Senior Software Engineer

Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory’s mission.

Pay Range

$168,780 - $214,032 Annually for the SES.3 level

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage.  An employee’s position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs.

Job Description

We have an opening for a Senior Software Engineer. You will be a member of the Cloud, AI Integration and Applications team where you will design, develop, and support cloud-based applications and AI integrations that serve the laboratory. You will contribute to both frontend and backend development for applications that enable governance, security, and effective use of cloud and AI services across the enterprise. Your work will play a critical role in enabling the workforce to securely and efficiently adopt modern technologies. This position is in the Information Technology Solutions (ITS) Division within the Computing Directorate, in support of LivIT. 

This position offers a hybrid schedule, blending in-person and virtual presence. You will have the flexibility to work from home one or more days per week.

You will

• Design, develop, and maintain full stack applications using modern frameworks, cloud-native services, and AI-assisted tools.
• Build intuitive, user-centered frontends using Angular or similar frameworks, and integrate with backend APIs.
• Lead architecture and design of applications and microservices using best practice design patterns and event-driven architectures.
• Implement and maintain CI/CD pipelines to support automated testing, deployment, and security enforcement.
• Design and optimize data models for both relational (e.g., PostgreSQL) and non-relational (e.g., DynamoDB) databases.
• Integrate applications with AWS services such as Lambda, S3, RDS, DynamoDB, SNS, and SQS.
• Collaborate with scientists, developers, and stakeholders to gather requirements, share knowledge, and communicate solutions.
• Manage multiple complex development efforts using agile methodologies while staying current with emerging technologies and AI capabilities.
• Perform other duties as assigned.

Qualifications

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
• Bachelor’s degree in computer science, engineering, or related field, or equivalent combination of education and experience.
• Significant background in developing software using object-oriented programming (e.g., Java, C#, .NET) with adherence to SOLID principles.
• Advanced proficiency in frontend development using frameworks like Angular, React, or Vue.
• Extensive knowledge of relational and/or non-relational databases (e.g., PostgreSQL, DynamoDB).
• Hands-on expertise with AWS core services (e.g., EC2, Lambda, S3, RDS, SNS, SQS, VPC, CloudWatch) or equivalent Azure offerings.
• Practical experience with infrastructure as code (e.g., CloudFormation, Terraform), CI/CD tools, version control systems, and use of AI-powered coding assistants like GitHub Copilot or ChatGPT.
• Strong communication and collaboration skills with the ability to adapt to rapidly evolving technologies.

Qualifications We Desire

• Proven experience translating business needs into technical requirements.
• Professional certifications in AWS or Azure.
• Familiarity with security frameworks and compliance standards such as NIST, CIS Benchmarks, or FedRAMP.

Additional Information

#LI-Hybrid

Position Information

This is a Career Indefinite position, open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory?

• Included in 2025 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement