Java Search Engineer — Solr/Elasticsearch Expert

WarCollar Industries, LLC; McLean (VA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical insurance premium coverage

PTO based on billable hours

Federal holidays plus your birthday

Matching 401k

Education reimbursement plus bonuses

Job summary

WarCollar Industries, LLC is seeking an experienced Search Software Engineer to support mission-critical national security programs. This role is ideal for engineers with deep expertise in Java development, enterprise search technologies, and big data platforms who thrive in high-impact, production environments.

Design, develop, and optimize Java-based backend services and high-performance search infrastructure using Solr/Elasticsearch.

Qualifications

• Bachelor's degree in Computer Science or a related technical field (or equivalent experience).
• 3+ years of experience with Solr/Elasticsearch and schema design.
• 5+ years of backend Java development.
• Experience delivering production software through code reviews, unit testing, integration testing, and deployment.
• TS/SCI Full Scope Polygraph required.

Responsibilities

• Design, develop, and maintain scalable Java-based backend applications supporting mission operations.
• Configure, optimize, and troubleshoot Solr and/or Elasticsearch environments for high-performance search capabilities.
• Perform schema updates and implement search enhancements.
• Develop and optimize complex Lucene queries to improve search accuracy and efficiency.
• Manage and tune Solr/Elasticsearch shards for scalability, resilience, and performance.
• Develop solutions within large-scale data environments using Hadoop, Spark, PySpark, and HBase.
• Participate in code reviews, unit testing, integration testing, and deployment of production-ready software.
• Collaborate with engineers, analysts, and mission stakeholders to deliver innovative technical solutions.

Skills

Solr/Elasticsearch

Lucene queries

Sharding architecture

Performance tuning

Java backend development

Big data environments

Hadoop

Spark

PySpark

HBase

Spring Boot

Education

Bachelor's degree in Computer Science or related field

Tools

Hadoop

Spark

PySpark

HBase

Spring Boot

Job description

WarCollar Industries, LLC is seeking an experienced Search Software Engineer to support mission-critical national security programs. This role is ideal for engineers with deep expertise in Java development, enterprise search technologies, and big data platforms who thrive in high-impact, production environments.

Design, develop, and optimize Java-based backend services and high-performance search infrastructure using Solr/Elasticsearch.