knowledge of TDD, BDD, and automated testing frameworks
Strong experience with large-scale enterprise applications serving thousands of users
Excellent communication and stakeholder management skills
Ref: #851-Rockville-S1
Numbers & Facts
Location
Reston, VA
Industry
Staffing/Employment Agencies
Salary
$88.64 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
Best Practicesunmatched
Cloud Applicationsunmatched
Cloud Computingunmatched
Code Reviewsunmatched
Communication Skillsunmatched
Computer Scienceunmatched
Continuous Deployment/Deliveryunmatched
Continuous Integrationunmatched
Cross-Functionalunmatched
Database Technologyunmatched
Enterprise Applicationsunmatched
IBM WebSphere MQ (Message Queue)unmatched
Information Technology & Information Systemsunmatched
Javaunmatched
Leadershipunmatched
Maintain Complianceunmatched
Mentoringunmatched
Microservicesunmatched
MongoDBunmatched
Oracleunmatched
PostgreSQLunmatched
Risk Analysisunmatched
Risk Managementunmatched
SQL (Structured Query Language)unmatched
Scrum Product Ownerunmatched
ScrumMasterunmatched
Software Designunmatched
Software Developmentunmatched
Software Development Lifecycle (SDLC)unmatched
Software Engineeringunmatched
Spring Frameworkunmatched
System Integration (SI)unmatched
Technical Leadershipunmatched
Test Automationunmatched
Test Plan/Scheduleunmatched
Web Servicesunmatched
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