Criticality Safety Engineer

We are excited to announce an opening for a Criticality Safety Engineer at Lawrence Livermore National Laboratory (LLNL). In this role, you will play a pivotal part in the design, development, and testing of nuclear equipment and systems that involve fissionable materials crucial to LLNL operations. You will also support various projects aligned with the Dep…

Join our dynamic team at Lawrence Livermore National Laboratory as a Lead Transmission Grid Engineer, where you will play a pivotal role in the design and optimization of high-voltage transmission systems. Leverage your expertise in electrical engineering to ensure reliable power delivery and advance the efficiency of our energy grid.

We are excited to announce multiple openings for a Control Systems Engineer at Lawrence Livermore National Laboratory (LLNL). In this dynamic role, you will be instrumental in crafting innovative engineering solutions to develop, implement, and sustain the control systems hardware at the National Ignition Facility (NIF) — the world’s most powerful pulsed laser system that recently contributed to a significant breakthrough in fusion research. With an impressive network of over 60,000 control points throughout the facility, many of NIF's subsystems rely on cutting-edge control technologies.Your contributions will enhance the engineering design, development, and upgrades of hardware systems, thereby improving performance and reliability. This position is housed within the Laser Systems Engineering and Operations (LSEO) Division of our Engineering Directorate.Please note that this position necessitates full-time, on-site work due to the hands-on nature of the responsibilities.This role will be filled at either entry or higher level depending on the candidate's knowledge and experience as assessed by the hiring team. Additional responsibilities will be assigned if the higher level is filled.Your Responsibilities Include:Operating under general direction while adhering to established procedures, utilizing foundational knowledge and standard techniques to address challenges and contribute to project milestones.Providing hardware and software solutions that underpin the definition, design, documentation, assembly, fielding, and maintenance of control systems, including utility systems, safety systems, and laser alignment diagnostics hardware.Engaging in daily activities that involve engineering support for the deployment, activation, commissioning, troubleshooting, and maintenance of control systems of limited complexity, employing standard methodologies.Assisting in the development and maintenance of system requirement specifications and control system designs under the guidance of senior engineers, ensuring alignment with project objectives and standards.Reducing project risks by participating in formal and informal design reviews, offering insights on technical issues, and implementing feedback from senior staff.Maintaining open communication with scientists, engineers, technicians, and designers to foster collaboration, provide updates on assigned tasks, and facilitate communication with end users.Supporting the NIF operations team by troubleshooting facility-related issues and planned work affecting control systems.Participating in the reactive maintenance on-call rotation as required.Performing other duties as assigned.Additional Responsibilities at the SES.2 Level:Working under limited direction with moderate responsibility, leveraging extensive knowledge and exercising independent judgment to determine methods and recommend improvements.

Role Overview Inertia is hiring a Senior Controls Engineer in Livermore. This role focuses on designing, developing, and implementing control systems for advanced engineering projects. The work blends a strong foundation in control theory with hands-on application to solve real-world challenges.

Join our innovative team at Lawrence Livermore National Laboratory as a Senior Semiconductor Laser Device Engineer. In this pivotal role, you will drive advancements in semiconductor laser technology, contributing to groundbreaking research and development projects. As a senior engineer, you will leverage your expertise to design, develop, and optimize high-performance laser devices.

Overview:Join Inertia as we seek talented Optical - Mechanical Engineers dedicated to enhancing the design and testing capabilities of high-power laser systems for our pioneering fusion energy program. Our goal is to develop the world's highest average power pulsed lasers, which will serve as the 'unit cell' of our future power plant. Collaborating with industry leaders, government entities, and academic institutions, we aim to construct a demonstrator beamline that achieves 10 kJ at 10 Hz with a 10% wall-plug efficiency, utilizing cutting-edge diode-pumped solid-state laser technology (DPSSL).Initially, you will be responsible for creating test stands for various system components, including optical and thermal evaluations of the amplifier, testing pulsed semiconductor laser diode arrays, assessing high damage threshold optics, and developing manufacturing methods for a diverse array of optical components.Primary Responsibilities:Your role will encompass some or all of the following:Design innovative, highly stable opto-mechanical systems for advanced high-power, high-energy laser systems.Conduct comprehensive opto-mechanical analyses to enhance pointing stability, mitigate thermal drift, and address mounting stresses.Implement heat flow, stress, and birefringence analyses using finite element analysis (FEA) and computational fluid dynamics (CFD) tools such as COMSOL and Abaqus.Generate detailed drawings with SolidWorks to facilitate the development and procurement of optical and mechanical components.Devise test plans for thorough evaluation of your designs.Collaborate with optical and systems engineering teams to deliver cohesive, integrated designs.Qualifications:Bachelor's or Master's degree in Mechanical Engineering, Optical Engineering, or a related discipline.Proven design experience with precision opto-mechanical products.Expertise in CAD and design-for-manufacturing methodologies.Practical experimental and prototyping skills.Salary & Benefits:The salary range for this position is $120,000 - $225,000. Actual compensation will be determined based on skills, experience, and education.We offer competitive compensation along with an exceptional benefits package, which includes medical, dental, and vision plans, company-paid holidays, a matching 401(k) plan, and more!

