Limelight Steel is on a mission to eliminate emissions from iron and steelmaking and build a brighter future. 8% of global CO2 emissions come from current fossil-based steelmaking processes - the largest source of industrial emissions today. Limelight Steel's electrified ironmaking technology has the potential to eliminate those emissions, significantly reduce energy use, and produce iron for cheaper than fossil-based methods. We are a startup in Oakland, CA, backed by industry-leading climate tech investors, looking to grow our team. We are committed to building a diverse and courageous team of people motivated to make a positive impact on the world. We want to hire kind and supportive teammates who have the perseverance to achieve our audacious goal of decarbonizing steel. Position Summary As a Senior Mechanical Engineer at Limelight Steel, you will play a key role in the design and build of a laser furnace pilot plant that produces tonnes of clean metal and scales to a million tonne/year commercial plant. Roles & Responsibilities • Lead the mechanical design, build, test, and integration of key laser furnace sub-systems (e.g. material feeding & storage, vacuum & gas handling, and heating & cooling) • Create detailed CAD models & drawings, process flow diagrams, and piping & instrumentation diagrams • Interface with manufacturers, vendors, machine shops, and contractors to procure, make, and install components. • Provide technical oversight during commissioning and troubleshooting Key Qualifications • B.S. in mechanical engineering or related field, and 5+ years of industry experience • Strong CAD modeling and GD&T skills • Hands-on experience designing, building, and troubleshooting prototypes and industrial equipment • Demonstrated experience managing multiple vendors and contractors within budget and schedule. • Experience with process equipment, including gas handling (industrial gas storage, transport, blowers, vacuum pumps) and thermal management systems (chillers, heat exchangers, fluid plumbing) • Fundamental understanding of heat and mass transfer, fluid mechanics, and solid mechanics • Ability to think through problems from first principles • Experience working independently, as well as in team-oriented and fast-paced environments Additional Qualifications Desired • Industrial materials or metals processing experience • High-temperature furnace experience Full Time Employee Benefits • Competitive stock option package • Comprehensive health benefits that include: • Full premium coverage for PPO Gold for employees with 80% coverage for dependents • Full premium coverage for Vision and Dental for employees • Generous time-off schedule • 20 days paid time off • 10 holidays (personalized to the holidays you observe) • Sustainable 401(k) retirement savings plan with company match • 2x weekly catered team lunches • A team of curious, passionate, kind, and courageous people committed to eliminating industrial emissions that contribute to climate change • Unparalleled opportunities for growth, leadership, and project ownership in a dynamic and rapidly-growing startup company
See More Details >>Job Description: We are seeking a Mechanical Engineer with a strong background in project engineering, design, and construction. This role requires both technical knowledge and a problem-solving mindset, ideally with experience in utility or power generation environments. Must-Have Requirements: • 4-year BS Degree in Engineering from an accredited curriculum • 5+ years of experience in project engineering, design, and construction • Current PE license holder • (If not a current CA PE license holder, candidate will be evaluated at the Associate level; once licensed, role will be adjusted to journey level) • Proven track record of taking ownership of problems and delivering solutions • Experience with: • Large/major rotating equipment • Large pressure valves • Water delivery systems • Utility experience of some kind • PowerGen/Fossil/Steam/Turbine systems (nice to have) Nice-to-Have Qualifications: • MS Degree in Engineering or Business (in addition to BS in Engineering) • Familiarity with ISO 55001 Asset Management standards • Knowledge/experience with: • Hydro and mechanical equipment (rotating equipment, turbines, valves, ASME pressure vessels) • Hydropower electrical systems (synchronous generators, exciters, transformers, HV/MV breakers, grounding systems) • Asset planning, FMEA, risk and condition assessments • Understanding of the power generation industry, including design, construction, and operation of rotating machines • Experience interpreting applicable codes, standards, regulations, and practices • Commitment to professional development via industry associations, workshops, technical publications, and continuing education
See More Details >>Mechanical Engineering Co-op - Fall 2025 through Summer 2026 Company Description Gentiam Consulting is a leader in electric and hybrid powertrain systems for sustainable and high-performance applications. Our team is driven by innovation in energy management and system integration, providing adaptable, safe, and efficient solutions across the transportation sector. We believe in empowering engineers to drive advancements in hybrid and electric powertrain technology. If you are passionate about engineering challenges in high-power applications and are ready to apply your expertise in mechanical design, we encourage you to join us. Job Description We are looking for a Mechanical Engineering Graduate Student with experience in high-power electrical equipment, CAD design, and hands-on testing. This role involves mechanical system integration, thermal management, and test rig development to support powertrain solutions. The candidate will work closely with multi-disciplinary teams to design, analyze, and optimize powertrain components for maximum performance and reliability. Duties and Responsibilities • Design and optimize mechanical structures and electrical components for high-power applications, ensuring robustness, efficiency, and safety. • Develop and test thermal management solutions, applying simulation tools for thermal and structural analysis. • Perform CAD modeling and design using software like SolidWorks, managing both integration and detailed component design. • Build, maintain, and upgrade test stands and rigs for component performance evaluation and reliability testing. • Conduct FEA and thermal analysis to validate designs under varying operational conditions. • Collaborate with cross-functional teams, including electrical and control engineers, to ensure seamless hardware-software integration. • Document and report test results, design improvements, and overall project progress. Knowledge and Skills • Proficiency in CAD software (e.g., Onshape, SolidWorks, NX) for detailed mechanical design and system integration. • Experience with high-power systems, especially in mechanical/electrical component integration and testing. • Strong understanding of thermal management and structural analysis using tools like Simscale, Simscape, or Femap. • Ability to design and execute tests, troubleshoot issues, and optimize designs based on performance data. • Familiarity with control systems and hardware-software interfacing is an asset. • Strong analytical, problem-solving, and communication skills. • Detail-oriented and effective at working collaboratively in a multi-disciplinary environment. • Excellent people and communication skills, both written and verbal are essential • Exceptional attention to detail and organizational skills required • Ability to creatively and independently problem solve is an asset • Digitally inclined, with a proficiency with MS Office (Powerpoint, Word, Excel, Outlook, etc.), Google tools (GSuite, Sheets, Docs, Gmail, Calendar, etc.), and project/task management tools (like Asana). • Knowledge of and interest in hybrid and electric vehicle powertrains, including experience with high-voltage systems, motors, energy storage, and power management, is preferred but not required. Eligibility Requirements • Currently enrolled as a graduate student in an accredited Mechanical Engineering program (PhD preferred; Master's and Bachelor's acceptable) • Experience with high-power equipment, CAD design, and integration within mechanical and electrical systems • Authorized to work in the United States Work Term • Length: Temporary, 12 months Job Types: Full-time, Temporary, Internship, Apprenticeship Pay: $25.00 - $28.00 per hour Expected hours: 40 per week Benefits: • Flexible schedule • Relocation assistance Schedule: • Day shift • Monday to Friday Work Location: In person
See More Details >>Embarking on a career in the mechanical trade in Oakland, CA, often begins with a structured apprenticeship, which blends practical experience with theoretical knowledge, allowing individuals to earn while they learn. Apprenticeships typically span three to four years, demanding extensive training under skilled professionals. According to the U.S. Bureau of Labor Statistics, there are approximately 10,959 mechanical trade professionals in California, with wages averaging around $2,308 per week. Trade schools, unions, and specialized training programs provide aspiring mechanical trade professionals with opportunities to gain the necessary skills and certifications, leading to a rewarding career with strong earning potential—often exceeding $115,000 annually for experienced professionals.
