Pacific Northwest National Laboratory
Software Engineer II - Backend (Seattle, WA)
Pacific Northwest National Laboratory, Seattle, Washington, us, 98127
Overview
At PNNL, our core capabilities are divided among major departments that we refer to as Directorates within the Lab, focused on a specific area of scientific research or other function, with its own leadership team and dedicated budget. Our Science & Technology directorates include National Security, Earth and Biological Sciences, Physical and Computational Sciences, and Energy and Environment. In addition, we have an Environmental Molecular Sciences Laboratory, a Department of Energy, Office of Science user facility housed on the PNNL campus. The National Security Directorate (NSD) drives science‑based, mission‑focused solutions to take on complex, real‑world threats to our nation and the world. The AI and Data Analytics Division, part of the National Security Directorate, combines profound domain expertise and creative integration of advanced hardware and software to deliver computational solutions that address complex data and analytic challenges. Working in multidisciplinary teams, we connect foundational research to engineering to operations, providing the tools to innovate quickly and field results faster. Our strengths are integrated across the data analytics lifecycle, from data acquisition and management to analysis and decision support.
Responsibilities Solving the hardest problems in national security Protecting U.S. residents and visitors requires sophisticated technological solutions to counter increasingly complex, AI‑enabled threats. As adversaries deploy autonomous systems, coordinate multi‑domain operations, and leverage advanced AI capabilities, our capabilities must evolve to match this complexity. The PNNL national security mission employs our expert engineering talent—self‑driven innovators who thrive in ambiguity—to architect and deliver next‑generation AI systems, multi‑intelligence fusion platforms, and large‑scale analytics capabilities that form the backbone of our nation’s security infrastructure. You'll tackle problems that don't exist elsewhere, from detecting and preventing smuggling of drugs and contraband to correlating petabytes of multi‑modal intelligence data to solve national security problems. Every system, every algorithm, and every deployment you support directly strengthens our nation’s security posture. This work demands relentless drive—the kind of engineer who sees obstacles as puzzles to solve and treats mission success as personal responsibility.
What You’ll Build & Learn
AI Systems Development – Contribute to agentic AI implementations, work with LLM integrations, learn MLOps best practices on real‑world applications
Intelligence Platform Development – Build components for multi‑INT fusion systems, develop GEOINT processing tools, contribute to threat analysis platforms
Data Engineering – Develop data pipelines, build analytics workflows, contribute to cloud‑native data architectures
Professional Growth – Receive mentorship from senior engineers, participate in code reviews, learn enterprise software development practices
Technical Skills (We’ll Help You Grow)
Programming Foundation – Solid Python skills, experience with one additional language (C#/.NET, JavaScript, Java, or similar)
Platform Experience – Basic cloud experience (AWS, Azure, or GCP), familiarity with Linux environments
Development Practices – Understanding of version control (Git), exposure to CI/CD, basic Agile/Scrum experience
Data & Databases – Experience with SQL, basic understanding of data processing concepts
Eagerness to Learn – Interest in AI/ML technologies, geospatial systems, large‑scale data processing
What We Offer
Accelerated Learning – Work with cutting‑edge AI and data technologies while receiving guidance from industry experts
Meaningful Impact – See your contributions deployed in systems that protect national security
Career Growth – Clear advancement path with mentorship and technical skill development opportunities
Cutting‑Edge Technology – Hands‑on experience with the latest AI, cloud, and data engineering technologies
National Interest Project Examples
Detect and prevent smuggling of drugs and contraband at ports of entry [Link]
Develop large data pipelines to thwart funding for terrorists, nuclear proliferators, drug cartels, and rogue leaders [Link]
Applying big data solutions to national security problems [Link]
Applying image classification for nuclear forensics analysis [Link]
Develop capabilities for scalable geospatial analytics [Link]
Use remotely sensed imagery to identify and monitor the progression of wildfires [Link]
Analyze the resiliency of the electric power grid to prevent large‑scale outages [Link]
Optimize building efficiency using IOT and ICs data with automated demand‑response markets [Link]
Model climate change and impacts to civilization [Link]
Hunt for the existence of dark matter to understand the nature of the universe [Link]
This position is based in Seattle, WA, and requires an on‑site presence Monday through Thursday, with Friday as required by business needs.
