Senior Java Engineer - Elasticsearch & Big Data

FANTOM CORPORATION; Chantilly (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

Fantom Corporation is seeking an experienced Search Software Engineer to build enterprise search capabilities using Java, Elasticsearch, and Solr. You will design schemas, optimize queries, and run scalable clusters to support mission-critical applications.

The role requires 5+ years of backend Java development, expertise with Lucene, and hands-on big data experience. You will contribute to secure SDLC practices, mentor teammates, and collaborate across architectures in a defense/intelligence

Qualifications

• Requires Bachelor’s degree in Computer Science or related field
• Minimum of 5 years backend Java development experience
• Experience with Elasticsearch or Apache Solr and schema design
• Strong Lucene query syntax and search optimization knowledge
• Experience with distributed data processing frameworks and big data environments

Responsibilities

• Design, develop, and maintain enterprise search solutions using Elasticsearch or Apache Solr
• Design and implement search schemas, indexing strategies, and search optimization techniques
• Develop and optimize Lucene-based search queries to improve search accuracy and performance
• Configure, administer, and optimize Elasticsearch or Solr clusters, including shard design, replication, and performance tuning
• Develop scalable backend services using Java to support enterprise search and data processing applications
• Build, test, and deploy production-ready Java code following secure software development practices
• Participate in code reviews, unit testing, integration testing, and production deployments
• Develop and maintain data processing pipelines using big data technologies
• Work with distributed computing frameworks to process and analyze large-scale datasets
• Troubleshoot application, search platform, and data pipeline performance issues
• Collaborate with software engineers, data engineers, and system architects on scalable solutions
• Participate in Agile development activities including sprint planning, code reviews, and technical design sessions

Skills

Java backend development

Distributed systems

Troubleshooting

Communication skills

Education

Bachelor's degree in Computer Science or related

Tools

Elasticsearch

Apache Solr

Lucene

Hadoop

Apache Spark

PySpark

HBase

Docker

Kubernetes

CI/CD

Job description

Fantom Corporation is seeking an experienced Search Software Engineer to build enterprise search capabilities using Java, Elasticsearch, and Solr. You will design schemas, optimize queries, and run scalable clusters to support mission-critical applications.

The role requires 5+ years of backend Java development, expertise with Lucene, and hands-on big data experience. You will contribute to secure SDLC practices, mentor teammates, and collaborate across architectures in a defense/intelligence