Software Developer-Mid Career

LLNL • Livermore, CA

22h • Hybrid

About The Position

We have an opening for a Software Developer in the Computing Directorate, matrixed to the National Atmospheric Release Advisory Center (NARAC) Program. You will create software applications in support of mission critical emergency planning and response efforts related to atmospheric releases of hazardous materials. You will work with a collaborative multi-disciplinary team of talented software developers, health physicists, and meteorologists. Your primary responsibilities will be to own and contribute to the design, development, deployment and maintenance of software applications. This position is in the Global Security Computing Applications Division (GS-CAD) within the Computing Directorate, matrixed to Global Security's N Program. This position offers a hybrid schedule, blending in-person and virtual presence. You will have the flexibility to work from home up to 2 days per week. This position will be filled at either the SES.3 or SES.4 level based on knowledge and related experience, as assessed by the responsibilities outlined below.

Requirements

• This position requires an Active Department of Energy (DOE) Q-level clearance or an active Top-Secret clearance issued by another U.S. government agency at the time of hire.
• Bachelor’s degree in Computer Science, Computer Engineering, or a technical related discipline, or an equivalent combination of education and professional experience.
• Advanced experience in object-oriented programming using high-level languages such as, C++ or Java.
• Advanced experience applying solid development standards to write clean, maintainable, scalable, and secure code.
• Advanced experience with Git or equivalent modern version control systems.
• Advanced analytical skills and an enthusiastic, creative approach to solving complex technical challenges.
• Strong interpersonal skills, with a proven ability to translate complex technical concepts for various audiences, users, and management.
• Advanced verbal and written communication skills necessary to effectively collaborate in a team environment and present and explain technical information and provide advice to management.
• Expert-level experience architecting, deploying, and maintaining enterprise-level software systems from the ground up.
• Expert-level experience in object-oriented programming using high-level languages such as, C++ or Java.
• Proven ability to work highly independently under consultative direction translating high-level, broadly defined requirements into concrete execution plans.
• Advanced presentation and communication skills necessary to advise senior management and influence technical direction.

Nice To Haves

• Experience with modern web frameworks such as Angular, React, or Vue.
• Experience building scalable APIs with frameworks like Java Quarkus, Spring Boot, or Node.js/Express.
• Practical knowledge of CI/CD pipelines and deployment containerization using Jenkins, Docker, or Kubernetes.

Responsibilities

• Collaborate in the development and implementation of robust, modern desktop and web applications using industry-standard software engineering practices and high-level programming languages.
• Guide the completion of projects and contribute in all phases of the software development lifecycle (SDLC), from initial requirement gathering and system design to deployment, testing, and continuous optimization.
• Conduct thorough peer code reviews and author high-quality technical documentation for both internal team members and end-users.
• Collaborate closely with multi-disciplinary teams (including scientists and domain experts) to align software deliverables with key organizational and project objectives.
• Interact with fellow developers, management, and sponsors to share insights, evaluate emerging technologies, and recommend architectural improvements.
• Provide swift, creative technical solutions to complex user requests and critical operational requirements.
• Perform other duties, as assigned.
• Manage multiple highly complex, parallel tasks and balance stakeholder priorities while effectively leveraging and mentoring team members to meet tight deadlines.
• Develop the design and implementation of large-scale software systems using advanced object-oriented analysis and modern design patterns.
• Author technical proposals, progress reports, and monthly briefs for project sponsors and stakeholders.
• Diagnose and resolve highly complex, ambiguous technical challenges by analyzing both tangible and intangible operational factors.

Benefits

• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (depending on project needs)

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level