Qualifications
PhD – OR – MS/MA – OR – BS/BA and 2 years of relevant experience
Preferred Qualifications
Degree in computer science, software engineering, or related field
2+ years of experience in designing or deploying large‑scale and high‑performance ETL pipelines and analytics
2+ years Python or other software development experience
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
Active Federal Q Clearance and ability to maintain such clearance
Hazardous Working Conditions / Environment Not Applicable
Additional Information This position requires the ability to obtain and maintain a federal security clearance. A security clearance background investigation includes review of your employment, education, financial, and criminal history, as well as interviews with you and your personal references, neighbors, and co‑workers to determine trustworthiness, reliability, and loyalty to the United States. The investigation also examines your foreign connections, drug and alcohol use, foreign influence, and overall conduct.
Requirements
U.S. Citizenship
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. In addition, applicants must be able to demonstrate non‑use of illegal drugs, including marijuana, for the 12 consecutive months preceding completion of the requisite Questionnaire for National Security Positions (QNSP).
Note: Applicants will be considered ineligible for security clearance processing by the U.S. Department of Energy if non‑use of illegal drugs, including marijuana, for 12 months cannot be demonstrated.
Testing Designated Position This position is a Testing Designated Position (TDP). The candidate selected for this position will be subject to pre‑employment and random drug testing for illegal drugs, including marijuana, consistent with the Controlled Substances Act and the PNNL Workplace Substance Abuse Program.
About PNNL Pacific Northwest National Laboratory (PNNL) is a world‑class research institution powered by a highly educated, diverse workforce committed to the values of Integrity, Creativity, Collaboration, Impact, and Courage. Every year, scores of dynamic, driven people come to PNNL to work with renowned researchers on meaningful science, innovations and outcomes for the U.S. Department of Energy and other sponsors. At PNNL, you will find an exciting research environment and excellent benefits including health insurance, and flexible work schedules. PNNL is located in eastern Washington State—the dry side of Washington known for its stellar outdoor recreation and affordable cost of living. The Lab’s campus is only a 45‑minute flight (or ~3 hour drive) from Seattle or Portland, and is serviced by the convenient PSC airport, connected to 8 major hubs.
Commitment to Excellence and Equal Employment Opportunity Our laboratory is committed to fostering a work environment where all individuals are treated with fairness and respect while solving critical challenges in fundamental sciences, national security, and energy resiliency. We are an Equal Employment Opportunity employer. Pacific Northwest National Laboratory (PNNL) considers all applicants for employment without regard to race, religion, color, sex, national origin, age, disability, genetic information (including family medical history), protected veteran status, and any other status or characteristic protected by federal, state, and/or local laws. We are committed to providing reasonable accommodations for individuals with disabilities and disabled veterans in our job application procedures and in employment. If you need assistance or an accommodation due to a disability, contact us at careers@pnnl.gov.
Drug Free Workplace PNNL is committed to a drug‑free workplace supported by Workplace Substance Abuse Program (WSAP) and complies with federal laws prohibiting the possession and use of illegal drugs. If you are offered employment at PNNL, you must pass a drug test prior to commencing employment. PNNL complies with federal law regarding illegal drug use. Under federal law, marijuana remains an illegal drug. If you test positive for any illegal controlled substance, including marijuana, your offer of employment will be withdrawn.
