Senior Backend Java Developer Role Onsite in McClean VA, In-Person Interview Required, 12 months+ contract, w2, 1099 or ctc Job at Smoothstack, McLean, VA

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  • Smoothstack
  • McLean, VA

Job Description

Senior Backend Java Developer Role

Onsite in McLean, VA/In-Person Interview Required

12 months+ contract

w2, 1099 or ctc

10+ years' experience Required

We are seeking an experienced Senior Java Backend Developer with a strong background in Java (Java 8+) , Spring Framework , enterprise backend development , messaging systems , and Linux environments .

  • The ideal candidate should have 10+ years of experience in backend engineering and a solid understanding of enterprise-level architecture, security, and performance tuning.
  • This role requires both deep technical expertise and the ability to collaborate in Agile teams, mentor junior developers, and contribute to scalable and secure solutions.

Key Responsibilities:

Backend Development:

  • Design, develop, and maintain robust backend systems using Java 8+ , Spring Boot , and Java EE/Jakarta EE .
  • Develop RESTful APIs using Spring Boot and optionally JAX-RS .
  • Implement API documentation using Swagger/OpenAPI .
  • Ensure secure, maintainable, and scalable code using best practices and design patterns.

Web & Data Communication:

  • Deep understanding of , JSON , XML , and WebSockets .
  • Implement authentication and authorization using Spring Security , JWT , and OAuth2 .
  • Apply secure coding practices and input validation techniques.

Database Expertise:

  • Strong experience with RDBMS : Oracle , PostgreSQL , MySQL , SQL Server .
  • Skilled in writing complex SQL , stored procedures, indexing, and performance tuning.
  • Experience with ORMs : Hibernate , JPA .
  • Basic understanding of NoSQL databases like Cassandra (as needed).

Messaging and Asynchronous Processing:

  • Solid experience with Java Messaging Service (JMS) and messaging tools such as ActiveMQ , RabbitMQ , IBM MQ , or Apache Kafka .
  • Understand and implement Pub/Sub , Point-to-Point , and Event-Driven Architecture patterns.
  • Handle error recovery, retries, and dead-letter queues effectively.

PKI & Security Infrastructure:

  • Experience with PKI infrastructure : public/private key management, keystores (.p12), keytool/OpenSSL, encryption/decryption, sign/verify using asymmetric/symmetric cryptography.

DevOps & CI/CD:

  • Build and manage projects using Maven or Gradle .
  • Integrate and deploy using CI/CD tools : Jenkins , Bitbucket Pipelines , etc.
  • Scripting experience in Python , Shell , and tools like Ansible .

Linux & System Integration:

  • Professional experience with Red Hat Linux or similar distributions.
  • Comfortable with Linux command-line tools, file systems, and process management.

Team Collaboration & Soft Skills:

  • Work effectively in Agile/Scrum teams.
  • Proficient with Git for version control.
  • Review code, provide mentorship, and support best practices within the team.
  • Strong documentation and communication skills .
  • Analytical mindset with strong problem-solving skills .

If you would like to join Smoothstack's first-class team of Technologists,

supporting a Global Telecom, Financial Services and Technology Pioneer and Recognized Industry Leader, please email your updated resume as a Word Document along with your desired w2, 1099 or ctc rate/rate range, and your available weekdays/times EST for your In-Person Interview, to: Gautham Sarathy

Thank You! 😊

Job Tags

Contract work, Weekday work,

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