Base-2 Solutions · Washington, District of Columbia, US

Senior Java Developer

OpenPay not stated

Open — Base-2 Solutions has a posting for this job. Posted 12 Oct 2026.

This posting

Posted 12 Oct 2026 · Pay not stated

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About this job

Position Summary

Base-2 Solutions is seeking a Senior Java Developer to modernize a critical government information system. The ideal candidate will have deep expertise in enterprise Java application development and a proven track record of upgrading complex software infrastructures in secure, regulated environments. The role involves planning and executing upgrades across the technology stack, including Apache Solr with ZooKeeper, Apache Tomcat, Apache Directory Studio, and Java/Python components running on Windows-based VMware infrastructure. Strong knowledge of Oracle 19c database integration, SAP Business Intelligence reporting frameworks, secure coding practices, and upgrading and migrating Solr index data is essential. Experience with PrimeFaces UI framework is a plus. The candidate will collaborate with cross-functional teams including security, infrastructure, and business stakeholders to ensure seamless upgrades with minimal operational disruption.

Essential Duties and Responsibilities

  • Plan and execute technology stack upgrades for enterprise Java applications in secure government environments.
  • Develop and maintain Java/Python components on Windows-based VMware infrastructure.
  • Modernize legacy application code to current standards and best practices.
  • Implement secure coding practices in compliance with government security requirements.
  • Upgrade Apache Solr clusters with ZooKeeper coordination.
  • Migrate and optimize Solr index data during version upgrades.
  • Manage Apache Tomcat application server configurations and deployments.
  • Integrate applications with Oracle 19c database systems.
  • Work with Apache Directory Studio for directory services integration.
  • Support SAP Business Intelligence reporting framework integrations.
  • Collaborate with security, infrastructure, and business stakeholder teams.
  • Ensure minimal operational disruption during system upgrades.
  • Document technical designs, upgrade procedures, and system configurations.
  • Participate in code reviews and knowledge-sharing sessions.

Required Qualifications

  • Expertise in enterprise Java application development on Windows-based VMware infrastructure.
  • Expertise with Python.
  • Expertise with Apache Solr with ZooKeeper (including upgrading and migrating Solr index data).
  • Experience with Apache Tomcat, Apache Directory Studio.
  • Experience with Oracle 19c/relational database integration.
  • Experience with SAP Business Intelligence reporting frameworks.
  • Experience with secure coding practices for government compliance.

Preferred Qualifications

  • Experience with PrimeFaces UI framework.

Required Education and Experience Equivalency

  • Bachelor's degree with 9 years of experience.
  • Master's degree with 7 years of experience.
  • No degree with 13+.

Required Certifications

  • None specified.

Required Security Clearance

  • Active Top Secret/SCI with CI Polygraph

Equal Employment Opportunity

Base-2 Solutions is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, age, sexual orientation, gender identity, genetic information, protected veteran status, or any other characteristic protected by law, and will not be discriminated against on the basis of disability. Learn more: base-2solutions.com/eeo

Read the full posting

Not this job's pay

What do Corporate – Information Technology jobs in District of Columbia pay?

Talentify has no pay figure for this posting. The lines below are about Corporate – Information Technology jobs on Talentify in District of Columbia as a group, computed by Talentify's job index across their postings. They are not the pay for this job.

Of the 166 Corporate – Information Technology jobs on Talentify in the District of Columbia, 41 list pay per year.

Taking the midpoint of each listed range, the middle half pay 108,763–143,913 USD per year and the median is 121,785 USD per year.

38 of these 41 name no currency; they are counted as USD because the jobs are in the United States.

Pay as employers listed it, not adjusted or verified. Updated 2026-11-07.

Computed on 2026-11-07 from the pay in 41 listings.

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