Security, Credentialing, and Eligibility Requirements As a national laboratory, PNNL is responsible for adhering to the Homeland Security Presidential Directive 12 (HSPD-12) and Department of Energy (DOE) Order 473.1A, which require new employees to obtain and maintain a HSPD‑12 Personal Identify Verification (PIV) Credential. To obtain this credential, new employees must successfully complete the applicable tier of federal background investigation post‑hire and receive a favorable federal adjudication. The tier of federal background investigation will be determined by job duties and national security or public trust responsibilities associated with the job. All tiers of investigation include a declaration of illegal drug activities, including use, supply, possession, or manufacture within the last 1 to 7 years (depending on the applicable tier of investigation). Illegal drug activities include marijuana and cannabis derivatives, which are still considered illegal under federal law, regardless of state laws.
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Responsibilities Solving the hardest problems in national security Protecting U.S. residents and visitors requires sophisticated technological solutions to counter increasingly complex, AI‑enabled threats. As adversaries deploy autonomous systems, coordinate multi‑domain operations, and leverage advanced AI capabilities, our capabilities must evolve to match this complexity. The PNNL national security mission employs our expert engineering talent—self‑driven innovators who thrive in ambiguity—to architect and deliver next‑generation AI systems, multi‑intelligence fusion platforms, and large‑scale analytics capabilities that form the backbone of our nation’s security infrastructure. You'll tackle problems that don't exist elsewhere, from detecting and preventing smuggling of drugs and contraband to correlating petabytes of multi‑modal intelligence data to solve national security problems. Every system, every algorithm, and every deployment you support directly strengthens our nation’s security posture. This work demands relentless drive—the kind of engineer who sees obstacles as puzzles to solve and treats mission success as personal responsibility.
What You’ll Build & Learn
AI Systems Development – Contribute to agentic AI implementations, work with LLM integrations, learn MLOps best practices on real‑world applications
Intelligence Platform Development – Build components for multi‑INT fusion systems, develop GEOINT processing tools, contribute to threat analysis platforms
Data Engineering – Develop data pipelines, build analytics workflows, contribute to cloud‑native data architectures
Professional Growth – Receive mentorship from senior engineers, participate in code reviews, learn enterprise software development practices
Technical Skills (We’ll Help You Grow)
Programming Foundation – Solid Python skills, experience with one additional language (C#/.NET, JavaScript, Java, or similar)
Platform Experience – Basic cloud experience (AWS, Azure, or GCP), familiarity with Linux environments
Development Practices – Understanding of version control (Git), exposure to CI/CD, basic Agile/Scrum experience
Data & Databases – Experience with SQL, basic understanding of data processing concepts
Eagerness to Learn – Interest in AI/ML technologies, geospatial systems, large‑scale data processing
What We Offer
Accelerated Learning – Work with cutting‑edge AI and data technologies while receiving guidance from industry experts
Meaningful Impact – See your contributions deployed in systems that protect national security
Career Growth – Clear advancement path with mentorship and technical skill development opportunities
Cutting‑Edge Technology – Hands‑on experience with the latest AI, cloud, and data engineering technologies
National Interest Project Examples
Detect and prevent smuggling of drugs and contraband at ports of entry [Link]
Develop large data pipelines to thwart funding for terrorists, nuclear proliferators, drug cartels, and rogue leaders [Link]
Applying big data solutions to national security problems [Link]
Applying image classification for nuclear forensics analysis [Link]
Develop capabilities for scalable geospatial analytics [Link]
Use remotely sensed imagery to identify and monitor the progression of wildfires [Link]
Analyze the resiliency of the electric power grid to prevent large‑scale outages [Link]
Optimize building efficiency using IOT and ICs data with automated demand‑response markets [Link]
Model climate change and impacts to civilization [Link]
Hunt for the existence of dark matter to understand the nature of the universe [Link]
This position is based in Seattle, WA, and requires an on‑site presence Monday through Thursday, with Friday as required by business needs.
