166 junior engineer jobs found in San Francisco, CA

About the Company We are a stealth-mode battery startup developing cutting-edge battery technology. Our mission is to revolutionize battery technology to accelerate the global transition to clean energy. By leveraging innovative materials and advanced manufacturing techniques, we are building the future of sustainable energy. Can't find the company name? It's not you, it's us! We're really excited about the potential of our technology, product, and mission, and have chosen to remain in stealth mode. If the job description piques your interest, please apply. If your skillset is aligned with what we're looking for, the team will reach out to schedule your interview and tell you a bit more about us (e.g. who we are). Role We are seeking a Mechanical Design Engineer to support the design and development of structural battery hardware (e.g., enclosures, trays, lids/covers) and/or provide engineering support equipment (fixtures, test-bucks, test setups, and prototype/demo...

As a Senior Project Engineer, you'll be responsible for promoting site and office safety, and assist the Project Management team in the planning, coordinating, and administration of their assigned job to ensure the work is completed on time, within budget, while adhering to Webcor's quality standards. ESSENTIAL DUTIES AND RESPONSIBILITIES Promotes and adheres to safety best practices on the jobsite. Assists the Project Manager and team members in the planning, coordination, and administration of assigned projects/scopes of work. This includes areas such as RFI's, submittals, contracts, change orders, purchasing, scheduling, and progress reports. Assists in bidding and buyout activities such as scope delineation, scope letter development, bidder outreach, and bid leveling. Reviews field inspection reports and communicates deficiencies to supervisor and responsible Superintendent. Responsible for record drawings, including review and posting of document changes. Creates and...

As a team, we've launched five satellites into orbit, signed ten commercial deals worth over $1 billion in revenue, raised over $750 million from top global investors, and recruited a team of over 400 world-class engineers. We all work out of our (legendary) San Francisco office, which was once used to build ships during the World Wars. Our satellites, which operate from geostationary orbit (GEO), weigh only 400 kg and utilize a proprietary software-defined radio payload. Each satellite can connect over two million people, and we're very excited for the impact we'll soon have in the Philippines, Mexico, and more! Backed by substantial funding and a passionate, collaborative team, we offer a rewarding work environment where you'll learn and make a significant impact, no matter where you are in your career. Senior Mechanical Engineer As an Astranis Senior Mechanical Engineer you will own the complete lifecycle of various subsystems on our spacecraft. Whether it is incremental...

Company Overview Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables. Job Summary The Reactor Vessel System team is seeking a highly motivated Senior Engineer to join the growing Reactor Systems department. In this role, you will have the opportunity to work directly on the design, analysis, integration, fabrication, and deployment of reactor vessel structures, systems, and components for a first-of-a-kind fluoride-salt-cooled, high-temperature reactor. Reporting directly to the Head of Reactor Systems, the position will support the...

Company Overview Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world's transition to clean energy, with the ultimate goal to dramatically improve people's quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables. Job Summary The Reactor Vessel Auxiliary Systems team is seeking a highly motivated Senior Engineer to join the growing Reactor Systems department where you will have the opportunity to work directly on the design, integration, and assembly of the structures, systems, and components (SSCs) within the reactor cavity in a first-of-a-kind FHR. In this role, you will manage and coordinate the detailed layout of reactor cavity components including routing of fuel, salt,...

Do you want to help engineer what's next? Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients' most complex challenges. We leverage our collective and diverse experience, technical expertise, and industry knowledge of structures and building enclosures, advanced analysis, performance & code consulting, and applied science & research to deliver unrivaled, comprehensive solutions that drive superior performance. With 800 employees in offices nationwide, SGH's industry-leading teams constantly seek to advance the meaning of what's possible. What makes careers at SGH so special? The only way to advance is to question and explore. Every member of the SGH team is both a learner and an educator, committed to advancing ourselves, our teams, and our industry. Together we are creating a community that never settles for what is but always seeks what could be. There are many reasons to love SGH: Our Work:...

