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Pacific Northwest National Laboratory Logo

Software Engineer II - Backend (Seattle, WA)

Pacific Northwest National Laboratory

Salary not specified
Oct 24, 2025
Seattle, WA, US
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PNNL's National Security Directorate (NSD) needs to develop and deploy advanced AI systems and data analytics capabilities to counter increasingly complex, AI-enabled threats to national security. This involves processing petabytes of multi-modal intelligence data at scale and speed to support critical national security missions.

Requirements

  • Solid Python skills
  • Experience with one additional language (C-Sharp/.Net, JavaScript, Java, or similar)
  • Basic cloud experience (AWS, Azure, or GCP)
  • Familiarity with Linux environments
  • Understanding of version control (Git)
  • Exposure to CI/CD
  • Basic Agile/Scrum experience
  • Experience with SQL
  • Basic understanding of data processing concepts
  • Interest in AI/ML technologies, geospatial systems, large-scale data processing
  • Understanding of software engineering and data management best practices
  • Understanding of cloud architecture and implementation
  • Familiar with machine learning algorithms, with experience in machine learning pipeline development

Responsibilities

  • Contribute to agentic AI implementations, work with LLM integrations, learn MLOps best practices on real-world applications
  • Build components for multi-INT fusion systems, develop GEOINT processing tools, contribute to threat analysis platforms
  • Develop data pipelines, build analytics workflows, contribute to cloud-native data architectures
  • Design, build, and optimize scalable systems for processing multi-modal intelligence data at a remarkable scale and speed
  • Contribute to mission-critical AI systems
  • Help build enterprise-scale data platforms
  • Gain hands-on experience with some of the nation's most sophisticated intelligence and security applications

Other

  • This position is based in Seattle, WA, and requires an on-site presence Monday through Thursday, with Friday as required by business needs.
  • U.S. Citizenship
  • Ability to obtain and maintain a federal security clearance.
  • Background Investigation: Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements for access to classified matter in accordance with 10 CFR 710, Appendix B.
  • Drug Testing: All Security Clearance positions are Testing Designated Positions, which means that the applicant selected for hire is subject to pre-employment drug testing, and post-employment random drug testing.