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Lead Search Engineer


Lead Search Engineer

Progressive Technology Federal Systems, Inc. (PTFS) is a leading enterprise Content Services Platform (eCSP) to Federal, Civilian and DoD agencies, and is seeking a Lead Search Engineer to support our growing software projects and products.

Duties: The Lead Search Engineer will serve as the subject matter expert (SME) primarily responsible for the design, development and support of the custom code and open-source products that comprise the search engine Solr. The Java-based custom code includes parsers, query parser language, publisher, consistency check, APIs, monitoring utilities and XSLT transforms. The candidate will be working with the following state of art technologies; Solr, Lucene, Natural Language Processing, Machine Learning, Linux, Groovy, Python, Splunk, Prometheus, Grafana, DevSecOps, Jenkins, Maven, Gitlab, Nexus, Ansible, TDD, BDD, JMeter, Selenium, and other open source frameworks.

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Skills Required:

  • Over 7 years of experience as Solr Search Engineer for an enterprise-level information retrieval system.
  • Strong experience installing, tuning, administering, maintaining, and upgrading Solr on Linux in a large-scale production environment.
  • Strong experience indexing large volume of content and metadata to Solr search engine
  • Strong experience developing and maintaining custom query parser on top of Apache Lucene API
  • Strong experience in developing and maintaining a custom search API layer using industry best practices, Java, and SolrJ.
  • Strong experience with Solr Search queries optimization and relevancy tuning
  • Strong experience designing, implementing, and maintaining Solr schema.
  • Strong experience troubleshooting multi-tiers systems on Linux environment, profiling java application and tunning JVM.
  • Experience implementing and maintaining custom parser from unstructured and structured content using core Java and regular expression
  • XML experience including parsing using JAXP and XSLT/XPATH transformation implementation to index metadata.
  • Experience using templating engine of dynamic language to format and decorate search results.
  • Experience implementing monitoring solution using Prometheus and Grafana.
  • Experience with DevOps using Git, Jenkins, Maven, Ansible and Nexus
  • Experience with Behavior-driven development or Test-driven development. Test automation and Performance testing
  • Experience with Agile software development lifecycle methodologies including Scrum or Kanban
  • Experience authoring and maintaining design documentation, standard operating procedures and configuration documentation.

Preferred Skills:

  • Experience with Linux Containers (Docker/Podman), Kubernetes, and deployment of containerized applications/Microservices architectures.
  • Experience with AWS and/or other Azure cloud technologies
  • Experience with Machine learning, Natural Language Processing and Vector Search.

Education: A Bachelor's Degree in Computer Science or Engineering, or additional work experience in software development.


  • US Citizen with a minimum of three years continuous residency in the USA.
  • You must be authorized to legally work in the U.S., PTFS will not sponsor any visas at this time.
  • Eligibility for a Public Trust required.


  • 15 days PTO per year
  • 11 paid holidays per year
  • Medical, Dental & Vision
  • 401(k) Plan with matching
  • Tuition assistance
  • Disability insurance
  • Gym in the Rockville, MD office

Job ID: PTFS-1469
Employment Type: Other