Role overview The Manufacturing Quality Engineer position at Lawrence Livermore National Laboratory centers on upholding and enhancing quality standards within the manufacturing process. This role plays a key part in supporting the laboratory’s dedication to precision and reliability in its operations. Main focus This position is responsible for monitoring manufacturing workflows, identifying areas for improvement, and ensuring that products meet established quality benchmarks. The work directly contributes to the lab’s high standards for accuracy and consistency. Location This role is based in Livermore.

As a Unified Communications Engineer, you will play a vital role in enhancing our communication systems and ensuring seamless collaboration across teams. Your expertise will be crucial in integrating, configuring, and optimizing unified communications solutions that support our mission-driven work.

Join Inertia as a Project Engineer, where you will play a crucial role in spearheading innovative engineering projects. You will work collaboratively with cross-functional teams to ensure the successful execution of engineering initiatives, from conception through to implementation.We are looking for individuals who are passionate about engineering and possess a strong problem-solving mindset. If you thrive in a dynamic environment and are eager to contribute to cutting-edge projects, this position is for you.

About GILLIG LLC GILLIG LLC designs and manufactures transit buses in Livermore, CA, serving communities across the United States. The company is known for its focus on environmental sustainability and social responsibility, with a strong reputation for quality, reliability, and service. All GILLIG buses are designed and built in-house, supporting the shift to zero-emission vehicles. Why Join GILLIG? Pioneers in eco-friendly mobility with battery electric, hybrid electric, near-zero CNG, and clean diesel transit buses Team-oriented, inclusive culture that values collaboration Over 132 years of stability and growth in the Bay Area Flexible schedules based on project needs Competitive compensation, company-paid medical premiums, a strong retirement plan, and a comprehensive benefits package Engineering at GILLIG The Engineering team develops and customizes heavy-duty, clean-technology transit buses. Engineers contribute to every stage, from initial design and analysis to testing, launch, and troubleshooting. The Mechanical Engineering group focuses on mechanical systems and components, such as chassis, HVAC, interior layouts, and powertrain integration. Team members work closely with other departments to meet regulatory standards, resolve production challenges, and deliver efficient, cost-effective designs. Role Overview: Mechanical Engineer - Interiors This position supports senior engineers in the design and industrialization of transit bus components, with an emphasis on interiors. The Mechanical Engineer will contribute to decisions at the vehicle, system, and component levels, working alongside experienced colleagues. Key responsibilities include providing engineering support, performing design analysis, and participating in the product development process for GILLIG's evolving bus lineup.

Lawrence Livermore National Laboratory is hiring a Superintendent to lead the Materials Engineering Division in Livermore. This is a leadership role focused on managing engineering projects and ensuring high standards for quality and safety throughout the division. Role overview The Superintendent oversees teams working on materials engineering initiatives. This position provides direction, fosters innovation, and supports continuous improvement in daily operations. The role requires a commitment to maintaining operational excellence while guiding staff and project outcomes. Key responsibilities Manage projects within the Materials Engineering Division Uphold quality and safety standards in all activities Guide and support engineering teams Encourage innovative approaches to materials engineering challenges Help sustain operational excellence across division efforts

The Senior Mechanical Project Engineer will take a lead role in managing complex engineering projects within the Nuclear Facility at Lawrence Livermore National Laboratory in Livermore. This position centers on guiding projects from initial concept through to completion, with a focus on mechanical systems that meet rigorous safety and performance standards. Role overview This role involves close collaboration with cross-functional teams to design, develop, and implement mechanical solutions. The work supports the Laboratory’s mission in national security and scientific research, requiring both technical depth and strong project management skills. What you will do Lead and manage mechanical engineering projects, overseeing all phases from planning to execution. Work with multidisciplinary teams to deliver systems that comply with strict safety and performance criteria. Apply advanced mechanical engineering principles to solve technical challenges in a nuclear facility setting. Requirements Extensive experience in mechanical engineering and project management. Demonstrated ability to lead complex technical projects. Strong collaboration and communication skills for working with diverse teams.

