Software Developer (Scientist 2)

The Nuclear Systems Group (NEN-5) conducts multi-disciplinary systems engineering and analysis across various projects impacting advanced nuclear reactor designs, nuclear nonproliferation, stockpile stewardship, and international treaty monitoring. NEN-5 collaborates across LANL’s Global Security Directorate, other national laboratories, and industry to meet emerging global nuclear energy needs and safe operations.

The Applied Science and Engineering for Nuclear Technologies (ASENT) team in the Nuclear Systems Group (NEN-5) at Los Alamos National Laboratory is seeking a talented Software Developer (Scientist 2) to support our critical mission in nuclear safeguards, nonproliferation, and nuclear security applications.

ASENT develops software used for national security and institutional purposes, as well as for international safeguards and nuclear nonproliferation applications. We’re looking for a versatile full-stack developer who thrives in both creating new solutions and modernizing legacy systems.

As a Scientist 2, you will:

• Develop new software for a wide-ranging customer base both internal and external to the laboratory
• Maintain and modify existing software based on customer needs
• Write, test, and deploy applications using modern development methodologies
• Collaborate with cross-functional teams to define work scope and software requirements
• Work independently or within SCRUM teams to ensure continuous product improvement
• Write proposals for new and continuing work
• Promote a collaborative, respectful, and engaging team culture
• Embody a “growth mindset” by welcoming feedback and supporting endeavors outside your primary expertise
• Identify strategic partners who could benefit from NEN-5’s multi-disciplinary expertise
• Undertake periodic domestic and/or international travel based on programmatic needs

• Significant knowledge/understanding of software engineering principles, design patterns, and appropriate standards
• Experience with modern software development methodologies such as Agile, DevOps, and SCRUM and the appropriate tools and processes
• Knowledge/experience with a minimum of three of the following:
• C# and ASP.NET, C++, JAVA, JavaScript and Python languages
• JSON, YAML or Message Pack serialization languages
• ASP.NET Core, Blazor, Node.js, React, FAST Frameworks
• MCV, MVP, Microservices, and Event Driven Architecture
• Knowledge/experience with database design, security strategies, and component integration
• Knowledge of developing and maintaining software within a complex, high-security environment
• Ability to navigate strict compliance requirements, controlled networks, and rigorous access protocols
• Ability to understand, maintain, and modernize legacy systems (Fortran, C, older Python, etc.) working with established scientific codebases that span decades
• Knowledge/understanding of hardware and operating systems including:
• System architecture
• Network infrastructure
• Client-server principles
• Knowledge/understanding of hardware and software integration and testing

Professional Skills

• Ability to collaborate and interact effectively with a wide range of personnel
• Demonstrated oral and written communication skills
• Ability to organize, prioritize, and follow through to completion on multiple tasks
• Record of commitment to safety, security, compliance, quality, and foster a respectful and fair work culture.

Clearance Requirement

• Ability to obtain a DOE Q-level clearance, which typically requires U.S. Citizenship

Education & Experience: Positions requires a Bachelor’ degree in a STEM field from an accredited college and university and 4 years of related experience, or equivalent experience directly related to the occupation. A degree in Computer Science, Computer engineering, Data Analytics, or Information Technology preferred., * Demonstrated experience developing innovative advanced concepts, theories, methods, techniques, and approaches to address specialized problems

• Demonstrated experience leading technical decision-making at task level within a project; making decisions and/or recommendations that influence the achievement of key programmatic objectives
• Demonstrated knowledge and utilization of CI/CD Practices
• Demonstrated ability in designing, building, and maintaining production-ready RESTful APIs using Node.js, Python, JAVA, and ASP.NET.
• Demonstrated ability to secure data in transit utilizing OAuth2.0
• Demonstrated knowledge of AI ethics, bias mitigation, and explainable AI techniques while deploying AI models in real-time applications
• Ability to mentor junior staff and students as they develop as programmers
• Active Q Clearance, *Eligibility requirements: To obtain a clearance, an individual must be at least 18 years of age; U.S. citizenship is required except in very limited circumstances. See DOE Order 472.2 for additional information.

Located in beautiful northern New Mexico, Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. Our generous benefits package includes:

• PPO or High Deductible medical insurance with the same large nationwide network
• Dental and vision insurance
• Free basic life and disability insurance
• Paid childbirth and parental leave
• Award-winning 401(k) (6% matching plus 3.5% annually)
• Learning opportunities and tuition assistance
• Flexible schedules and time off (PTO and holidays)
• Onsite gyms and wellness programs
• Extensive relocation packages (outside a 50 mile radius)

Additional Details

Directive 206.2 - Employment with Triad requires a favorable decision by NNSA indicating employee is suitable under NNSA Supplemental Directive 206.2. Please note that this requirement applies only to citizens of the United States. Foreign nationals are subject to a similar requirement under DOE Order 142.3A.