Qualifications
PhD – OR – MS/MA – OR – BS/BA and 2 years of relevant experience
Preferred Qualifications
Degree in computer science, software engineering, or related field
2+ years of experience in designing or deploying large‑scale and high‑performance ETL pipelines and analytics
2+ years Python or other software development experience
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
Active Federal Q Clearance and ability to maintain such clearance
Hazardous Working Conditions / Environment Not Applicable
Additional Information This position requires the ability to obtain and maintain a federal security clearance. A security clearance background investigation includes review of your employment, education, financial, and criminal history, as well as interviews with you and your personal references, neighbors, and co‑workers to determine trustworthiness, reliability, and loyalty to the United States. The investigation also examines your foreign connections, drug and alcohol use, foreign influence, and overall conduct.
Requirements
U.S. Citizenship
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. In addition, applicants must be able to demonstrate non‑use of illegal drugs, including marijuana, for the 12 consecutive months preceding completion of the requisite Questionnaire for National Security Positions (QNSP).
Note: Applicants will be considered ineligible for security clearance processing by the U.S. Department of Energy if non‑use of illegal drugs, including marijuana, for 12 months cannot be demonstrated.
Testing Designated Position This position is a Testing Designated Position (TDP). The candidate selected for this position will be subject to pre‑employment and random drug testing for illegal drugs, including marijuana, consistent with the Controlled Substances Act and the PNNL Workplace Substance Abuse Program.
About PNNL Pacific Northwest National Laboratory (PNNL) is a world‑class research institution powered by a highly educated, diverse workforce committed to the values of Integrity, Creativity, Collaboration, Impact, and Courage. Every year, scores of dynamic, driven people come to PNNL to work with renowned researchers on meaningful science, innovations and outcomes for the U.S. Department of Energy and other sponsors. At PNNL, you will find an exciting research environment and excellent benefits including health insurance, and flexible work schedules. PNNL is located in eastern Washington State—the dry side of Washington known for its stellar outdoor recreation and affordable cost of living. The Lab’s campus is only a 45‑minute flight (or ~3 hour drive) from Seattle or Portland, and is serviced by the convenient PSC airport, connected to 8 major hubs.
Commitment to Excellence and Equal Employment Opportunity Our laboratory is committed to fostering a work environment where all individuals are treated with fairness and respect while solving critical challenges in fundamental sciences, national security, and energy resiliency. We are an Equal Employment Opportunity employer. Pacific Northwest National Laboratory (PNNL) considers all applicants for employment without regard to race, religion, color, sex, national origin, age, disability, genetic information (including family medical history), protected veteran status, and any other status or characteristic protected by federal, state, and/or local laws. We are committed to providing reasonable accommodations for individuals with disabilities and disabled veterans in our job application procedures and in employment. If you need assistance or an accommodation due to a disability, contact us at careers@pnnl.gov.
Drug Free Workplace PNNL is committed to a drug‑free workplace supported by Workplace Substance Abuse Program (WSAP) and complies with federal laws prohibiting the possession and use of illegal drugs. If you are offered employment at PNNL, you must pass a drug test prior to commencing employment. PNNL complies with federal law regarding illegal drug use. Under federal law, marijuana remains an illegal drug. If you test positive for any illegal controlled substance, including marijuana, your offer of employment will be withdrawn.
Security, Credentialing, and Eligibility Requirements As a national laboratory, PNNL is responsible for adhering to the Homeland Security Presidential Directive 12 (HSPD-12) and Department of Energy (DOE) Order 473.1A, which require new employees to obtain and maintain a HSPD‑12 Personal Identify Verification (PIV) Credential. To obtain this credential, new employees must successfully complete the applicable tier of federal background investigation post‑hire and receive a favorable federal adjudication. The tier of federal background investigation will be determined by job duties and national security or public trust responsibilities associated with the job. All tiers of investigation include a declaration of illegal drug activities, including use, supply, possession, or manufacture within the last 1 to 7 years (depending on the applicable tier of investigation). Illegal drug activities include marijuana and cannabis derivatives, which are still considered illegal under federal law, regardless of state laws.
#J-18808-Ljbffr