Overview:Inertia is on the lookout for talented Mechanical Engineers passionate about revolutionizing target fabrication for our cutting-edge fusion program. This role entails the design and optimization of precise assembly, bonding, and alignment processes for high-strength target components.Primary Responsibilities:Design and engineer tooling and fixtures aimed at precision target fabrication and assembly.Collaborate closely with materials scientists and process engineers to enhance target integrity and production efficiency.Conduct mechanical testing and reliability evaluations of bonding and assembly techniques.Assist in the development of automation systems for the mass production of fusion targets.Engage with vendors, external partners, and internal stakeholders to qualify materials and components.

Lawrence Livermore National Laboratory (LLNL) seeks a Senior Engineering Associate to join its team in Livermore. This role supports projects focused on national security and scientific research, blending technical contribution with teamwork. What you will do Apply engineering skills to advance ongoing projects. Collaborate with engineers and scientists from varied disciplines to achieve project objectives. Contribute to technical solutions that support LLNL's mission. Collaboration and growth Work takes place in a collaborative environment where team members interact with experts from many fields. The position offers opportunities to learn, grow professionally, and contribute to projects with national significance.

We are excited to announce an opportunity for a seasoned Lead Power Grid Dynamics Engineer. In this pivotal role, you will spearhead research initiatives focused on the analysis of electrical power grid infrastructure, emphasizing grid resilience. You will collaborate closely with the Cyber and Infrastructure Resilience (CIR) program within the Global Security (GS) Principal Associate Directorate, and engage in business development activities that support our growing research portfolio in electric grid infrastructure for the Department of Energy (DOE)'s Grid Modernization Initiative and the Department of Defense (DoD). This role is located within the Computational Engineering Division (CED) of the Engineering Directorate.Depending on the assignment, this position may offer a flexible hybrid schedule, allowing for a blend of in-person and virtual work, with potential opportunities to work from home on designated days.This position will be filled at either level based on your expertise and relevant experience, as assessed by our hiring team. Additional responsibilities will be assigned if selected at the higher level.You will be responsible for:Leading research in power grid dynamics modeling, transient stability, and electromagnetic transient (EMT) simulation.Managing and supporting intricate research projects with competing priorities while implementing advanced concepts in a multidisciplinary team setting.Collaborating with fellow LLNL scientists and engineers to translate research findings into practical applications within LLNL Global Security programs.Working closely with other CIR program area leads to develop the CIR program research roadmap.Establishing internal and external partnerships and contributing to securing funding to achieve program objectives.Co-authoring peer-reviewed scientific papers and reports, along with delivering presentations to diverse audiences.Performing other duties as assigned.At the SES.4 level, you will also:Effectively manage multiple projects/tasks and priorities for customers and partners to ensure timely completion.Lead complex projects, capitalizing on the skills of team members and mentoring junior staff while supporting recruitment efforts.Serve as a primary technical liaison with sponsors and partners, contributing to the development of new program business.

Join Inertia as a Laser Diode Manufacturing Engineer, where you will play a pivotal role in the production and optimization of advanced laser diode systems. This position is ideal for innovative engineers who are passionate about cutting-edge technology and thrive in a dynamic manufacturing environment.