Terraphase offers cost-effective solutions to complex environmental and engineering challenges. We listen to our clients and focus on their needs. We apply technical expertise and keen awareness of the regulatory framework to achieve our clients' project goals and objectives. The combined talent and experience of Terraphase's engineers, geologists, and scientists form the foundation for a comprehensive environmental management approach. The Role Terraphase Engineering is seeking a Senior Project or Associate Engineer to join our team in our Oakland or Pleasanton, CA offices. In this role, the successful candidate will be responsible for the completion of engineering deliverables (design details, drawings, calculations, and reports) and management duties for various investigation and design projects. Key Responsibilities: At the Senior Project level, the successful candidate will deliver the key responsibilities described below at the deliverable or project level under the...

Terraphase offers cost-effective solutions to complex environmental and engineering challenges. We listen to our clients and focus on their needs. We apply technical expertise and keen awareness of the regulatory framework to achieve our clients' project goals and objectives. The combined talent and experience of Terraphase's engineers, geologists, and scientists form the foundation for a comprehensive environmental management approach. The Role Terraphase Engineering is seeking a Senior Project or Associate Engineer to join our team in our Oakland or Pleasanton, CA offices. In this role, the successful candidate will be responsible for the completion of engineering deliverables (design details, drawings, calculations, and reports) and management duties for various civil engineering projects. Key Responsibilities: At the Senior Project level, the successful candidate will deliver the key responsibilities described below at the deliverable or project level under the...

About Pacific Fusion Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. We are rapidly designing and building a pulser-driven inertial fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders. Why This Role Matters Pacific Fusion is seeking an exceptional Senior Mechanical Engineer to help create the...

About Pacific Fusion Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. We are rapidly designing and building a pulsed magnetic fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders. Why This Role Matters Pacific Fusion is seeking an exceptional Senior Mechanical Engineer to join our dynamic team...

BKF is a multi-service infrastructure consulting firm providing civil engineering and surveying services across California, the Pacific Northwest, and beyond. With offices throughout California and the Portland area, BKF has served transportation, water resources, land development, government, and federal clients for over 110 years. At BKF, you'll find a unique opportunity to grow your career with intention. Our culture values professional autonomy, innovation, and meaningful collaboration across offices. We are proud to be recognized with the Great Place to Work certification for the second year in a row. We're seeking a Senior Project Engineer with expertise in transportation and civil infrastructure to support our growing Bay Area offices. This mid-level role is ideal for a California-licensed PE with 4+ years of experience who enjoys leading technical delivery, mentoring junior staff, and contributing to impactful public infrastructure projects. You'll work closely with...

About Pacific Fusion Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. We are rapidly designing and building a pulser-driven inertial fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders. Why This Role Matters Pacific Fusion is seeking an exceptional Senior Mechanical Engineer to help create the...

About Pacific Fusion Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. We are rapidly designing and building a pulsed magnetic fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems. Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders. Why This Role Matters Pacific Fusion is seeking an exceptional Senior Mechanical Engineer to join our dynamic team...

Job Description General Job Description: This position is responsible for independently delivering structural engineering services in support of mechanical, HVAC, and piping systems within ACCO's Design-Build project environment. The Senior Structural Engineer will support projects from conceptual design through construction completion, ensuring structural integrity, code compliance, and constructability of mechanical system installations. This role works closely with project management, construction teams, and other engineering disciplines to develop practical structural solutions that support installation of equipment, ductwork, piping, and related mechanical infrastructure. The position also provides technical leadership and mentorship to engineering staff while contributing to the continued growth of structural engineering capabilities within the organization. Essential Duties & Responsibilities Expert in project planning, coordination, and execution of...

Senior Switchgear Electrical Engineer - Medium & Low Voltage (MV/LV) Role Summary The Senior Switchgear Engineer (MV/LV) is responsible for the design, engineering, validation, and technical leadership of medium- and low-voltage switchgear systems. This role provides subject-matter expertise across the full product lifecycle-from concept and specification through manufacturing, testing, installation support, and commissioning-while ensuring compliance with applicable standards, customer requirements, and safety regulations. Key Responsibilities Technical & Engineering Lead the design and engineering of MV (typically 1 kV-36 kV) and LV (≤1 kV) switchgear systems, including air-insulated (AIS) and gas-insulated (GIS) solutions where applicable. Develop electrical schematics, single-line diagrams, wiring diagrams, GA drawings, and protection & control philosophies. Specify and select components such as circuit breakers, contactors, relays, busbars, CTs/VTs,...

