System One

Lead Software Engineer

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

System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.