Location: Livermore, CA About GILLIG GILLIG LLC is a leading manufacturer of transit buses in the United States. Our buses help drive environmental and social progress in communities nationwide. We design and build every GILLIG bus at our Livermore, California facility, from concept through final assembly. As the industry moves toward zero-emission vehicles, GILLIG continues to earn recognition for quality, reliability, durability, and customer support. Why Join GILLIG? Work with a team advancing sustainable mobility through battery electric, hybrid electric, near-zero CNG, and clean diesel buses. Inclusive, family-oriented workplace culture. Over 132 years of history and stability in the Bay Area. Flexible scheduling options, depending on project needs. Competitive pay, company-paid medical premiums, a strong retirement plan, and comprehensive benefits. Engineering at GILLIG The Engineering department develops, customizes, and configures clean technology heavy-duty transit buses. Our work connects communities, eases congestion, and supports sustainability. Engineers at GILLIG contribute to design, analysis, testing, launch, and troubleshooting across a range of technical areas. The Mechanical Engineering team handles the design, development, and optimization of mechanical systems and components. This includes chassis, HVAC systems, interior layouts, and powertrain integration. The team focuses on safety, durability, and performance, and works closely with other departments to meet regulatory standards, address production challenges, and deliver cost-effective solutions for heavy-duty transit buses. Role Overview: Mechanical Engineer – Body & HVAC This Mechanical Engineer position supports senior engineers in the design and industrialization of components for GILLIG’s evolving product line. The role offers a chance to influence vehicle, system, and component design decisions while working alongside experienced engineers. Key responsibilities include: Assisting with transit bus design projects. Supporting the development of components and systems, with a focus on body and HVAC. Helping to resolve technical challenges as they arise. Contributing to innovative design solutions for GILLIG buses.

GILLIG LLC designs and builds transit buses in Livermore, CA, with a focus on zero-emission and clean technology vehicles. The company has served the Bay Area and beyond for over 132 years, maintaining a reputation for quality, reliability, and customer support. The Engineering team works on developing and customizing heavy-duty transit buses, emphasizing reliability, environmental impact, and community needs. Projects span design, analysis, testing, and launch, with engineers collaborating across technical disciplines. Role overview The Associate Product Validation Engineer joins the Validation Engineering team, which is responsible for testing, simulating, and evaluating vehicle systems and components. This role supports senior validation engineers by assisting with engineering tasks and problem-solving, as well as providing hands-on help during validation activities. Work includes contributing to both design verification (DV) and production validation (PV) testing at the vehicle level. This position is based fully on-site at the Livermore, CA facility. The Associate Product Validation Engineer reports to the Manager of Validation and works closely with experienced engineers for guidance. What you will do Assist senior validation engineers with day-to-day engineering tasks and technical problem-solving Participate in hands-on testing and validation of vehicle systems and components Support design verification and production validation activities for GILLIG’s transit bus product line Work environment and benefits On-site role at the Livermore, CA headquarters Flexible work schedules tailored to project needs Inclusive, family-oriented workplace culture Competitive pay, company-covered medical premiums, strong retirement plans, and comprehensive benefits

Lawrence Livermore National Laboratory (LLNL) seeks a Senior Systems Project Engineer to design, implement, and manage complex systems projects. This position supports initiatives that advance national security and scientific research. Role overview The Senior Systems Project Engineer works closely with multidisciplinary teams, contributing technical expertise and project leadership. The focus is on delivering solutions that meet demanding requirements and support LLNL’s mission. Key responsibilities Design and oversee implementation of advanced systems projects Manage project timelines, resources, and deliverables Collaborate with scientists, engineers, and other professionals to achieve project goals Impact This role directly supports LLNL’s commitment to innovation in national security and scientific progress by ensuring the success of critical systems projects.

Join our team at Lawrence Livermore National Laboratory (LLNL) as a Senior Mechanical Engineer. We are seeking talented individuals to contribute to both new and ongoing projects that are critical to national security. You will play a vital role in providing nuclear weapon engineering design expertise, systems engineering, experimental device design, fabrication and assembly, and much more.Your work will involve collaboration with colleagues from various National Laboratories, Production Agencies, the National Nuclear Security Administration (NNSA), and the Department of Defense (DoD).Positions are available within the Defense Technologies Engineering Division (DTED), where we support Strategic Deterrence Programs. Depending on your assignment, this role may offer a hybrid schedule, allowing you to blend in-person work with remote flexibility.These positions can be filled at different levels based on your expertise and experience, and additional responsibilities will be assigned if you are hired at a higher level.Your Responsibilities:Provide technical expertise in mechanical and electromechanical design.Conduct research on structural, thermal, hydraulic, or dynamics modeling of mechanical systems.Create advanced conceptual and detailed designs in support of ongoing projects.Prepare health and safety documentation in line with Integrated Safety Management (ISM) requirements and engage in design and Management Prestart Reviews.Coordinate project interfaces and collaborate with both internal and external organizations.Lead and offer guidance to multidisciplinary project teams within a dynamic environment.Perform other duties as assigned.Additional Responsibilities for SES.4 Level:Establish project vision and strategy, influencing the technical direction for yourself and others.Provide expert capability in complex mechanical design and analysis.