BKF is a multi-service infrastructure consulting firm providing civil engineering and surveying services across California, the Pacific Northwest, and beyond. With offices throughout California and the Portland area, BKF has served transportation, water resources, land development, government, and federal clients for over 110 years. At BKF, you'll find a unique opportunity to grow your career with intention. Our culture values professional autonomy, innovation, and meaningful collaboration across offices. We are proud to be recognized with the Great Place to Work certification for the second year in a row. We're hiring a Senior Civil Engineer with a strong background in land development, civil infrastructure. This role spans multiple Bay Area locations and involves leading multidisciplinary teams through complex site development projects from concept to completion. Candidates should hold a Professional Engineering license and demonstrate a background in AutoCAD and Civil 3D....

Overview: Help Shape the Future of Sustainable Building Performance at HGA as a Senior Building Performance Engineer on the West Coast! HGA, an award-winning architectural, engineering, and planning firm , is seeking a talented and ambitious Senior Building Performance Engineer to help lead and grow HGA's Building Performance presence on the West Coast . If you are passionate about optimizing energy performance and ensuring sustainable, high-performing systems, this is the role for you. It is expected this role will focus on the energy performance of buildings throughout the design and post-construction phases. You will be integral in commissioning and optimizing HVAC systems, air and water distribution systems, building automation systems, electrical systems, plumbing systems, and other related equipment to ensure optimal performance across diverse, impactful projects. What You'll Do: Lead the commissioning and optimization of building systems, including HVAC,...

Sr. Engineer, Mechanical (Building HVAC) About Us At AlfaTech we believe in more than just engineering solutions; we believe in promoting a culture of agility, collaboration, and inclusion. As a leading consulting engineering firm, we provide thoughtful engineering design that is technologically forward thinking, innovative, and environmentally conscious, ensuring that our contribution to our built environment is flexible, sustainable, and lasting across all the market segments we serve. If you're driven by a passion for engineering, innovation, and making a difference, if you thrive on challenges and adapt quickly to change, and if you are looking to be part of a dynamic team of empowered, smart, energized, professionals, then AlfaTech is the place for you. Job Summary In this role, the Senior Engineer will act as the Lead Project Engineer under the Department Head's supervision, and work on a variety of projects, from small to large, providing a very high level of technical...

Sr. Engineer, Electrical About Us At AlfaTech we believe in more than just engineering solutions; we believe in promoting a culture of agility, collaboration, and inclusion. As a leading consulting engineering firm, we provide thoughtful engineering design that is technologically forward thinking, innovative, and environmentally conscious, ensuring that our contribution to our built environment is flexible, sustainable, and lasting across all the market segments we serve. If you're driven by a passion for engineering, innovation, and making a difference, if you thrive on challenges and adapt quickly to change, and if you are looking to be part of a dynamic team of empowered, smart, energized, professionals, then AlfaTech is the place for you. Job Summary In this role, the Senior Engineer will assist the Lead Project Engineer or Project Manager, and work on a variety of projects, from small to large, providing a very high level of technical leadership. This individual is...

About Mytra: We're creating an entirely new way to solve the most ubiquitous problem in industry - moving and storing material. We're applying robotics and distributed software to create a new class of product for this $1T market. We're focused on the supply chain industry first. The industry is in a massive bind with the continued growth of e-commerce, sharp rise in costs, and supply chain disruptions. What has been a "sleepy" industry for decades is now at the epicenter of sustaining the global economy. About the role As a senior Engineering Technician on Mytra's Bot Prototype team, you'll own our hardest prototype builds and repairs end-to-end, the ones with incomplete or evolving work instructions, multi-domain failures, and real ambiguity. Our team builds, maintains, and repairs the fleet of prototype bots, subassemblies, and test assets that let Engineering validate designs quickly, and we need an experienced, self-directed technician who can drive builds to...