Part-Time Laboratory & Warehouse Technician (On-Call / As-Needed)
Concrete Technologies IncCompany: C-Crete Technologies Location: San Leandro, CA Job Type: Part-Time, On-Call / As-Needed Schedule: Flexible, based on operational needs Compensation: Competitive hourly rate based on experience and skills About C-Crete Technologies C-Crete Technologies is a leading materials science company committed to developing and scaling the next generation of infrastructure materials with an ultra-low or negative CO₂ footprint. Through innovation and environmental stewardship, C-Crete is working to transform the construction industry with sustainable materials. Position Overview C-Crete is seeking a reliable, motivated, and hands-on Part-Time Laboratory & Warehouse Technician (On-Call / As-Needed) to support daily laboratory, warehouse, equipment, and material-handling operations on an as-needed basis. This is a physically active, hands-on position ideal for someone who enjoys working with tools, machinery, and equipment, solving practical problems, and taking on a variety of tasks. We are looking for someone who is flexible, resourceful, mechanically inclined, and willing to learn new skills. Responsibilities will vary depending on ongoing projects and operational needs. The successful candidates will have a competitive salary ranging from $25 to $40 per hour, depending on experience, technical proficiency, and professional background. Job Duties and Responsibilities Assist with mixing, preparing, handling, and testing cementitious materials, concrete, and other construction materials. Lift, move, load, unload, and organize bags of cement, aggregates, raw materials, tools, and equipment. Assist with assembling, installing, operating, troubleshooting, and maintaining existing and new laboratory and production equipment. Use common hand tools and power tools for mechanical assembly, repairs, adjustments, and general maintenance. Be willing to learn and safely operate specialized equipment such as concrete drills, grinders, saws, mixers, and other laboratory or industrial tools. Operate a forklift to move and organize materials and equipment. Maintain a clean, safe, and organized laboratory and warehouse, including dust removal, material cleanup, equipment cleaning, and general housekeeping. Support material receiving, inventory organization, storage, and shipping preparation. Assist with laboratory experiments, pilot-scale production, and field activities as needed. Perform minor repairs, equipment adjustments, and general facility maintenance within training and qualifications. Support other hands-on tasks as needed to keep laboratory, warehouse, and production operations running smoothly and efficiently. Required Qualifications High school diploma or equivalent. Have a legal work permit in the US. Strong hands-on and mechanical aptitude with experience using basic hand tools and power tools. Comfortable performing physically demanding work in a laboratory and warehouse environment, including potential exposure to dust from raw materials, and willing to wear appropriate personal protective equipment (PPE), such as respirators or dust masks, safety glasses, gloves, and protective clothing, as required. · Ability to safely lift and move <50 lbs frequently and over 50 lbs occasionally with assistance from others. Willingness to learn how to operate unfamiliar tools, machinery, and specialized equipment safely. Strong attention to safety, cleanliness, and organization. Dependable, punctual, proactive, and able to work independently with minimal supervision. Flexible availability to work on an as-needed basis, depending on project demands. Positive, can-do attitude and willingness to take on a wide variety of tasks. Preferred Qualifications Previous experience in a warehouse, construction, manufacturing, mechanical workshop, laboratory, or similar hands-on environment. Experience operating forklifts or other material-handling equipment. Familiarity with concrete mixing/testing, drilling, grinding, cutting, or construction-relat…