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Java Developer (Mid - SME Level)

Xcelerate Solutions

Salary not specified
Oct 24, 2025
Bethesda, MD, US
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Xcelerate Solutions is seeking a Java Developer to support the design, development, and maintenance of mission-critical systems within an Agile and DevOps framework. This position plays a key role in building scalable, secure, and high-performance backend microservices supporting customer operations and modernization initiatives.

Requirements

  • Extensive experience with Agile methodologies, service-oriented architectures, and modern DevOps practices.
  • Advanced proficiency with Java, the Spring Framework, and microservices architecture, including RESTful API implementation and integration with relational and NoSQL databases.
  • Strong background in developing software that interfaces with data technologies such as Elasticsearch, PostgreSQL, DynamoDB, Kafka, AWS SQS/SNS, AWS Lambda, and AWS S3.
  • Proven experience integrating and delivering within DevOps toolsets and automated CI/CD pipelines.
  • Direct experience with JUnit, Python, and Bash for performance testing and scripting in an Agile environment.
  • Hands-on experience with commercial cloud platforms (AWS, Google Cloud, Azure) and leveraging cloud data services (S3, RDS, EFS).
  • Experience with version control systems and issue tracking systems to ensure collaboration, visibility, and quality.

Responsibilities

  • Design, develop, test, and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs.
  • Participate in and direct software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews.
  • Develop and direct software system validation and testing methods using JUnit and Katalon, integrating custom-developed software solutions that leverage automated deployment technologies.
  • Develop, prototype, and deploy cloud-based solutions using commercial platform services (AWS, Google Cloud, or Azure).
  • Conduct proof-of-concept, performance, and end-to-end testing to ensure systems meet mission-driven infrastructure and performance requirements.
  • Support the Agile software development lifecycle and collaborate closely with Product Owners, Scrum Masters, and technical team members to ensure user story alignment and implementation.
  • Document and execute system software development and deployment, leveraging GitFlow, GitHub, Jenkins, and scripting languages such as Python and Bash.

Other

  • Active TS/SCI clearance with polygraph required.
  • High school diploma plus 8 - 20+ years of relevant experience
  • Bachelor’s degree plus 4 – 10 years of relevant experience
  • Master’s degree plus 4 - 15+ years of relevant experience
  • Doctorate and 13+ years of relevant experience.