Lawrence Livermore National Laboratory · 10 hours ago
Full Stack Software Developer
Livermore, CA, USA
Full-time
Hybrid
Mid, Senior Level
$146K/yr - $223K/yrLawrence Livermore National Laboratory (LLNL) is dedicated to advancing science and technology to strengthen U.S. security and promote global stability. They are seeking a Full Stack Software Developer to design, develop, and maintain complex software systems that support mission-critical workflows, collaborating with scientists and engineers to deliver robust software solutions.
Information TechnologyMarket ResearchSecurity
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Contribute to the design, development, test, and maintenance of full stack software applications to both front-end user interfaces and back-end services. This includes contributing to the development of front-end applications using modern JavaScript frameworks such as React or Angular, and implementing and maintaining back-end services using Flask
Utilize Neo4J graph databases extensively, including:
Querying, extracting, and transforming graph nodes and relationships
Aggregating nodes and calculating derived values from graph-based data
Rendering graph-based data in alternative visual or structured representations to support analytical workflows
Support and enhance version control and change management workflows, including:
Tracking changes across evolving data and document versions
Participate in the implementation of mechanisms for diffing and comparing new document versions based on encoded graph structures
Refactor existing scripts and prototype code into modular, reusable, and maintainable software components, consolidating functionality where appropriate to improve reliability and extensibility
Contribute to the development of unit tests and supporting artifacts to ensure software quality, reliability, and maintainability to software quality assurance (SQA) documentation in accordance with project and organizational standards
Collaborate with multidisciplinary teams, including software developers, domain experts, and stakeholders, to gather requirements, participate in review designs, and provide high-quality software solutions to problems of moderate complexity
Apply best practices in software engineering, including code reviews, documentation, configuration management, and secure development practices
Perform other duties as assigned
Serve as a technical contact for complex software development efforts, providing technical direction and mentoring to junior and mid-level developers
Contribute to software quality assurance (SQA) activities, including defining testing approaches, reviewing test coverage, and ensuring compliance with project and organizational requirements
Perform technical risk assessment and mitigation, identifying potential issues related to architecture, performance, maintainability, or data integrity and proposing effective solutions
Qualification
Required
Ability to secure and maintain a U.S. DOE Q-level security clearance, which requires U.S. citizenship
Bachelor's degree in computer science, software engineering, or a related technical discipline, or an equivalent combination of education and relevant experience
Broad experience as a full stack software developer, with contributions to both front-end development (React or Angular frameworks, HTML, CSS, and/or JavaScript) and back-end systems including experience with back-end services using Flask (e.g., API design and integration with databases and external services.)
Comprehensive knowledge and broad experience with Neo4J or other graph databases, including querying, data modeling, and transformation of graph-based data
Proficiency with version control systems (e.g., Git), including branching strategies, change tracking, and collaborative development workflows
Broad experience developing unit tests and supporting software quality assurance activities
Proficient analytical and problem-solving skills, with the ability to understand moderately complex to complex requirements and translate into effective software solutions
Proficient written and verbal communication skills, necessary to effectively collaborate in a team environment and present and explain technical information, with the ability to document designs and communicate technical concepts
Advanced experience as a full stack software developer, including contributing to the design and implementation of complex, multi-component software systems
Demonstrated ability to define and implement testing strategies and to lead software quality assurance (SQA) efforts, including unit testing, integration testing, and documentation
Experience providing technical leadership and mentorship, including guiding other developers, reviewing designs and code, and promoting software engineering best practices
Ability to work independently on ambiguous or complex problems, exercising sound technical judgment and initiative to develop effective solutions
Preferred
Master's degree or PhD in applied data science, computer science, computer engineering, or a related technical field
Experience refactoring legacy or prototype code into production-quality, reusable software components
Experience developing or maintaining software in regulated or safety-related environments, including experience with DOE 10 C.F.R. Part 830–related software or '830 software'
Benefits
Employee Referral Bonus
401(k)
Relocation Assistance
Education Reimbursement Program
Flexible schedules (*depending on project needs)
Company
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory, a national security laboratory, provides transformational solutions to national security challenges.
Founded in 1952
5001-10000 employees
Funding
Current Stage
Late StageTotal Funding
$11.4MKey Investors
ARPA-EUS Department of EnergyDARPA
2023-11-21Grant
2023-08-14Grant
2022-09-19Grant
Leadership Team
G
Greg Herweg
Chief Technology Officer
D
David Shaughnessy
Deputy Chief Financial Officer
Recent News
2026-01-22
Research & Development World
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