Senior Java Backend Developer

Company Description

Lumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, and Enterprise Transformation.

Job Role: Senior Java Backend Developer

Job Location: Washington, DC. (Remote)

Job Type: Long Term Contract

Job Summary

About the Role

We are seeking an experienced Senior Java Backend Developer to design, build, and maintain complex enterprise-grade web applications. This role requires strong backend expertise, hands-on experience with Kafka, and deep knowledge of AWS cloud technologies. You will collaborate closely with Product Owners and Architects to deliver scalable, high-performance solutions.

Key Responsibilities

• Design, build, and maintain complex web applications with a focus on backend development.
• Write, maintain, and optimize high-quality Java code following best practices.
• Perform Kafka configuration and administration.
• Develop clean, efficient, and scalable backend solutions ensuring performance and code quality.
• Conduct code reviews, provide constructive feedback, and drive continuous team improvement.
• Create and maintain data models to ensure data integrity across enterprise systems.
• Implement complex data operations supporting backend development standards.
• Collaborate with Product Owners to break down requirements and align with project goals.
• Work closely with Architects to ensure alignment with overall solution design.

Minimum Qualifications

• Bachelor’s degree in a related field or equivalent experience.
• 8+ years of hands-on experience in Java development (Senior level).
• 3+ years of experience working with Kafka - (Kafka Admin experience).
• Strong experience with messaging and data-streaming platforms.
• Proven experience designing and developing applications using AWS services, including:
• S3, Lambda, Elastic Beanstalk
• SQS, SNS, API Gateway
• EC2, Data Pipeline, CloudWatch
• CodeCommit, CloudFormation
• Hands-on experience with Angular, Java, J2EE, Spring, and REST APIs.
• Strong expertise in AWS cloud ecosystem including:
• Lambda, Kinesis, DynamoDB/Aurora, Redshift, Node.js
• Solid experience with Kafka (Kafka Admin experience is a plus).
• Strong background in data modeling and database design.

Preferred Skills

• Experience in building scalable, high-performance distributed systems.
• Strong understanding of microservices architecture.
• Familiarity with modern DevOps practices and CI/CD pipelines.

Lumen Solutions Group Inc is an equal opportunity employer. All qualified applicants will be considered for employment without regard to any legally protected status.

Remote

Skills

AWS Lambda, Administrative Skills, Amazon Elastic Compute Cloud (EC2), Amazon Simple Storage Service (S3), Amazon Web Services (AWS), AngularJS, Application Programming Interface (API), Best Practices, Blueprints, Business Processes, Business Strategy, Cloud Computing, Code Reviews, Consulting, Continuous Deployment/Delivery, Continuous Integration, Data Management, Data Modeling, Data Quality, Database Design, DevOps, Distributed Computing, Ecosystems, Enterprise Architecture, Enterprise Data Integration, Information Technology Consulting, Internet Application, Java, Java Platform Enterprise Edition (Java EE/J2EE), Microservices, Node.js, Operational Support, Process Improvement, Professional Services, REST (Representational State Transfer), Scalable System Development, Simple Queue Service (SQS), Software Administration, Software Design, Software Development, Software Engineering, Technical Recruiting, Technical Support

About the Company

Lumen Solutions Group, Inc.